✨ Add env for RemediationStatusCode (#250)

* ✨ Add env for defaultStatusCode

* 📝 doc

* ✨change name of the parameter

* 🔧 Add config check

* fix lint

.github/dependabot.yml

@@ -0,0 +1,24 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  # Maintain dependencies for Go
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+
+  # Maintain dependencies for build tools
+  - package-ecosystem: "gomod"
+    directory: "/tools"
+    schedule:
+      interval: "weekly"
+
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/go-cross.yml

@@ -1,47 +0,0 @@
-name: Go Matrix
-on: [push, pull_request]
-
-jobs:
-
-  cross:
-    name: Go
-    runs-on: ${{ matrix.os }}
-    env:
-      CGO_ENABLED: 0
-
-    strategy:
-      matrix:
-        go-version: [ 1.19, 1.x ]
-        os: [ubuntu-latest, macos-latest, windows-latest]
-
-    steps:
-      # https://github.com/marketplace/actions/setup-go-environment
-      - name: Set up Go ${{ matrix.go-version }}
-        uses: actions/setup-go@v2
-        with:
-          go-version: ${{ matrix.go-version }}
-
-      # https://github.com/marketplace/actions/checkout
-      - name: Checkout code
-        uses: actions/checkout@v2
-
-      # https://github.com/marketplace/actions/cache
-      - name: Cache Go modules
-        uses: actions/cache@v2
-        with:
-          # In order:
-          # * Module download cache
-          # * Build cache (Linux)
-          # * Build cache (Mac)
-          # * Build cache (Windows)
-          path: |
-            ~/go/pkg/mod
-            ~/.cache/go-build
-            ~/Library/Caches/go-build
-            %LocalAppData%\go-build
-          key: ${{ runner.os }}-${{ matrix.go-version }}-go-${{ hashFiles('**/go.sum') }}
-          restore-keys: |
-            ${{ runner.os }}-${{ matrix.go-version }}-go-
-
-      - name: Test
-        run: go test -v -cover ./...

.github/workflows/main.yml

@@ -12,9 +12,9 @@ jobs:
     name: Main Process
     runs-on: ubuntu-latest
     env:
-      GO_VERSION: 1.19
+      GO_VERSION: 1.23
-      GOLANGCI_LINT_VERSION: v1.50.0
+      GOLANGCI_LINT_VERSION: v1.63.4
-      YAEGI_VERSION: v0.14.2
+      YAEGI_VERSION: v0.16.1
       CGO_ENABLED: 0
     defaults:
       run:
@@ -24,20 +24,20 @@ jobs:
 
       # https://github.com/marketplace/actions/setup-go-environment
       - name: Set up Go ${{ env.GO_VERSION }}
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v5
         with:
           go-version: ${{ env.GO_VERSION }}
 
       # https://github.com/marketplace/actions/checkout
       - name: Check out code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           path: go/src/github.com/${{ github.repository }}
           fetch-depth: 0
 
       # https://github.com/marketplace/actions/cache
       - name: Cache Go modules
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ${{ github.workspace }}/go/pkg/mod
           key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}

.golangci.yml

@@ -1,15 +1,11 @@
 run:
   timeout: 3m
-  skip-files: []
-  skip-dirs: []
 
 linters-settings:
   govet:
     enable-all: true
     disable:
       - fieldalignment
-  golint:
-    min-confidence: 0
   gocyclo:
     min-complexity: 15
   goconst:
@@ -19,30 +15,43 @@ linters-settings:
     locale: US
   funlen:
     lines: -1
-    statements: 50
+    statements: 60
   godox:
     keywords:
       - FIXME
   gofumpt:
     extra-rules: true
+  depguard:
+    rules:
+      Main:
+        files:
+          - $all
+          - "!$test"
+        allow:
+          - $gostd
+          - github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/logger
+          - github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/ip
+          - github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/configuration
+          - github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/cache
+          - github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/captcha
+          - github.com/leprosus/golang-ttl-map
+          - github.com/maxlerebourg/simpleredis
+      Test:
+        files:
+          - $test
+        allow:
+          - $gostd
+          - github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/logger
+          - github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/ip
+          - github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/configuration
+          - github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/cache
+          - github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/captcha
 
 linters:
   enable-all: true
   disable:
-    - deadcode # deprecated
-    - exhaustivestruct # deprecated
-    - golint # deprecated
-    - ifshort # deprecated
-    - interfacer # deprecated
-    - maligned # deprecated
-    - nosnakecase # deprecated
-    - scopelint # deprecated
-    - scopelint # deprecated
-    - structcheck # deprecated
-    - varcheck # deprecated
     - sqlclosecheck # not relevant (SQL)
     - rowserrcheck # not relevant (SQL)
-    - execinquery # not relevant (SQL)
     - cyclop # duplicate of gocyclo
     - bodyclose # Too many false positives: https://github.com/timakin/bodyclose/issues/30
     - dupl
@@ -53,21 +62,19 @@ linters:
     - wsl
     - exhaustive
     - exhaustruct
-    - goerr113
+    - err113
     - wrapcheck
-    - ifshort
     - noctx
     - lll
-    - gomnd
     - forbidigo
     - varnamelen
     - wastedassign # is disabled because of generics
     - gofumpt
     - gci
-
+    - mnd
+    - exportloopref
 issues:
   exclude-use-default: false
-  max-per-linter: 0
   max-same-issues: 0
   exclude:
     - "G402: TLS InsecureSkipVerify may be true."

Makefile

@@ -26,25 +26,28 @@ run_local:
 	docker compose -f docker-compose.local.yml up -d --remove-orphans
 
 run_behindproxy:
-	docker compose -f examples/behind-proxy/docker-compose.cloudflare.yml up -d --remove-orphans
+	docker compose -f examples/behind-proxy/docker-compose.yml up -d --remove-orphans
 
 run_cacheredis:
-	docker compose -f examples/redis-cache/docker-compose.redis.yml up -d --remove-orphans
+	docker compose -f examples/redis-cache/docker-compose.yml up -d --remove-orphans
 
 run_trustedips:
-	docker compose -f examples/trusted-ips/docker-compose.trusted.yml up -d --remove-orphans
+	docker compose -f examples/trusted-ips/docker-compose.yml up -d --remove-orphans
 
 run_binaryvm:
 	cd examples/binary-vm/ && sudo vagrant up
 
 run_tlsauth:
-	docker compose -f examples/tls-auth/docker-compose.tls-auth.yml down && docker compose -f examples/tls-auth/docker-compose.tls-auth.yml up -d && docker compose -f examples/tls-auth/docker-compose.tls-auth.yml restart && docker compose -f examples/tls-auth/docker-compose.tls-auth.yml logs -f
+	docker compose -f examples/tls-auth/docker-compose.yml up  -d --remove-orphans
 
 run_appsec:
-	docker compose -f examples/appsec-enabled/docker-compose.appsec-enabled.yml up -d
+	docker compose -f examples/appsec-enabled/docker-compose.yml up -d
 
 run_captcha:
-	docker compose -f examples/captcha/docker-compose.captcha.yml up -d
+	docker compose -f examples/captcha/docker-compose.yml up -d
+
+run_custom_ban_page:
+	docker compose -f examples/custom-ban-page/docker-compose.yml up -d
 
 run:
 	docker compose -f docker-compose.yml up -d --remove-orphans
@@ -59,19 +62,25 @@ restart:
 	docker compose -f docker-compose.yml restart
 
 restart_behindproxy:
-	docker compose -f examples/behind-proxy/docker-compose.cloudflare.yml restart
+	docker compose -f examples/behind-proxy/docker-compose.yml restart
 
 restart_cacheredis:
-	docker compose -f examples/redis-cache/docker-compose.redis.yml restart
+	docker compose -f examples/redis-cache/docker-compose.yml restart
 
 restart_trustedips:
-	docker compose -f examples/trusted-ips/docker-compose.trusted.yml restart
+	docker compose -f examples/trusted-ips/docker-compose.yml restart
 
 restart_tlsauth:
-	docker compose -f examples/tls-auth/docker-compose.tls-auth.yml
+	docker compose -f examples/tls-auth/docker-compose.yml
 
 restart_appsec:
-	docker compose -f examples/tls-auth/docker-compose.appsec-enabled.yml
+	docker compose -f examples/tls-auth/docker-compose.yml
+
+restart_captcha:
+	docker compose -f examples/captcha/docker-compose.yml
+
+restart_custombanpage:
+	docker compose -f examples/custom-ban-page/docker-compose.yml
 
 show_logs:
 	docker compose -f docker-compose.yml restart
@@ -83,11 +92,13 @@ show_dev_logs:
 	docker compose -f docker-compose.dev.yml logs -f
 
 clean_all_docker:
-	docker compose -f examples/behind-proxy/docker-compose.cloudflare.yml down --remove-orphans
+	docker compose -f examples/behind-proxy/docker-compose.yml down --remove-orphans
-	docker compose -f examples/redis-cache/docker-compose.redis.yml down --remove-orphans
+	docker compose -f examples/redis-cache/docker-compose.yml down --remove-orphans
-	docker compose -f examples/trusted-ips/docker-compose.trusted.yml down --remove-orphans
+	docker compose -f examples/trusted-ips/docker-compose.yml down --remove-orphans
-	docker compose -f examples/tls-auth/docker-compose.tls-auth.yml down --remove-orphans
+	docker compose -f examples/tls-auth/docker-compose.yml down --remove-orphans
-	docker compose -f examples/appsec-enabled/docker-compose.appsec-enabled.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-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
 
