✅ e2e mock: add AppSec scenario + custom remediation header assertion

Address review feedback on the binary e2e suite:

- mocklapi: add an AppSec WAF stand-in (--appsec-addr) that blocks any URI
  containing "rpc2" — the exact probe from examples/appsec-enabled — and allows
  the rest. Lets the suite exercise the plugin's AppSec wiring (header
  forwarding + allow/block enforcement) without the real CRS engine.
- new scenarios/appsec: benign request passes, /foo/rpc2 is 403.
- custom-ban-page: assert the banned response carries the custom remediation
  header (remediationHeadersCustomName), per review.
- README: drop the "don't open issues / AppSec intentionally absent" framing;
  describe what the suite actually covers, including AppSec wiring.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.github/workflows/e2e.yml

@@ -0,0 +1,42 @@
+name: E2E
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+concurrency:
+  group: e2e-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  e2e:
+    name: e2e (binary + mock LAPI)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - name: Set up Go
+        uses: actions/setup-go@v6
+        with:
+          # Track go.mod (Go 1.22) — the plugin's yaegi-bound floor. Keeps the
+          # single source of truth and builds the mock on the supported version.
+          go-version-file: go.mod
+      # CI runs the binary/mock suite only: Traefik as a downloaded binary +
+      # a small LAPI mock (no Docker, no real Crowdsec). It validates the
+      # plugin's own behaviour. Crowdsec / AppSec correctness is upstream's
+      # responsibility, so those are intentionally out of scope here. The
+      # Docker suite (tests/e2e/scenarios) stays available for local debugging.
+      # `-k` keeps going after a failing scenario so the logs cover all of
+      # them, while make still exits non-zero if any scenario failed.
+      - name: Run mock scenarios
+        run: make -k e2e_mock
+      - name: Upload logs on failure
+        if: failure()
+        uses: actions/upload-artifact@v4
+        with:
+          name: e2e-logs
+          path: /tmp/e2e-mock-*.log
+          if-no-files-found: ignore

.github/workflows/main.yml

@@ -1,5 +1,8 @@
 name: Main
 
+permissions:
+  contents: read
+
 on:
   push:
     branches:
@@ -24,20 +27,20 @@ jobs:
 
       # https://github.com/marketplace/actions/setup-go-environment
       - name: Set up Go ${{ env.GO_VERSION }}
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: ${{ env.GO_VERSION }}
 
       # https://github.com/marketplace/actions/checkout
       - name: Check out code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           path: go/src/github.com/${{ github.repository }}
           fetch-depth: 0
 
       # https://github.com/marketplace/actions/cache
       - name: Cache Go modules
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ${{ github.workspace }}/go/pkg/mod
           key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}

.github/workflows/release.yml

@@ -0,0 +1,46 @@
+name: Release Version Update
+
+on:
+  release:
+    types: [published]
+
+permissions:
+  contents: write
+
+jobs:
+  update-version:
+    name: Update version in source
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+        with:
+          ref: main
+
+      - name: Extract version from tag
+        id: get_version
+        run: |
+          TAG="${{ github.event.release.tag_name }}"
+          VERSION="${TAG#v}"
+          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
+          echo "tag=$TAG" >> "$GITHUB_OUTPUT"
+
+      - name: Update version in version.go
+        run: |
+          sed -i 's/pluginVersion = "[^"]*"/pluginVersion = "'"${{ steps.get_version.outputs.version }}"'"/' version.go
+          cat version.go
+
+      - name: Commit, push, and retag
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add version.go
+          if git diff --cached --quiet; then
+            echo "Version already up to date, nothing to commit"
+            exit 0
+          fi
+          git commit -m "⬆️ chore: bump version to ${{ steps.get_version.outputs.version }}"
+          git push origin main
+          # Move the release tag to include the version update
+          git tag -f "${{ steps.get_version.outputs.tag }}"
+          git push -f origin "${{ steps.get_version.outputs.tag }}"

.gitignore

@@ -5,3 +5,7 @@ conf
 db
 logs
 docker-compose.dev.yml
+
+# Binary e2e suite working cache: Traefik binary + compiled mock. Persisted
+# across local runs; CI runs on fresh runners so it is recreated every time.
+tests/e2e/mock/.cache/

.golangci.yml

@@ -73,6 +73,7 @@ linters:
     - gci
     - mnd
     - exportloopref
+    - contextcheck
 issues:
   exclude-use-default: false
   max-same-issues: 0

Makefile

@@ -1,7 +1,11 @@
-.PHONY: lint test vendor clean
+.PHONY: lint test vendor clean e2e_mock
 
 export GO111MODULE=on
 
+# Binary/mock suite (Traefik binary + mock LAPI). This is what CI runs.
+# The local Docker suite (make e2e) lives in a separate PR/branch.
+E2E_MOCK_SCENARIOS := stream-mode live-mode none-mode trusted-ips custom-ban-page captcha appsec
+
 default: lint test
 
 lint:
@@ -13,6 +17,11 @@ test:
 yaegi_test:
 	yaegi test -v .
 
+e2e_mock: $(addprefix e2e_mock_,$(E2E_MOCK_SCENARIOS))
+
+e2e_mock_%:
+	./tests/e2e/mock/scenarios/$*/run.sh
+
 vendor:
 	go mod vendor
 
@@ -41,13 +50,16 @@ run_tlsauth:
 	docker compose -f examples/tls-auth/docker-compose.yml up  -d --remove-orphans
 
 run_appsec:
-	docker compose -f examples/appsec-enabled/docker-compose.yml up -d
+	docker compose -f examples/appsec-enabled/docker-compose.yml up -d --remove-orphans
+
+run_custom_captcha:
+	docker compose -f examples/custom-captcha/docker-compose.yml up -d --remove-orphans
 
 run_captcha:
-	docker compose -f examples/captcha/docker-compose.yml up -d
+	docker compose -f examples/captcha/docker-compose.yml up -d --remove-orphans
 
 run_custom_ban_page:
-	docker compose -f examples/custom-ban-page/docker-compose.yml up -d
+	docker compose -f examples/custom-ban-page/docker-compose.yml up -d --remove-orphans
 
 run:
 	docker compose -f docker-compose.yml up -d --remove-orphans
@@ -98,6 +110,7 @@ clean_all_docker:
 	docker compose -f examples/tls-auth/docker-compose.yml down --remove-orphans
 	docker compose -f examples/appsec-enabled/docker-compose.yml down --remove-orphans
 	docker compose -f examples/captcha/docker-compose.yml down --remove-orphans
+	docker compose -f examples/custom-captcha/docker-compose.yml down --remove-orphans
 	docker compose -f examples/custom-ban-page/docker-compose.yml down --remove-orphans
 	docker compose -f docker-compose.local.yml down --remove-orphans
 	docker compose -f docker-compose.yml down --remove-orphans

README.md

@@ -39,6 +39,7 @@ The following captcha providers are supported now:
 - [hcaptcha](https://www.hcaptcha.com/)
 - [recaptcha](https://www.google.com/recaptcha/about/)
 - [turnstile](https://www.cloudflare.com/products/turnstile/)
+- [custom/wicketkeeper](https://github.com/a-ve/wicketkeeper)
 
 There are 5 operating modes (CrowdsecMode) for this plugin:
 
@@ -308,12 +309,17 @@ make run
 
 ### Note
 
-**/!\ Cache is shared by all services**
-_This means if an IP is banned, all services which are protected by an instance of the plugin will deny requests from that IP_
-Only one instance of the plugin is _possible_.
+> [!IMPORTANT]  
+> Some of the behaviours and configuration parameters are shared globally across _all_ crowdsec middlewares even if you declare different middlewares with different settings.
+>
+> **Cache is shared by all services**: This means if an IP is banned, all services which are protected by an instance of the plugin will deny requests from that IP
+>
+> If you define different caches for different middlewares, only the first one to be instantiated will be bound to the crowdsec stream.
+>
+> Overall, this middleware is designed in such a way that **only one instance of the plugin is _possible_.** You can have multiple crowdsec middlewares in the same cluster, the key parameters must be aligned (MetricsUpdateIntervalSeconds, CrowdsecMode, CrowdsecAppsecEnabled, etc.)
 
-**/!\ Appsec maximum body limit is defaulted to 10MB**
-_By careful when you upgrade to >1.4.x_
+> [!WARNING]  
+> **Appsec maximum body limit is defaulted to 10MB** > _Be careful when you upgrade to >1.4.x_
 
 ### Variables
 
@@ -323,12 +329,21 @@ _By careful when you upgrade to >1.4.x_
   - Enable the plugin
 - LogLevel
   - string
-  - default: `INFO`, expected values are: `INFO`, `DEBUG`, `ERROR`
-  - Log are written to `stdout` / `stderr` of file if LogFilePath is provided
+  - default: `INFO`, expected values are: `DEBUG`, `INFO`, `WARN`, `ERROR`
+  - Log are written to `stdout` / `stderr` or file if LogFilePath is provided
+- LogFormat
+  - string
+  - default: `common`, expected values are: `common`, `json`
+  - Log format: `common` for traditional text logs, `json` for structured JSON logs
 - LogFilePath
   - string
   - default: ""
   - File Path to write logs, must be writable by Traefik, Log rotation may require a restart of traefik
+- MetricsUpdateIntervalSeconds
+  - int64
+  - default: 600
+  - Interval in seconds between metrics updates to Crowdsec
+  - If set to zero or less, metrics collection is disabled
 - CrowdsecMode
   - string
   - default: `live`, expected values are: `none`, `live`, `stream`, `alone`, `appsec`
@@ -339,7 +354,18 @@ _By careful when you upgrade to >1.4.x_
 - CrowdsecAppsecHost
   - string
   - default: "crowdsec:7422"
-  - Crowdsec Appsec Server available on which host and port. The scheme will be handled by the CrowdsecLapiScheme var.
+  - Crowdsec Appsec Server available on which host and port.
+- CrowdsecAppsecTlsInsecureVerify
+  - bool
+  - default: false
+  - Disable verification of certificate presented by Appsec
+- CrowdsecAppsecTlsCertificateAuthority
+  - string
+  - default: ""
+  - PEM-encoded Certificate Authority of Appsec
+- CrowdsecAppsecScheme
+  - string
+  - default: value of `CrowdsecLapiScheme`, expected values are: `http`, `https`
 - CrowdsecAppsecPath
   - string
   - default: "/"
@@ -356,6 +382,10 @@ _By careful when you upgrade to >1.4.x_
   - int64
   - default: 10485760 (= 10MB)
   - Transmit only the first number of bytes to Crowdsec Appsec Server.
+- CrowdsecAppsecKey
+  - string
+  - default: value of `CrowdsecLapiKey`
+  - Crowdsec AppSec key for the bouncer.
 - CrowdsecLapiScheme
   - string
   - default: `http`, expected values are: `http`, `https`
@@ -394,7 +424,7 @@ _By careful when you upgrade to >1.4.x_
 - RemediationHeadersCustomName
   - string
   - default: ""
-  - Name of the header you want in response when request are cancelled (possible value of the header `ban` or `captcha`)
+  - Name of the header you want in response when request are handled by plugin (possible value of the header `ban`, `captcha` or `solved-captcha`)
 - ForwardedHeadersCustomName
   - string
   - default: "X-Forwarded-For"
@@ -435,6 +465,12 @@ _By careful when you upgrade to >1.4.x_
   - int64
   - default: 0
   - Used only in `stream` and `alone` mode, the maximum number of time we can not reach Crowdsec before blocking traffic (set -1 to never block)
+- StreamStartupBlock
+  - bool
+  - default: true
+  - Used only in `stream` and `alone` mode, controls whether the initial stream update runs synchronously or asynchronously during plugin initialization
+  - When `true`, plugin initialization waits for Crowdsec to be ready before serving traffic.
+  - **Warning**: When `false`, all requests bypass remediation until the first stream sync completes — banned IPs will be allowed through during this window. Only disable when startup availability is more important than blocking at startup.
 - DefaultDecisionSeconds
   - int64
   - default: 60
@@ -454,7 +490,19 @@ _By careful when you upgrade to >1.4.x_
   - Used only in `alone` mode, scenarios for Crowdsec CAPI
 - CaptchaProvider
   - string
-  - Provider to validate the captcha, expected values are: `hcaptcha`, `recaptcha`, `turnstile`
+  - Provider to validate the captcha, expected values are: `hcaptcha`, `recaptcha`, `turnstile` or `custom`
+- CaptchaCustomJsURL
+  - string
+  - If CaptchaProvider is `custom`, URL used to load the challenge in the HTML (in case of hcaptcha: `https://hcaptcha.com/1/api.js`)
+- CaptchaCustomValidateURL
+  - string
+  - If CaptchaProvider is `custom`, URL used to validate the challenge (in case of hcaptcha: `https://api.hcaptcha.com/siteverify`)
+- CaptchaCustomKey
+  - string
+  - If CaptchaProvider is `custom`, used to set class name of the div used by captcha provider (in case of hcaptcha: `h-captcha`)
+- CaptchaCustomResponse
+  - string
+  - If CaptchaProvider is `custom`, used to set the field in the POST body from the captcha.html to Traefik (in case of hcaptcha: `h-captcha-response`)
 - CaptchaSiteKey
   - string
   - Site key for the captcha provider
@@ -473,6 +521,10 @@ _By careful when you upgrade to >1.4.x_
   - string
   - default: ""
   - Path where the ban html file is stored (default empty ""=disabled)
+- TraceHeadersCustomName
+  - string
+  - default: ""
+  - Request Header name whose value to inject in ban HTML response (default empty ""=disabled)
 
 ### Configuration
 
@@ -494,7 +546,37 @@ experimental:
 ```
 
 ```yaml
-# Dynamic configuration
+# Simplified dynamic configuration
+
+http:
+  routers:
+    my-router:
+      rule: host(`whoami.localhost`)
+      service: service-foo
+      entryPoints:
+        - web
+      middlewares:
+        - crowdsec
+
+  services:
+    service-foo:
+      loadBalancer:
+        servers:
+          - url: http://127.0.0.1:5000
+
+  middlewares:
+    crowdsec:
+      plugin:
+        bouncer:
+          enabled: true
+          logLevel: DEBUG
+          crowdsecMode: live
+          crowdsecLapiKey: privateKey-foo
+          crowdsecLapiHost: crowdsec:8080
+```
+
+```yaml
+# Full dynamic configuration
 
 http:
   routers:
@@ -518,14 +600,17 @@ http:
         bouncer:
           enabled: false
           logLevel: DEBUG
+          logFormat: common
           LogFilePath: ""
           updateIntervalSeconds: 60
           updateMaxFailure: 0
+          streamStartupBlock: true
           defaultDecisionSeconds: 60
           remediationStatusCode: 403
           httpTimeoutSeconds: 10
           crowdsecMode: live
           crowdsecAppsecEnabled: false
+          crowdsecAppsecScheme: ""
           crowdsecAppsecHost: crowdsec:7422
           crowdsecAppsecPath: "/"
           crowdsecAppsecFailureBlock: true
@@ -579,11 +664,13 @@ http:
           captchaGracePeriodSeconds: 1800
           captchaHTMLFilePath: /captcha.html
           banHTMLFilePath: /ban.html
+          traceHeadersCustomName: X-Request-ID
+          metricsUpdateIntervalSeconds: 600
 ```
 
 #### Fill variable with value of file
 
-`CrowdsecLapiTlsCertificateBouncerKey`, `CrowdsecLapiTlsCertificateBouncer`, `CrowdsecLapiTlsCertificateAuthority`, `CrowdsecCapiMachineId`, `CrowdsecCapiPassword`, `CrowdsecLapiKey`, `CaptchaSiteKey`, `CaptchaSecretKey` and `RedisCachePassword` can be provided with the content as raw or through a file path that Traefik can read.  
+`CrowdsecLapiTlsCertificateBouncerKey`, `CrowdsecLapiTlsCertificateBouncer`, `CrowdsecLapiTlsCertificateAuthority`, `CrowdsecAppsecTlsCertificateAuthority`, `CrowdsecCapiMachineId`, `CrowdsecCapiPassword`, `CrowdsecLapiKey`, `CrowdsecAppsecKey`, `CaptchaSiteKey`, `CaptchaSecretKey` and `RedisCachePassword` can be provided with the content as raw or through a file path that Traefik can read.  
 The file variable will be used as preference if both content and file are provided for the same variable.
 
 Format is:
@@ -646,6 +733,13 @@ Set the `crowdsecLapiScheme` to https.
 Crowdsec must be listening in HTTPS for this to work.
 Please see the [tls-auth example](https://github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/blob/main/examples/tls-auth/README.md) or the official documentation: [docs.crowdsec.net/docs/local_api/tls_auth/](https://docs.crowdsec.net/docs/local_api/tls_auth/)
 
+#### Use HTTPS to communicate with the Appsec
+
+To communicate with the Appsec in HTTPS you need to either accept any certificates by setting the `crowdsecAppsecTLSInsecureVerify` to true or add the CA used by the server certificate of Crowdsec using `crowdsecAppsecTLSCertificateAuthority` or `crowdsecAppsecTLSCertificateAuthorityFile`.
+Set the `crowdsecAppsecScheme` to https.
+
+Currently AppSec does not support mTLS authentication for the AppSec Component.
+
 #### Manually add an IP to the blocklist (for testing purposes)
 
 ```bash
@@ -678,6 +772,8 @@ docker exec crowdsec cscli decisions remove --ip 10.0.0.10 -t captcha
 
 #### 10. Using Traefik with Custom Ban HTML Page [examples/custom-ban-page/README.md](https://github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/blob/main/examples/custom-ban-page/README.md)
 
+#### 11. Using Traefik with Custom Captcha Whiketkeeper[examples/custom-captcha/README.md](https://github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/blob/main/examples/custom-captcha/README.md)
+
 ### Local Mode
 
 Traefik also offers a developer mode that can be used for temporary testing of plugins not hosted on GitHub.

bouncer.go

@@ -9,10 +9,14 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	htmltemplate "html/template"
 	"io"
+	"log/slog"
 	"net/http"
 	"net/url"
+	"strconv"
 	"strings"
+	"sync/atomic"
 	"text/template"
 	"time"
 
@@ -33,6 +37,7 @@ const (
 	crowdsecLapiHeader       = "X-Api-Key"
 	crowdsecLapiRoute        = "v1/decisions"
 	crowdsecLapiStreamRoute  = "v1/decisions/stream"
+	crowdsecLapiMetricsRoute = "v1/usage-metrics"
 	crowdsecCapiHost         = "api.crowdsec.net"
 	crowdsecCapiHeader       = "Authorization"
 	crowdsecCapiLoginRoute   = "v2/watchers/login"
@@ -40,12 +45,32 @@ const (
 	cacheTimeoutKey          = "updated"
 )
 
+// ##############################################################
+// Important: traefik creates an instance of the bouncer per route.
+// We rely on globals (both here and in the memory cache) to share info between
+// routes. This means that some of the plugins parameters will only work "once"
+// and will take the values of the first middleware that was instantiated even
+// if you have different middlewares with different parameters. This design
+// makes it impossible to have multiple crowdsec implementations per cluster (unless you have multiple traefik deployments in it)
+// - updateInterval
+// - updateMaxFailure
+// - defaultDecisionTimeout
+// - redisUnreachableBlock
+// - appsecEnabled
+// - appsecHost
+// - metricsUpdateIntervalSeconds
+// - others...
+// ###################################
+
 //nolint:gochecknoglobals
 var (
-	isStartup               = true
+	isCrowdsecStreamStartup = true
 	isCrowdsecStreamHealthy = true
-	updateFailure           = 0
-	ticker                  chan bool
+	updateFailure           int64
+	streamTicker            chan bool
+	metricsTicker           chan bool
+	lastMetricsPush         time.Time
+	blockedRequests         int64
 )
 
 // CreateConfig creates the default plugin configuration.
@@ -61,8 +86,10 @@ type Bouncer struct {
 
 	enabled                 bool
 	appsecEnabled           bool
+	appsecScheme            string
 	appsecHost              string
 	appsecPath              string
+	appsecKey               string
 	appsecFailureBlock      bool
 	appsecUnreachableBlock  bool
 	appsecBodyLimit         int64
@@ -75,7 +102,7 @@ type Bouncer struct {
 	crowdsecPassword        string
 	crowdsecScenarios       []string
 	updateInterval          int64
-	updateMaxFailure        int
+	updateMaxFailure        int64
 	defaultDecisionTimeout  int64
 	remediationStatusCode   int
 	remediationCustomHeader string
@@ -83,20 +110,24 @@ type Bouncer struct {
 	crowdsecStreamRoute     string
 	crowdsecHeader          string
 	redisUnreachableBlock   bool
-	banTemplateString       string
+	banTemplate             *htmltemplate.Template
+	traceCustomHeader       string
 	clientPoolStrategy      *ip.PoolStrategy
 	serverPoolStrategy      *ip.PoolStrategy
 	httpClient              *http.Client
+	httpAppsecClient        *http.Client
 	cacheClient             *cache.Client
 	captchaClient           *captcha.Client
-	log                     *logger.Log
+	log                     *slog.Logger
 }
 
 // New creates the crowdsec bouncer plugin.
+//
+//nolint:nestif,gocyclo,gocognit
 func New(_ context.Context, next http.Handler, config *configuration.Config, name string) (http.Handler, error) {
 	config.LogLevel = strings.ToUpper(config.LogLevel)
-	log := logger.New(config.LogLevel, config.LogFilePath)
-	err := configuration.ValidateParams(config)
+	log := logger.NewWithFormat(config.LogLevel, config.LogFilePath, config.LogFormat)
+	err := configuration.ValidateParams(config, log)
 	if err != nil {
 		log.Error("New:validateParams " + err.Error())
 		return nil, err
@@ -105,6 +136,23 @@ func New(_ context.Context, next http.Handler, config *configuration.Config, nam
 	serverChecker, _ := ip.NewChecker(log, config.ForwardedHeadersTrustedIPs)
 	clientChecker, _ := ip.NewChecker(log, config.ClientTrustedIPs)
 