@@ -98,3 +109,6 @@ clean_vagrant:
 show_metrics:
 	docker exec crowdsec cscli metrics
 
+show_decisions:
+	docker exec crowdsec cscli decisions list
+

README.md

@@ -26,6 +26,7 @@ The AppSec Component offers:
 - Low-effort virtual patching capabilities.
 - Support for your legacy ModSecurity rules.
 - Combining classic WAF benefits with advanced CrowdSec features for otherwise difficult advanced behavior detection.
+
 More information on appsec in the [Crowdsec Documentation](https://doc.crowdsec.net/docs/next/appsec/intro/).
 
 Remediation offered by [Crowdsec](https://docs.crowdsec.net/u/bouncers/intro) and supported by the plugin can be either `ban` or `captcha`.  
@@ -34,15 +35,15 @@ For the `captcha` remediation, the user will be redirected to a page to complete
 
 On successfull completion, he will be cleaned for a specified period of time before a new resolution challenge is expected if Crowdsec still has a decision to verify the user behavior. See the example captcha for more informations and configuration intructions.  
 The following captcha providers are supported now:
+
 - [hcaptcha](https://www.hcaptcha.com/)
 - [recaptcha](https://www.google.com/recaptcha/about/)
- - [turnstile](https://www.cloudflare.com/fr-fr/products/turnstile/)
+- [turnstile](https://www.cloudflare.com/products/turnstile/)
 
-
+There are 5 operating modes (CrowdsecMode) for this plugin:
-There are 4 operating modes (CrowdsecMode) for this plugin:
 
 | Mode   | Description                                                                                                                                                                                                                                                                                           |
-|------|------|
+| ------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | none   | If the client IP is on ban list, it will get a http code 403 response. Otherwise, request will continue as usual. All request call the Crowdsec LAPI                                                                                                                                                  |
 | live   | If the client IP is on ban list, it will get a http code 403 response. Otherwise, request will continue as usual. The bouncer can leverage use of a local cache in order to reduce the number of requests made to the Crowdsec LAPI. It will keep in cache the status for each IP that makes queries. |
 | stream | Stream Streaming mode allows you to keep in the local cache only the Banned IPs, every requests that does not hit the cache is authorized. Every minute, the cache is updated with news from the Crowdsec LAPI.                                                                                       |
@@ -51,14 +52,256 @@ There are 4 operating modes (CrowdsecMode) for this plugin:
 
 The `streaming mode` is recommended for performance, decisions are updated every 60 sec by default and that's the only communication between Traefik and Crowdsec. Every request that happens hits the cache for quick decisions.
 
-The cache can be local to Traefik using the filesystem, or a separate Redis instance.  
+The cache can be local to Traefik in memory or using a separate Redis instance.
 
+Below are Mermaid diagrams detailling how each mode work:
+
+<details><summary>Mode none workflow</summary>
+
+> A Ban decision exists in CrowdsecLAPI
+
+```mermaid
+sequenceDiagram
+    participant User
+    participant TraefikPlugin
+    User->>TraefikPlugin: Can I access that webpage
+    create participant CrowdsecLAPI
+    TraefikPlugin-->>CrowdsecLAPI: Does the User IP has a Crowdsec Decision ?
+    Destroy CrowdsecLAPI
+    CrowdsecLAPI-->>TraefikPlugin: Yes a ban Decision
+    TraefikPlugin->>User: No, HTTP 403
+```
+
+> No decision in CrowdsecLAPI
+
+```mermaid
+sequenceDiagram
+    participant User
+    participant TraefikPlugin
+    User->>TraefikPlugin: Can I access that webpage
+    create participant CrowdsecLAPI
+    TraefikPlugin-->>CrowdsecLAPI: Does the User IP has a crowdsec decision ?
+    Destroy CrowdsecLAPI
+    CrowdsecLAPI-->>TraefikPlugin: Nothing, all good!
+    Destroy TraefikPlugin
+    TraefikPlugin->>Webserver: Forwarding this HTTP Request from User
+    Webserver->>User: HTTP Response
+```
+
+</details>
+
+<details><summary>Mode live workflow</summary>
+
+> A Ban decision exists in CrowdsecLAPI but not in cache
+
+```mermaid
+sequenceDiagram
+    participant User
+    participant TraefikPlugin
+    User->>TraefikPlugin: Can I access that webpage
+    create participant PluginCache
+    TraefikPlugin-->>PluginCache: Does the User IP has a crowdsec decision ?
+    PluginCache-->>TraefikPlugin: Nothing, all good!
+    create participant CrowdsecLAPI
+    TraefikPlugin-->>CrowdsecLAPI: Does the User IP has a crowdsec decision ?
+    Destroy CrowdsecLAPI
+    CrowdsecLAPI-->>TraefikPlugin: Yes a ban Decision
+    TraefikPlugin-->>PluginCache: Store the information for this IP for DefaultDecisionSeconds
+    Destroy PluginCache
+    PluginCache-->>TraefikPlugin: Done
+    TraefikPlugin->>User: No, HTTP 403
+```
+
+> No decision in cache
+
+```mermaid
+sequenceDiagram
+    participant User
+    participant TraefikPlugin
+    User->>TraefikPlugin: Can I access that webpage
+    create participant PluginCache
+    TraefikPlugin-->>PluginCache: Does the User IP has a crowdsec decision ?
+    PluginCache-->>TraefikPlugin: Nothing, all good!
+    create participant CrowdsecLAPI
+    TraefikPlugin-->>CrowdsecLAPI: Does the User IP has a crowdsec decision ?
+    Destroy CrowdsecLAPI
+    CrowdsecLAPI-->>TraefikPlugin: Nothing, all good!
+    TraefikPlugin-->>PluginCache: Store the information for this IP for DefaultDecisionSeconds
+    Destroy PluginCache
+    PluginCache-->>TraefikPlugin: Done
+    TraefikPlugin->>Webserver: Forwarding this HTTP Request from User
+    Webserver->>User: HTTP Response
+```
+
+</details>
+
+<details><summary>Mode stream workflow</summary>
+
+> Cache Synchronization every UpdateIntervalSeconds
+
+```mermaid
+sequenceDiagram
+    participant TraefikPlugin
+    participant CrowdsecLAPI
+    TraefikPlugin->>CrowdsecLAPI: What are the current decisions
+    Destroy CrowdsecLAPI
+    CrowdsecLAPI->>TraefikPlugin: Here is the list
+    create participant PluginCache
+    TraefikPlugin-->>PluginCache: Store this list
+    Destroy PluginCache
+    PluginCache-->>TraefikPlugin: Done
+```
+
+> A Ban decision exists in cache
+
+```mermaid
+sequenceDiagram
+    participant User
+    participant TraefikPlugin
+    User->>TraefikPlugin: Can I access that webpage
+    create participant PluginCache
+    TraefikPlugin-->>PluginCache: Does the User IP has a crowdsec decision ?
+    Destroy PluginCache
+    PluginCache-->>TraefikPlugin: Yes a ban decision
+    Destroy TraefikPlugin
+    TraefikPlugin->>User: No, HTTP 403
+```
+
+> No decision in cache
+
+```mermaid
+sequenceDiagram
+    participant User
+    participant TraefikPlugin
+    User->>TraefikPlugin: Can I access that webpage
+    create participant PluginCache
+    TraefikPlugin-->>PluginCache: Does the User IP has a crowdsec decision ?
+    Destroy PluginCache
+    PluginCache-->>TraefikPlugin: Nothing, all good!
+    Destroy TraefikPlugin
+    TraefikPlugin->>Webserver: Forwarding this HTTP Request from User
+    Webserver->>User: HTTP Response
+```
+
+</details>
+
+<details><summary>Mode alone Workflow</summary>
+
+> Cache Synchronization every 2 hours to the Crowdsec Central API
+
+```mermaid
+sequenceDiagram
+    participant TraefikPlugin
+    participant CrowdsecCAPI
+    TraefikPlugin->>CrowdsecCAPI: What are the current decisions from CAPI
+    Destroy CrowdsecCAPI
+    CrowdsecCAPI->>TraefikPlugin: Here is the list
+    create participant PluginCache
+    TraefikPlugin-->>PluginCache: Store this list
+    Destroy PluginCache
+    PluginCache-->>TraefikPlugin: Done
+```
+
+> A Ban decision exists in cache
+
+```mermaid
+sequenceDiagram
+    participant User
+    participant TraefikPlugin
+    User->>TraefikPlugin: Can I access that webpage
+    create participant PluginCache
+    TraefikPlugin-->>PluginCache: Does the User IP has a crowdsec decision ?
+    Destroy PluginCache
+    PluginCache-->>TraefikPlugin: Yes a ban decision
+    Destroy TraefikPlugin
+    TraefikPlugin->>User: No, HTTP 403
+```
+
+> No decision in cache
+
+```mermaid
+sequenceDiagram
+    participant User
+    participant TraefikPlugin
+    User->>TraefikPlugin: Can I access that webpage
+    create participant PluginCache
+    TraefikPlugin-->>PluginCache: Does the User IP has a crowdsec decision ?
+    Destroy PluginCache
+    PluginCache-->>TraefikPlugin: Nothing, all good!
+    Destroy TraefikPlugin
+    TraefikPlugin->>Webserver: Forwarding this HTTP Request from User
+    Webserver->>User: HTTP Response
+```
+
+</details>
+
+<details><summary>Mode appsec workflow</summary>
+
+> The request is detected as malicious
+
+```mermaid
+sequenceDiagram
+    participant User
+    participant TraefikPlugin
+    User->>TraefikPlugin: Can I access that webpage
+    create participant CrowdsecAppSec
+    TraefikPlugin-->>CrowdsecAppSec: Is this request malicious ?
+    Destroy CrowdsecAppSec
+    CrowdsecAppSec-->>TraefikPlugin: Yes I think so
+    Destroy TraefikPlugin
+    TraefikPlugin->>User: No, HTTP 403
+```
+
+> The request is not detected as malicious
+
+```mermaid
+sequenceDiagram
+    participant User
+    participant TraefikPlugin
+    User->>TraefikPlugin: Can I access that webpage
+    create participant CrowdsecAppSec
+    TraefikPlugin-->>CrowdsecAppSec: Is this request malicious ?
+    Destroy CrowdsecAppSec
+    CrowdsecAppSec-->>TraefikPlugin: No I don't think so
+    Destroy TraefikPlugin
+    TraefikPlugin->>Webserver: Forwarding this HTTP Request from User
+    Webserver->>User: HTTP Response
+```
+
+</details>
+
+<details><summary>Captcha decision workflow</summary>
+
+```mermaid
+sequenceDiagram
+    participant User
+    participant TraefikPlugin
+    User->>TraefikPlugin: Can I access that webpage
+    create participant PluginCache
+    TraefikPlugin-->>PluginCache: Does the User IP has a Crowdsec Decision ?
+    PluginCache-->>TraefikPlugin: Yes a Catpcha Decision
+    TraefikPlugin->>User: Please complete this captcha
+    User->>TraefikPlugin: Fine, done!
+    create participant ProviderCaptcha
+    TraefikPlugin-->>ProviderCaptcha: Is the validation OK ?
+    Destroy ProviderCaptcha
+    ProviderCaptcha-->>TraefikPlugin: Yes
+    TraefikPlugin-->>PluginCache: Set the User IP Clean for captchaGracePeriodSeconds
+    Destroy PluginCache
+    PluginCache-->>TraefikPlugin: Done
+    Destroy TraefikPlugin
+    TraefikPlugin->>Webserver: Forwarding this HTTP Request from User
+    Webserver->>User: HTTP Response
+```
+
+</details>
 
 ## Usage
 
 To get started, use the `docker-compose.yml` file.
 
 You can run it with:
+
 ```bash
 make run
 ```
@@ -66,17 +309,26 @@ 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*
+_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*.
+Only one instance of the plugin is _possible_.
+
+**/!\ Appsec maximum body limit is defaulted to 10MB**
+_By careful when you upgrade to >1.4.x_
 
 ### Variables
+
 - Enabled
   - bool
   - default: false
   - Enable the plugin
 - LogLevel
   - string
-  - default: `INFO`, expected values are: `INFO`, `DEBUG`
+  - default: `INFO`, expected values are: `INFO`, `DEBUG`, `ERROR`
+  - Log are written to `stdout` / `stderr` of file if LogFilePath is provided
+- LogFilePath
+  - string
+  - default: ""
+  - File Path to write logs, must be writable by Traefik, Log rotation may require a restart of traefik
 - CrowdsecMode
   - string
   - default: `live`, expected values are: `none`, `live`, `stream`, `alone`, `appsec`
@@ -88,10 +340,22 @@ Only one instance of the plugin is *possible*.
   - string
   - default: "crowdsec:7422"
   - Crowdsec Appsec Server available on which host and port. The scheme will be handled by the CrowdsecLapiScheme var.
+- CrowdsecAppsecPath
+  - string
+  - default: "/"
+  - Crowdsec Appsec Server available on this path. Will be appended to CrowdsecAppsecHost. Need to finish with "/".
 - CrowdsecAppsecFailureBlock
   - bool
   - default: true
   - Block request when Crowdsec Appsec Server have a [status 500](https://docs.crowdsec.net/docs/next/appsec/protocol#response-code).
+- CrowdsecAppsecUnreachableBlock
+  - bool
+  - default: true
+  - Block request when Crowdsec Appsec Server is unreachable.
+- CrowdsecAppsecBodyLimit
+  - int64
+  - default: 10485760 (= 10MB)
+  - Transmit only the first number of bytes to Crowdsec Appsec Server.
 - CrowdsecLapiScheme
   - string
   - default: `http`, expected values are: `http`, `https`
@@ -99,6 +363,10 @@ Only one instance of the plugin is *possible*.
   - string
   - default: "crowdsec:8080"
   - Crowdsec LAPI available on which host and port.
+- CrowdsecLapiPath
+  - string
+  - default: "/"
+  - Crowdsec LAPI Server available on this path. Will be appended to CrowdsecLapiHost. Need to finish with "/".
 - CrowdsecLapiKey
   - string
   - default: ""
@@ -123,18 +391,22 @@ Only one instance of the plugin is *possible*.
   - string
   - default: []
   - List of client IPs to trust, they will bypass any check from the bouncer or cache (useful for LAN or VPN IP)
-- ForwardedHeadersTrustedIPs
+- RemediationHeadersCustomName
-  - []string
+  - string
-  - default: []
+  - default: ""
-  - List of IPs of trusted Proxies that are in front of traefik (ex: Cloudflare)
+  - Name of the header you want in response when request are cancelled (possible value of the header `ban` or `captcha`)
 - ForwardedHeadersCustomName
   - string
   - default: "X-Forwarded-For"
   - Name of the header where the real IP of the client should be retrieved
+- ForwardedHeadersTrustedIPs
+  - []string
+  - default: []
+  - List of IPs of trusted Proxies that are in front of traefik (ex: Cloudflare)
 - RedisCacheEnabled
   - bool
   - default: false
-  - enable Redis cache instead of filesystem cache
+  - enable Redis cache instead of in-memory cache
 - RedisCacheHost
   - string
   - default: "redis:6379"
@@ -147,6 +419,10 @@ Only one instance of the plugin is *possible*.
   - string
   - default: ""
   - Database selection for the Redis service
+- RedisCacheUnreachableBlock
+  - bool
+  - default: true
+  - Block request when Redis is unreachable (if Redis is unreachable, 1-second delay is added to each request)
 - HTTPTimeoutSeconds
   - int64
   - default: 10
@@ -155,10 +431,18 @@ Only one instance of the plugin is *possible*.
   - int64
   - default: 60
   - Used only in `stream` mode, the interval between requests to fetch blacklisted IPs from LAPI
+- UpdateMaxFailure
+  - 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)
 - DefaultDecisionSeconds
   - int64
   - default: 60
   - Used only in `live` mode, maximum decision duration
+- RemediationStatusCode
+  - int
+  - default: 403
+  - HTTP status code for banned user (not captcha)
 - CrowdsecCapiMachineId
   - string
   - Used only in `alone` mode, login for Crowdsec CAPI
@@ -177,21 +461,25 @@ Only one instance of the plugin is *possible*.
 - CaptchaSecretKey
   - string
   - Site secret key for the captcha provider
-- CaptchaHTMLFilePath
-  - string
-  - default: /captcha.html
-  - Path where the captcha template is stored
 - CaptchaGracePeriodSeconds
   - int64
   - default: 1800 (= 30 minutes)
   - Period after validation of a captcha before a new validation is required if Crowdsec decision is still valid
-
+- CaptchaHTMLFilePath
+  - string
+  - default: /captcha.html
+  - Path where the captcha template is stored
+- BanHTMLFilePath
+  - string
+  - default: ""
+  - Path where the ban html file is stored (default empty ""=disabled)
 
 ### Configuration
 
 For each plugin, the Traefik static configuration must define the module name (as is usual for Go packages).
 