+	var tlsAppsecConfig *tls.Config
+	if config.CrowdsecAppsecEnabled {
+		tlsAppsecConfig, err = configuration.GetTLSConfigCrowdsec(config, log, true)
+		if config.CrowdsecAppsecScheme == "" {
+			config.CrowdsecAppsecScheme = config.CrowdsecLapiScheme
+		}
+		if err != nil {
+			log.Error("New:getTLSConfigCrowdsec fail to get tlsAppsecConfig " + err.Error())
+			return nil, err
+		}
+		apiAppsecKey, errAppsecKey := configuration.GetVariable(config, "CrowdsecAppsecKey")
+		if errAppsecKey != nil && len(tlsAppsecConfig.Certificates) == 0 {
+			log.Info("New:crowdsecLapiKey fail to get CrowdsecAppsecKey and no client certificate setup " + errAppsecKey.Error())
+		}
+		config.CrowdsecAppsecKey = apiAppsecKey
+	}
+
 	var tlsConfig *tls.Config
 	crowdsecStreamRoute := ""
 	crowdsecHeader := ""
@@ -114,36 +162,31 @@ func New(_ context.Context, next http.Handler, config *configuration.Config, nam
 		config.CrowdsecLapiScheme = configuration.HTTPS
 		config.CrowdsecLapiHost = crowdsecCapiHost
 		config.CrowdsecLapiPath = "/"
-		config.CrowdsecAppsecEnabled = false
 		config.UpdateIntervalSeconds = 7200 // 2 hours
 		crowdsecStreamRoute = crowdsecCapiStreamRoute
 		crowdsecHeader = crowdsecCapiHeader
 	} else {
 		crowdsecStreamRoute = crowdsecLapiStreamRoute
 		crowdsecHeader = crowdsecLapiHeader
-		tlsConfig, err = configuration.GetTLSConfigCrowdsec(config, log)
+		tlsConfig, err = configuration.GetTLSConfigCrowdsec(config, log, false)
 		if err != nil {
 			log.Error("New:getTLSConfigCrowdsec fail to get tlsConfig " + err.Error())
 			return nil, err
 		}
-		apiKey, errAPIKey := configuration.GetVariable(config, "CrowdsecLapiKey")
-		if errAPIKey != nil && len(tlsConfig.Certificates) == 0 {
-			log.Error("New:crowdsecLapiKey fail to get CrowdsecLapiKey and no client certificate setup " + errAPIKey.Error())
-			return nil, errAPIKey
+		apiKey, errKey := configuration.GetVariable(config, "CrowdsecLapiKey")
+		if errKey != nil && len(tlsConfig.Certificates) == 0 {
+			log.Error("New:crowdsecLapiKey fail to get CrowdsecLapiKey and no client certificate setup " + errKey.Error())
+			return nil, errKey
 		}
 		config.CrowdsecLapiKey = apiKey
+		if config.CrowdsecAppsecKey == "" {
+			config.CrowdsecAppsecKey = apiKey
+		}
 	}
 
-	var banTemplateString string
+	var banTemplate *htmltemplate.Template
 	if config.BanHTMLFilePath != "" {
-		var buf bytes.Buffer
-		banTemplate, _ := configuration.GetHTMLTemplate(config.BanHTMLFilePath)
-		err = banTemplate.Execute(&buf, nil)
-		if err != nil {
-			log.Error("New:banTemplate is bad formatted " + err.Error())
-			return nil, err
-		}
-		banTemplateString = buf.String()
+		banTemplate, _ = configuration.GetHTMLTemplate(config.BanHTMLFilePath)
 	}
 
 	bouncer := &Bouncer{
@@ -154,8 +197,10 @@ func New(_ context.Context, next http.Handler, config *configuration.Config, nam
 		enabled:                 config.Enabled,
 		crowdsecMode:            config.CrowdsecMode,
 		appsecEnabled:           config.CrowdsecAppsecEnabled,
+		appsecScheme:            config.CrowdsecAppsecScheme,
 		appsecHost:              config.CrowdsecAppsecHost,
 		appsecPath:              config.CrowdsecAppsecPath,
+		appsecKey:               config.CrowdsecAppsecKey,
 		appsecFailureBlock:      config.CrowdsecAppsecFailureBlock,
 		appsecUnreachableBlock:  config.CrowdsecAppsecUnreachableBlock,
 		appsecBodyLimit:         config.CrowdsecAppsecBodyLimit,
@@ -173,7 +218,8 @@ func New(_ context.Context, next http.Handler, config *configuration.Config, nam
 		defaultDecisionTimeout:  config.DefaultDecisionSeconds,
 		remediationStatusCode:   config.RemediationStatusCode,
 		redisUnreachableBlock:   config.RedisCacheUnreachableBlock,
-		banTemplateString:       banTemplateString,
+		banTemplate:             banTemplate,
+		traceCustomHeader:       config.TraceHeadersCustomName,
 		crowdsecStreamRoute:     crowdsecStreamRoute,
 		crowdsecHeader:          crowdsecHeader,
 		log:                     log,
@@ -191,6 +237,14 @@ func New(_ context.Context, next http.Handler, config *configuration.Config, nam
 			},
 			Timeout: time.Duration(config.HTTPTimeoutSeconds) * time.Second,
 		},
+		httpAppsecClient: &http.Client{
+			Transport: &http.Transport{
+				MaxIdleConns:    10,
+				IdleConnTimeout: 30 * time.Second,
+				TLSClientConfig: tlsAppsecConfig,
+			},
+			Timeout: time.Duration(config.HTTPTimeoutSeconds) * time.Second,
+		},
 		cacheClient:   &cache.Client{},
 		captchaClient: &captcha.Client{},
 	}
@@ -215,6 +269,10 @@ func New(_ context.Context, next http.Handler, config *configuration.Config, nam
 			Timeout:   time.Duration(config.HTTPTimeoutSeconds) * time.Second,
 		},
 		config.CaptchaProvider,
+		config.CaptchaCustomJsURL,
+		config.CaptchaCustomKey,
+		config.CaptchaCustomResponse,
+		config.CaptchaCustomValidateURL,
 		config.CaptchaSiteKey,
 		config.CaptchaSecretKey,
 		config.RemediationHeadersCustomName,
@@ -222,22 +280,36 @@ func New(_ context.Context, next http.Handler, config *configuration.Config, nam
 		config.CaptchaGracePeriodSeconds,
 	)
 	if err != nil {
+		log.Error("CaptchaClient not valid " + err.Error())
 		return nil, err
 	}
 
-	if (config.CrowdsecMode == configuration.StreamMode || config.CrowdsecMode == configuration.AloneMode) && ticker == nil {
+	if (config.CrowdsecMode == configuration.StreamMode || config.CrowdsecMode == configuration.AloneMode) && streamTicker == nil {
 		if config.CrowdsecMode == configuration.AloneMode {
 			if err := getToken(bouncer); err != nil {
 				bouncer.log.Error("New:getToken " + err.Error())
 				return nil, err
 			}
 		}
+		if config.StreamStartupBlock {
 			handleStreamTicker(bouncer)
-		isStartup = false
-		ticker = startTicker(config, log, func() {
+		} else {
+			go handleStreamTicker(bouncer)
+		}
+		streamTicker = startTicker("stream", config.UpdateIntervalSeconds, log, func() {
 			handleStreamTicker(bouncer)
 		})
 	}
+
+	// Start metrics ticker if not already running
+	if metricsTicker == nil && config.MetricsUpdateIntervalSeconds > 0 {
+		lastMetricsPush = time.Now() // Initialize lastMetricsPush when starting the metrics ticker
+		go handleMetricsTicker(bouncer)
+		metricsTicker = startTicker("metrics", config.MetricsUpdateIntervalSeconds, log, func() {
+			handleMetricsTicker(bouncer)
+		})
+	}
+
 	bouncer.log.Debug("New initialized mode:" + config.CrowdsecMode)
 
 	return bouncer, nil
@@ -256,13 +328,13 @@ func (bouncer *Bouncer) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
 	remoteIP, err := ip.GetRemoteIP(req, bouncer.serverPoolStrategy, bouncer.forwardedCustomHeader)
 	if err != nil {
 		bouncer.log.Error(fmt.Sprintf("ServeHTTP:getRemoteIp ip:%s %s", remoteIP, err.Error()))
-		handleBanServeHTTP(bouncer, rw)
+		bouncer.handleBanServeHTTP(rw, req, remoteIP, configuration.ReasonTECH)
 		return
 	}
 	isTrusted, err := bouncer.clientPoolStrategy.Checker.Contains(remoteIP)
 	if err != nil {
 		bouncer.log.Error(fmt.Sprintf("ServeHTTP:checkerContains ip:%s %s", remoteIP, err.Error()))
-		handleBanServeHTTP(bouncer, rw)
+		bouncer.handleBanServeHTTP(rw, req, remoteIP, configuration.ReasonTECH)
 		return
 	}
 	// if our IP is in the trusted list we bypass the next checks
@@ -273,7 +345,7 @@ func (bouncer *Bouncer) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
 	}
 
 	if bouncer.crowdsecMode == configuration.AppsecMode {
-		handleNextServeHTTP(bouncer, remoteIP, rw, req)
+		bouncer.handleNextServeHTTP(rw, req, remoteIP)
 		return
 	}
 
@@ -285,20 +357,20 @@ func (bouncer *Bouncer) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
 			bouncer.log.Debug(fmt.Sprintf("ServeHTTP:Get ip:%s isBanned:false %s", remoteIP, cacheErrString))
 			if !bouncer.redisUnreachableBlock && cacheErrString == cache.CacheUnreachable {
 				bouncer.log.Error(fmt.Sprintf("ServeHTTP:Get ip:%s redisUnreachable=true", remoteIP))
-				handleNextServeHTTP(bouncer, remoteIP, rw, req)
+				bouncer.handleNextServeHTTP(rw, req, remoteIP)
 				return
 			}
 			if cacheErrString != cache.CacheMiss {
 				bouncer.log.Error(fmt.Sprintf("ServeHTTP:Get ip:%s %s", remoteIP, cacheErrString))
-				handleBanServeHTTP(bouncer, rw)
+				bouncer.handleBanServeHTTP(rw, req, remoteIP, configuration.ReasonTECH)
 				return
 			}
 		} else {
 			bouncer.log.Debug(fmt.Sprintf("ServeHTTP ip:%s cache:hit isBanned:%v", remoteIP, value))
 			if value == cache.NoBannedValue {
-				handleNextServeHTTP(bouncer, remoteIP, rw, req)
+				bouncer.handleNextServeHTTP(rw, req, remoteIP)
 			} else {
-				handleRemediationServeHTTP(bouncer, remoteIP, value, rw, req)
+				bouncer.handleRemediationServeHTTP(rw, req, remoteIP, value)
 			}
 			return
 		}
@@ -307,18 +379,21 @@ func (bouncer *Bouncer) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
 	// Right here if we cannot join the stream we forbid the request to go on.
 	if bouncer.crowdsecMode == configuration.StreamMode || bouncer.crowdsecMode == configuration.AloneMode {
 		if isCrowdsecStreamHealthy {
-			handleNextServeHTTP(bouncer, remoteIP, rw, req)
+			bouncer.handleNextServeHTTP(rw, req, remoteIP)
 		} else {
 			bouncer.log.Debug(fmt.Sprintf("ServeHTTP isCrowdsecStreamHealthy:false ip:%s updateFailure:%d", remoteIP, updateFailure))
-			handleBanServeHTTP(bouncer, rw)
+			bouncer.handleBanServeHTTP(rw, req, remoteIP, configuration.ReasonTECH)
 		}
 	} else {
 		value, err := handleNoStreamCache(bouncer, remoteIP)
+		if err != nil {
+			bouncer.log.Debug("handleNoStreamCache:crowdsecQuery " + err.Error())
+		}
 		if value == cache.NoBannedValue {
-			handleNextServeHTTP(bouncer, remoteIP, rw, req)
+			bouncer.handleNextServeHTTP(rw, req, remoteIP)
 		} else {
 			bouncer.log.Debug(fmt.Sprintf("ServeHTTP:handleNoStreamCache ip:%s isBanned:%v %s", remoteIP, value, err.Error()))
-			handleRemediationServeHTTP(bouncer, remoteIP, value, rw, req)
+			bouncer.handleRemediationServeHTTP(rw, req, remoteIP, value)
 		}
 	}
 }
@@ -352,40 +427,61 @@ type Login struct {
 }
 
 // To append Headers we need to call rw.WriteHeader after set any header.
-func handleBanServeHTTP(bouncer *Bouncer, rw http.ResponseWriter) {
+func (bouncer *Bouncer) handleBanServeHTTP(rw http.ResponseWriter, req *http.Request, remoteIP, reason string) {
+	atomic.AddInt64(&blockedRequests, 1)
+
 	if bouncer.remediationCustomHeader != "" {
 		rw.Header().Set(bouncer.remediationCustomHeader, "ban")
 	}
-	if bouncer.banTemplateString == "" {
+	if bouncer.banTemplate == nil {
 		rw.WriteHeader(bouncer.remediationStatusCode)
 		return
 	}
 	rw.Header().Set("Content-Type", "text/html; charset=utf-8")
 	rw.WriteHeader(bouncer.remediationStatusCode)
-	_, err := fmt.Fprint(rw, bouncer.banTemplateString)
-	if err != nil {
-		bouncer.log.Error("handleBanServeHTTP could not write template to ResponseWriter")
+
+	if req.Method == http.MethodHead {
+		return
+	}
+	templateData := map[string]string{
+		"RemediationReason": reason,
+		"ClientIP":          remoteIP,
+	}
+
+	if bouncer.traceCustomHeader != "" {
+		headerVal := req.Header.Get(bouncer.traceCustomHeader)
+
+		if headerVal != "" {
+			templateData["TraceID"] = headerVal
 		}
 	}
 
-func handleRemediationServeHTTP(bouncer *Bouncer, remoteIP, remediation string, rw http.ResponseWriter, req *http.Request) {
+	err := bouncer.banTemplate.Execute(rw, templateData)
+
+	if err != nil {
+		bouncer.log.Warn("handleBanServeHTTP could not write template to ResponseWriter: " + err.Error())
+	}
+}
+
+func (bouncer *Bouncer) handleRemediationServeHTTP(rw http.ResponseWriter, req *http.Request, remoteIP, remediation string) {
 	bouncer.log.Debug(fmt.Sprintf("handleRemediationServeHTTP ip:%s remediation:%s", remoteIP, remediation))
-	if bouncer.captchaClient.Valid && remediation == cache.CaptchaValue {
+	if bouncer.captchaClient.Valid && remediation == cache.CaptchaValue && req.Method != http.MethodHead {
 		if bouncer.captchaClient.Check(remoteIP) {
-			handleNextServeHTTP(bouncer, remoteIP, rw, req)
+			bouncer.handleNextServeHTTP(rw, req, remoteIP)
 			return
 		}
+		atomic.AddInt64(&blockedRequests, 1) //  If we serve a captcha that should count as a dropped request.
 		bouncer.captchaClient.ServeHTTP(rw, req, remoteIP)
 		return
 	}
-	handleBanServeHTTP(bouncer, rw)
+	bouncer.handleBanServeHTTP(rw, req, remoteIP, configuration.ReasonLAPI)
 }
 
-func handleNextServeHTTP(bouncer *Bouncer, remoteIP string, rw http.ResponseWriter, req *http.Request) {
+func (bouncer *Bouncer) handleNextServeHTTP(rw http.ResponseWriter, req *http.Request, remoteIP string) {
 	if bouncer.appsecEnabled {
 		if err := appsecQuery(bouncer, remoteIP, req); err != nil {
 			bouncer.log.Debug(fmt.Sprintf("handleNextServeHTTP ip:%s isWaf:true %s", remoteIP, err.Error()))
-			handleBanServeHTTP(bouncer, rw)
+			bouncer.handleBanServeHTTP(rw, req, remoteIP, configuration.ReasonAPPSEC)
 			return
 		}
 	}
@@ -394,7 +490,7 @@ func handleNextServeHTTP(bouncer *Bouncer, remoteIP string, rw http.ResponseWrit
 
 func handleStreamTicker(bouncer *Bouncer) {
 	if err := handleStreamCache(bouncer); err != nil {
-		bouncer.log.Debug(fmt.Sprintf("handleStreamTicker updateFailure:%d isCrowdsecStreamHealthy:%t %s", updateFailure, isCrowdsecStreamHealthy, err.Error()))
+		bouncer.log.Warn(fmt.Sprintf("handleStreamTicker updateFailure:%d isCrowdsecStreamHealthy:%t %s", updateFailure, isCrowdsecStreamHealthy, err.Error()))
 		if bouncer.updateMaxFailure != -1 && updateFailure >= bouncer.updateMaxFailure && isCrowdsecStreamHealthy {
 			isCrowdsecStreamHealthy = false
 			bouncer.log.Error(fmt.Sprintf("handleStreamTicker:error updateFailure:%d %s", updateFailure, err.Error()))
@@ -406,11 +502,17 @@ func handleStreamTicker(bouncer *Bouncer) {
 	}
 }
 
-func startTicker(config *configuration.Config, log *logger.Log, work func()) chan bool {
-	ticker := time.NewTicker(time.Duration(config.UpdateIntervalSeconds) * time.Second)
+func handleMetricsTicker(bouncer *Bouncer) {
+	if err := reportMetrics(bouncer); err != nil {
+		bouncer.log.Error("handleMetricsTicker:reportMetrics " + err.Error())
+	}
+}
+
+func startTicker(name string, updateInterval int64, log *slog.Logger, work func()) chan bool {
+	ticker := time.NewTicker(time.Duration(updateInterval) * time.Second)
 	stop := make(chan bool, 1)
 	go func() {
-		defer log.Debug("ticker:stopped")
+		defer log.Debug(name + "_ticker:stopped")
 		for {
 			select {
 			case <-ticker.C:
@@ -432,7 +534,7 @@ func handleNoStreamCache(bouncer *Bouncer, remoteIP string) (string, error) {
 		Path:     bouncer.crowdsecPath + crowdsecLapiRoute,
 		RawQuery: fmt.Sprintf("ip=%v", remoteIP),
 	}
-	body, err := crowdsecQuery(bouncer, routeURL.String(), false)
+	body, err := crowdsecQuery(bouncer, routeURL.String(), nil)
 	if err != nil {
 		return cache.BannedValue, err
 	}
@@ -473,9 +575,9 @@ func handleNoStreamCache(bouncer *Bouncer, remoteIP string) (string, error) {
 	case "captcha":
 		value = cache.CaptchaValue
 	default:
-		bouncer.log.Debug("handleStreamCache:unknownType " + decision.Type)
+		bouncer.log.Info("handleStreamCache:unknownType " + decision.Type)
 	}
-	if isLiveMode {
+	if isLiveMode && bouncer.defaultDecisionTimeout > 0 {
 		durationSecond := int64(duration.Seconds())
 		if bouncer.defaultDecisionTimeout < durationSecond {
 			durationSecond = bouncer.defaultDecisionTimeout
@@ -491,7 +593,16 @@ func getToken(bouncer *Bouncer) error {
 		Host:   bouncer.crowdsecHost,
 		Path:   crowdsecCapiLoginRoute,
 	}
-	body, err := crowdsecQuery(bouncer, loginURL.String(), true)
+
+	// Move the login-specific payload here
+	loginData := []byte(fmt.Sprintf(
+		`{"machine_id": "%v","password": "%v","scenarios": ["%v"]}`,
+		bouncer.crowdsecMachineID,
+		bouncer.crowdsecPassword,
+		strings.Join(bouncer.crowdsecScenarios, `","`),
+	))
+
+	body, err := crowdsecQuery(bouncer, loginURL.String(), loginData)
 	if err != nil {
 		return err
 	}
@@ -500,11 +611,11 @@ func getToken(bouncer *Bouncer) error {
 	if err != nil {
 		return fmt.Errorf("getToken:parsingBody %w", err)
 	}
-	if login.Code == 200 && len(login.Token) > 0 {
+	if login.Code == http.StatusOK && len(login.Token) > 0 {
 		bouncer.crowdsecKey = login.Token
-		bouncer.log.Debug(fmt.Sprintf("getToken statusCode:%d", login.Code))
 		return nil
 	}
+	bouncer.log.Warn(fmt.Sprintf("getToken statusCode:%d", login.Code))
 	return fmt.Errorf("getToken statusCode:%d", login.Code)
 }
 
@@ -516,6 +627,7 @@ func handleStreamCache(bouncer *Bouncer) error {
 	_, err := bouncer.cacheClient.Get(cacheTimeoutKey)
 	if err == nil {
 		bouncer.log.Debug("handleStreamCache:alreadyUpdated")
+		isCrowdsecStreamStartup = false
 		return nil
 	}
 	if err.Error() != cache.CacheMiss {
@@ -526,9 +638,9 @@ func handleStreamCache(bouncer *Bouncer) error {
 		Scheme:   bouncer.crowdsecScheme,
 		Host:     bouncer.crowdsecHost,
 		Path:     bouncer.crowdsecPath + bouncer.crowdsecStreamRoute,
-		RawQuery: fmt.Sprintf("startup=%t", !isCrowdsecStreamHealthy || isStartup),
+		RawQuery: fmt.Sprintf("startup=%t", !isCrowdsecStreamHealthy || isCrowdsecStreamStartup),
 	}
-	body, err := crowdsecQuery(bouncer, streamRouteURL.String(), false)
+	body, err := crowdsecQuery(bouncer, streamRouteURL.String(), nil)
 	if err != nil {
 		return err
 	}
@@ -547,7 +659,7 @@ func handleStreamCache(bouncer *Bouncer) error {
 			case "captcha":
 				value = cache.CaptchaValue
 			default:
-				bouncer.log.Debug("handleStreamCache:unknownType " + decision.Type)
+				bouncer.log.Info("handleStreamCache:unknownType " + decision.Type)
 			}
 			bouncer.cacheClient.Set(decision.Value, value, int64(duration.Seconds()))
 		}
@@ -556,24 +668,19 @@ func handleStreamCache(bouncer *Bouncer) error {
 		bouncer.cacheClient.Delete(decision.Value)
 	}
 	bouncer.log.Debug("handleStreamCache:updated")
+	isCrowdsecStreamStartup = false
 	return nil
 }
 
-func crowdsecQuery(bouncer *Bouncer, stringURL string, isPost bool) ([]byte, error) {
+func crowdsecQuery(bouncer *Bouncer, stringURL string, data []byte) ([]byte, error) {
 	var req *http.Request
-	if isPost {
-		data := []byte(fmt.Sprintf(
-			`{"machine_id": "%v","password": "%v","scenarios": ["%v"]}`,
-			bouncer.crowdsecMachineID,
-			bouncer.crowdsecPassword,
-			strings.Join(bouncer.crowdsecScenarios, `","`),
-		))
+	if len(data) > 0 {
 		req, _ = http.NewRequest(http.MethodPost, stringURL, bytes.NewBuffer(data))
 	} else {
 		req, _ = http.NewRequest(http.MethodGet, stringURL, nil)
 	}
-	req.Header.Add(bouncer.crowdsecHeader, bouncer.crowdsecKey)
-	req.Header.Add("User-Agent", "Crowdsec-Bouncer-Traefik-Plugin/1.X.X")
+	req.Header.Set(bouncer.crowdsecHeader, bouncer.crowdsecKey)
+	req.Header.Set("User-Agent", "Crowdsec-Bouncer-Traefik-Plugin/"+pluginVersion)
 
 	res, err := bouncer.httpClient.Do(req)
 	if err != nil {
@@ -588,13 +695,16 @@ func crowdsecQuery(bouncer *Bouncer, stringURL string, isPost bool) ([]byte, err
 		if errToken := getToken(bouncer); errToken != nil {
 			return nil, fmt.Errorf("crowdsecQuery:renewToken url:%s %w", stringURL, errToken)
 		}
-		return crowdsecQuery(bouncer, stringURL, false)
+		return crowdsecQuery(bouncer, stringURL, nil)
 	}
-	if res.StatusCode != http.StatusOK {
-		return nil, fmt.Errorf("crowdsecQuery url:%s, statusCode:%d", stringURL, res.StatusCode)
-	}
-	body, err := io.ReadAll(res.Body)
 