 The following declaration (given here in YAML) defines a plugin:
+
 > Note that you don't need to copy all thoses settings but only the ones you want to use.  
 > See the examples for advanced usage.
 
@@ -230,17 +518,23 @@ http:
         bouncer:
           enabled: false
           logLevel: DEBUG
+          LogFilePath: ""
           updateIntervalSeconds: 60
+          updateMaxFailure: 0
           defaultDecisionSeconds: 60
+          remediationStatusCode: 403
           httpTimeoutSeconds: 10
           crowdsecMode: live
           crowdsecAppsecEnabled: false
           crowdsecAppsecHost: crowdsec:7422
+          crowdsecAppsecPath: "/"
           crowdsecAppsecFailureBlock: true
+          crowdsecAppsecUnreachableBlock: true
+          crowdsecAppsecBodyLimit: 10485760
           crowdsecLapiKey: privateKey-foo
-          crowdsecLapiKeyFile: /etc/traefik/cs-privateKey-foo
-          crowdsecLapiHost: crowdsec:8080
           crowdsecLapiScheme: http
+          crowdsecLapiHost: crowdsec:8080
+          crowdsecLapiPath: "/"
           crowdsecLapiTLSInsecureVerify: false
           crowdsecCapiMachineId: login
           crowdsecCapiPassword: password
@@ -254,17 +548,18 @@ http:
           clientTrustedIPs:
             - 192.168.1.0/24
           forwardedHeadersCustomName: X-Custom-Header
+          remediationHeadersCustomName: cs-remediation
           redisCacheEnabled: false
           redisCacheHost: "redis:6379"
           redisCachePassword: password
           redisCacheDatabase: "5"
+          redisCacheUnreachableBlock: true
           crowdsecLapiTLSCertificateAuthority: |-
             -----BEGIN CERTIFICATE-----
             MIIEBzCCAu+gAwIBAgICEAAwDQYJKoZIhvcNAQELBQAwgZQxCzAJBgNVBAYTAlVT
             ...
             Q0veeNzBQXg1f/JxfeA39IDIX1kiCf71tGlT
             -----END CERTIFICATE-----
-          crowdsecLapiTLSCertificateAuthorityFile: /etc/traefik/crowdsec-certs/ca.pem
           crowdsecLapiTLSCertificateBouncer: |-
             -----BEGIN CERTIFICATE-----
             MIIEHjCCAwagAwIBAgIUOBTs1eqkaAUcPplztUr2xRapvNAwDQYJKoZIhvcNAQEL
@@ -272,27 +567,27 @@ http:
             RaXAnYYUVRblS1jmePemh388hFxbmrpG2pITx8B5FMULqHoj11o2Rl0gSV6tHIHz
             N2U=
             -----END CERTIFICATE-----
-          crowdsecLapiTLSCertificateBouncerFile: /etc/traefik/crowdsec-certs/bouncer.pem
           crowdsecLapiTLSCertificateBouncerKey: |-
             -----BEGIN RSA PRIVATE KEY-----
             MIIEogIBAAKCAQEAtYQnbJqifH+ZymePylDxGGLIuxzcAUU4/ajNj+qRAdI/Ux3d
             ...
             ic5cDRo6/VD3CS3MYzyBcibaGaV34nr0G/pI+KEqkYChzk/PZRA=
             -----END RSA PRIVATE KEY-----
-          crowdsecLapiTLSCertificateBouncerKeyFile: /etc/traefik/crowdsec-certs/bouncer-key.pem
           captchaProvider: hcaptcha
           captchaSiteKey: FIXME
           captchaSecretKey: FIXME
           captchaGracePeriodSeconds: 1800
           captchaHTMLFilePath: /captcha.html
+          banHTMLFilePath: /ban.html
 ```
 
 #### Fill variable with value of file
 
-`CrowdsecLapiTlsCertificateBouncerKey`, `CrowdsecLapiTlsCertificateBouncer`, `CrowdsecLapiTlsCertificateAuthority`, `CrowdsecCapiMachineId`, `CrowdsecCapiPassword` and `CrowdsecLapiKey` can be provided with the content as raw or through a file path that Traefik can read.  
+`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.  
 The file variable will be used as preference if both content and file are provided for the same variable.
 
 Format is:
+
 - Content: VariableName: XXX
 - File : VariableNameFile: /path
 
@@ -302,6 +597,7 @@ You can authenticate to the LAPI either with LAPIKEY or by using client certific
 Please see below for more details on each option.
 
 #### Generate LAPI KEY
+
 You can generate a crowdsec API key for the LAPI.  
 You can follow the documentation here: [docs.crowdsec.net/docs/user_guides/lapi_mgmt](https://docs.crowdsec.net/docs/user_guides/lapi_mgmt)
 
@@ -311,24 +607,26 @@ docker exec crowdsec cscli bouncers add crowdsecBouncer
 ```
 
 This LAPI key must be set where is noted FIXME-LAPI-KEY in the docker-compose.yml
+
 ```yaml
-...
+..
 whoami:
   labels:
     - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdseclapikey=FIXME-LAPI-KEY"
     - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdseclapischeme=http"
     - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdseclapihost=crowdsec:8080"
-...
+..
 crowdsec:
   environment:
     BOUNCER_KEY_TRAEFIK: FIXME-LAPI-KEY
-...
 ```
 
 Note:
+
 > Crowdsec does not require a specific format for la LAPI-key, you may use something like FIXME-LAPI-KEY but that is not recommanded for obvious reasons
 
 You can then run all the containers:
+
 ```bash
 docker compose up -d
 ```
@@ -378,6 +676,8 @@ docker exec crowdsec cscli decisions remove --ip 10.0.0.10 -t captcha
 
 #### 9. Using Traefik with Captcha remediation feature enabled [examples/captcha/README.md](https://github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/blob/main/examples/captcha/README.md)
 
+#### 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)
+
 ### Local Mode
 
 Traefik also offers a developer mode that can be used for temporary testing of plugins not hosted on GitHub.
@@ -403,12 +703,14 @@ The source code of the plugin should be organized as follows:
 ```
 
 For local development, a `docker-compose.local.yml` is provided which reproduces the directory layout needed by Traefik.  
-This works once you have generated and filled your *LAPI-KEY* (crowdsecLapiKey), if not read above for informations.
+This works once you have generated and filled your _LAPI-KEY_ (crowdsecLapiKey), if not read above for informations.
 
 ```bash
 docker compose -f docker-compose.local.yml up -d
 ```
+
 Equivalent to
+
 ```bash
 make run_local
 ```

ban.html

@@ -0,0 +1,329 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <title>CrowdSec Access Forbidden</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>
+</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 Access Forbidden</h1>
+      </div>
+      <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" />
+            <path
+              d="M51 146c0 2.7.1 5.5.3 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 0-6.6-1-9.2-2.4.9 4.6 3.7 8.3 7.3 9.2M143.9 105c-1.9-.4-3.5-1.2-4.9-2.3 1.4 5.6 2.5 11.3 4 17 1.2 5 2 10 2.4 15 .6 7.8-4.5 14.5-10.9 14.5h-15c-6.4 0-11.5-6.7-11-14.5.5-5 1.3-10 2.6-15 1.3-5.3 2.3-10.5 3.6-15.7-2.2 1.2-4.8 1.9-7.7 2-4.7.1-9.4-.3-14-1-4-.4-6.7-3-8-6.7-1.3-3.4-2-7-3.3-10.4-.5-1.5-1.6-2.8-2.4-4.2-.4-.6-.8-1.2-.9-1.8v-7.8a77 77 0 0124.5-3c6.1 0 12 1 17.8 3.2 4.7 1.7 9.7 1.8 14.4 0 9-3.4 18.2-3.8 27.5-3 4.9.5 9.8 1.6 14.8 2.4v8.2c0 .6-.3 1.5-.7 1.7-2 .9-2.2 2.7-2.7 4.5-.9 3.2-1.8 6.4-2.9 9.5a11 11 0 01-8.8 7.7 40.6 40.6 0 01-18.4-.2m29.4 80.6c-3.2-26.8-6.4-50-8.9-60.7a14.3 14.3 0 0014.1-14h.4a9 9 0 005.6-16.5 14.3 14.3 0 00-3.7-27.2 9 9 0 00-6.9-14.6c2.4-1.1 4.5-3 5.8-5 3.4-5.3 4-29-8-44.4-5-6.3-9.8-2.5-10 1.8-1 13.2-1.1 23-4.5 34.3a9 9 0 00-16-4.1 14.3 14.3 0 00-28.4 0 9 9 0 00-16 4.1c-3.4-11.2-3.5-21.1-4.4-34.3-.3-4.3-5.2-8-10-1.8-12 15.3-11.5 39-8.1 44.4 1.3 2 3.4 3.9 5.8 5a9 9 0 00-7 14.6 14.3 14.3 0 00-3.6 27.2A9 9 0 0075 111h.5a14.5 14.5 0 0014.3 14c-4 17.2-10 66.3-15 111.3l-1.3 13.4a1656.4 1656.4 0 01106.6 0l-1.4-12.7-5.4-51.3" />
+            <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>
+</body>
+</html>

bouncer.go

@@ -1,5 +1,5 @@
 // Package crowdsec_bouncer_traefik_plugin implements a middleware that communicates with crowdsec.
-// It can cache results to filesystem or redis, or even ask crowdsec for every requests.
+// It can cache results in memory or using redis, or even ask crowdsec for every requests.
 package crowdsec_bouncer_traefik_plugin //nolint:revive,stylecheck
 
 import (
@@ -7,6 +7,7 @@ import (
 	"context"
 	"crypto/tls"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -28,6 +29,7 @@ const (
 	crowdsecAppsecHostHeader = "X-Crowdsec-Appsec-Host"
 	crowdsecAppsecVerbHeader = "X-Crowdsec-Appsec-Verb"
 	crowdsecAppsecHeader     = "X-Crowdsec-Appsec-Api-Key"
+	crowdsecAppsecUserAgent  = "X-Crowdsec-Appsec-User-Agent"
 	crowdsecLapiHeader       = "X-Api-Key"
 	crowdsecLapiRoute        = "v1/decisions"
 	crowdsecLapiStreamRoute  = "v1/decisions/stream"
@@ -42,6 +44,7 @@ const (
 var (
 	isStartup               = true
 	isCrowdsecStreamHealthy = true
+	updateFailure           = 0
 	ticker                  chan bool
 )
 
@@ -59,19 +62,28 @@ type Bouncer struct {
 	enabled                 bool
 	appsecEnabled           bool
 	appsecHost              string
+	appsecPath              string
 	appsecFailureBlock      bool
+	appsecUnreachableBlock  bool
+	appsecBodyLimit         int64
 	crowdsecScheme          string
 	crowdsecHost            string
+	crowdsecPath            string
 	crowdsecKey             string
 	crowdsecMode            string
 	crowdsecMachineID       string
 	crowdsecPassword        string
 	crowdsecScenarios       []string
 	updateInterval          int64
+	updateMaxFailure        int
 	defaultDecisionTimeout  int64
-	customHeader           string
+	remediationStatusCode   int
+	remediationCustomHeader string
+	forwardedCustomHeader   string
 	crowdsecStreamRoute     string
 	crowdsecHeader          string
+	redisUnreachableBlock   bool
+	banTemplateString       string
 	clientPoolStrategy      *ip.PoolStrategy
 	serverPoolStrategy      *ip.PoolStrategy
 	httpClient              *http.Client
@@ -81,11 +93,12 @@ type Bouncer struct {
 }
 
 // New creates the crowdsec bouncer plugin.
-func New(ctx context.Context, next http.Handler, config *configuration.Config, name string) (http.Handler, error) {
+func New(_ context.Context, next http.Handler, config *configuration.Config, name string) (http.Handler, error) {
-	log := logger.New(config.LogLevel)
+	config.LogLevel = strings.ToUpper(config.LogLevel)
+	log := logger.New(config.LogLevel, config.LogFilePath)
 	err := configuration.ValidateParams(config)
 	if err != nil {
-		log.Error(fmt.Sprintf("New:validateParams %s", err.Error()))
+		log.Error("New:validateParams " + err.Error())
 		return nil, err
 	}
 
@@ -98,8 +111,10 @@ func New(ctx context.Context, next http.Handler, config *configuration.Config, n
 	if config.CrowdsecMode == configuration.AloneMode {
 		config.CrowdsecCapiMachineID, _ = configuration.GetVariable(config, "CrowdsecCapiMachineID")
 		config.CrowdsecCapiPassword, _ = configuration.GetVariable(config, "CrowdsecCapiPassword")
+		config.CrowdsecLapiScheme = configuration.HTTPS
 		config.CrowdsecLapiHost = crowdsecCapiHost
-		config.CrowdsecLapiScheme = "https"
+		config.CrowdsecLapiPath = "/"
+		config.CrowdsecAppsecEnabled = false
 		config.UpdateIntervalSeconds = 7200 // 2 hours
 		crowdsecStreamRoute = crowdsecCapiStreamRoute
 		crowdsecHeader = crowdsecCapiHeader
@@ -108,17 +123,29 @@ func New(ctx context.Context, next http.Handler, config *configuration.Config, n
 		crowdsecHeader = crowdsecLapiHeader
 		tlsConfig, err = configuration.GetTLSConfigCrowdsec(config, log)
 		if err != nil {
-			log.Error(fmt.Sprintf("New:getTLSConfigCrowdsec fail to get tlsConfig %s", err.Error()))
+			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(fmt.Sprintf("New:crowdsecLapiKey fail to get CrowdsecLapiKey and no client certificate setup %s", errAPIKey.Error()))
+			log.Error("New:crowdsecLapiKey fail to get CrowdsecLapiKey and no client certificate setup " + errAPIKey.Error())
-			return nil, err
+			return nil, errAPIKey
 		}
 		config.CrowdsecLapiKey = apiKey
 	}
 
+	var banTemplateString string
+	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()
+	}
+
 	bouncer := &Bouncer{
 		next:     next,
 		name:     name,
@@ -128,16 +155,25 @@ func New(ctx context.Context, next http.Handler, config *configuration.Config, n
 		crowdsecMode:            config.CrowdsecMode,
 		appsecEnabled:           config.CrowdsecAppsecEnabled,
 		appsecHost:              config.CrowdsecAppsecHost,
+		appsecPath:              config.CrowdsecAppsecPath,
 		appsecFailureBlock:      config.CrowdsecAppsecFailureBlock,
+		appsecUnreachableBlock:  config.CrowdsecAppsecUnreachableBlock,
+		appsecBodyLimit:         config.CrowdsecAppsecBodyLimit,
 		crowdsecScheme:          config.CrowdsecLapiScheme,
 		crowdsecHost:            config.CrowdsecLapiHost,
+		crowdsecPath:            config.CrowdsecLapiPath,
 		crowdsecKey:             config.CrowdsecLapiKey,
 		crowdsecMachineID:       config.CrowdsecCapiMachineID,
 		crowdsecPassword:        config.CrowdsecCapiPassword,
 		crowdsecScenarios:       config.CrowdsecCapiScenarios,
 		updateInterval:          config.UpdateIntervalSeconds,
-		customHeader:           config.ForwardedHeadersCustomName,
+		updateMaxFailure:        config.UpdateMaxFailure,
+		remediationCustomHeader: config.RemediationHeadersCustomName,
+		forwardedCustomHeader:   config.ForwardedHeadersCustomName,
 		defaultDecisionTimeout:  config.DefaultDecisionSeconds,
+		remediationStatusCode:   config.RemediationStatusCode,
+		redisUnreachableBlock:   config.RedisCacheUnreachableBlock,
+		banTemplateString:       banTemplateString,
 		crowdsecStreamRoute:     crowdsecStreamRoute,
 		crowdsecHeader:          crowdsecHeader,
 		log:                     log,
@@ -181,6 +217,7 @@ func New(ctx context.Context, next http.Handler, config *configuration.Config, n
 		config.CaptchaProvider,
 		config.CaptchaSiteKey,
 		config.CaptchaSecretKey,
+		config.RemediationHeadersCustomName,
 		config.CaptchaHTMLFilePath,
 		config.CaptchaGracePeriodSeconds,
 	)
@@ -191,7 +228,7 @@ func New(ctx context.Context, next http.Handler, config *configuration.Config, n
 	if (config.CrowdsecMode == configuration.StreamMode || config.CrowdsecMode == configuration.AloneMode) && ticker == nil {
 		if config.CrowdsecMode == configuration.AloneMode {
 			if err := getToken(bouncer); err != nil {
-				bouncer.log.Error(fmt.Sprintf("New:getToken %s", err.Error()))
+				bouncer.log.Error("New:getToken " + err.Error())
 				return nil, err
 			}
 		}
@@ -201,31 +238,31 @@ func New(ctx context.Context, next http.Handler, config *configuration.Config, n
 			handleStreamTicker(bouncer)
 		})
 	}
-	bouncer.log.Debug(fmt.Sprintf("New initialized mode:%s", config.CrowdsecMode))
+	bouncer.log.Debug("New initialized mode:" + config.CrowdsecMode)
 
 	return bouncer, nil
 }
 
 // ServeHTTP principal function of plugin.
 //
-//nolint:nestif
+//nolint:nestif,gocyclo
 func (bouncer *Bouncer) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
 	if !bouncer.enabled {
 		bouncer.next.ServeHTTP(rw, req)
 		return
 	}
 
-	// Here we check for the trusted IPs in the customHeader
+	// Here we check for the trusted IPs in the forwardedCustomHeader
-	remoteIP, err := ip.GetRemoteIP(req, bouncer.serverPoolStrategy, bouncer.customHeader)
+	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()))
-		rw.WriteHeader(http.StatusForbidden)
+		handleBanServeHTTP(bouncer, rw)
 		return
 	}
 	isTrusted, err := bouncer.clientPoolStrategy.Checker.Contains(remoteIP)
 	if err != nil {