+	// Check if the status code starts with 2
+	statusStr := strconv.Itoa(res.StatusCode)
+	if len(statusStr) < 1 || statusStr[0] != '2' {
+		return nil, fmt.Errorf("crowdsecQuery method:%s url:%s, statusCode:%d (expected: 2xx)", req.Method, stringURL, res.StatusCode)
+	}
+
+	body, err := io.ReadAll(res.Body)
 	if err != nil {
 		return nil, fmt.Errorf("crowdsecQuery:readBody %w", err)
 	}
@@ -603,12 +713,12 @@ func crowdsecQuery(bouncer *Bouncer, stringURL string, isPost bool) ([]byte, err
 
 func appsecQuery(bouncer *Bouncer, ip string, httpReq *http.Request) error {
 	routeURL := url.URL{
-		Scheme: bouncer.crowdsecScheme,
+		Scheme: bouncer.appsecScheme,
 		Host:   bouncer.appsecHost,
 		Path:   bouncer.appsecPath,
 	}
 	var req *http.Request
-	if bouncer.appsecBodyLimit > 0 && httpReq.Body != nil && httpReq.ContentLength > 0 {
+	if bouncer.appsecBodyLimit > 0 && httpReq.Body != nil {
 		var bodyBuffer bytes.Buffer
 		limitedReader := io.LimitReader(httpReq.Body, bouncer.appsecBodyLimit)
 		teeReader := io.TeeReader(limitedReader, &bodyBuffer)
@@ -628,14 +738,15 @@ func appsecQuery(bouncer *Bouncer, ip string, httpReq *http.Request) error {
 			req.Header.Add(key, value)
 		}
 	}
-	req.Header.Set(crowdsecAppsecHeader, bouncer.crowdsecKey)
+	req.Header.Set(crowdsecAppsecHeader, bouncer.appsecKey)
 	req.Header.Set(crowdsecAppsecIPHeader, ip)
 	req.Header.Set(crowdsecAppsecVerbHeader, httpReq.Method)
 	req.Header.Set(crowdsecAppsecHostHeader, httpReq.Host)
 	req.Header.Set(crowdsecAppsecURIHeader, httpReq.URL.String())
 	req.Header.Set(crowdsecAppsecUserAgent, httpReq.Header.Get("User-Agent"))
+	req.Header.Set("User-Agent", "Crowdsec-Bouncer-Traefik-Plugin/"+pluginVersion)
 
-	res, err := bouncer.httpClient.Do(req)
+	res, err := bouncer.httpAppsecClient.Do(req)
 	if err != nil {
 		bouncer.log.Error("appsecQuery:unreachable")
 		if bouncer.appsecUnreachableBlock {
@@ -664,3 +775,65 @@ func appsecQuery(bouncer *Bouncer, ip string, httpReq *http.Request) error {
 	}
 	return nil
 }
+
+func reportMetrics(bouncer *Bouncer) error {
+	now := time.Now()
+	currentCount := atomic.LoadInt64(&blockedRequests)
+	windowSizeSeconds := int(now.Sub(lastMetricsPush).Seconds())
+
+	bouncer.log.Debug(fmt.Sprintf("reportMetrics: blocked_requests=%d window_size=%ds", currentCount, windowSizeSeconds))
+
+	metrics := map[string]interface{}{
+		"remediation_components": []map[string]interface{}{
+			{
+				"version": pluginVersion,
+				"type":    "bouncer",
+				"name":    "traefik_plugin",
+				"metrics": []map[string]interface{}{
+					{
+						"items": []map[string]interface{}{
+							{
+								"name":  "dropped",
+								"value": currentCount,
+								"unit":  "request",
+								"labels": map[string]string{
+									"type": "traefik_plugin",
+								},
+							},
+						},
+						"meta": map[string]interface{}{
+							"window_size_seconds": windowSizeSeconds,
+							"utc_now_timestamp":   now.Unix(),
+						},
+					},
+				},
+				"utc_startup_timestamp": time.Now().Unix(),
+				"feature_flags":         []string{},
+				"os": map[string]string{
+					"name":    "unknown",
+					"version": "unknown",
+				},
+			},
+		},
+	}
+
+	data, err := json.Marshal(metrics)
+	if err != nil {
+		return fmt.Errorf("reportMetrics:marshal %w", err)
+	}
+
+	metricsURL := url.URL{
+		Scheme: bouncer.crowdsecScheme,
+		Host:   bouncer.crowdsecHost,
+		Path:   bouncer.crowdsecPath + crowdsecLapiMetricsRoute,
+	}
+
+	_, err = crowdsecQuery(bouncer, metricsURL.String(), data)
+	if err != nil {
+		return fmt.Errorf("reportMetrics:query %w", err)
+	}
+
+	atomic.StoreInt64(&blockedRequests, 0)
+	lastMetricsPush = now
+	return nil
+}

bouncer_logging_test.go

@@ -0,0 +1,320 @@
+package crowdsec_bouncer_traefik_plugin //nolint:revive,stylecheck
+
+import (
+	"context"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/configuration"
+)
+
+// getTestConfig returns a minimal valid configuration for testing.
+// Override specific fields by modifying the returned config.
+func getTestConfig() *configuration.Config {
+	return &configuration.Config{
+		Enabled:                              true,
+		LogLevel:                             "INFO",
+		LogFormat:                            "common",
+		LogFilePath:                          "",
+		CrowdsecMode:                         "none",
+		CrowdsecLapiKey:                      "test-key",
+		CrowdsecLapiHost:                     "localhost",
+		CrowdsecLapiScheme:                   "http",
+		UpdateIntervalSeconds:                60,
+		DefaultDecisionSeconds:               60,
+		HTTPTimeoutSeconds:                   10,
+		ForwardedHeadersTrustedIPs:           []string{"127.0.0.1"},
+		ForwardedHeadersCustomName:           "",
+		RemediationStatusCode:                403,
+		BanHTMLFilePath:                      "",
+		RemediationHeadersCustomName:         "",
+		CaptchaProvider:                      "",
+		CaptchaSiteKey:                       "",
+		CaptchaSecretKey:                     "",
+		CaptchaGracePeriodSeconds:            1,
+		CaptchaHTMLFilePath:                  "",
+		RedisCacheEnabled:                    false,
+		RedisCacheHost:                       "",
+		RedisCachePassword:                   "",
+		RedisCacheDatabase:                   "",
+		RedisCacheUnreachableBlock:           false,
+		CrowdsecAppsecEnabled:                false,
+		CrowdsecAppsecHost:                   "",
+		CrowdsecAppsecPath:                   "",
+		CrowdsecAppsecFailureBlock:           false,
+		CrowdsecAppsecUnreachableBlock:       false,
+		CrowdsecLapiTLSInsecureVerify:        true,
+		CrowdsecLapiTLSCertificateBouncer:    "",
+		CrowdsecLapiTLSCertificateBouncerKey: "",
+		CrowdsecCapiMachineID:                "",
+		CrowdsecCapiPassword:                 "",
+		CrowdsecCapiScenarios:                []string{},
+		UpdateMaxFailure:                     0,
+		MetricsUpdateIntervalSeconds:         0,
+	}
+}
+
+// Helper function to create and execute a bouncer request for testing
+func createAndExecuteBouncerRequest(t *testing.T, config *configuration.Config) {
+	t.Helper()
+
+	// Create a mock next handler
+	nextHandler := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte("OK"))
+	})
+
+	// Create the bouncer plugin (this will initialize the logger with file output)
+	bouncerHandler, err := New(context.Background(), nextHandler, config, "test-bouncer")
+	if err != nil {
+		t.Fatalf("Failed to create bouncer: %v", err)
+	}
+
+	// Create a test request to trigger logging
+	req := httptest.NewRequest(http.MethodGet, "http://example.com/test", nil)
+	req.RemoteAddr = "192.168.1.100:12345" // Use a non-trusted IP to trigger logging
+	rw := httptest.NewRecorder()
+
+	// Process the request (this should generate log entries)
+	bouncerHandler.ServeHTTP(rw, req)
+
+	// Give a moment for log writes to complete
+	time.Sleep(100 * time.Millisecond)
+}
+
+// Helper function to parse log file and extract found levels
+func parseLogFileAndExtractLevels(t *testing.T, logFile string) map[string]bool {
+	t.Helper()
+
+	// Verify the log file was created and contains entries
+	if _, statErr := os.Stat(logFile); os.IsNotExist(statErr) {
+		t.Fatalf("Log file was not created: %s", logFile)
+	}
+
+	// Read the log file content
+	// #nosec G304 - logFile is a test-generated temporary file path
+	logContent, err := os.ReadFile(logFile)
+	if err != nil {
+		t.Fatalf("Failed to read log file: %v", err)
+	}
+
+	logString := string(logContent)
+	if len(logString) == 0 {
+		return make(map[string]bool) // Return empty map for empty log files
+	}
+
+	// Parse and verify JSON log entries
+	lines := strings.Split(strings.TrimSpace(logString), "\n")
+	foundLevels := make(map[string]bool)
+
+	for _, line := range lines {
+		if strings.TrimSpace(line) == "" {
+			continue
+		}
+
+		var logEntry map[string]interface{}
+		if err := json.Unmarshal([]byte(line), &logEntry); err != nil {
+			t.Errorf("Invalid JSON log entry: %s, error: %v", line, err)
+			continue
+		}
+
+		// Verify required fields
+		validateLogEntry(t, logEntry)
+
+		// Track log levels we've seen
+		if level, ok := logEntry["level"].(string); ok {
+			foundLevels[level] = true
+		}
+	}
+
+	return foundLevels
+}
+
+// Helper function to validate log entry structure
+func validateLogEntry(t *testing.T, logEntry map[string]interface{}) {
+	t.Helper()
+
+	if logEntry["time"] == nil {
+		t.Error("Log entry missing 'time' field")
+	}
+	if logEntry["level"] == nil {
+		t.Error("Log entry missing 'level' field")
+	}
+	if logEntry["msg"] == nil {
+		t.Error("Log entry missing 'msg' field")
+	}
+	if logEntry["component"] != "CrowdsecBouncerTraefikPlugin" {
+		t.Errorf("Expected component 'CrowdsecBouncerTraefikPlugin', got %v", logEntry["component"])
+	}
+}
+
+// Helper function to verify expected and forbidden log levels
+func verifyLogLevels(t *testing.T, foundLevels map[string]bool, expectedLevels, forbiddenLevels []string, logLevel string) {
+	t.Helper()
+
+	// Handle case where no logs are expected
+	if len(expectedLevels) == 0 {
+		if len(foundLevels) > 0 {
+			t.Errorf("Expected no logs at %s level, but found: %v", logLevel, foundLevels)
+		}
+	} else {
+		// Verify we got some log entries
+		if len(foundLevels) == 0 {
+			t.Fatal("No valid log entries found")
+		}
+
+		// Verify expected levels are present
+		for _, expectedLevel := range expectedLevels {
+			if !foundLevels[expectedLevel] {
+				t.Errorf("Expected to find %s level logs, but didn't. Found levels: %v", expectedLevel, foundLevels)
+			}
+		}
+	}
+
+	// Verify forbidden levels are NOT present
+	for _, forbiddenLevel := range forbiddenLevels {
+		if foundLevels[forbiddenLevel] {
+			t.Errorf("Found forbidden %s level logs at %s level. Found levels: %v", forbiddenLevel, logLevel, foundLevels)
+		}
+	}
+}
+
+func TestBouncerFileLoggingLevels(t *testing.T) {
+	tests := []struct {
+		name            string
+		logLevel        string
+		expectedLevels  []string // Levels that should appear
+		forbiddenLevels []string // Levels that should NOT appear
+	}{
+		{
+			name:            "DEBUG level should show DEBUG only",
+			logLevel:        "DEBUG",
+			expectedLevels:  []string{"DEBUG"},
+			forbiddenLevels: []string{},
+		},
+		{
+			name:            "INFO level should show no logs (bouncer doesn't generate INFO during normal operation)",
+			logLevel:        "INFO",
+			expectedLevels:  []string{}, // No logs expected for normal operation
+			forbiddenLevels: []string{"DEBUG"},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			// Create temporary directory for log file
+			tmpDir := t.TempDir()
+			logFile := filepath.Join(tmpDir, "bouncer.log")
+
+			// Get test config and override specific fields
+			config := getTestConfig()
+			config.LogLevel = tt.logLevel
+			config.LogFormat = "json" // Use JSON format for easier parsing
+			config.LogFilePath = logFile
+
+			// Create and execute bouncer request
+			createAndExecuteBouncerRequest(t, config)
+
+			// Parse log file and extract found levels
+			foundLevels := parseLogFileAndExtractLevels(t, logFile)
+
+			// Handle empty log files for higher log levels (expected behavior)
+			if len(foundLevels) == 0 && len(tt.expectedLevels) > 0 {
+				t.Fatalf("Expected log entries but log file is empty for level %s", tt.logLevel)
+			}
+			if len(foundLevels) == 0 {
+				// Empty file is expected for this log level
+				t.Logf("LogLevel %s: No logs generated (expected behavior)", tt.logLevel)
+				return
+			}
+
+			// Verify expected and forbidden log levels
+			verifyLogLevels(t, foundLevels, tt.expectedLevels, tt.forbiddenLevels, tt.logLevel)
+
+			t.Logf("LogLevel %s: Successfully logged to file with levels: %v", tt.logLevel, foundLevels)
+		})
+	}
+}
+
+func TestBouncerFileLoggingCommonFormat(t *testing.T) {
+	// Create temporary directory for log file
+	tmpDir := t.TempDir()
+	logFile := filepath.Join(tmpDir, "bouncer-common.log")
+
+	// Get test config and override specific fields
+	config := getTestConfig()
+	config.LogLevel = "DEBUG"
+	config.LogFormat = "common" // Use common format
+	config.LogFilePath = logFile
+
+	// Create a mock next handler
+	nextHandler := http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte("OK"))
+	})
+
+	// Create the bouncer plugin
+	bouncerHandler, err := New(context.Background(), nextHandler, config, "test-bouncer")
+	if err != nil {
+		t.Fatalf("Failed to create bouncer: %v", err)
+	}
+
+	// Create a test request to trigger logging
+	req := httptest.NewRequest(http.MethodGet, "http://example.com/test", nil)
+	req.RemoteAddr = "192.168.1.100:12345"
+	rw := httptest.NewRecorder()
+
+	// Process the request
+	bouncerHandler.ServeHTTP(rw, req)
+
+	// Give a moment for log writes to complete
+	time.Sleep(100 * time.Millisecond)
+
+	// Verify the log file was created and contains entries
+	if _, statErr := os.Stat(logFile); os.IsNotExist(statErr) {
+		t.Fatalf("Log file was not created: %s", logFile)
+	}
+
+	// Read the log file content
+	// #nosec G304 - logFile is a test-generated temporary file path
+	logContent, err := os.ReadFile(logFile)
+	if err != nil {
+		t.Fatalf("Failed to read log file: %v", err)
+	}
+
+	logString := string(logContent)
+	if len(logString) == 0 {
+		t.Fatal("Log file is empty")
+	}
+
+	// Verify common format structure
+	lines := strings.Split(strings.TrimSpace(logString), "\n")
+	foundDebug := false
+
+	for _, line := range lines {
+		if strings.TrimSpace(line) == "" {
+			continue
+		}
+
+		// Common format should contain time, level, msg, and component
+		if strings.Contains(line, "level=DEBUG") {
+			foundDebug = true
+		}
+		if !strings.Contains(line, "component=CrowdsecBouncerTraefikPlugin") {
+			t.Errorf("Log line missing component field: %s", line)
+		}
+	}
+
+	// We should see DEBUG level logs since we set LogLevel to DEBUG
+	if !foundDebug {
+		t.Errorf("Expected to find DEBUG level logs in common format. Log content:\n%s", logString)
+	}
+
+	t.Logf("Successfully logged to file %s in common format with %d lines", logFile, len(lines))
+}

bouncer_test.go

@@ -2,6 +2,7 @@ package crowdsec_bouncer_traefik_plugin //nolint:revive,stylecheck
 
 import (
 	"context"
+	htmltemplate "html/template"
 	"net/http"
 	"net/http/httptest"
 	"reflect"
@@ -163,7 +164,7 @@ func Test_crowdsecQuery(t *testing.T) {
 	type args struct {
 		bouncer   *Bouncer
 		stringURL string
-		isPost    bool
+		data      []byte
 	}
 	tests := []struct {
 		name    string
@@ -175,7 +176,7 @@ func Test_crowdsecQuery(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			got, err := crowdsecQuery(tt.args.bouncer, tt.args.stringURL, tt.args.isPost)
+			got, err := crowdsecQuery(tt.args.bouncer, tt.args.stringURL, tt.args.data)
 			if (err != nil) != tt.wantErr {
 				t.Errorf("crowdsecQuery() error = %v, wantErr %v", err, tt.wantErr)
 				return
@@ -186,3 +187,148 @@ func Test_crowdsecQuery(t *testing.T) {
 		})
 	}
 }
+
+func TestHandleBanServeHTTPWithDifferentMethods(t *testing.T) {
+	html := "<html>You are banned</html>"
+	banTemplate, _ := htmltemplate.New("html").Parse(html)
+	tests := []struct {
+		name              string
+		method            string
+		banTemplate       *htmltemplate.Template
+		expectBodyContent bool
+	}{
+		{
+			name:              "GET request should have body with template",
+			method:            http.MethodGet,
+			banTemplate:       banTemplate,
+			expectBodyContent: true,
+		},
+		{
+			name:              "HEAD request should NOT have body even with template",
+			method:            http.MethodHead,
+			banTemplate:       banTemplate,
+			expectBodyContent: false,
+		},
+		{
+			name:              "POST request should have body with template",
+			method:            http.MethodPost,
+			banTemplate:       banTemplate,
+			expectBodyContent: true,
+		},
+		{
+			name:              "PUT request should have body with template",
+			method:            http.MethodPut,
+			banTemplate:       banTemplate,
+			expectBodyContent: true,
+		},
+		{
+			name:              "DELETE request should have body with template",
+			method:            http.MethodDelete,
+			banTemplate:       banTemplate,
+			expectBodyContent: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			bouncer := &Bouncer{
+				remediationStatusCode:   http.StatusForbidden,
+				remediationCustomHeader: "X-Test-Remediation",
+				banTemplate:             tt.banTemplate,
+			}
+
+			rw := httptest.NewRecorder()
+			req := &http.Request{Method: tt.method}
+			bouncer.handleBanServeHTTP(rw, req, "0.0.0.0", "TEST")
+
+			// Check status code
+			if rw.Code != http.StatusForbidden {
+				t.Errorf("Expected status code 403, got %d", rw.Code)
+			}
+
+			// Check custom header
+			headerValue := rw.Header().Get("X-Test-Remediation")
+			if headerValue != "ban" {
+				t.Errorf("Expected header X-Test-Remediation to be 'ban', got %s", headerValue)
+			}
+
+			// Check body content
+			body := rw.Body.String()
+			hasBodyContent := len(body) > 0
+
+			if hasBodyContent != tt.expectBodyContent {
+				t.Errorf("Method %s: expected body content: %v, got body content: %v (body: %q)",
+					tt.method, tt.expectBodyContent, hasBodyContent, body)
+			}
+
+			// If we expect body content, verify it matches template
+			if tt.expectBodyContent && body != html {
+				t.Errorf("Expected body %q, got %q", html, body)
+			}
+		})
+	}
+}
+
+func TestCaptchaMethodBasedLogic(t *testing.T) {
+	tests := []struct {
+		name              string
+		method            string
+		remediation       string
+		expectBanFallback bool
+	}{
+		{
+			name:              "GET with captcha remediation should allow captcha",
+			method:            http.MethodGet,
+			remediation:       cache.CaptchaValue,
+			expectBanFallback: false,
+		},
+		{
+			name:              "HEAD with captcha remediation should fallback to ban",
+			method:            http.MethodHead,
+			remediation:       cache.CaptchaValue,
+			expectBanFallback: true,
+		},
+		{
+			name:              "POST with captcha remediation should allow captcha",
+			method:            http.MethodPost,
+			remediation:       cache.CaptchaValue,
+			expectBanFallback: false,
+		},
+		{
+			name:              "PUT with captcha remediation should allow captcha",
+			method:            http.MethodPut,
+			remediation:       cache.CaptchaValue,
+			expectBanFallback: false,
+		},
+		{
+			name:              "DELETE with captcha remediation should allow captcha",
+			method:            http.MethodDelete,
+			remediation:       cache.CaptchaValue,
+			expectBanFallback: false,
+		},
+		{
+			name:              "PATCH with captcha remediation should allow captcha",
+			method:            http.MethodPatch,
+			remediation:       cache.CaptchaValue,
+			expectBanFallback: false,
+		},
+		{
+			name:              "OPTIONS with captcha remediation should allow captcha",
+			method:            http.MethodOptions,
+			remediation:       cache.CaptchaValue,
+			expectBanFallback: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			// Test the core logic: captcha is served for all methods except HEAD
+			shouldUseCaptcha := tt.remediation == cache.CaptchaValue && tt.method != http.MethodHead
+
+			if shouldUseCaptcha == tt.expectBanFallback {
+				t.Errorf("Method %s with %s remediation: expected ban fallback %v, but logic would use captcha %v",
+					tt.method, tt.remediation, tt.expectBanFallback, shouldUseCaptcha)
+			}
+		})
+	}
+}

docker-compose.local.yml

@@ -1,6 +1,6 @@
 services:
   traefik:
-    image: "traefik:v3.0.0"
+    image: "traefik:v3.5.0"
     container_name: "traefik"
     restart: unless-stopped
     command:
@@ -16,8 +16,8 @@ services:
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
       - logs-local:/var/log/traefik
-      - './ban.html:/ban.html:ro'
-      - './captcha.html:/captcha.html:ro'
+      - "./ban.html:/ban.html:ro"
+      - "./captcha.html:/captcha.html:ro"
       - ./:/plugins-local/src/github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin
     ports:
       - 8000:80
@@ -36,7 +36,7 @@ services:
       - "traefik.http.routers.router-foo.middlewares=crowdsec@docker"
       - "traefik.http.services.service-foo.loadbalancer.server.port=80"
 
-  whoami2:
+  bar:
     image: traefik/whoami
     container_name: "simple-service-bar"
     restart: unless-stopped
@@ -48,12 +48,39 @@ services:
       - "traefik.http.services.service-bar.loadbalancer.server.port=80"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.enabled=true"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.loglevel=DEBUG"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.metricsupdateintervalseconds=15"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecappsecenabled=true"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecmode=stream"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdseclapikey=40796d93c2958f9e58345514e67740e5="
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.ForwardedHeadersTrustedIPs=172.21.0.1/8"
 
+  bar2:
+    image: traefik/whoami
+    container_name: "simple-service-bar2"
+    restart: unless-stopped
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.router-bar2.rule=PathPrefix(`/bar2`)"
+      - "traefik.http.routers.router-bar2.entrypoints=web"
+      - "traefik.http.routers.router-bar2.middlewares=crowdsec2@docker"
+      - "traefik.http.services.service-bar2.loadbalancer.server.port=80"
+      - "traefik.http.middlewares.crowdsec2.plugin.bouncer.enabled=true"
+      - "traefik.http.middlewares.crowdsec2.plugin.bouncer.loglevel=DEBUG"
+      - "traefik.http.middlewares.crowdsec2.plugin.bouncer.crowdsecmode=stream"
+      - "traefik.http.middlewares.crowdsec2.plugin.bouncer.updateintervalseconds=10"
+      - "traefik.http.middlewares.crowdsec2.plugin.bouncer.updatemaxfailure=-1"
+      - "traefik.http.middlewares.crowdsec2.plugin.bouncer.crowdseclapikey=40796d93c2958f9e58345514e67740e5="
+  bar3:
+    image: traefik/whoami
+    container_name: "simple-service-bar3"
+    restart: unless-stopped
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.router-bar3.rule=PathPrefix(`/bar3`)"
+      - "traefik.http.routers.router-bar3.entrypoints=web"
+      - "traefik.http.routers.router-bar3.middlewares=crowdsec2@docker"
   crowdsec:
-    image: crowdsecurity/crowdsec:v1.6.1-2
+    image: crowdsecurity/crowdsec:v1.6.8
     container_name: "crowdsec"
     restart: unless-stopped
     environment:
@@ -67,7 +94,6 @@ services:
       - crowdsec-config-local:/etc/crowdsec/
     labels:
       - "traefik.enable=false"
-
 volumes:
   logs-local:
   crowdsec-db-local:

docker-compose.yml

@@ -59,7 +59,7 @@ services:
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.forwardedheaderstrustedips=172.21.0.5"
 
   crowdsec:
-    image: crowdsecurity/crowdsec:v1.6.1-2
+    image: crowdsecurity/crowdsec:v1.6.8
     container_name: "crowdsec"
     restart: unless-stopped
     environment:

examples/appsec-enabled/docker-compose.yml

@@ -1,8 +1,6 @@
-version: "3.8"
-
 services:
   traefik:
-    image: "traefik:v3.0.0"
+    image: "traefik:v3.5.0"
     container_name: "traefik"
     restart: unless-stopped
     command:
@@ -15,7 +13,7 @@ services:
       - "--entrypoints.web.address=:80"
 
       - "--experimental.plugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
-      - "--experimental.plugins.bouncer.version=v1.3.0"
+      - "--experimental.plugins.bouncer.version=v1.5.0"
       # - "--experimental.localplugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
@@ -48,8 +46,6 @@ services:
       # Define AppSec host and port informations
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecappsechost=crowdsec:7422"
 
-  
-
   crowdsec:
     image: crowdsecurity/crowdsec:v1.6.1-2
     container_name: "crowdsec"

examples/captcha/README.md

@@ -20,7 +20,7 @@ For now 3 captcha providers are supported:
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaSiteKey=FIXME"
       # Define captcha secret key
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaSecretKey=FIXME"
-      # Define captcha grade period seconds
+      # Define captcha grace period seconds
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaGracePeriodSeconds=1800"
       # Define captcha HTML file path
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaHTMLFilePath=/captcha.html"
@@ -47,7 +47,7 @@ To instruct Crowdsec to use captcha remediation, change the `/etc/crowdsec/profi
 - Return a captcha decision the first X times and then a ban decision.
 
 The second mode could be used to prevent repeated malicious activity.
-More information is available on configuring Crowdsec in the [official documentation](https://docs.crowdsec.net/docs/next/profiles/captcha_profile/).
+More information is available on configuring Crowdsec in the [official documentation](https://docs.crowdsec.net/docs/next/local_api/profiles/captcha_profile/).
 
 ```yaml
   ...

examples/captcha/captcha.html

@@ -293,7 +293,7 @@
         </svg>
         <h1 class="text-2xl lg:text-3xl xl:text-4xl">CrowdSec Captcha</h1>
       </div>
-      <form action="" method="POST" class="flex flex-col space-y-1" id="captcha-form">
+      <form action="" method="POST" class="flex flex-col items-center space-y-1" id="captcha-form">
         <div id="captcha" class="{{ .FrontendKey }}" data-sitekey="{{ .SiteKey }}" data-callback="captchaCallback">
         </div>
       </form>

examples/custom-ban-page/README.md

@@ -45,3 +45,15 @@ To play the demo environment run:
 ```bash
 make run_custom_ban_page
 ```
+
+## Another thing to note
+In the html of the ban page, you can use:  
+- {{ .ClientIP }} to display the IP used to ban the request.  
+- {{ .RemediationReason }} that convert on runtime into why the ban page is served. It's an enum with "APPSEC", "LAPI", "TECHNICAL_ISSUE" and it is useful to help user understand why the request is blocked.  
+- {{ .CustomHeader }} value of the specified Request Header (for example X-Request-ID)
+```
+<script>var remediation = "{{ .RemediationReason }}"</script>
+<script>var clientIp = "{{ .ClientIP }}"</script>
+<script>var traceID = "{{ .TraceID }}"</script>
+```
+With the above tweak and some other js, you can customize your ban page on runtime.

examples/custom-captcha/README.md

@@ -0,0 +1,79 @@
+# Example
+
+Read the example captcha before this, to better understand what is done here.
+
+### Traefik configuration
+
+The minimal configuration is defined below to implement custom captcha.  
+This documentation use https://github.com/a-ve/wicketkeeper, a self-hosted captcha provider that have a similar API than big providers.
+
+Minimal API requirement:
+
+- the JS file URL to load the captcha on the served `captcha.html`
+- the HTML className to tell to the JS where to display the challenge
+- the verify URL endpoint to send the field `response` from the captcha with `content-type: application/x-www-form-urlencoded`
+- the name of the field when you POST the resolved captcha to Traefik
+
+- the JS file need to respect the `data-callback` on the div that contains the captcha if you use our template, but you can customize it by your side
+
+```yaml
+  traefik:
+    ...
+    labels:
+      # Choose captcha provider
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaProvider=custom"
+      # Define captcha grace period seconds
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaGracePeriodSeconds=1800"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaCustomJsURL=http://captcha.localhost:8000/fast.js"
+      # Inside Traefik container the plugin must be able to reach wicketkeeper service so we can go through a Traefik localhost
+      # domain which would resolve traefik itself and the port for the dashboard
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.CaptchaCustomValidateURL=http://wicketkeeper:8080/v0/siteverify"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.CaptchaCustomKey=wicketkeeper"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.CaptchaCustomResponse=wicketkeeper_solution"
+      # Define captcha HTML file path
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaHTMLFilePath=/captcha.html"
+```
+
+```yaml
+wicketkeeper:
+  image: ghcr.io/a-ve/wicketkeeper:latest
+  user: root
+  ports:
+    - "8080:8080"
+  environment:
+    - LISTEN_PORT=8080
+    - REDIS_ADDR=redis:6379
+    - DIFFICULTY=4
+    - ALLOWED_ORIGINS=*
+    - PRIVATE_KEY_PATH=/data/wicketkeeper.key
+  volumes:
+    - ./data:/data
+  depends_on:
+    - redis
+redis:
+  image: redis/redis-stack-server:latest
+```
+
+```html
+<div id="captcha" class="{{ .FrontendKey }}" data-sitekey="{{ .SiteKey }}" data-callback="captchaCallback" data-challenge-url="http://captcha.localhost:8000/v0/challenge">
+```
+
+## Exemple navigation
+
+We can try to query normally the whoami server:
+
+```bash
+curl http://localhost:8000/foo
+```
+
+We can try to ban ourself and retry.
+
+```bash
+docker exec crowdsec cscli decisions add --ip 10.0.0.20 -d 10m --type captcha
+```
+
+To play the demo environment run:
+
+```bash
+make run_custom_captcha
+```

examples/custom-captcha/acquis.yaml

@@ -0,0 +1,4 @@
+filenames:
+ - /var/log/traefik/access.log
+labels:
+  type: traefik

examples/custom-captcha/captcha.html

@@ -0,0 +1,338 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <title>CrowdSec Captcha</title>
+  <meta content="text/html; charset=utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <style>
+    /*! tailwindcss v3.2.7 | MIT License | https://tailwindcss.com*/
+    *,
+    :after,
+    :before {
+      border: 0 solid #e5e7eb;
+      box-sizing: border-box
+    }
+
+    :after,
+    :before {
+      --tw-content: ""
+    }
+
+    html {
+      -webkit-text-size-adjust: 100%;
+      font-feature-settings: normal;
+      font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Helvetica Neue, Arial, Noto Sans, sans-serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol, Noto Color Emoji;
+      line-height: 1.5;
+      -moz-tab-size: 4;
+      -o-tab-size: 4;
+      tab-size: 4
+    }
+
+    body {
+      line-height: inherit;
+      margin: 0
+    }
+
+    h1,
+    h2,
+    h3,
+    h4,
+    h5,
+    h6 {
+      font-size: inherit;
+      font-weight: inherit
+    }
+
+    a {
+      color: inherit;
+      text-decoration: inherit
+    }
+
+    h1,
+    h2,
+    h3,
+    h4,
+    h5,
+    h6,
+    hr,
+    p,
+    pre {
+      margin: 0
+    }
+
+    *,
+    ::backdrop,
+    :after,
+    :before {
+      --tw-border-spacing-x: 0;
+      --tw-border-spacing-y: 0;
+      --tw-translate-x: 0;
+      --tw-translate-y: 0;
+      --tw-rotate: 0;
+      --tw-skew-x: 0;
+      --tw-skew-y: 0;
+      --tw-scale-x: 1;
+      --tw-scale-y: 1;
+      --tw-pan-x: ;
+      --tw-pan-y: ;
+      --tw-pinch-zoom: ;
+      --tw-scroll-snap-strictness: proximity;
+      --tw-ordinal: ;
+      --tw-slashed-zero: ;
+      --tw-numeric-figure: ;
+      --tw-numeric-spacing: ;
+      --tw-numeric-fraction: ;
+      --tw-ring-inset: ;
+      --tw-ring-offset-width: 0px;
+      --tw-ring-offset-color: #fff;
+      --tw-ring-color: #3b82f680;
+      --tw-ring-offset-shadow: 0 0 #0000;
+      --tw-ring-shadow: 0 0 #0000;
+      --tw-shadow: 0 0 #0000;
+      --tw-shadow-colored: 0 0 #0000;
+      --tw-blur: ;
+      --tw-brightness: ;
+      --tw-contrast: ;
+      --tw-grayscale: ;
+      --tw-hue-rotate: ;
+      --tw-invert: ;
+      --tw-saturate: ;
+      --tw-sepia: ;
+      --tw-drop-shadow: ;
+      --tw-backdrop-blur: ;
+      --tw-backdrop-brightness: ;
+      --tw-backdrop-contrast: ;
+      --tw-backdrop-grayscale: ;
+      --tw-backdrop-hue-rotate: ;
+      --tw-backdrop-invert: ;
+      --tw-backdrop-opacity: ;
+      --tw-backdrop-saturate: ;
+      --tw-backdrop-sepia:
+    }
+
+    .flex {
+      display: flex
+    }
+    .flex-wrap {
+      flex-wrap: wrap
+    }
+
+    .inline-flex {
+      display: inline-flex
+    }
+
+    .h-24 {
+      height: 6rem
+    }
+
+    .h-6 {
+      height: 1.5rem
+    }
+
+    .h-full {
+      height: 100%
+    }
+
+    .h-screen {
+      height: 100vh
+    }
+
+    .text-center {
+      text-align: center
+    }
+
+    .w-24 {
+      width: 6rem
+    }
+
+    .w-6 {
+      width: 1.5rem
+    }
+
+    .w-full {
+      width: 100%
+    }
+
+    .w-screen {
+      width: 100vw
+    }
+
+    .my-3 {
+      margin-top: 0.75rem;
+      margin-bottom: 0.75rem
+    }
+
+    .flex-col {
+      flex-direction: column
+    }
+
+    .items-center {
+      align-items: center
+    }
+
+    .justify-center {
+      justify-content: center
+    }
+
+    .justify-between {
+      justify-content: space-between
+    }
+
+    .space-y-1>:not([hidden])~:not([hidden]) {
+      --tw-space-y-reverse: 0;
+      margin-bottom: calc(.25rem*var(--tw-space-y-reverse));
+      margin-top: calc(.25rem*(1 - var(--tw-space-y-reverse)))
+    }
+
+    .space-y-4>:not([hidden])~:not([hidden]) {
+      --tw-space-y-reverse: 0;
+      margin-bottom: calc(1rem*var(--tw-space-y-reverse));
+      margin-top: calc(1rem*(1 - var(--tw-space-y-reverse)))
+    }
+
+    .rounded-xl {
+      border-radius: .75rem
+    }
+
+    .border-2 {
+      border-width: 2px
+    }
+
+    .border-black {
+      --tw-border-opacity: 1;
+      border-color: rgb(0 0 0/var(--tw-border-opacity))
+    }
+
+    .p-4 {
+      padding: 1rem
+    }
+
+    .px-4 {
+      padding-left: 1rem;
+      padding-right: 1rem
+    }
+
+    .py-2 {
+      padding-bottom: .5rem;
+      padding-top: .5rem
+    }
+
+    .text-2xl {
+      font-size: 1.5rem;
+      line-height: 2rem
+    }
+
+    .text-sm {
+      font-size: .875rem;
+      line-height: 1.25rem
+    }
+
+    .text-xl {
+      font-size: 1.25rem;
+      line-height: 1.75rem
+    }
+
+    .font-bold {
+      font-weight: 700
+    }
+
+    .text-white {
+      --tw-text-opacity: 1;
+      color: rgb(255 255 255/var(--tw-text-opacity))
+    }
+
+    @media (min-width:640px) {
+      .sm\:w-2\/3 {
+        width: 66.666667%
+      }
+    }
+
+    @media (min-width:768px) {
+      .md\:flex-row {
+        flex-direction: row
+      }
+    }
+
+    @media (min-width:1024px) {
+      .lg\:w-1\/2 {
+        width: 50%
+      }
+
+      .lg\:text-3xl {
+        font-size: 1.875rem;
+        line-height: 2.25rem
+      }
+
+      .lg\:text-xl {
+        font-size: 1.25rem;
+        line-height: 1.75rem
+      }
+    }
+
+    @media (min-width:1280px) {
+      .xl\:text-4xl {
+        font-size: 2.25rem;
+        line-height: 2.5rem
+      }
+    }
+  </style>
+  <script src="{{ .FrontendJS }}" async defer></script>
+</head>
+
+<body class="h-screen w-screen p-4">
+  <div class="h-full w-full flex flex-col justify-center items-center">
+    <div class="border-2 border-black rounded-xl p-4 text-center w-full sm:w-2/3 lg:w-1/2">
+      <div class="flex flex-col items-center space-y-4">
+        <svg fill="black" class="h-24 w-24" aria-hidden="true" focusable="false" data-prefix="fas"
+          data-icon="exclamation-triangle" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 576 512"
+          class="warning">
+          <path
+            d="M569.517 440.013C587.975 472.007 564.806 512 527.94 512H48.054c-36.937 0-59.999-40.055-41.577-71.987L246.423 23.985c18.467-32.009 64.72-31.951 83.154 0l239.94 416.028zM288 354c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z">
+          </path>
+        </svg>
+        <h1 class="text-2xl lg:text-3xl xl:text-4xl">CrowdSec Captcha</h1>
+      </div>
+      <form action="" method="POST" class="flex flex-col items-center space-y-1" id="captcha-form">
+        <div id="captcha" class="{{ .FrontendKey }}" data-sitekey="{{ .SiteKey }}" data-callback="captchaCallback" data-challenge-url="http://captcha.localhost:8000/v0/challenge">
+        </div>
+      </form>
+      <div class="flex justify-center flex-wrap">
+        <p class="my-3">This security check has been powered by</p>
+        <a href="https://crowdsec.net/" target="_blank" rel="noopener" class="inline-flex flex-col items-center">
+          <svg fill="black" width="33.92" height="33.76" viewBox="0 0 254.4 253.2">
+            <defs>
+              <clipPath id="a">
+                <path d="M0 52h84v201.2H0zm0 0" />
+              </clipPath>
+              <clipPath id="b">
+                <path d="M170 52h84.4v201.2H170zm0 0" />
+              </clipPath>
+            </defs>
+            <path
+              d="M59.3 128.4c1.4 2.3 2.5 4.6 3.4 7-1-4.1-2.3-8.1-4.3-12-3.1-6-7.8-5.8-10.7 0-2 4-3.2 8-4.3 12.1 1-2.4 2-4.8 3.4-7.1 3.4-5.8 8.8-6 12.5 0M207.8 128.4a42.9 42.9 0 013.4 7c-1-4.1-2.3-8.1-4.3-12-3.2-6-7.8-5.8-10.7 0-2 4-3.3 8-4.3 12.1.9-2.4 2-4.8 3.4-7.1 3.4-5.8 8.8-6 12.5 0M134.6 92.9c2 3.5 3.6 7 4.8 10.7-1.3-5.4-3-10.6-5.6-15.7-4-7.5-9.7-7.2-13.3 0a75.4 75.4 0 00-5.6 16c1.2-3.8 2.7-7.4 4.7-11 4.1-7.2 10.6-7.5 15 0M43.8 136.8c.9 4.6 3.7 8.3 7.3 9.2 0 2.7 0 5.5.2 8.2.3 3.3.4 6.6 1 9.6.3 2.3 1 2.2 1.3 0 .5-3 .6-6.3 1-9.6l.2-8.2c3.5-1 6.4-4.6 7.2-9.2a17.8 17.8 0 01-9 2.4c-3.5 0-6.6-1-9.2-2.4M192.4 136.8c.8 4.6 3.7 8.3 7.2 9.2 0 2.7 0 5.5.3 8.2.3 3.3.4 6.6 1 9.6.3 2.3.9 2.2 1.2 0 .6-3 .7-6.3 1-9.6.2-2.7.3-5.5.2-8.2 3.6-1 6.4-4.6 7.3-9.2a17.8 17.8 0 01-9.1 2.4c-3.4 0-6.6-1-9.1-2.4M138.3 104.6c-3.1 1.9-7 3-11.3 3-4.3 0-8.2-1.1-11.3-3 1 5.8 4.5 10.3 9 11.5 0 3.4 0 6.8.3 10.2.4 4.1.5 8.2 1.2 12 .4 2.9 1.2 2.7 1.6 0 .7-3.8.8-7.9 1.2-12 .3-3.4.3-6.8.3-10.2 4.5-1.2 8-5.7 9-11.5" />
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+            <g clip-path="url(#a)">
+              <path
+                d="M83.5 136.6l-2.3.7c-5 1-9.8 1-14.8-.2-1.4-.3-2.7-1-3.8-1.9l3.1 13.7c1 4 1.7 8 2 12 .5 6.3-3.6 11.6-8.7 11.6H46.9c-5.1 0-9.2-5.3-8.7-11.6.3-4 1-8 2-12 1-4.2 1.8-8.5 2.9-12.6-1.8 1-3.9 1.5-6.3 1.6a71 71 0 01-11.1-.7 7.7 7.7 0 01-6.5-5.5c-1-2.7-1.6-5.6-2.6-8.3-.4-1.2-1.3-2.3-2-3.4-.2-.4-.6-1-.6-1.4v-6.3c6.4-2 13-2.6 19.6-2.5 4.9.1 9.6 1 14.2 2.6 3.9 1.4 7.9 1.5 11.7 0 1.8-.7 3.6-1.2 5.5-1.6a13 13 0 01-1.6-15.5A18.3 18.3 0 0159 73.1a11.5 11.5 0 00-17.4 8.1 7.2 7.2 0 00-12.9 3.3c-2.7-9-2.8-17-3.6-27.5-.2-3.4-4-6.5-8-1.4C7.5 67.8 7.9 86.9 10.6 91c1.1 1.7 2.8 3.1 4.7 4a7.2 7.2 0 00-5.6 11.7 11.5 11.5 0 00-2.9 21.9 7.2 7.2 0 004.5 13.2h.3c0 .6 0 1.1.2 1.7.9 5.4 5.6 9.5 11.3 9.5A1177.2 1177.2 0 0010 253.2c18.1-1.5 38.1-2.6 59.5-3.4.4-4.6.8-9.3 1.4-14 1.2-11.6 3.3-30.5 5.7-49.7 2.2-18 4.7-36.3 7-49.5" />
+            </g>
+            <g clip-path="url(#b)">
+              <path
+                d="M254.4 118.2c0-5.8-4.2-10.5-9.7-11.4a7.2 7.2 0 00-5.6-11.7c2-.9 3.6-2.3 4.7-4 2.7-4.2 3.1-23.3-6.5-35.5-4-5.1-7.8-2-8 1.4-.8 10.5-.9 18.5-3.6 27.5a7.2 7.2 0 00-12.8-3.3 11.5 11.5 0 00-17.8-7.9 18.4 18.4 0 01-4.5 22 13 13 0 01-1.3 15.2c2.4.5 4.8 1 7.1 2 3.8 1.3 7.8 1.4 11.6 0 7.2-2.8 14.6-3 22-2.4 4 .4 7.9 1.2 12 1.9l-.1 6.6c0 .5-.2 1.2-.5 1.3-1.7.7-1.8 2.2-2.2 3.7l-2.3 7.6a8.8 8.8 0 01-7 6.1c-5 1-10 1-14.9-.2-1.5-.3-2.8-1-3.9-1.9 1.2 4.5 2 9.1 3.2 13.7 1 4 1.6 8 2 12 .4 6.3-3.6 11.6-8.8 11.6h-12c-5.2 0-9.3-5.3-8.8-11.6.4-4 1-8 2-12 1-4.2 1.9-8.5 3-12.6-1.8 1-4 1.5-6.3 1.6-3.7 0-7.5-.3-11.2-.7a7.7 7.7 0 01-3.7-1.5c3.1 18.4 7.1 51.2 12.5 100.9l.6 5.3.8 7.9c21.4.7 41.5 1.9 59.7 3.4L243 243l-4.4-41.2a606 606 0 00-7-48.7 11.5 11.5 0 0011.2-11.2h.4a7.2 7.2 0 004.4-13.2c4-1.8 6.8-5.8 6.8-10.5" />
+            </g>
+            <path
+              d="M180 249.6h.4a6946 6946 0 00-7.1-63.9l5.4 51.3 1.4 12.6M164.4 125c2.5 10.7 5.7 33.9 8.9 60.7a570.9 570.9 0 00-8.9-60.7M74.8 236.3l-1.4 13.4 1.4-13.4" />
+          </svg>
+          <span>CrowdSec</span>
+        </a>
+      </div>
+    </div>
+  </div>
+  <script>
+    function captchaCallback() {
+      setTimeout(() => document.querySelector('#captcha-form').submit(), 500);
+    }
+  </script>
+</body>
+</html>

examples/custom-captcha/docker-compose.yml

@@ -0,0 +1,110 @@
+services:
+  traefik:
+    image: "traefik:v3.5.0"
+    container_name: "traefik"
+    restart: unless-stopped
+    command:
+      # - "--log.level=DEBUG"
+      - "--accesslog"
+      - "--accesslog.filepath=/var/log/traefik/access.log"
+      - "--api.insecure=true"
+      - "--providers.docker=true"
+      - "--providers.docker.exposedbydefault=false"
+      - "--entrypoints.web.address=:80"
+      - "--entrypoints.web.forwardedheaders.trustedips=172.18.0.0/24"
+
+      - "--experimental.plugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
+      - "--experimental.plugins.bouncer.version=v1.4.5"
+      # - "--experimental.localplugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock:ro
+      - logs-custom-captcha-enabled:/var/log/traefik
+      - "./captcha.html:/captcha.html"
+      # - ./../../:/plugins-local/src/github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin
+    ports:
+      - 8000:80
+      - 8080:8080
+    depends_on:
+      - crowdsec
+
+  whoami-foo:
+    image: traefik/whoami
+    container_name: "simple-service-custom-captcha-foo"
+    restart: unless-stopped
+    labels:
+      - "traefik.enable=true"
+      # Definition of the router
+      - "traefik.http.routers.router-foo.rule=PathPrefix(`/foo`)"
+      - "traefik.http.routers.router-foo.entrypoints=web"
+      - "traefik.http.routers.router-foo.middlewares=crowdsec@docker"
+      # Definition of the service
+      - "traefik.http.services.service-foo.loadbalancer.server.port=80"
+      # Definition of the middleware
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.loglevel=DEBUG"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.enabled=true"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecmode=none"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdseclapikey=40796d93c2958f9e58345514e67740e5"
+
+      # Choose captcha provider
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaProvider=custom"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaCustomJsURL=http://captcha.localhost:8000/fast.js"
+      # Inside Traefik container the plugin must be able to reach wicketkeeper service so we can go through a Traefik localhost
+      # domain which would resolve traefik itself and the port for the dashboard
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.CaptchaCustomValidateURL=http://wicketkeeper:8080/v0/siteverify"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.CaptchaCustomKey=wicketkeeper"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.CaptchaCustomResponse=wicketkeeper_solution"
+      # Define captcha grade period seconds
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaGracePeriodSeconds=20"
+      # Define captcha HTML file path
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaHTMLFilePath=/captcha.html"
+
+  crowdsec:
+    image: crowdsecurity/crowdsec:v1.6.1-2
+    container_name: "crowdsec"
+    restart: unless-stopped
+    environment:
+      COLLECTIONS: crowdsecurity/traefik
+      CUSTOM_HOSTNAME: crowdsec
+      BOUNCER_KEY_TRAEFIK_DEV: 40796d93c2958f9e58345514e67740e5
+    volumes:
+      # For captcha and ban mixed decision
+      - "./profiles.yaml:/etc/crowdsec/profiles.yaml:ro"
+      # For captcha only remediation
+      # - './profiles_captcha_only.yaml:/etc/crowdsec/profiles.yaml:ro'
+      - "./acquis.yaml:/etc/crowdsec/acquis.yaml:ro"
+      - logs-custom-captcha-enabled:/var/log/traefik:ro
+      - crowdsec-db-custom-captcha-enabled:/var/lib/crowdsec/data/
+      - crowdsec-config-custom-captcha-enabled:/etc/crowdsec/
+    labels:
+      - "traefik.enable=false"
+
+  wicketkeeper:
+    image: ghcr.io/a-ve/wicketkeeper:latest
+    container_name: "wicketkeeper"
+    environment:
+      - LISTEN_PORT=8080
+      - REDIS_ADDR=redis:6379
+      - DIFFICULTY=4
+      - ALLOWED_ORIGINS=*
+      - PRIVATE_KEY_PATH=/data/wicketkeeper.key # To override in production environment
+    volumes:
+      - wicketkeeper-custom-captcha-enabled:/data
+    user: root
+    labels:
+      - "traefik.enable=true"
+      # Definition of the router
+      - "traefik.http.routers.router-wicketkeeper.rule=Host(`captcha.localhost`)"
+      - "traefik.http.routers.router-wicketkeeper.entrypoints=web"
+      # Definition of the service
+      - "traefik.http.services.service-wicketkeeper.loadbalancer.server.port=8080"
+    depends_on:
+      - redis
+
+  redis:
+    image: redis/redis-stack-server:latest
+
+volumes:
+  logs-custom-captcha-enabled:
+  wicketkeeper-custom-captcha-enabled:
+  crowdsec-db-custom-captcha-enabled:
+  crowdsec-config-custom-captcha-enabled:

examples/custom-captcha/profiles.yaml

@@ -0,0 +1,17 @@
+name: captcha_remediation
+filters:
+  - Alert.Remediation == true && Alert.GetScope() == "Ip" && Alert.GetScenario() contains "http" && GetDecisionsSinceCount(Alert.GetValue(), "24h") <= 3
+## Same as above but only 3 captcha decision per 24 hours before ban
+decisions:
+ - type: captcha
+   duration: 4h
+on_success: break
+---
+name: default_ip_remediation
+filters:
+ - Alert.Remediation == true && Alert.GetScope() == "Ip"
+decisions:
+ - type: ban
+   duration: 4h
+#duration_expr: "Sprintf('%dh', (GetDecisionsCount(Alert.GetValue()) + 1) * 4)"
+on_success: break

examples/tls-auth/README.md

@@ -1,7 +1,9 @@
 # Example
+
 ## Using https communication and tls authentication with Crowdsec
 
 ##### Summary
+
 This example demonstrates the use of https between the Traefik plugin and the Crowdsec LAPI.
 
 It is possible to communicate with the LAPI in https and still authenticate with API key.
@@ -17,7 +19,9 @@ In that case the setting **crowdsecLapiTLSInsecureVerify** must be set to true.
 It is recommended to validate the certificate presented by Crowdsec LAPI using the Certificate Authority which created it.
 
 You can provide the Certificate Authority using:
-* A file path readable by Traefik
+
+- A file path readable by Traefik
+
 ```yaml
 http:
   middlewares:
@@ -26,9 +30,11 @@ http:
         bouncer:
           crowdsecLapiTlsCertificateAuthorityFile: /etc/traefik/certs/crowdsecCA.pem
 ```
-* The PEM encoded certificate as a text variable
+
+- The PEM encoded certificate as a text variable
 
 In the static file configuration of Traefik
+
 ```yaml
 http:
   middlewares:
@@ -44,7 +50,9 @@ http:
             Q0veeNzBQXg1f/JxfeA39IDIX1kiCf71tGlT
             -----END CERTIFICATE-----
 ```
+
 In a dynamic configuration of a provider (ex docker) as a Label
+
 ```yaml
 services:
   whoami-foo:
@@ -71,22 +79,34 @@ The service `whoami-foo` will authenticate with an **API key** over HTTPS after
 The service `whoami-bar` will authenticate with a **client certificate** signed by the CA.
 