 		bouncer.log.Error(fmt.Sprintf("ServeHTTP:checkerContains ip:%s %s", remoteIP, err.Error()))
-		rw.WriteHeader(http.StatusForbidden)
+		handleBanServeHTTP(bouncer, rw)
 		return
 	}
 	// if our IP is in the trusted list we bypass the next checks
@@ -246,9 +283,14 @@ func (bouncer *Bouncer) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
 		if cacheErr != nil {
 			cacheErrString := cacheErr.Error()
 			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)
+				return
+			}
 			if cacheErrString != cache.CacheMiss {
 				bouncer.log.Error(fmt.Sprintf("ServeHTTP:Get ip:%s %s", remoteIP, cacheErrString))
-				rw.WriteHeader(http.StatusForbidden)
+				handleBanServeHTTP(bouncer, rw)
 				return
 			}
 		} else {
@@ -256,7 +298,7 @@ func (bouncer *Bouncer) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
 			if value == cache.NoBannedValue {
 				handleNextServeHTTP(bouncer, remoteIP, rw, req)
 			} else {
-				handleErrorServeHTTP(bouncer, remoteIP, value, rw, req)
+				handleRemediationServeHTTP(bouncer, remoteIP, value, rw, req)
 			}
 			return
 		}
@@ -267,8 +309,8 @@ func (bouncer *Bouncer) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
 		if isCrowdsecStreamHealthy {
 			handleNextServeHTTP(bouncer, remoteIP, rw, req)
 		} else {
-			bouncer.log.Debug(fmt.Sprintf("ServeHTTP isCrowdsecStreamHealthy:false ip:%s", remoteIP))
+			bouncer.log.Debug(fmt.Sprintf("ServeHTTP isCrowdsecStreamHealthy:false ip:%s updateFailure:%d", remoteIP, updateFailure))
-			rw.WriteHeader(http.StatusForbidden)
+			handleBanServeHTTP(bouncer, rw)
 		}
 	} else {
 		value, err := handleNoStreamCache(bouncer, remoteIP)
@@ -276,7 +318,7 @@ func (bouncer *Bouncer) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
 			handleNextServeHTTP(bouncer, remoteIP, rw, req)
 		} else {
 			bouncer.log.Debug(fmt.Sprintf("ServeHTTP:handleNoStreamCache ip:%s isBanned:%v %s", remoteIP, value, err.Error()))
-			handleErrorServeHTTP(bouncer, remoteIP, value, rw, req)
+			handleRemediationServeHTTP(bouncer, remoteIP, value, rw, req)
 		}
 	}
 }
@@ -309,8 +351,25 @@ type Login struct {
 	Expire string `json:"expire"`
 }
 
-func handleErrorServeHTTP(bouncer *Bouncer, remoteIP, remediation string, rw http.ResponseWriter, req *http.Request) {
+// To append Headers we need to call rw.WriteHeader after set any header.
-	bouncer.log.Debug(fmt.Sprintf("handleErrorServeHTTP ip:%s remediation:%s", remoteIP, remediation))
+func handleBanServeHTTP(bouncer *Bouncer, rw http.ResponseWriter) {
+	if bouncer.remediationCustomHeader != "" {
+		rw.Header().Set(bouncer.remediationCustomHeader, "ban")
+	}
+	if bouncer.banTemplateString == "" {
+		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")
+	}
+}
+
+func handleRemediationServeHTTP(bouncer *Bouncer, remoteIP, remediation string, rw http.ResponseWriter, req *http.Request) {
+	bouncer.log.Debug(fmt.Sprintf("handleRemediationServeHTTP ip:%s remediation:%s", remoteIP, remediation))
 	if bouncer.captchaClient.Valid && remediation == cache.CaptchaValue {
 		if bouncer.captchaClient.Check(remoteIP) {
 			handleNextServeHTTP(bouncer, remoteIP, rw, req)
@@ -319,14 +378,14 @@ func handleErrorServeHTTP(bouncer *Bouncer, remoteIP, remediation string, rw htt
 		bouncer.captchaClient.ServeHTTP(rw, req, remoteIP)
 		return
 	}
-	rw.WriteHeader(http.StatusForbidden)
+	handleBanServeHTTP(bouncer, rw)
 }
 
 func handleNextServeHTTP(bouncer *Bouncer, remoteIP string, rw http.ResponseWriter, req *http.Request) {
 	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()))
-			rw.WriteHeader(http.StatusForbidden)
+			handleBanServeHTTP(bouncer, rw)
 			return
 		}
 	}
@@ -335,10 +394,15 @@ 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()))
+		if bouncer.updateMaxFailure != -1 && updateFailure >= bouncer.updateMaxFailure && isCrowdsecStreamHealthy {
 			isCrowdsecStreamHealthy = false
-		bouncer.log.Error(err.Error())
+			bouncer.log.Error(fmt.Sprintf("handleStreamTicker:error updateFailure:%d %s", updateFailure, err.Error()))
+		}
+		updateFailure++
 	} else {
 		isCrowdsecStreamHealthy = true
+		updateFailure = 0
 	}
 }
 
@@ -365,8 +429,8 @@ func handleNoStreamCache(bouncer *Bouncer, remoteIP string) (string, error) {
 	routeURL := url.URL{
 		Scheme:   bouncer.crowdsecScheme,
 		Host:     bouncer.crowdsecHost,
-		Path:     crowdsecLapiRoute,
+		Path:     bouncer.crowdsecPath + crowdsecLapiRoute,
-		RawQuery: fmt.Sprintf("ip=%v&banned=true", remoteIP),
+		RawQuery: fmt.Sprintf("ip=%v", remoteIP),
 	}
 	body, err := crowdsecQuery(bouncer, routeURL.String(), false)
 	if err != nil {
@@ -409,7 +473,7 @@ func handleNoStreamCache(bouncer *Bouncer, remoteIP string) (string, error) {
 	case "captcha":
 		value = cache.CaptchaValue
 	default:
-		bouncer.log.Debug(fmt.Sprintf("handleStreamCache:unknownType %s", decision.Type))
+		bouncer.log.Debug("handleStreamCache:unknownType " + decision.Type)
 	}
 	if isLiveMode {
 		durationSecond := int64(duration.Seconds())
@@ -418,7 +482,7 @@ func handleNoStreamCache(bouncer *Bouncer, remoteIP string) (string, error) {
 		}
 		bouncer.cacheClient.Set(remoteIP, value, durationSecond)
 	}
-	return value, fmt.Errorf("handleNoStreamCache:banned")
+	return value, errors.New("handleNoStreamCache:banned")
 }
 
 func getToken(bouncer *Bouncer) error {
@@ -434,7 +498,6 @@ func getToken(bouncer *Bouncer) error {
 	var login Login
 	err = json.Unmarshal(body, &login)
 	if err != nil {
-		isCrowdsecStreamHealthy = false
 		return fmt.Errorf("getToken:parsingBody %w", err)
 	}
 	if login.Code == 200 && len(login.Token) > 0 {
@@ -462,7 +525,7 @@ func handleStreamCache(bouncer *Bouncer) error {
 	streamRouteURL := url.URL{
 		Scheme:   bouncer.crowdsecScheme,
 		Host:     bouncer.crowdsecHost,
-		Path:     bouncer.crowdsecStreamRoute,
+		Path:     bouncer.crowdsecPath + bouncer.crowdsecStreamRoute,
 		RawQuery: fmt.Sprintf("startup=%t", !isCrowdsecStreamHealthy || isStartup),
 	}
 	body, err := crowdsecQuery(bouncer, streamRouteURL.String(), false)
@@ -484,7 +547,7 @@ func handleStreamCache(bouncer *Bouncer) error {
 			case "captcha":
 				value = cache.CaptchaValue
 			default:
-				bouncer.log.Debug(fmt.Sprintf("handleStreamCache:unknownType %s", decision.Type))
+				bouncer.log.Debug("handleStreamCache:unknownType " + decision.Type)
 			}
 			bouncer.cacheClient.Set(decision.Value, value, int64(duration.Seconds()))
 		}
@@ -493,7 +556,6 @@ func handleStreamCache(bouncer *Bouncer) error {
 		bouncer.cacheClient.Delete(decision.Value)
 	}
 	bouncer.log.Debug("handleStreamCache:updated")
-	isCrowdsecStreamHealthy = true
 	return nil
 }
 
@@ -511,13 +573,15 @@ func crowdsecQuery(bouncer *Bouncer, stringURL string, isPost bool) ([]byte, err
 		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")
+
 	res, err := bouncer.httpClient.Do(req)
 	if err != nil {
-		return nil, fmt.Errorf("crowdsecQuery url:%s %w", stringURL, err)
+		return nil, fmt.Errorf("crowdsecQuery:unreachable url:%s %w", stringURL, err)
 	}
 	defer func() {
 		if err = res.Body.Close(); err != nil {
-			bouncer.log.Error(fmt.Sprintf("crowdsecQuery:closeBody %s", err.Error()))
+			bouncer.log.Error("crowdsecQuery:closeBody " + err.Error())
 		}
 	}()
 	if res.StatusCode == http.StatusUnauthorized && bouncer.crowdsecMode == configuration.AloneMode {
@@ -541,15 +605,19 @@ func appsecQuery(bouncer *Bouncer, ip string, httpReq *http.Request) error {
 	routeURL := url.URL{
 		Scheme: bouncer.crowdsecScheme,
 		Host:   bouncer.appsecHost,
-		Path:   "/",
+		Path:   bouncer.appsecPath,
 	}
 	var req *http.Request
-	if httpReq.Body != nil && httpReq.ContentLength > 0 {
+	if bouncer.appsecBodyLimit > 0 && httpReq.Body != nil && httpReq.ContentLength > 0 {
-		bodyBytes, err := io.ReadAll(httpReq.Body)
+		var bodyBuffer bytes.Buffer
+		limitedReader := io.LimitReader(httpReq.Body, bouncer.appsecBodyLimit)
+		teeReader := io.TeeReader(limitedReader, &bodyBuffer)
+		bodyBytes, err := io.ReadAll(teeReader)
 		if err != nil {
 			return fmt.Errorf("appsecQuery:GetBody %w", err)
 		}
-		httpReq.Body = io.NopCloser(bytes.NewBuffer(bodyBytes))
+		// Conserve body intact after reading it for other middlewares and service
+		httpReq.Body = io.NopCloser(io.MultiReader(&bodyBuffer, httpReq.Body))
 		req, _ = http.NewRequest(http.MethodPost, routeURL.String(), bytes.NewBuffer(bodyBytes))
 	} else {
 		req, _ = http.NewRequest(http.MethodGet, routeURL.String(), nil)
@@ -564,21 +632,26 @@ func appsecQuery(bouncer *Bouncer, ip string, httpReq *http.Request) error {
 	req.Header.Set(crowdsecAppsecIPHeader, ip)
 	req.Header.Set(crowdsecAppsecVerbHeader, httpReq.Method)
 	req.Header.Set(crowdsecAppsecHostHeader, httpReq.Host)
-	req.Header.Set(crowdsecAppsecURIHeader, httpReq.URL.Path)
+	req.Header.Set(crowdsecAppsecURIHeader, httpReq.URL.String())
+	req.Header.Set(crowdsecAppsecUserAgent, httpReq.Header.Get("User-Agent"))
 
 	res, err := bouncer.httpClient.Do(req)
 	if err != nil {
-		return fmt.Errorf("appsecQuery %w", err)
+		bouncer.log.Error("appsecQuery:unreachable")
+		if bouncer.appsecUnreachableBlock {
+			return fmt.Errorf("appsecQuery:unreachable %w", err)
+		}
+		return nil
 	}
 	defer func() {
 		if err = res.Body.Close(); err != nil {
-			bouncer.log.Error(fmt.Sprintf("appsecQuery:closeBody %s", err.Error()))
+			bouncer.log.Error("appsecQuery:closeBody " + err.Error())
 		}
 	}()
 	if res.StatusCode == http.StatusInternalServerError {
-		bouncer.log.Debug("crowdsecQuery statusCode:500")