 Access to a route that communicate via https and authenticate with API-key:
+
 ```
 curl http://localhost:8000/foo
 ```
+
 Access to a route that communicate via https and authenticate with a client certificate:
+
 ```
 curl http://localhost:8000/bar
 ```
+
 Access to the traefik dashboard
+
 ```
 curl http://localhost:8080/dashboard/#/
 ```
 
 To play the demo environnement run:
+
 ```bash
 make run_tlsauth
 ```
 
 Note:
-> Traefik need to be restart if certificates are regenerated after his launch
+
+> Traefik need to be restarted if certificates are regenerated after his launch, crowdsec also
+
+## Separate LAPI and Appsec HTTP/S config
+
+To separate TLS config for LAPI and Appsec, you can use all the TLS LAPI variable beginning with `CrowdsecLapi...` into `CrowdsecAppsec...`.
+Don't forget to set `CrowdsecAppsecScheme: HTTP` or `HTTPS` to trigger the separate setup.

examples/tls-auth/config/acquis.yaml

@@ -2,3 +2,12 @@ filenames:
  - /var/log/traefik/access.log
 labels:
   type: traefik
+---
+listen_addr: 0.0.0.0:7422
+appsec_config: crowdsecurity/virtual-patching
+name: myAppSecComponent
+source: appsec
+labels:
+  type: appsec
+cert_file: /etc/crowdsec/certs/server.pem
+key_file: /etc/crowdsec/certs/server-key.pem

examples/tls-auth/docker-compose.yml

@@ -1,6 +1,6 @@
 services:
   traefik:
-    image: "traefik:v3.0.0"
+    image: "traefik:v3.5.0"
     container_name: "traefik"
     restart: unless-stopped
     command:
@@ -13,15 +13,13 @@ services:
       - "--entrypoints.web.address=:80"
 
       - "--experimental.plugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
-      - "--experimental.plugins.bouncer.version=v1.3.0"
+      - "--experimental.plugins.bouncer.version=v1.5.0"
       # - "--experimental.localplugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
-      - ./LAPIKEY:/etc/traefik/LAPIKEY:ro
       - logs-tls-auth:/var/log/traefik
       - crowdsec-certs-tls-auth:/etc/traefik/crowdsec-certs
       # - ./../../:/plugins-local/src/github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin
-
     ports:
       - 8000:80
       - 8080:8080
@@ -53,27 +51,34 @@ services:
     restart: unless-stopped
     labels:
       - "traefik.enable=true"
-      - "traefik.http.routers.router-bar.rule=Path(`/bar`)"
+      - "traefik.http.routers.router-bar.rule=PathPrefix(`/bar`)"
       - "traefik.http.routers.router-bar.entrypoints=web"
       - "traefik.http.routers.router-bar.middlewares=crowdsec@docker"
       - "traefik.http.services.service-bar.loadbalancer.server.port=80"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.enabled=true"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.loglevel=DEBUG"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecMode=none"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdseclapischeme=https"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecappsecscheme=https"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecAppsecTLSCertificateAuthorityFile=/etc/traefik/crowdsec-certs/inter.pem"
+
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecLapikey=40796d93c2958f9e58345514e67740e5="
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecLapiTLSCertificateAuthorityFile=/etc/traefik/crowdsec-certs/inter.pem"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecLapiTLSCertificateBouncerFile=/etc/traefik/crowdsec-certs/bouncer.pem"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecLapiTLSCertificateBouncerKeyFile=/etc/traefik/crowdsec-certs/bouncer-key.pem"
-
+      # Enable AppSec
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecappsecenabled=true"
+      # Define AppSec host and port informations
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecappsechost=crowdsec:7422"
   crowdsec:
-    image: crowdsecurity/crowdsec:v1.6.1-2
+    image: crowdsecurity/crowdsec:latest
     container_name: "crowdsec"
     restart: unless-stopped
     environment:
-      COLLECTIONS: crowdsecurity/traefik
       CUSTOM_HOSTNAME: crowdsec
       # whoami-foo is authenticating with api key over https
       # whoami-bar is authenticating with tls cert over https
-      BOUNCER_KEY_TRAEFIK_FOO: 40796d93c2958f9e58345514e67740e5
+      BOUNCER_KEY_TRAEFIK_FOO: 40796d93c2958f9e58345514e67740e5=
       LOCAL_API_URL: https://127.0.0.1:8080
       USE_TLS: "true"
       CERT_FILE: "/etc/crowdsec/certs/server.pem"
@@ -88,6 +93,7 @@ services:
       # DISABLE_AGENT: "true"
       # Disabled for the examples
       DISABLE_ONLINE_API: "true"
+      COLLECTIONS: crowdsecurity/traefik crowdsecurity/appsec-virtual-patching crowdsecurity/appsec-generic-rules
     volumes:
       - ./config/acquis.yaml:/etc/crowdsec/acquis.yaml
       # - ./config/config.yaml:/etc/crowdsec/config_local.yaml

examples/tls-auth/gencerts.sh

@@ -1,6 +1,8 @@
 #!/bin/bash
 
-stdout=/out/res.log
+if [ -f "/out/inter-key.pem" ]; then
+  exit 0
+fi
 cfssl gencert --initca /in/ca.json 2>${stdout} | cfssljson --bare "/out/ca" && \
 # Generate an intermediate certificate that will be used to sign the client certificates
 cfssl gencert --initca /in/intermediate.json 2>${stdout} | cfssljson --bare "/out/inter"  && \

go.mod

@@ -4,5 +4,5 @@ go 1.22
 
 require (
 	github.com/leprosus/golang-ttl-map v1.1.7
-	github.com/maxlerebourg/simpleredis v1.0.11
+	github.com/maxlerebourg/simpleredis v1.0.12
 )

go.sum

@@ -1,4 +1,4 @@
 github.com/leprosus/golang-ttl-map v1.1.7 h1:cF4AAFDDnJTFSV+/42sKLhmMluvLdRlCGS2UaifH6UM=
 github.com/leprosus/golang-ttl-map v1.1.7/go.mod h1:4QWHJPeVBbrkhOhXdhCv9IEiyj/YzkO04/iexy4vSe0=
-github.com/maxlerebourg/simpleredis v1.0.11 h1:B33TUeIrHtJH2/Qj2bRdU+UZ1BvZwFyP55JWMxHirWg=
-github.com/maxlerebourg/simpleredis v1.0.11/go.mod h1:lT4LX02SOsE9PxUcSrz1QW5ZnO86gPbaiYBxmtcXEls=
+github.com/maxlerebourg/simpleredis v1.0.12 h1:VsJpk2l8U9QqxOWbYnEXbrs7iSNZFm2fNmFvlxYlQNk=
+github.com/maxlerebourg/simpleredis v1.0.12/go.mod h1:lT4LX02SOsE9PxUcSrz1QW5ZnO86gPbaiYBxmtcXEls=

pkg/cache/cache.go

@@ -5,11 +5,10 @@ package cache
 import (
 	"errors"
 	"fmt"
+	"log/slog"
 
 	ttl_map "github.com/leprosus/golang-ttl-map"
 	simpleredis "github.com/maxlerebourg/simpleredis"
-
-	logger "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/logger"
 )
 
 const (
@@ -53,7 +52,7 @@ func (localCache) delete(key string) {
 }
 
 type redisCache struct {
-	log *logger.Log
+	log *slog.Logger
 }
 
 func (redisCache) get(key string) (string, error) {
@@ -93,11 +92,11 @@ type cacheInterface interface {
 // Client Cache client.
 type Client struct {
 	cache cacheInterface
-	log   *logger.Log
+	log   *slog.Logger
 }
 
 // New Initialize cache client.
-func (c *Client) New(log *logger.Log, isRedis bool, host, pass, database string) {
+func (c *Client) New(log *slog.Logger, isRedis bool, host, pass, database string) {
 	c.log = log
 	if isRedis {
 		redis.Init(host, pass, database)

pkg/captcha/captcha.go

@@ -5,19 +5,18 @@ import (
 	"encoding/json"
 	"fmt"
 	"html/template"
+	"log/slog"
 	"net/http"
 	"net/url"
 	"strings"
 
 	cache "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/cache"
 	configuration "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/configuration"
-	logger "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/logger"
 )
 
 // Client Captcha client.
 type Client struct {
 	Valid                   bool
-	provider                string
 	siteKey                 string
 	secretKey               string
 	remediationCustomHeader string
@@ -25,45 +24,55 @@ type Client struct {
 	captchaTemplate         *template.Template
 	cacheClient             *cache.Client
 	httpClient              *http.Client
-	log                     *logger.Log
+	log                     *slog.Logger
+	infoProvider            *infoProvider
 }
 
+// Information for self-hosted provider.
 type infoProvider struct {
 	js       string
 	key      string
+	response string
 	validate string
 }
 
-var (
 //nolint:gochecknoglobals
-	captcha = map[string]infoProvider{
+var infoProviders = map[string]*infoProvider{
 	configuration.HcaptchaProvider: {
 		js:       "https://hcaptcha.com/1/api.js",
 		key:      "h-captcha",
+		response: "h-captcha-response",
 		validate: "https://api.hcaptcha.com/siteverify",
 	},
 	configuration.RecaptchaProvider: {
 		js:       "https://www.google.com/recaptcha/api.js",
 		key:      "g-recaptcha",
+		response: "g-recaptcha-response",
 		validate: "https://www.google.com/recaptcha/api/siteverify",
 	},
 	configuration.TurnstileProvider: {
 		js:       "https://challenges.cloudflare.com/turnstile/v0/api.js",
 		key:      "cf-turnstile",
+		response: "cf-turnstile-response",
 		validate: "https://challenges.cloudflare.com/turnstile/v0/siteverify",
 	},
 }
-)
 
 // New Initialize captcha client.
-func (c *Client) New(log *logger.Log, cacheClient *cache.Client, httpClient *http.Client, provider, siteKey, secretKey, remediationCustomHeader, captchaTemplatePath string, gracePeriodSeconds int64) error {
+func (c *Client) New(log *slog.Logger, cacheClient *cache.Client, httpClient *http.Client, provider, js, key, response, validate, siteKey, secretKey, remediationCustomHeader, captchaTemplatePath string, gracePeriodSeconds int64) error {
 	c.Valid = provider != ""
 	if !c.Valid {
 		return nil
 	}
+	var info *infoProvider
+	if provider == configuration.CustomProvider {
+		info = &infoProvider{js: js, key: key, response: response, validate: validate}
+	} else {
+		info = infoProviders[provider]
+	}
+	c.infoProvider = info
 	c.siteKey = siteKey
 	c.secretKey = secretKey
-	c.provider = provider
 	c.remediationCustomHeader = remediationCustomHeader
 	html, _ := configuration.GetHTMLTemplate(captchaTemplatePath)
 	c.captchaTemplate = html
@@ -85,6 +94,9 @@ func (c *Client) ServeHTTP(rw http.ResponseWriter, r *http.Request, remoteIP str
 	if valid {
 		c.log.Debug("captcha:ServeHTTP captcha:valid")
 		c.cacheClient.Set(remoteIP+"_captcha", cache.CaptchaDoneValue, c.gracePeriodSeconds)
+		if c.remediationCustomHeader != "" {
+			rw.Header().Set(c.remediationCustomHeader, "solved-captcha")
+		}
 		http.Redirect(rw, r, r.URL.String(), http.StatusFound)
 		return
 	}
@@ -95,8 +107,8 @@ func (c *Client) ServeHTTP(rw http.ResponseWriter, r *http.Request, remoteIP str
 	rw.WriteHeader(http.StatusOK)
 	err = c.captchaTemplate.Execute(rw, map[string]string{
 		"SiteKey":     c.siteKey,
-		"FrontendJS":  captcha[c.provider].js,
-		"FrontendKey": captcha[c.provider].key,
+		"FrontendJS":  c.infoProvider.js,
+		"FrontendKey": c.infoProvider.key,
 	})
 	if err != nil {
 		c.log.Info("captcha:ServeHTTP captchaTemplateServe " + err.Error())
@@ -121,7 +133,7 @@ func (c *Client) Validate(r *http.Request) (bool, error) {
 		c.log.Debug("captcha:Validate invalid method: " + r.Method)
 		return false, nil
 	}
-	var response = r.FormValue(captcha[c.provider].key + "-response")
+	var response = r.FormValue(c.infoProvider.response)
 	if response == "" {
 		c.log.Debug("captcha:Validate no captcha response found in request")
 		return false, nil
@@ -129,7 +141,7 @@ func (c *Client) Validate(r *http.Request) (bool, error) {
 	var body = url.Values{}
 	body.Add("secret", c.secretKey)
 	body.Add("response", response)
-	res, err := c.httpClient.PostForm(captcha[c.provider].validate, body)
+	res, err := c.httpClient.PostForm(c.infoProvider.validate, body)
 	if err != nil {
 		return false, err
 	}

pkg/configuration/configuration.go

@@ -7,6 +7,7 @@ import (
 	"errors"
 	"fmt"
 	"html/template"
+	"log/slog"
 	"net/http"
 	"net/url"
 	"os"
@@ -16,7 +17,6 @@ import (
 	"strings"
 
 	ip "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/ip"
-	logger "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/logger"
 )
 
 // Enums for crowdsec mode.
@@ -30,21 +30,37 @@ const (
 	HTTP              = "http"
 	LogDEBUG          = "DEBUG"
 	LogINFO           = "INFO"
+	LogWARN           = "WARN"
 	LogERROR          = "ERROR"
+	ReasonTECH        = "TECHNICAL_ISSUE"
+	ReasonLAPI        = "LAPI"
+	ReasonAPPSEC      = "APPSEC"
 	HcaptchaProvider  = "hcaptcha"
 	RecaptchaProvider = "recaptcha"
 	TurnstileProvider = "turnstile"
+	CustomProvider    = "custom"
 )
 
 // Config the plugin configuration.
 type Config struct {
 	Enabled                                    bool     `json:"enabled,omitempty"`
 	LogLevel                                   string   `json:"logLevel,omitempty"`
+	LogFormat                                  string   `json:"logFormat,omitempty"`
 	LogFilePath                                string   `json:"logFilePath,omitempty"`
 	CrowdsecMode                               string   `json:"crowdsecMode,omitempty"`
 	CrowdsecAppsecEnabled                      bool     `json:"crowdsecAppsecEnabled,omitempty"`
+	CrowdsecAppsecScheme                       string   `json:"crowdsecAppsecScheme,omitempty"`
 	CrowdsecAppsecHost                         string   `json:"crowdsecAppsecHost,omitempty"`
 	CrowdsecAppsecPath                         string   `json:"crowdsecAppsecPath,omitempty"`
+	CrowdsecAppsecKey                          string   `json:"crowdsecAppsecKey,omitempty"`
+	CrowdsecAppsecKeyFile                      string   `json:"crowdsecAppsecKeyFile,omitempty"`
+	CrowdsecAppsecTLSInsecureVerify            bool     `json:"crowdsecAppsecTlsInsecureVerify,omitempty"`
+	CrowdsecAppsecTLSCertificateAuthority      string   `json:"crowdsecAppsecTlsCertificateAuthority,omitempty"`
+	CrowdsecAppsecTLSCertificateAuthorityFile  string   `json:"crowdsecAppsecTlsCertificateAuthorityFile,omitempty"`
+	CrowdsecAppsecTLSCertificateBouncer        string   `json:"crowdsecAppsecTlsCertificateBouncer,omitempty"`
+	CrowdsecAppsecTLSCertificateBouncerFile    string   `json:"crowdsecAppsecTlsCertificateBouncerFile,omitempty"`
+	CrowdsecAppsecTLSCertificateBouncerKey     string   `json:"crowdsecAppsecTlsCertificateBouncerKey,omitempty"`
+	CrowdsecAppsecTLSCertificateBouncerKeyFile string   `json:"crowdsecAppsecTlsCertificateBouncerKeyFile,omitempty"`
 	CrowdsecAppsecFailureBlock                 bool     `json:"crowdsecAppsecFailureBlock,omitempty"`
 	CrowdsecAppsecUnreachableBlock             bool     `json:"crowdsecAppsecUnreachableBlock,omitempty"`
 	CrowdsecAppsecBodyLimit                    int64    `json:"crowdsecAppsecBodyLimit,omitempty"`
@@ -66,10 +82,13 @@ type Config struct {
 	CrowdsecCapiPasswordFile                   string   `json:"crowdsecCapiPasswordFile,omitempty"`
 	CrowdsecCapiScenarios                      []string `json:"crowdsecCapiScenarios,omitempty"`
 	UpdateIntervalSeconds                      int64    `json:"updateIntervalSeconds,omitempty"`
-	UpdateMaxFailure                         int      `json:"updateMaxFailure,omitempty"`
+	MetricsUpdateIntervalSeconds               int64    `json:"metricsUpdateIntervalSeconds,omitempty"`
+	UpdateMaxFailure                           int64    `json:"updateMaxFailure,omitempty"`
+	StreamStartupBlock                         bool     `json:"streamStartupBlock,omitempty"`
 	DefaultDecisionSeconds                     int64    `json:"defaultDecisionSeconds,omitempty"`
 	RemediationStatusCode                      int      `json:"remediationStatusCode,omitempty"`
 	HTTPTimeoutSeconds                         int64    `json:"httpTimeoutSeconds,omitempty"`
+	TraceHeadersCustomName                     string   `json:"traceHeadersCustomName,omitempty"`
 	RemediationHeadersCustomName               string   `json:"remediationHeadersCustomName,omitempty"`
 	ForwardedHeadersCustomName                 string   `json:"forwardedHeadersCustomName,omitempty"`
 	ForwardedHeadersTrustedIPs                 []string `json:"forwardedHeadersTrustedIps,omitempty"`
@@ -83,6 +102,10 @@ type Config struct {
 	BanHTMLFilePath                            string   `json:"banHtmlFilePath,omitempty"`
 	CaptchaHTMLFilePath                        string   `json:"captchaHtmlFilePath,omitempty"`
 	CaptchaProvider                            string   `json:"captchaProvider,omitempty"`
+	CaptchaCustomJsURL                         string   `json:"captchaCustomJsUrl,omitempty"`
+	CaptchaCustomValidateURL                   string   `json:"captchaCustomValidateUrl,omitempty"`
+	CaptchaCustomKey                           string   `json:"captchaCustomKey,omitempty"`
+	CaptchaCustomResponse                      string   `json:"captchaCustomResponse,omitempty"`
 	CaptchaSiteKey                             string   `json:"captchaSiteKey,omitempty"`
 	CaptchaSiteKeyFile                         string   `json:"captchaSiteKeyFile,omitempty"`
 	CaptchaSecretKey                           string   `json:"captchaSecretKey,omitempty"`
@@ -104,30 +127,41 @@ func New() *Config {
 	return &Config{
 		Enabled:                         false,
 		LogLevel:                        LogINFO,
+		LogFormat:                       "common",
 		LogFilePath:                     "",
 		CrowdsecMode:                    LiveMode,
 		CrowdsecAppsecEnabled:           false,
-		CrowdsecAppsecHost:             "crowdsec:7422",
-		CrowdsecAppsecPath:             "/",
 		CrowdsecAppsecFailureBlock:      true,
 		CrowdsecAppsecUnreachableBlock:  true,
 		CrowdsecAppsecBodyLimit:         10485760,
+		CrowdsecAppsecScheme:            "",
+		CrowdsecAppsecHost:              "crowdsec:7422",
+		CrowdsecAppsecPath:              "/",
+		CrowdsecAppsecKey:               "",
+		CrowdsecAppsecTLSInsecureVerify: false,
 		CrowdsecLapiScheme:              HTTP,
 		CrowdsecLapiHost:                "crowdsec:8080",
 		CrowdsecLapiPath:                "/",
 		CrowdsecLapiKey:                 "",
 		CrowdsecLapiTLSInsecureVerify:   false,
 		UpdateIntervalSeconds:           60,
+		MetricsUpdateIntervalSeconds:    600,
 		UpdateMaxFailure:                0,
+		StreamStartupBlock:              true,
 		DefaultDecisionSeconds:          60,
 		RemediationStatusCode:           http.StatusForbidden,
 		HTTPTimeoutSeconds:              10,
 		CaptchaProvider:                 "",
+		CaptchaCustomJsURL:              "",
+		CaptchaCustomValidateURL:        "",
+		CaptchaCustomKey:                "",
+		CaptchaCustomResponse:           "",
 		CaptchaSiteKey:                  "",
 		CaptchaSecretKey:                "",
 		CaptchaGracePeriodSeconds:       1800,
 		CaptchaHTMLFilePath:             "/captcha.html",
 		BanHTMLFilePath:                 "",
+		TraceHeadersCustomName:          "",
 		RemediationHeadersCustomName:    "",
 		ForwardedHeadersCustomName:      "X-Forwarded-For",
 		ForwardedHeadersTrustedIPs:      []string{},
@@ -189,15 +223,19 @@ func GetHTMLTemplate(path string) (*template.Template, error) {
 // ValidateParams validate all the param gave by user.
 //
 //nolint:gocyclo,gocognit
-func ValidateParams(config *Config) error {
+func ValidateParams(config *Config, log *slog.Logger) error {
 	if err := validateParamsRequired(config); err != nil {
 		return err
 	}
 
-	if err := validateParamsIPs(config.ForwardedHeadersTrustedIPs, "ForwardedHeadersTrustedIPs"); err != nil {
+	if err := validateCaptcha(config); err != nil {
 		return err
 	}
-	if err := validateParamsIPs(config.ClientTrustedIPs, "ClientTrustedIPs"); err != nil {
+
+	if err := validateParamsIPs(log, config.ForwardedHeadersTrustedIPs, "ForwardedHeadersTrustedIPs"); err != nil {
+		return err
+	}
+	if err := validateParamsIPs(log, config.ClientTrustedIPs, "ClientTrustedIPs"); err != nil {
 		return err
 	}
 
@@ -244,6 +282,10 @@ func ValidateParams(config *Config) error {
 	if err != nil {
 		return err
 	}
+	appsecKey, err := GetVariable(config, "CrowdsecAppsecKey")
+	if err != nil {
+		return err
+	}
 	certBouncer, err := GetVariable(config, "CrowdsecLapiTLSCertificateBouncer")
 	if err != nil {
 		return err
@@ -252,12 +294,21 @@ func ValidateParams(config *Config) error {
 	if err != nil {
 		return err
 	}
+
 	// We need to either have crowdsecLapiKey defined or the BouncerCert and Bouncerkey
-	if lapiKey == "" && (certBouncer == "" || certBouncerKey == "") {
+	if lapiKey == "" && (certBouncer == "" || certBouncerKey == "") && config.CrowdsecMode != AppsecMode {
 		return errors.New("CrowdsecLapiKey || (CrowdsecLapiTLSCertificateBouncer && CrowdsecLapiTLSCertificateBouncerKey): cannot be all empty")
 	} else if lapiKey != "" && (certBouncer == "" || certBouncerKey == "") {
 		lapiKey = strings.TrimSpace(lapiKey)
-		if err = validateParamsAPIKey(lapiKey); err != nil {
+		if err = validateParamsAPIKey(lapiKey, "CrowdsecLapiKey"); err != nil {
+			return err
+		}
+	}
+
+	// Validate CrowdsecAppsecKey if provided
+	if appsecKey != "" {
+		appsecKey = strings.TrimSpace(appsecKey)
+		if err = validateParamsAPIKey(appsecKey, "CrowdsecAppsecKey"); err != nil {
 			return err
 		}
 	}
@@ -271,8 +322,8 @@ func ValidateParams(config *Config) error {
 
 	// Check logging configuration
 	// to upper allow of anycase of log level
-	if !contains([]string{LogERROR, LogDEBUG, LogINFO}, strings.ToUpper(config.LogLevel)) {
-		return fmt.Errorf("LogLevel should be one of (%s,%s,%s)", LogDEBUG, LogINFO, LogERROR)
+	if !contains([]string{LogDEBUG, LogINFO, LogWARN, LogERROR}, strings.ToUpper(config.LogLevel)) {
+		return fmt.Errorf("LogLevel should be one of (%s,%s,%s,%s)", LogDEBUG, LogINFO, LogWARN, LogERROR)
 	}
 	if config.LogFilePath != "" {
 		_, err = os.OpenFile(filepath.Clean(config.LogFilePath), os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0600)
@@ -296,10 +347,10 @@ func validateURL(variable, scheme, host, path string) error {
 // field name. RFC 7230 says:
 // valid ! # $ % & ' * + - . ^ _ ` | ~ DIGIT ALPHA
 // See https://httpwg.github.io/specs/rfc7230.html#rule.token.separators
-func validateParamsAPIKey(lapiKey string) error {
+func validateParamsAPIKey(key string, paramName string) error {
 	reg := regexp.MustCompile("^[a-zA-Z0-9 !#$%&'*+-.^_`|~=/]*$")
-	if !reg.MatchString(lapiKey) {
-		return fmt.Errorf("CrowdsecLapiKey doesn't valid this regexp: '/%s/'", reg.String())
+	if !reg.MatchString(key) {
+		return fmt.Errorf("%s doesn't validate this regexp: '/%s/'", paramName, reg.String())
 	}
 	return nil
 }
@@ -320,15 +371,33 @@ func validateParamsTLS(config *Config) error {
 	return nil
 }
 
-func validateParamsIPs(listIP []string, key string) error {
+func validateParamsIPs(log *slog.Logger, listIP []string, key string) error {
 	if len(listIP) > 0 {
-		if _, err := ip.NewChecker(logger.New(LogINFO, ""), listIP); err != nil {
+		if _, err := ip.NewChecker(log, listIP); err != nil {
 			return fmt.Errorf("%s must be a list of IP/CIDR :%w", key, err)
 		}
 	}
 	return nil
 }
 
+func validateCaptcha(config *Config) error {
+	if !contains([]string{"", HcaptchaProvider, RecaptchaProvider, TurnstileProvider, CustomProvider}, config.CaptchaProvider) {
+		return fmt.Errorf("CaptchaProvider: must be one of '%s', '%s', '%s' or '%s'", HcaptchaProvider, RecaptchaProvider, TurnstileProvider, CustomProvider)
+	}
+	if config.CaptchaProvider == CustomProvider {
+		if config.CaptchaCustomKey == "" || config.CaptchaCustomResponse == "" || config.CaptchaCustomValidateURL == "" || config.CaptchaCustomJsURL == "" {
+			return fmt.Errorf(
+				"CaptchaProvider: provider is custom, captchaCustom variables must be filled: CaptchaCustomKey:%s, CaptchaCustomResponse:%s, CaptchaCustomValidateURL:%s, CaptchaCustomJsURL:%s",
+				config.CaptchaCustomKey,
+				config.CaptchaCustomResponse,
+				config.CaptchaCustomValidateURL,
+				config.CaptchaCustomJsURL,
+			)
+		}
+	}
+	return nil
+}
+
 func validateParamsRequired(config *Config) error {
 	requiredStrings := map[string]string{
 		"CrowdsecLapiScheme": config.CrowdsecLapiScheme,
@@ -337,18 +406,27 @@ func validateParamsRequired(config *Config) error {
 	}
 	for key, val := range requiredStrings {
 		if len(val) == 0 {
-			return fmt.Errorf("%v: cannot be empty", key)
+			return errors.New(key + ": cannot be empty")
 		}
 	}
-	requiredInt := map[string]int64{
+	requiredInt0 := map[string]int64{
+		"CrowdsecAppsecBodyLimit":      config.CrowdsecAppsecBodyLimit,
+		"MetricsUpdateIntervalSeconds": config.MetricsUpdateIntervalSeconds,
+	}
+	for key, val := range requiredInt0 {
+		if val < 0 {
+			return errors.New(key + ": cannot be less than 0")
+		}
+	}
+	requiredInt1 := map[string]int64{
 		"UpdateIntervalSeconds":     config.UpdateIntervalSeconds,
 		"DefaultDecisionSeconds":    config.DefaultDecisionSeconds,
 		"HTTPTimeoutSeconds":        config.HTTPTimeoutSeconds,
 		"CaptchaGracePeriodSeconds": config.CaptchaGracePeriodSeconds,
 	}
-	for key, val := range requiredInt {
+	for key, val := range requiredInt1 {
 		if val < 1 {
-			return fmt.Errorf("%v: cannot be less than 1", key)
+			return errors.New(key + ": cannot be less than 1")
 		}
 	}
 	if config.UpdateMaxFailure < -1 {
@@ -367,29 +445,27 @@ func validateParamsRequired(config *Config) error {
 	if !contains([]string{HTTP, HTTPS}, config.CrowdsecLapiScheme) {
 		return errors.New("CrowdsecLapiScheme: must be one of 'http' or 'https'")
 	}
-	if !contains([]string{"", HcaptchaProvider, RecaptchaProvider, TurnstileProvider}, config.CaptchaProvider) {
-		return errors.New("CaptchaProvider: must be one of 'hcaptcha', 'recaptcha' or 'turnstile'")
+	if !contains([]string{HTTP, HTTPS, ""}, config.CrowdsecAppsecScheme) {
+		return errors.New("CrowdsecAppsecScheme: must be one of 'http' or 'https'")
 	}
 	return nil
 }
 
-// GetTLSConfigCrowdsec get TLS config from Config.
-//
-//nolint:nestif
-func GetTLSConfigCrowdsec(config *Config, log *logger.Log) (*tls.Config, error) {
+func getTLSConfig(config *Config, log *slog.Logger, prefix, scheme string, insecureVerify bool) (*tls.Config, error) {
 	tlsConfig := new(tls.Config)
 	tlsConfig.RootCAs = x509.NewCertPool()
-	//nolint:gocritic
-	if config.CrowdsecLapiScheme != HTTPS {
-		log.Debug("getTLSConfigCrowdsec:CrowdsecLapiScheme https:no")
+	if scheme != HTTPS {
+		log.Debug("getTLSConfig:" + prefix + "Scheme https:no")
 		return tlsConfig, nil
-	} else if config.CrowdsecLapiTLSInsecureVerify {
+	}
+	//nolint:nestif
+	if insecureVerify {
 		tlsConfig.InsecureSkipVerify = true
-		log.Debug("getTLSConfigCrowdsec:CrowdsecLapiTLSInsecureVerify tlsInsecure:true")
+		log.Debug("getTLSConfig:" + prefix + "TLSInsecureVerify tlsInsecure:true")
 		// If we return here and still want to use client auth this won't work
 		// return tlsConfig, nil
 	} else {
-		certAuthority, err := GetVariable(config, "CrowdsecLapiTLSCertificateAuthority")
+		certAuthority, err := GetVariable(config, prefix+"TLSCertificateAuthority")
 		if err != nil {
 			return nil, err
 		}
@@ -397,17 +473,16 @@ func GetTLSConfigCrowdsec(config *Config, log *logger.Log) (*tls.Config, error)
 			if !tlsConfig.RootCAs.AppendCertsFromPEM([]byte(certAuthority)) {
 				// here we return because if CrowdsecLapiTLSInsecureVerify is false
 				// and CA not load, we can't communicate with https
-				return nil, errors.New("getTLSConfigCrowdsec:cannot load CA and verify cert is enabled")
+				return nil, errors.New("getTLSConfig:" + prefix + " cannot load CA and verify cert is enabled")
 			}
-			log.Debug("getTLSConfigCrowdsec:CrowdsecLapiTLSCertificateAuthority CA added successfully")
+			log.Debug("getTLSConfig:" + prefix + "TLSCertificateAuthority CA added successfully")
 		}
 	}
-
-	certBouncer, err := GetVariable(config, "CrowdsecLapiTLSCertificateBouncer")
+	certBouncer, err := GetVariable(config, prefix+"TLSCertificateBouncer")
 	if err != nil {
 		return nil, err
 	}
-	certBouncerKey, err := GetVariable(config, "CrowdsecLapiTLSCertificateBouncerKey")
+	certBouncerKey, err := GetVariable(config, prefix+"TLSCertificateBouncerKey")
 	if err != nil {
 		return nil, err
 	}
@@ -422,3 +497,14 @@ func GetTLSConfigCrowdsec(config *Config, log *logger.Log) (*tls.Config, error)
 
 	return tlsConfig, nil
 }
+
+// GetTLSConfigCrowdsec get TLS config from Config.
+func GetTLSConfigCrowdsec(config *Config, log *slog.Logger, isAppsec bool) (*tls.Config, error) {
+	var prefix string
+	if isAppsec && config.CrowdsecAppsecScheme != "" {
+		prefix = "CrowdsecAppsec"
+		return getTLSConfig(config, log, prefix, config.CrowdsecAppsecScheme, config.CrowdsecAppsecTLSInsecureVerify)
+	}
+	prefix = "CrowdsecLapi"
+	return getTLSConfig(config, log, prefix, config.CrowdsecLapiScheme, config.CrowdsecLapiTLSInsecureVerify)
+}

pkg/configuration/configuration_test.go

@@ -72,6 +72,7 @@ func Test_GetVariable(t *testing.T) {
 }
 
 func Test_ValidateParams(t *testing.T) {
+	log := logger.New("INFO", "")
 	cfg1 := New()
 	cfg1.CrowdsecLapiKey = "test\n\n"
 	cfg2 := New()
@@ -117,7 +118,7 @@ func Test_ValidateParams(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			if err := ValidateParams(tt.args.config); (err != nil) != tt.wantErr {
+			if err := ValidateParams(tt.args.config, log); (err != nil) != tt.wantErr {
 				t.Errorf("validateParams() error = %v, wantErr %v", err, tt.wantErr)
 			}
 		})
@@ -145,6 +146,7 @@ func Test_validateParamsTLS(t *testing.T) {
 }
 
 func Test_validateParamsIPs(t *testing.T) {
+	log := logger.New("INFO", "")
 	type args struct {
 		listIP []string
 		key    string
@@ -164,7 +166,7 @@ func Test_validateParamsIPs(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			if err := validateParamsIPs(tt.args.listIP, tt.args.key); (err != nil) != tt.wantErr {
+			if err := validateParamsIPs(log, tt.args.listIP, tt.args.key); (err != nil) != tt.wantErr {
 				t.Errorf("validateParamsIPs() error = %v, wantErr %v", err, tt.wantErr)
 			}
 		})
@@ -206,22 +208,23 @@ func Test_validateParamsRequired(t *testing.T) {
 func Test_validateParamsAPIKey(t *testing.T) {
 	type args struct {
 		lapiKey   string
+		paramName string
 	}
 	tests := []struct {
 		name    string
 		args    args
 		wantErr bool
 	}{
-		{name: "Validate all the valid characters", args: args{lapiKey: "test!#$%&'*+-.^_`|~"}, wantErr: false},
-		{name: "Not validate a @", args: args{lapiKey: "test@"}, wantErr: true},
-		{name: "Not validate a (", args: args{lapiKey: "test("}, wantErr: true},
-		{name: "Not validate a [", args: args{lapiKey: "test["}, wantErr: true},
-		{name: "Not validate a ?", args: args{lapiKey: "test?"}, wantErr: true},
-		{name: "Not validate a \\n, (must be trimed before)", args: args{lapiKey: "test\n"}, wantErr: true},
+		{name: "Validate all the valid characters", args: args{lapiKey: "test!#$%&'*+-.^_`|~", paramName: "CrowdsecParamName"}, wantErr: false},
+		{name: "Not validate a @", args: args{lapiKey: "test@", paramName: "CrowdsecParamName"}, wantErr: true},
+		{name: "Not validate a (", args: args{lapiKey: "test(", paramName: "CrowdsecParamName"}, wantErr: true},
+		{name: "Not validate a [", args: args{lapiKey: "test[", paramName: "CrowdsecParamName"}, wantErr: true},
+		{name: "Not validate a ?", args: args{lapiKey: "test?", paramName: "CrowdsecParamName"}, wantErr: true},
+		{name: "Not validate a \\n, (must be trimed before)", args: args{lapiKey: "test\n", paramName: "CrowdsecParamName"}, wantErr: true},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			if err := validateParamsAPIKey(tt.args.lapiKey); (err != nil) != tt.wantErr {
+			if err := validateParamsAPIKey(tt.args.lapiKey, tt.args.paramName); (err != nil) != tt.wantErr {
 				t.Errorf("validateParamsAPIKey() error = %v, wantErr %v", err, tt.wantErr)
 			}
 		})
@@ -229,6 +232,7 @@ func Test_validateParamsAPIKey(t *testing.T) {
 }
 
 func Test_GetTLSConfigCrowdsec(t *testing.T) {
+	log := logger.New("INFO", "")
 	type args struct {
 		config *Config
 	}
@@ -242,7 +246,7 @@ func Test_GetTLSConfigCrowdsec(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			got, err := GetTLSConfigCrowdsec(tt.args.config, logger.New("INFO", ""))
+			got, err := GetTLSConfigCrowdsec(tt.args.config, log, false)
 			if (err != nil) != tt.wantErr {
 				t.Errorf("getTLSConfigCrowdsec() error = %v, wantErr %v", err, tt.wantErr)
 				return

pkg/ip/ip.go

@@ -5,11 +5,10 @@ package ip
 import (
 	"errors"
 	"fmt"
+	"log/slog"
 	"net"
 	"net/http"
 	"strings"
-
-	logger "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/logger"
 )
 
 // CHECKER
@@ -21,7 +20,7 @@ type Checker struct {
 }
 
 // NewChecker builds a new Checker given a list of CIDR-Strings to trusted IPs.
-func NewChecker(log *logger.Log, trustedIPs []string) (*Checker, error) {
+func NewChecker(log *slog.Logger, trustedIPs []string) (*Checker, error) {
 	checker := &Checker{}
 
 	for _, ipMaskRaw := range trustedIPs {

pkg/logger/logger.go

@@ -1,65 +1,92 @@
 // Package logger implements utility routines to write to stdout and stderr.
-// It supports debug, info and error level
+// It supports trace, debug, info, warn and error level using Go's standard log/slog
 package logger
 
 import (
-	"fmt"
-	"io"
-	"log"
+	"log/slog"
 	"os"
 	"path/filepath"
 )
 
-// Log Logger struct.
-type Log struct {
-	logError *log.Logger
-	logInfo  *log.Logger
-	logDebug *log.Logger
+// Custom log levels following slog best practices.
+const (
+	LevelDebug = slog.LevelDebug
+	LevelInfo  = slog.LevelInfo
+	LevelWarn  = slog.LevelWarn
+	LevelError = slog.LevelError
+)
+
+// New creates a Log wrapper with default format (common).
+func New(logLevel string, logFilePath string) *slog.Logger {
+	return NewWithFormat(logLevel, logFilePath, "common")
 }
 
-// New Set Default log level to info in case log level to defined.
-func New(logLevel string, logFilePath string) *Log {
-	logError := log.New(io.Discard, "ERROR: CrowdsecBouncerTraefikPlugin: ", log.Ldate|log.Ltime)
-	logInfo := log.New(io.Discard, "INFO: CrowdsecBouncerTraefikPlugin: ", log.Ldate|log.Ltime)
-	logDebug := log.New(io.Discard, "DEBUG: CrowdsecBouncerTraefikPlugin: ", log.Ldate|log.Ltime)
-
-	logError.SetOutput(os.Stderr)
-	logInfo.SetOutput(os.Stdout)
-	// we initialize logger to STDOUT/STDERR first so if the file logger cannot be initialized we can inform the user
-	if logLevel == "DEBUG" {
-		logDebug.SetOutput(os.Stdout)
+// NewWithFormat creates a Log wrapper with specified format (common or json).
+func NewWithFormat(logLevel, logFilePath, logFormat string) *slog.Logger {
+	// Determine log level
+	var level slog.Level
+	switch logLevel {
+	case "ERROR":
+		level = LevelError
+	case "WARN":
+		level = LevelWarn
+	case "INFO":
+		level = LevelInfo
+	case "DEBUG":
+		level = LevelDebug
+	default:
+		// Default to INFO level
+		level = LevelInfo
 	}
+
+	// Set output destination
+	var output *os.File
 	if logFilePath != "" {
 		logFile, err := os.OpenFile(filepath.Clean(logFilePath), os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0600)
-		if err != nil {
-			_ = fmt.Errorf("LogFilePath is not writable %w", err)
+		if err == nil {
+			output = logFile
 		} else {
-			logInfo.SetOutput(logFile)
-			logError.SetOutput(logFile)
-			if logLevel == "DEBUG" {
-				logDebug.SetOutput(logFile)
-			}
+			// Fall back to stdout and log the error
+			output = os.Stdout
+			slog.Warn("LogFilePath is not writable, using stdout", "error", err)
 		}
+	} else {
+		output = os.Stdout
 	}
 