+		bouncer.log.Info("appsecQuery:failure")
 		if bouncer.appsecFailureBlock {
-			return fmt.Errorf("appsecQuery statusCode:%d", res.StatusCode)
+			return errors.New("appsecQuery statusCode:500")
 		}
 		return nil
 	}

bouncer_test.go

@@ -18,7 +18,7 @@ func TestServeHTTP(t *testing.T) {
 	cfg.CrowdsecLapiKey = "test"
 
 	ctx := context.Background()
-	next := http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {})
+	next := http.HandlerFunc(func(_ http.ResponseWriter, _ *http.Request) {})
 
 	handler, err := New(ctx, next, cfg, "demo-plugin")
 	if err != nil {
@@ -75,7 +75,7 @@ func TestBouncer_ServeHTTP(t *testing.T) {
 		crowdsecMode           string
 		updateInterval         int64
 		defaultDecisionTimeout int64
-		customHeader           string
+		forwardedCustomHeader  string
 		clientPoolStrategy     *ip.PoolStrategy
 		serverPoolStrategy     *ip.PoolStrategy
 		httpClient             *http.Client
@@ -93,7 +93,7 @@ func TestBouncer_ServeHTTP(t *testing.T) {
 		// TODO: Add test cases.
 	}
 	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
+		t.Run(tt.name, func(_ *testing.T) {
 			bouncer := &Bouncer{
 				next:                   tt.fields.next,
 				name:                   tt.fields.name,
@@ -105,7 +105,7 @@ func TestBouncer_ServeHTTP(t *testing.T) {
 				crowdsecMode:           tt.fields.crowdsecMode,
 				updateInterval:         tt.fields.updateInterval,
 				defaultDecisionTimeout: tt.fields.defaultDecisionTimeout,
-				customHeader:           tt.fields.customHeader,
+				forwardedCustomHeader:  tt.fields.forwardedCustomHeader,
 				clientPoolStrategy:     tt.fields.clientPoolStrategy,
 				serverPoolStrategy:     tt.fields.serverPoolStrategy,
 				httpClient:             tt.fields.httpClient,

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>

docker-compose.local.yml

@@ -1,6 +1,6 @@
 services:
   traefik:
-    image: "traefik:v2.11.0"
+    image: "traefik:v3.0.0"
     container_name: "traefik"
     restart: unless-stopped
     command:
@@ -16,6 +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'
       - ./:/plugins-local/src/github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin
     ports:
       - 8000:80
@@ -47,14 +49,15 @@ services:
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.enabled=true"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.loglevel=DEBUG"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecappsecenabled=true"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecmode=stream"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdseclapikey=40796d93c2958f9e58345514e67740e5="
 
   crowdsec:
-    image: crowdsecurity/crowdsec:1.6.0
+    image: crowdsecurity/crowdsec:v1.6.1-2
     container_name: "crowdsec"
     restart: unless-stopped
     environment:
-      COLLECTIONS: crowdsecurity/traefik crowdsecurity/appsec-virtual-patching
+      COLLECTIONS: crowdsecurity/traefik crowdsecurity/appsec-virtual-patching crowdsecurity/appsec-generic-rules
       CUSTOM_HOSTNAME: crowdsec
       BOUNCER_KEY_TRAEFIK: 40796d93c2958f9e58345514e67740e5=
     volumes:

docker-compose.yml

@@ -1,6 +1,6 @@
 services:
   traefik:
-    image: "traefik:v2.11.0"
+    image: "traefik:v3.0.0"
     container_name: "traefik"
     restart: unless-stopped
     command:
@@ -12,9 +12,11 @@ services:
       - "--entrypoints.web.address=:80"
 
       - "--experimental.plugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
-      - "--experimental.plugins.bouncer.version=v1.1.15"
+      - "--experimental.plugins.bouncer.version=v1.3.0"
     volumes:
       - "/var/run/docker.sock:/var/run/docker.sock:ro"
+      # - './ban.html:/ban.html:ro'
+      # - './captcha.html:/captcha.html:ro'
       - "logs:/var/log/traefik"
     ports:
       - 8000:80
@@ -57,11 +59,11 @@ services:
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.forwardedheaderstrustedips=172.21.0.5"
 
   crowdsec:
-    image: crowdsecurity/crowdsec:v1.6.0
+    image: crowdsecurity/crowdsec:v1.6.1-2
     container_name: "crowdsec"
     restart: unless-stopped
     environment:
-      COLLECTIONS: crowdsecurity/traefik
+      COLLECTIONS: crowdsecurity/traefik crowdsecurity/appsec-virtual-patching crowdsecurity/appsec-generic-rules
       CUSTOM_HOSTNAME: crowdsec
       # We need to register one api key per service we will use
       BOUNCER_KEY_TRAEFIK: FIXME-LAPI-KEY-1=

examples/appsec-enabled/docker-compose.appsec-enabled.yml

@@ -2,7 +2,7 @@ version: "3.8"
 
 services:
   traefik:
-    image: "traefik:v2.10.7"
+    image: "traefik:v3.0.0"
     container_name: "traefik"
     restart: unless-stopped
     command:
@@ -15,12 +15,12 @@ services:
       - "--entrypoints.web.address=:80"
 
       - "--experimental.plugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
-      - "--experimental.plugins.bouncer.version=v1.2.0"
+      - "--experimental.plugins.bouncer.version=v1.3.0"
       # - "--experimental.localplugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
       - logs-appsec-enabled:/var/log/traefik
-      - ./../../:/plugins-local/src/github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin
+      # - ./../../:/plugins-local/src/github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin
     ports:
       - 8000:80
       - 8080:8080
@@ -51,11 +51,11 @@ services:
   
 
   crowdsec:
-    image: crowdsecurity/crowdsec:v1.6.0
+    image: crowdsecurity/crowdsec:v1.6.1-2
     container_name: "crowdsec"
     restart: unless-stopped
     environment:
-      COLLECTIONS: crowdsecurity/traefik
+      COLLECTIONS: crowdsecurity/traefik crowdsecurity/appsec-virtual-patching crowdsecurity/appsec-generic-rules
       CUSTOM_HOSTNAME: crowdsec
       BOUNCER_KEY_TRAEFIK_DEV: 40796d93c2958f9e58345514e67740e5
     volumes:

examples/behind-proxy/docker-compose.yml

@@ -1,8 +1,6 @@
-version: "3.8"
-
 services:
   cloudflare:
-    image: "traefik:v2.10.4"
+    image: "traefik:v3.0.0"
     container_name: "cloudflare"
     restart: unless-stopped
     command:
@@ -21,7 +19,7 @@ services:
       - 8080:8080
 
   traefik:
-    image: "traefik:v2.10.4"
+    image: "traefik:v3.0.0"
     container_name: "traefik"
     restart: unless-stopped
     command:
@@ -35,7 +33,7 @@ services:
       - "--entrypoints.web.forwardedheaders.trustedips=172.21.0.5"
 
       - "--experimental.plugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
-      - "--experimental.plugins.bouncer.version=v1.1.13"
+      - "--experimental.plugins.bouncer.version=v1.3.0"
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
       - logs-traefik:/var/log/traefik
@@ -47,7 +45,7 @@ services:
 
   whoami-foo:
     image: traefik/whoami
-    container_name: "simple-service-foo"
+    container_name: "simple-service-foo-cloudflare"
     restart: unless-stopped
     labels:
       - "traefik.enable=true"
@@ -66,7 +64,7 @@ services:
   
   whoami-bar:
     image: traefik/whoami
-    container_name: "simple-service-bar"
+    container_name: "simple-service-bar-cloudflare"
     restart: unless-stopped
     labels:
       - "traefik.enable=true"
@@ -81,7 +79,7 @@ services:
   
 
   crowdsec:
-    image: crowdsecurity/crowdsec:v1.5.2
+    image: crowdsecurity/crowdsec:v1.6.1-2
     container_name: "crowdsec"
     restart: unless-stopped
     environment:

examples/binary-vm/scripts/install_traefik.sh

@@ -2,7 +2,7 @@
 
 DEBIAN_FRONTEND=noninteractive sudo apt-get update && sudo apt-get install wget -y
 # DEBIAN_FRONTEND=noninteractive sudo apt-get upgrade -y --assume-yes
-wget -O traefik.tar.gz "https://github.com/traefik/traefik/releases/download/v2.10.4/traefik_v2.10.4_linux_amd64.tar.gz"
+wget -O traefik.tar.gz "https://github.com/traefik/traefik/releases/download/v3.0.0/traefik_v3.0.0_linux_amd64.tar.gz"
 tar -zxvf traefik.tar.gz
 # inspired from https://gist.github.com/ubergesundheit/7c9d875befc2d7bfd0bf43d8b3862d85
 sudo mv ./traefik /usr/local/bin/

examples/binary-vm/scripts/install_whoami.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 DEBIAN_FRONTEND=noninteractive sudo apt-get update && apt-get install wget -y
-wget -O whoami.tar.gz "https://github.com/traefik/whoami/releases/download/v1.9.0/whoami_v1.9.0_linux_amd64.tar.gz"
+wget -O whoami.tar.gz "https://github.com/traefik/whoami/releases/download/v1.10.1/whoami_v1.10.1_linux_amd64.tar.gz"
 tar -zxvf whoami.tar.gz
 # inspired from https://gist.github.com/ubergesundheit/7c9d875befc2d7bfd0bf43d8b3862d85
 sudo mv ./whoami /usr/local/bin/

examples/captcha/README.md

@@ -32,7 +32,7 @@ It is not directly accessible from Traefik even when importing the plugin, so [d
 ```yaml 
   ...
   traefik:
-    image: "traefik:v2.11.0"
+    image: "traefik:v3.0.0"
     volumes:
       - './captcha.html:/captcha.html'
   ...
@@ -52,7 +52,7 @@ More information is available on configuring Crowdsec in the [official documenta
 ```yaml
   ...
   crowdsec:
-    image: crowdsecurity/crowdsec:v1.6.0
+    image: crowdsecurity/crowdsec:v1.6.1-2
     volumes:
       # For captcha and ban mixed decision
       - './profiles.yaml:/etc/crowdsec/profiles.yaml:ro' 
@@ -144,3 +144,18 @@ sequenceDiagram
     PluginCache-->>TraefikPlugin: Yes a ban Decision
     TraefikPlugin->>User: No, HTTP 403
 ```
+
+## Captcha Configuration:
+
+- Recaptcha
+
+Choose v2 (challenge) and configure the domain to protect:  
+![Recaptcha image](image_recaptcha.png)
+
+- Turnstile
+
+TODO
+
+- Hcatpcha
+
+TODO