-	return &Log{
-		logError: logError,
-		logInfo:  logInfo,
-		logDebug: logDebug,
+	// Create handler based on format with custom level names
+	var handler slog.Handler
+	opts := &slog.HandlerOptions{
+		Level: level,
+		ReplaceAttr: func(_ []string, a slog.Attr) slog.Attr {
+			// Customize level names to match our expected format
+			if a.Key == slog.LevelKey {
+				lvl, ok := a.Value.Any().(slog.Level)
+				if !ok {
+					return a
 				}
+				switch {
+				case lvl < LevelInfo:
+					a.Value = slog.StringValue("DEBUG")
+				case lvl < LevelWarn:
+					a.Value = slog.StringValue("INFO")
+				case lvl < LevelError:
+					a.Value = slog.StringValue("WARN")
+				default:
+					a.Value = slog.StringValue("ERROR")
+				}
+			}
+			return a
+		},
 	}
 
-// Info log to Stdout.
-func (l *Log) Info(str string) {
-	l.logInfo.Printf("%s", str)
+	if logFormat == "json" {
+		handler = slog.NewJSONHandler(output, opts)
+	} else {
+		// Common format (default)
+		handler = slog.NewTextHandler(output, opts)
 	}
 
-// Debug log to Stdout.
-func (l *Log) Debug(str string) {
-	l.logDebug.Printf("%s", str)
-}
-
-// Error log to Stderr.
-func (l *Log) Error(str string) {
-	l.logError.Printf("%s", str)
+	// Create logger with component attribute
+	return slog.New(handler).With("component", "CrowdsecBouncerTraefikPlugin")
 }

pkg/logger/logger_test.go

@@ -0,0 +1,156 @@
+package logger
+
+import (
+	"bytes"
+	"encoding/json"
+	"log/slog"
+	"strings"
+	"testing"
+)
+
+func TestNew(t *testing.T) {
+	tests := []struct {
+		name     string
+		logLevel string
+	}{
+		{name: "ERROR level", logLevel: "ERROR"},
+		{name: "WARN level", logLevel: "WARN"},
+		{name: "INFO level", logLevel: "INFO"},
+		{name: "DEBUG level", logLevel: "DEBUG"},
+		{name: "Default level (INFO)", logLevel: "INVALID"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			logger := New(tt.logLevel, "")
+
+			// Verify logger is created
+			if logger == nil {
+				t.Fatal("Expected logger to be created, got nil")
+			}
+
+			// Verify it's a slog.Logger (we can call methods on it)
+			logger.Info("test initialization")
+		})
+	}
+}
+
+func TestJSONLogFormat(t *testing.T) {
+	var buf bytes.Buffer
+
+	// Create a logger with JSON handler to capture output
+	handler := slog.NewJSONHandler(&buf, &slog.HandlerOptions{Level: slog.LevelInfo})
+	logger := slog.New(handler).With("component", "CrowdsecBouncerTraefikPlugin")
+
+	testMessage := "json test message"
+	logger.Info(testMessage)
+
+	output := buf.String()
+	lines := strings.Split(strings.TrimSpace(output), "\n")
+
+	if len(lines) != 1 {
+		t.Fatalf("Expected 1 log line, got %d", len(lines))
+	}
+
+	// Verify it's valid JSON
+	var logEntry map[string]interface{}
+	err := json.Unmarshal([]byte(lines[0]), &logEntry)
+	if err != nil {
+		t.Fatalf("Expected valid JSON output, got error: %v, output: %s", err, output)
+	}
+
+	// Verify JSON structure
+	if logEntry["level"] != "INFO" {
+		t.Errorf("Expected level 'INFO', got '%v'", logEntry["level"])
+	}
+	if logEntry["msg"] != testMessage {
+		t.Errorf("Expected message '%s', got '%v'", testMessage, logEntry["msg"])
+	}
+	if logEntry["time"] == nil {
+		t.Error("Expected timestamp to be set")
+	}
+	if logEntry["component"] != "CrowdsecBouncerTraefikPlugin" {
+		t.Errorf("Expected component 'CrowdsecBouncerTraefikPlugin', got '%v'", logEntry["component"])
+	}
+}
+
+func TestCommonLogFormat(t *testing.T) {
+	var buf bytes.Buffer
+
+	// Create a logger with text handler to capture output
+	handler := slog.NewTextHandler(&buf, &slog.HandlerOptions{Level: slog.LevelInfo})
+	logger := slog.New(handler).With("component", "CrowdsecBouncerTraefikPlugin")
+
+	testMessage := "common test message"
+	logger.Info(testMessage)
+
+	output := buf.String()
+
+	// Verify common format (should contain level and message)
+	if !strings.Contains(output, "level=INFO") {
+		t.Error("Expected common format with INFO level")
+	}
+	if !strings.Contains(output, testMessage) {
+		t.Error("Expected test message in common format")
+	}
+	if !strings.Contains(output, "component=CrowdsecBouncerTraefikPlugin") {
+		t.Error("Expected component field in common format")
+	}
+
+	// Should NOT be JSON (should be slog text format)
+	var logEntry map[string]interface{}
+	err := json.Unmarshal([]byte(strings.TrimSpace(output)), &logEntry)
+	if err == nil {
+		t.Error("Expected common format (not JSON), but got valid JSON")
+	}
+}
+
+func TestErrorLevel(t *testing.T) {
+	var buf bytes.Buffer
+
+	// Create a logger with ERROR level to capture output
+	handler := slog.NewTextHandler(&buf, &slog.HandlerOptions{Level: slog.LevelError})
+	logger := slog.New(handler).With("component", "CrowdsecBouncerTraefikPlugin")
+
+	testMessage := "error only test"
+
+	// Test all log methods
+	logger.Error(testMessage)
+	logger.Warn(testMessage)  // Should not appear
+	logger.Info(testMessage)  // Should not appear
+	logger.Debug(testMessage) // Should not appear
+
+	output := buf.String()
+
+	// Only ERROR should appear
+	if !strings.Contains(output, "level=ERROR") {
+		t.Error("Expected ERROR message to appear")
+	}
+
+	// Other levels should NOT appear
+	unwantedLevels := []string{"level=WARN", "level=INFO", "level=DEBUG"}
+	for _, level := range unwantedLevels {
+		if strings.Contains(output, level) {
+			t.Errorf("Unexpected %s message appeared at ERROR level", level)
+		}
+	}
+
+	// Verify only one message appears
+	messageCount := strings.Count(output, testMessage)
+	if messageCount != 1 {
+		t.Errorf("Expected 1 occurrence of test message at ERROR level, got %d", messageCount)
+	}
+}
+
+func TestInvalidLogFile(t *testing.T) {
+	// Try to create logger with invalid file path
+	logger := New("INFO", "/invalid/path/that/does/not/exist/test.log")
+
+	// Logger should still be created (falls back to stdout)
+	if logger == nil {
+		t.Fatal("Expected logger to be created even with invalid file path")
+	}
+
+	// Should not panic when logging
+	logger.Info("test message")
+}

tests/e2e/mock/README.md

@@ -0,0 +1,84 @@
+# Binary e2e suite (Traefik binary + mock LAPI)
+
+This suite runs **Traefik as a downloaded binary** with the plugin loaded from
+the local source tree, and replaces Crowdsec with a small **HTTP mock**
+([`mocklapi/`](mocklapi/main.go), a stdlib-only Go command). No Docker, no real
+Crowdsec.
+
+It is what **CI runs** (`make e2e_mock`). A separate, local-only **Docker
+suite** (real Traefik + Crowdsec, under `tests/e2e/scenarios`) is kept for
+high-fidelity debugging against a real Crowdsec but is not exercised in CI; it
+ships in its own PR (#333).
+
+## Scope — what this suite tests
+
+These tests validate the **plugin's own behaviour**: the request flow through
+the Traefik middleware, the live / none / stream modes, caching, trusted-IP
+bypass, ban / captcha page rendering, and the AppSec request path (header
+forwarding + enforcing the engine's allow/block verdict).
+
+The mock stands in for Crowdsec, emulating the slice of the LAPI HTTP contract
+the plugin consumes — including a single, deterministic AppSec rule (block any
+URI containing `rpc2`, the probe from [`examples/appsec-enabled`](../../../examples/appsec-enabled)).
+It is not the real WAF engine, so this suite exercises the plugin's AppSec
+*wiring* rather than the detection accuracy of OWASP CRS / virtual patching —
+that lives upstream in Crowdsec.
+
+## What runs
+
+| Component | How |
+|-----------|-----|
+| Traefik   | Binary `v3.7.1`, downloaded into `.cache/` (reused across local runs; re-downloaded on fresh CI runners) |
+| Plugin    | Loaded via `experimental.localPlugins` from the repo root (symlinked into `plugins-local/`) |
+| LAPI      | `mocklapi` — a stdlib-only Go command (its own nested module), compiled and cached under `.cache/`, driven through `/admin` endpoints instead of `cscli` |
+| AppSec    | WAF stand-in built into the mock — blocks URIs containing `rpc2`, allows the rest |
+| Backend   | A plain HTTP responder built into the mock |
+
+Fixed ports (override with env vars if needed): Traefik `8000`, LAPI `8090`,
+backend `8091`, AppSec `8092`.
+
+## Running locally
+
+Prerequisites: `bash`, `curl`, `go`, `tar`. On first use the Traefik binary is
+fetched and the mock is compiled into `.cache/`. That cache is reused across
+local runs; CI runs on fresh runners, so both are recreated on every CI run.
+
+```bash
+# one scenario
+make e2e_mock_stream-mode
+# or directly
+./tests/e2e/mock/scenarios/stream-mode/run.sh
+
+# the whole suite
+make e2e_mock
+```
+
+## Layout
+
+```
+mock/
+  lib/
+    common.sh     # stack lifecycle, Traefik download, mock build, assertions, admin client
+    traefik.yml   # static Traefik config (shared by all scenarios)
+  mocklapi/
+    go.mod        # nested module — kept out of the plugin's build/lint/vendor
+    main.go       # mock LAPI + AppSec stand-in + backend
+  scenarios/
+    <name>/
+      dynamic.yml # Traefik dynamic config (router + bouncer middleware + backend)
+      run.sh      # assertions for the scenario
+      *.html      # optional fixtures (ban / captcha templates)
+```
+
+`dynamic.yml` uses placeholders (`@@APIKEY@@`, `@@LAPI_HOST@@`,
+`@@BACKEND_URL@@`, `@@SCENARIO_DIR@@`) that `common.sh` substitutes at runtime.
+
+## Adding a scenario
+
+1. Create `scenarios/<name>/dynamic.yml` and `run.sh` (copy `stream-mode/` as a
+   template).
+2. In `run.sh`, define a `body` function with the assertions and call
+   `run_scenario "<name>" "$HERE" body`.
+3. Drive decisions with `lapi_add_decision <ip> [type] [duration]` and
+   `lapi_delete_decision <ip>`.
+4. Add `<name>` to `E2E_MOCK_SCENARIOS` in the `Makefile`.

tests/e2e/mock/lib/common.sh

@@ -0,0 +1,248 @@
+#!/usr/bin/env bash
+# Shared helpers for the binary (mock) e2e suite.
+#
+# Unlike the Docker suite under tests/e2e/scenarios, this one runs Traefik as a
+# downloaded binary and replaces Crowdsec with a small HTTP mock (the mocklapi
+# Go command). It validates the plugin's own behaviour (modes, cache, trusted
+# IPs, ban / captcha rendering, AppSec wiring) — not the accuracy of Crowdsec's
+# detection or its WAF engine, which the mock only stands in for.
+#
+# Dependencies: bash, curl, go, tar. The Traefik binary is downloaded and the
+# mock is compiled into .cache/ on first use. That cache persists across local
+# runs; CI runs on fresh runners, so both are recreated on every CI run.
+
+set -euo pipefail
+
+# Pinned to match the Docker suite (tests/e2e/scenarios/*/docker-compose.yml).
+TRAEFIK_VERSION="${TRAEFIK_VERSION:-v3.7.1}"
+
+WEB_PORT="${WEB_PORT:-8000}"
+LAPI_PORT="${LAPI_PORT:-8090}"
+BACKEND_PORT="${BACKEND_PORT:-8091}"
+APPSEC_PORT="${APPSEC_PORT:-8092}"
+LAPI_KEY="${LAPI_KEY:-e2e-mock-key}"
+
+MOCK_LIB_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$MOCK_LIB_DIR/../../../.." && pwd)"
+CACHE_DIR="$MOCK_LIB_DIR/../.cache"
+
+# Populated by start_stack / run_scenario, consumed by the EXIT trap.
+WORKDIR=""
+TRAEFIK_PID=""
+MOCK_PID=""
+SCENARIO_NAME=""
+SCENARIO_LOG=""
+
+# Resolve (and cache) the Traefik binary for this host, echoing its path.
+ensure_traefik() {
+  local bin="$CACHE_DIR/traefik-$TRAEFIK_VERSION"
+  if [[ -x "$bin" ]]; then
+    echo "$bin"
+    return 0
+  fi
+  mkdir -p "$CACHE_DIR"
+  local os arch
+  case "$(uname -s)" in
+    Linux) os=linux ;;
+    Darwin) os=darwin ;;
+    *) echo "ensure_traefik: unsupported OS $(uname -s)" >&2; return 1 ;;
+  esac
+  case "$(uname -m)" in
+    x86_64 | amd64) arch=amd64 ;;
+    aarch64 | arm64) arch=arm64 ;;
+    *) echo "ensure_traefik: unsupported arch $(uname -m)" >&2; return 1 ;;
+  esac
+  local url="https://github.com/traefik/traefik/releases/download/${TRAEFIK_VERSION}/traefik_${TRAEFIK_VERSION}_${os}_${arch}.tar.gz"
+  echo "ensure_traefik: downloading $url" >&2
+  local tmp
+  tmp="$(mktemp -d)"
+  curl -sSfL "$url" -o "$tmp/traefik.tar.gz"
+  tar -xzf "$tmp/traefik.tar.gz" -C "$tmp" traefik
+  mv "$tmp/traefik" "$bin"
+  chmod +x "$bin"
+  rm -rf "$tmp"
+  echo "$bin"
+}
+
+# Build (and cache) the mock LAPI binary, echoing its path. Go's build cache
+# makes the rebuild near-instant after the first run.
+ensure_mock() {
+  local bin="$CACHE_DIR/mocklapi"
+  mkdir -p "$CACHE_DIR"
+  ( cd "$MOCK_LIB_DIR/../mocklapi" && go build -o "$bin" . ) >&2
+  echo "$bin"
+}
+
+# Poll a URL until it returns the expected status code, or fail.
+# Usage: wait_for_status URL CODE [TIMEOUT_SECONDS] [curl args...]
+wait_for_status() {
+  local url="$1" expected="$2" timeout="${3:-30}"
+  shift 3 || true
+  local elapsed=0 got=""
+  while (( elapsed < timeout )); do
+    got=$(curl -s -o /dev/null -w '%{http_code}' "$@" "$url" || true)
+    if [[ "$got" == "$expected" ]]; then
+      return 0
+    fi
+    sleep 1
+    # Note: `((elapsed++))` returns exit 1 when elapsed is 0, which trips set -e.
+    elapsed=$((elapsed + 1))
+  done
+  echo "wait_for_status: $url expected $expected, last seen ${got:-<none>}" >&2
+  return 1
+}
+
+# Poll a URL until its body contains a substring, or fail. Used when the status
+# code alone can't tell the states apart (e.g. captcha page vs backend, both 200).
+# Usage: wait_for_body_contains URL NEEDLE [TIMEOUT_SECONDS] [curl args...]
+wait_for_body_contains() {
+  local url="$1" needle="$2" timeout="${3:-30}"
+  shift 3 || true
+  local elapsed=0 body=""
+  while (( elapsed < timeout )); do
+    body=$(curl -s "$@" "$url" || true)
+    if grep -q "$needle" <<<"$body"; then
+      return 0
+    fi
+    sleep 1
+    elapsed=$((elapsed + 1))
+  done
+  echo "wait_for_body_contains: $url did not contain \"$needle\" within ${timeout}s" >&2
+  return 1
+}
+
+# Assert a single curl returns the expected status code.
+# Usage: assert_status URL CODE [curl args...]
+assert_status() {
+  local url="$1" expected="$2"
+  shift 2 || true
+  local got
+  got=$(curl -s -o /dev/null -w '%{http_code}' "$@" "$url")
+  if [[ "$got" != "$expected" ]]; then
+    echo "assert_status: $url expected $expected, got $got" >&2
+    return 1
+  fi
+}
+
+# Assert a response header matches a value (case-insensitive name).
+# Usage: assert_header URL HEADER VALUE [curl args...]
+assert_header() {
+  local url="$1" header="$2" expected="$3"
+  shift 3 || true
+  local got
+  got=$(curl -s -D - -o /dev/null "$@" "$url" | tr -d '\r' \
+    | awk -v h="${header,,}" -F': ' 'tolower($1) == h { print $2; exit }')
+  if [[ "$got" != "$expected" ]]; then
+    echo "assert_header: $url header $header expected \"$expected\", got \"$got\"" >&2
+    return 1
+  fi
+}
+
+# Assert a response body contains a substring.
+# Usage: assert_body_contains URL NEEDLE [curl args...]
+assert_body_contains() {
+  local url="$1" needle="$2"
+  shift 2 || true
+  local body
+  body=$(curl -s "$@" "$url")
+  if ! grep -q "$needle" <<<"$body"; then
+    echo "assert_body_contains: $url expected to contain \"$needle\", got:" >&2
+    echo "$body" >&2
+    return 1
+  fi
+}
+
+# --- mock admin client -------------------------------------------------------
+
+lapi_add_decision() {
+  local ip="$1" type="${2:-ban}" duration="${3:-4h}"
+  curl -sS -X POST "http://127.0.0.1:${LAPI_PORT}/admin/decisions?ip=${ip}&type=${type}&duration=${duration}" >/dev/null
+}
+
+lapi_delete_decision() {
+  local ip="$1"
+  curl -sS -X DELETE "http://127.0.0.1:${LAPI_PORT}/admin/decisions?ip=${ip}" >/dev/null
+}
+
+# --- stack lifecycle ---------------------------------------------------------
+
+# start_stack SCENARIO_DIR
+# Spins up the mock + Traefik (with the scenario's dynamic.yml) and waits ready.
+start_stack() {
+  local scenario_dir="$1"
+  local traefik_bin mock_bin
+  traefik_bin="$(ensure_traefik)"
+  mock_bin="$(ensure_mock)"
+
+  WORKDIR="$(mktemp -d)"
+  # Expose the plugin source where Traefik's localPlugins loader expects it.
+  mkdir -p "$WORKDIR/plugins-local/src/github.com/maxlerebourg"
+  ln -s "$REPO_ROOT" "$WORKDIR/plugins-local/src/github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
+
+  cp "$MOCK_LIB_DIR/traefik.yml" "$WORKDIR/traefik.yml"
+
+  # Render the scenario's dynamic config with the live ports / key / paths.
+  sed \
+    -e "s|@@APIKEY@@|${LAPI_KEY}|g" \
+    -e "s|@@LAPI_HOST@@|127.0.0.1:${LAPI_PORT}|g" \
+    -e "s|@@APPSEC_HOST@@|127.0.0.1:${APPSEC_PORT}|g" \
+    -e "s|@@BACKEND_URL@@|http://127.0.0.1:${BACKEND_PORT}|g" \
+    -e "s|@@SCENARIO_DIR@@|${scenario_dir}|g" \
+    "$scenario_dir/dynamic.yml" > "$WORKDIR/dynamic.yml"
+
+  "$mock_bin" \
+    --lapi-addr "127.0.0.1:${LAPI_PORT}" \
+    --backend-addr "127.0.0.1:${BACKEND_PORT}" \
+    --appsec-addr "127.0.0.1:${APPSEC_PORT}" >"$WORKDIR/mock.log" 2>&1 &
+  MOCK_PID=$!
+
+  ( cd "$WORKDIR" && exec "$traefik_bin" --configfile=traefik.yml ) >"$WORKDIR/traefik.log" 2>&1 &
+  TRAEFIK_PID=$!
+
+  wait_for_status "http://127.0.0.1:${LAPI_PORT}/health" 200 30
+  # AppSec stand-in: a bare GET carries no "rpc2" URI, so it answers 200 (allow).
+  wait_for_status "http://127.0.0.1:${APPSEC_PORT}/" 200 30
+  # /ping is served by Traefik itself once it is up (plugin compilation included).
+  wait_for_status "http://127.0.0.1:${WEB_PORT}/ping" 200 60
+}
+
+stop_stack() {
+  [[ -n "$TRAEFIK_PID" ]] && kill "$TRAEFIK_PID" 2>/dev/null || true
+  [[ -n "$MOCK_PID" ]] && kill "$MOCK_PID" 2>/dev/null || true
+  [[ -n "$TRAEFIK_PID" ]] && wait "$TRAEFIK_PID" 2>/dev/null || true
+  [[ -n "$MOCK_PID" ]] && wait "$MOCK_PID" 2>/dev/null || true
+  [[ -n "$WORKDIR" && -d "$WORKDIR" ]] && rm -rf "$WORKDIR" || true
+}
+
+dump_diagnostics() {
+  echo "=== traefik.log ==="
+  cat "$WORKDIR/traefik.log" 2>/dev/null || true
+  echo "=== mock.log ==="
+  cat "$WORKDIR/mock.log" 2>/dev/null || true
+}
+
+# EXIT trap: runs after the scenario body (or after a failed assertion under
+# `set -e`), so it relies only on globals, never on run_scenario's locals.
+_scenario_cleanup() {
+  local rc=$?
+  if (( rc != 0 )); then
+    dump_diagnostics > "$SCENARIO_LOG" 2>&1 || true
+    echo "[$SCENARIO_NAME] failed. Logs written to $SCENARIO_LOG" >&2
+  fi
+  stop_stack
+  exit $rc
+}
+
+# run_scenario SCENARIO_NAME SCENARIO_DIR BODY_FN
+# Wraps lifecycle + diagnostics so each run.sh stays declarative.
+run_scenario() {
+  SCENARIO_NAME="$1"
+  local dir="$2" body="$3"
+  SCENARIO_LOG="/tmp/e2e-mock-${SCENARIO_NAME}.log"
+  trap _scenario_cleanup EXIT
+
+  echo "[$SCENARIO_NAME] starting binary stack (Traefik + mock LAPI)..."
+  start_stack "$dir"
+  "$body"
+  echo "[$SCENARIO_NAME] OK"
+}

tests/e2e/mock/lib/traefik.yml

@@ -0,0 +1,28 @@
+# Static Traefik configuration for the binary e2e suite.
+# The dynamic part (router + bouncer middleware + backend service) lives in
+# dynamic.yml, generated per scenario by common.sh.
+entryPoints:
+  web:
+    address: ":8000"
+    forwardedHeaders:
+      # The test's curl sets X-Forwarded-For; preserve it through the proxy.
+      insecure: true
+
+log:
+  level: INFO
+
+accessLog: {}
+
+# /ping on the web entrypoint is the readiness probe — no dashboard/API needed.
+ping:
+  entryPoint: web
+
+providers:
+  file:
+    filename: dynamic.yml
+    watch: false
+
+experimental:
+  localPlugins:
+    bouncer:
+      moduleName: github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin

tests/e2e/mock/mocklapi/go.mod

@@ -0,0 +1,6 @@
+// Standalone module so this test helper stays out of the plugin module:
+// it is excluded from the plugin's `go build ./...`, `go test ./...`,
+// golangci-lint and `go mod vendor`. Stdlib only — no dependencies.
+module mocklapi
+
+go 1.22

tests/e2e/mock/mocklapi/main.go

@@ -0,0 +1,135 @@
+// Command mocklapi is a minimal Crowdsec LAPI stand-in for the binary e2e
+// suite. It answers only the few LAPI routes the plugin calls — live/none
+// decision lookups, the stream poll and the usage-metrics push — and lets the
+// test drive decisions through /admin instead of `cscli`. It also serves the
+// stub upstream that Traefik proxies allowed requests to.
+//
+// It is NOT a Crowdsec/AppSec conformance harness — the real WAF engine (OWASP
+// CRS, virtual patching) is out of scope. The AppSec endpoint here emulates a
+// single deterministic rule so the suite can exercise the plugin's AppSec
+// wiring (header forwarding, allow/block handling) end to end. See the README.
+package main
+
+import (
+	"encoding/json"
+	"flag"
+	"log"
+	"net/http"
+	"strings"
+	"sync"
+)
+
+// Decision is the subset of a LAPI decision the plugin actually reads.
+type Decision struct {
+	Value    string `json:"value"`
+	Type     string `json:"type"`
+	Duration string `json:"duration"`
+}
+
+var (
+	mu      sync.Mutex
+	active  = map[string]Decision{} // ip -> decision currently in force
+	deleted = map[string]Decision{} // ip -> decision to report in the stream "deleted" list
+)
+
+func writeJSON(w http.ResponseWriter, v any) {
+	w.Header().Set("Content-Type", "application/json")
+	_ = json.NewEncoder(w).Encode(v)
+}
+
+func list(m map[string]Decision) []Decision {
+	out := make([]Decision, 0, len(m))
+	for _, d := range m {
+		out = append(out, d)
+	}
+	return out
+}
+
+func main() {
+	lapiAddr := flag.String("lapi-addr", "127.0.0.1:8090", "address for the LAPI mock")
+	// The stub upstream Traefik proxies allowed requests to — the binary-suite
+	// equivalent of the traefik/whoami container. Not AppSec.
+	backendAddr := flag.String("backend-addr", "127.0.0.1:8091", "address for the stub upstream service")
+	// AppSec WAF stand-in (the real engine listens on :7422). Not a CRS engine.
+	appsecAddr := flag.String("appsec-addr", "127.0.0.1:8092", "address for the AppSec mock")
+	flag.Parse()
+
+	go func() {
+		log.Fatal(http.ListenAndServe(*backendAddr, http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+			_, _ = w.Write([]byte("E2E_BACKEND_OK\n"))
+		})))
+	}()
+
+	// AppSec mock: the plugin forwards the request metadata in X-Crowdsec-Appsec-*
+	// headers and reads our status — 200 allows, 403 blocks. We emulate one
+	// deterministic virtual-patching rule (block any URI containing "rpc2", the
+	// exact probe from examples/appsec-enabled) so the plugin's AppSec path is
+	// exercised without standing up the real WAF.
+	go func() {
+		log.Fatal(http.ListenAndServe(*appsecAddr, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			if strings.Contains(r.Header.Get("X-Crowdsec-Appsec-Uri"), "rpc2") {
+				w.WriteHeader(http.StatusForbidden)
+			}
+		})))
+	}()
+
+	mux := http.NewServeMux()
+
+	// Readiness probe for the test harness (empty body, 200).
+	mux.HandleFunc("/health", func(http.ResponseWriter, *http.Request) {})
+
+	// live / none mode: the plugin asks about one IP and expects a decision
+	// array, or the literal `null` when there is none.
+	mux.HandleFunc("/v1/decisions", func(w http.ResponseWriter, r *http.Request) {
+		mu.Lock()
+		defer mu.Unlock()
+		if d, ok := active[r.URL.Query().Get("ip")]; ok {
+			writeJSON(w, []Decision{d})
+			return
+		}
+		_, _ = w.Write([]byte("null"))
+	})
+
+	// stream mode: report the whole active set as "new" and anything removed as
+	// "deleted". Re-sending the same on every poll is harmless — the plugin just
+	// re-adds to / re-deletes from its cache.
+	mux.HandleFunc("/v1/decisions/stream", func(w http.ResponseWriter, _ *http.Request) {
+		mu.Lock()
+		defer mu.Unlock()
+		writeJSON(w, map[string][]Decision{"new": list(active), "deleted": list(deleted)})
+	})
+
+	// usage-metrics push: accept and ignore.
+	mux.HandleFunc("/v1/usage-metrics", func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusCreated)
+	})
+
+	// Test control plane: add / remove decisions instead of cscli.
+	mux.HandleFunc("/admin/decisions", func(_ http.ResponseWriter, r *http.Request) {
+		q := r.URL.Query()
+		ip := q.Get("ip")
+		mu.Lock()
+		defer mu.Unlock()
+		switch r.Method {
+		case http.MethodPost:
+			dtype := q.Get("type")
+			if dtype == "" {
+				dtype = "ban"
+			}
+			duration := q.Get("duration")
+			if duration == "" {
+				duration = "4h"
+			}
+			active[ip] = Decision{Value: ip, Type: dtype, Duration: duration}
+			delete(deleted, ip)
+		case http.MethodDelete:
+			if d, ok := active[ip]; ok {
+				deleted[ip] = d
+				delete(active, ip)
+			}
+		}
+	})
+
+	log.Printf("mocklapi: LAPI on %s, backend on %s, appsec on %s", *lapiAddr, *backendAddr, *appsecAddr)
+	log.Fatal(http.ListenAndServe(*lapiAddr, mux))
+}

tests/e2e/mock/scenarios/appsec/dynamic.yml

@@ -0,0 +1,29 @@
+http:
+  routers:
+    r:
+      rule: "PathPrefix(`/foo`)"
+      entryPoints:
+        - web
+      service: backend
+      middlewares:
+        - bouncer
+  services:
+    backend:
+      loadBalancer:
+        servers:
+          - url: "@@BACKEND_URL@@"
+  middlewares:
+    bouncer:
+      plugin:
+        bouncer:
+          enabled: "true"
+          # IP bouncing disabled — this scenario exercises AppSec only.
+          crowdsecMode: none
+          crowdsecLapiScheme: http
+          crowdsecLapiHost: "@@LAPI_HOST@@"
+          crowdsecLapiKey: "@@APIKEY@@"
+          crowdsecAppsecEnabled: "true"
+          crowdsecAppsecScheme: http
+          crowdsecAppsecHost: "@@APPSEC_HOST@@"
+          forwardedHeadersTrustedIps:
+            - "127.0.0.1/32"

tests/e2e/mock/scenarios/appsec/run.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+HERE="$(cd "$(dirname "$0")" && pwd)"
+# shellcheck source=../../lib/common.sh
+source "$HERE/../../lib/common.sh"
+
+SCENARIO=appsec
+
+# AppSec wiring check: the plugin forwards each request to the AppSec engine and
+# enforces its verdict. The mock emulates one virtual-patching rule (block any
+# URI containing "rpc2"), mirroring examples/appsec-enabled. This proves the
+# plugin's AppSec path end to end (header forwarding + allow/block handling); it
+# does not test the real WAF's detection accuracy.
+body() {
+  echo "[$SCENARIO] benign request must pass (AppSec allows)"
+  assert_status "http://127.0.0.1:${WEB_PORT}/foo" 200 -H "X-Forwarded-For: 1.2.3.4"
+
+  echo "[$SCENARIO] request whose URI contains 'rpc2' must be blocked (AppSec 403)"
+  assert_status "http://127.0.0.1:${WEB_PORT}/foo/rpc2" 403 -H "X-Forwarded-For: 1.2.3.4"
+}
+
+run_scenario "$SCENARIO" "$HERE" body

tests/e2e/mock/scenarios/captcha/captcha.html

@@ -0,0 +1,9 @@
+<!DOCTYPE html>
+<html lang="en">
+<head><meta charset="utf-8"><title>E2E captcha marker</title></head>
+<body>
+<h1 id="e2e-captcha-marker">E2E_CAPTCHA_PAGE_MARKER</h1>
+<script src="{{ .FrontendJS }}"></script>
+<div class="{{ .FrontendKey }}" data-sitekey="{{ .SiteKey }}"></div>
+</body>
+</html>

tests/e2e/mock/scenarios/captcha/dynamic.yml

@@ -0,0 +1,33 @@
+http:
+  routers:
+    r:
+      rule: "PathPrefix(`/foo`)"
+      entryPoints:
+        - web
+      service: backend
+      middlewares:
+        - bouncer
+  services:
+    backend:
+      loadBalancer:
+        servers:
+          - url: "@@BACKEND_URL@@"
+  middlewares:
+    bouncer:
+      plugin:
+        bouncer:
+          enabled: "true"
+          crowdsecMode: stream
+          updateIntervalSeconds: "2"
+          crowdsecLapiScheme: http
+          crowdsecLapiHost: "@@LAPI_HOST@@"
+          crowdsecLapiKey: "@@APIKEY@@"
+          forwardedHeadersTrustedIps:
+            - "127.0.0.1/32"
+          captchaProvider: turnstile
+          # Cloudflare Turnstile public test keys: render a valid widget without
+          # contacting a real API key.
+          captchaSiteKey: "1x00000000000000000000AA"
+          captchaSecretKey: "1x0000000000000000000000000000000AA"
+          captchaHtmlFilePath: "@@SCENARIO_DIR@@/captcha.html"
+          captchaGracePeriodSeconds: "10"

tests/e2e/mock/scenarios/captcha/run.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+HERE="$(cd "$(dirname "$0")" && pwd)"
+# shellcheck source=../../lib/common.sh
+source "$HERE/../../lib/common.sh"
+
+SCENARIO=captcha
+
+body() {
+  echo "[$SCENARIO] adding captcha decision for 1.2.3.4"
+  lapi_add_decision 1.2.3.4 captcha 5m
+
+  # Status stays 200 before/after (captcha page vs backend), so gate on the body
+  # marker appearing once the captcha decision has been polled.
+  echo "[$SCENARIO] captcha page must be served once the decision is polled (200 + marker)"
+  wait_for_body_contains "http://127.0.0.1:${WEB_PORT}/foo" "E2E_CAPTCHA_PAGE_MARKER" 15 -H "X-Forwarded-For: 1.2.3.4"
+
+  echo "[$SCENARIO] captcha response is HTTP 200 (the captcha page itself, not a 403)"
+  assert_status "http://127.0.0.1:${WEB_PORT}/foo" 200 -H "X-Forwarded-For: 1.2.3.4"
+
+  echo "[$SCENARIO] non-flagged IP must still pass through to the backend"
+  assert_status "http://127.0.0.1:${WEB_PORT}/foo" 200 -H "X-Forwarded-For: 5.6.7.8"
+}
+
+run_scenario "$SCENARIO" "$HERE" body

tests/e2e/mock/scenarios/custom-ban-page/ban.html

@@ -0,0 +1,8 @@
+<!DOCTYPE html>
+<html lang="en">
+<head><meta charset="utf-8"><title>E2E ban marker</title></head>
+<body>
+<h1 id="e2e-ban-marker">E2E_CUSTOM_BAN_PAGE_MARKER</h1>
+<p>IP: {{ .ClientIP }} reason: {{ .RemediationReason }}</p>
+</body>
+</html>

tests/e2e/mock/scenarios/custom-ban-page/dynamic.yml

@@ -0,0 +1,28 @@
+http:
+  routers:
+    r:
+      rule: "PathPrefix(`/foo`)"
+      entryPoints:
+        - web
+      service: backend
+      middlewares:
+        - bouncer
+  services:
+    backend:
+      loadBalancer:
+        servers:
+          - url: "@@BACKEND_URL@@"
+  middlewares:
+    bouncer:
+      plugin:
+        bouncer:
+          enabled: "true"
+          crowdsecMode: stream
+          updateIntervalSeconds: "2"
+          crowdsecLapiScheme: http
+          crowdsecLapiHost: "@@LAPI_HOST@@"
+          crowdsecLapiKey: "@@APIKEY@@"
+          forwardedHeadersTrustedIps:
+            - "127.0.0.1/32"
+          banHtmlFilePath: "@@SCENARIO_DIR@@/ban.html"
+          remediationHeadersCustomName: "X-E2E-Remediation"

tests/e2e/mock/scenarios/custom-ban-page/run.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+HERE="$(cd "$(dirname "$0")" && pwd)"
+# shellcheck source=../../lib/common.sh
+source "$HERE/../../lib/common.sh"
+
+SCENARIO=custom-ban-page
+
+body() {
+  echo "[$SCENARIO] adding ban decision"
+  lapi_add_decision 1.2.3.4 ban 5m
+
+  echo "[$SCENARIO] banned response becomes 403 once the next stream poll lands"
+  wait_for_status "http://127.0.0.1:${WEB_PORT}/foo" 403 15 -H "X-Forwarded-For: 1.2.3.4"
+
+  echo "[$SCENARIO] banned response Content-Type is HTML"
+  assert_header "http://127.0.0.1:${WEB_PORT}/foo" Content-Type "text/html; charset=utf-8" -H "X-Forwarded-For: 1.2.3.4"
+
+  echo "[$SCENARIO] banned response body contains the custom marker"
+  assert_body_contains "http://127.0.0.1:${WEB_PORT}/foo" "E2E_CUSTOM_BAN_PAGE_MARKER" -H "X-Forwarded-For: 1.2.3.4"
+
+  echo "[$SCENARIO] banned response carries the custom remediation header (remediationHeadersCustomName)"
+  assert_header "http://127.0.0.1:${WEB_PORT}/foo" X-E2E-Remediation "ban" -H "X-Forwarded-For: 1.2.3.4"
+}
+
+run_scenario "$SCENARIO" "$HERE" body

tests/e2e/mock/scenarios/live-mode/dynamic.yml

@@ -0,0 +1,26 @@
+http:
+  routers:
+    r:
+      rule: "PathPrefix(`/foo`)"
+      entryPoints:
+        - web
+      service: backend
+      middlewares:
+        - bouncer
+  services:
+    backend:
+      loadBalancer:
+        servers:
+          - url: "@@BACKEND_URL@@"
+  middlewares:
+    bouncer:
+      plugin:
+        bouncer:
+          enabled: "true"
+          crowdsecMode: live
+          defaultDecisionSeconds: "2"
+          crowdsecLapiScheme: http
+          crowdsecLapiHost: "@@LAPI_HOST@@"
+          crowdsecLapiKey: "@@APIKEY@@"
+          forwardedHeadersTrustedIps:
+            - "127.0.0.1/32"

tests/e2e/mock/scenarios/live-mode/run.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+HERE="$(cd "$(dirname "$0")" && pwd)"
+# shellcheck source=../../lib/common.sh
+source "$HERE/../../lib/common.sh"
+
+SCENARIO=live-mode
+
+body() {
+  echo "[$SCENARIO] no decision -> first hit queries LAPI, returns 200, caches 'allowed' for 2s"
+  assert_status "http://127.0.0.1:${WEB_PORT}/foo" 200 -H "X-Forwarded-For: 1.2.3.4"
+
+  echo "[$SCENARIO] adding ban decision for 1.2.3.4"
+  lapi_add_decision 1.2.3.4 ban 5m
+
+  # Stays 200 until the cached 'allowed' (defaultDecisionSeconds) expires, then
+  # the re-query sees the ban — poll instead of guessing the cache TTL.
+  echo "[$SCENARIO] hit must turn 403 once the cached 'allowed' expires and LAPI is re-queried"
+  wait_for_status "http://127.0.0.1:${WEB_PORT}/foo" 403 15 -H "X-Forwarded-For: 1.2.3.4"
+
+  echo "[$SCENARIO] another non-banned IP must still pass"
+  assert_status "http://127.0.0.1:${WEB_PORT}/foo" 200 -H "X-Forwarded-For: 5.6.7.8"
+}
+
+run_scenario "$SCENARIO" "$HERE" body

tests/e2e/mock/scenarios/none-mode/dynamic.yml

@@ -0,0 +1,25 @@
+http:
+  routers:
+    r:
+      rule: "PathPrefix(`/foo`)"
+      entryPoints:
+        - web
+      service: backend
+      middlewares:
+        - bouncer
+  services:
+    backend:
+      loadBalancer:
+        servers:
+          - url: "@@BACKEND_URL@@"
+  middlewares:
+    bouncer:
+      plugin:
+        bouncer:
+          enabled: "true"
+          crowdsecMode: none
+          crowdsecLapiScheme: http
+          crowdsecLapiHost: "@@LAPI_HOST@@"
+          crowdsecLapiKey: "@@APIKEY@@"
+          forwardedHeadersTrustedIps:
+            - "127.0.0.1/32"

tests/e2e/mock/scenarios/none-mode/run.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+HERE="$(cd "$(dirname "$0")" && pwd)"
+# shellcheck source=../../lib/common.sh
+source "$HERE/../../lib/common.sh"
+
+SCENARIO=none-mode
+
+body() {
+  echo "[$SCENARIO] no decision -> request passes (LAPI queried per request)"
+  assert_status "http://127.0.0.1:${WEB_PORT}/foo" 200 -H "X-Forwarded-For: 1.2.3.4"
+
+  echo "[$SCENARIO] adding ban decision for 1.2.3.4"
+  lapi_add_decision 1.2.3.4 ban 5m
+
+  echo "[$SCENARIO] none mode has no cache -> next request must be blocked immediately"
+  assert_status "http://127.0.0.1:${WEB_PORT}/foo" 403 -H "X-Forwarded-For: 1.2.3.4"
+
+  echo "[$SCENARIO] deleting decision"
+  lapi_delete_decision 1.2.3.4
+
+  echo "[$SCENARIO] previously banned IP must pass again immediately"
+  assert_status "http://127.0.0.1:${WEB_PORT}/foo" 200 -H "X-Forwarded-For: 1.2.3.4"
+}
+
+run_scenario "$SCENARIO" "$HERE" body

tests/e2e/mock/scenarios/stream-mode/dynamic.yml

@@ -0,0 +1,26 @@
+http:
+  routers:
+    r:
+      rule: "PathPrefix(`/foo`)"
+      entryPoints:
+        - web
+      service: backend
+      middlewares:
+        - bouncer
+  services:
+    backend:
+      loadBalancer:
+        servers:
+          - url: "@@BACKEND_URL@@"
+  middlewares:
+    bouncer:
+      plugin:
+        bouncer:
+          enabled: "true"
+          crowdsecMode: stream
+          updateIntervalSeconds: "2"
+          crowdsecLapiScheme: http
+          crowdsecLapiHost: "@@LAPI_HOST@@"
+          crowdsecLapiKey: "@@APIKEY@@"
+          forwardedHeadersTrustedIps:
+            - "127.0.0.1/32"

tests/e2e/mock/scenarios/stream-mode/run.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+HERE="$(cd "$(dirname "$0")" && pwd)"
+# shellcheck source=../../lib/common.sh
+source "$HERE/../../lib/common.sh"
+
+SCENARIO=stream-mode
+
+body() {
+  echo "[$SCENARIO] no decision yet -> request allowed"
+  assert_status "http://127.0.0.1:${WEB_PORT}/foo" 200 -H "X-Forwarded-For: 1.2.3.4"
+
+  echo "[$SCENARIO] adding ban decision for 1.2.3.4"
+  lapi_add_decision 1.2.3.4 ban 5m
+
+  echo "[$SCENARIO] banned IP must be blocked once the next stream poll lands (HTTP 403)"
+  wait_for_status "http://127.0.0.1:${WEB_PORT}/foo" 403 15 -H "X-Forwarded-For: 1.2.3.4"
+
+  echo "[$SCENARIO] non-banned IP must still pass (HTTP 200)"
+  assert_status "http://127.0.0.1:${WEB_PORT}/foo" 200 -H "X-Forwarded-For: 5.6.7.8"
+
+  echo "[$SCENARIO] deleting ban decision"
+  lapi_delete_decision 1.2.3.4
+
+  echo "[$SCENARIO] previously banned IP must pass again once the deletion is polled"
+  wait_for_status "http://127.0.0.1:${WEB_PORT}/foo" 200 15 -H "X-Forwarded-For: 1.2.3.4"
+}
+
+run_scenario "$SCENARIO" "$HERE" body

tests/e2e/mock/scenarios/trusted-ips/dynamic.yml

@@ -0,0 +1,28 @@
+http:
+  routers:
+    r:
+      rule: "PathPrefix(`/foo`)"
+      entryPoints:
+        - web
+      service: backend
+      middlewares:
+        - bouncer
+  services:
+    backend:
+      loadBalancer:
+        servers:
+          - url: "@@BACKEND_URL@@"
+  middlewares:
+    bouncer:
+      plugin:
+        bouncer:
+          enabled: "true"
+          crowdsecMode: stream
+          updateIntervalSeconds: "2"
+          crowdsecLapiScheme: http
+          crowdsecLapiHost: "@@LAPI_HOST@@"
+          crowdsecLapiKey: "@@APIKEY@@"
+          forwardedHeadersTrustedIps:
+            - "127.0.0.1/32"
+          clientTrustedIps:
+            - "1.2.3.4/32"

tests/e2e/mock/scenarios/trusted-ips/run.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+HERE="$(cd "$(dirname "$0")" && pwd)"
+# shellcheck source=../../lib/common.sh
+source "$HERE/../../lib/common.sh"
+
+SCENARIO=trusted-ips
+
+body() {
+  echo "[$SCENARIO] banning the trusted IP 1.2.3.4 and an untrusted IP 5.6.7.8"
+  lapi_add_decision 1.2.3.4 ban 5m
+  lapi_add_decision 5.6.7.8 ban 5m
+
+  # The untrusted IP turning 403 is our signal that the bans have been polled;
+  # it also doubles as the control proving the bouncer is active.
+  echo "[$SCENARIO] untrusted banned IP must be blocked once the bans are polled (HTTP 403)"
+  wait_for_status "http://127.0.0.1:${WEB_PORT}/foo" 403 15 -H "X-Forwarded-For: 5.6.7.8"
+
+  echo "[$SCENARIO] trusted IP must bypass the bouncer even though it is banned"
+  assert_status "http://127.0.0.1:${WEB_PORT}/foo" 200 -H "X-Forwarded-For: 1.2.3.4"
+}
+
+run_scenario "$SCENARIO" "$HERE" body

vendor/github.com/maxlerebourg/simpleredis/simpleredis.go

@@ -117,7 +117,7 @@ func (sr *SimpleRedis) askRedis(cmd redisCmd, channel chan redisCmd) redisCmd {
 				str := string(read)
 				if strings.Contains(str, "-NOAUTH") {
 					return redisCmd{Error: fmt.Errorf(RedisNoAuth)}
-				} else if str != "$1" {
+				} else if str == "$-1" {
 					return redisCmd{Error: fmt.Errorf(RedisMiss)}
 				}
 				read, _ = reader.ReadLineBytes()

vendor/modules.txt

@@ -1,6 +1,6 @@
 # github.com/leprosus/golang-ttl-map v1.1.7
 ## explicit; go 1.15
 github.com/leprosus/golang-ttl-map
-# github.com/maxlerebourg/simpleredis v1.0.11
+# github.com/maxlerebourg/simpleredis v1.0.12
 ## explicit; go 1.22
 github.com/maxlerebourg/simpleredis

version.go

@@ -0,0 +1,4 @@
+package crowdsec_bouncer_traefik_plugin //nolint:revive,stylecheck
+
+// pluginVersion is updated automatically by the release workflow.
+var pluginVersion = "1.6.X" //nolint:gochecknoglobals