examples/captcha/docker-compose.yml

@@ -1,6 +1,6 @@
 services:
   traefik:
-    image: "traefik:v2.11.0"
+    image: "traefik:v3.0.0"
     container_name: "traefik"
     restart: unless-stopped
     command:
@@ -12,14 +12,14 @@ services:
       - "--providers.docker.exposedbydefault=false"
       - "--entrypoints.web.address=:80"
 
-      # - "--experimental.plugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
+      - "--experimental.plugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
-      # - "--experimental.plugins.bouncer.version=v1.2.0"
+      - "--experimental.plugins.bouncer.version=v1.3.0"
-      - "--experimental.localplugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
+      # - "--experimental.localplugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
       - logs-captcha-enabled:/var/log/traefik
       - './captcha.html:/captcha.html'
-      - ./../../:/plugins-local/src/github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin
+      # - ./../../:/plugins-local/src/github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin
     ports:
       - 8000:80
       - 8080:8080
@@ -55,7 +55,7 @@ services:
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaHTMLFilePath=/captcha.html"
 
   crowdsec:
-    image: crowdsecurity/crowdsec:v1.6.0
+    image: crowdsecurity/crowdsec:v1.6.1-2
     container_name: "crowdsec"
     restart: unless-stopped
     environment:

examples/custom-ban-page/README.md

@@ -0,0 +1,47 @@
+# Example
+## Adding a custom ban page
+
+Traefik can return a custom HTML ban page along with the 403 HTTP response code.  
+This can be usefull as some browser (Firefox for instance) return a 403 blank webpage and we can mistake a server/reverse-proxy error with a ban from Crowdsec.  
+
+### Traefik configuration
+
+
+```yaml
+  labels:
+      # Define ban HTML file path
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.banHtmlFilePath=/ban.html"
+```
+
+The ban HTML file must be present in the Traefik container (bind mounted or added during a custom build).  
+It is not directly accessible from Traefik even when importing the plugin, so [download](https://raw.githubusercontent.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/master/ban.html) it locally to expose it to Traefik.
+
+```yaml 
+  ...
+  traefik:
+    image: "traefik:v2.11.0"
+    volumes:
+      - './ban.html:/ban.html'
+  ...
+```
+
+## Exemple navigation
+
+We can try to query normally the whoami server:
+```bash
+curl http://localhost:8000/foo
+```
+
+We can try to ban ourself
+
+```bash
+docker exec crowdsec cscli decisions add --ip 10.0.0.20 -d 4h --type ban
+```
+![image decision ban](image_decision_ban.png)
+
+We will see in the browser the ban custom page:
+
+To play the demo environment run:
+```bash
+make run_custom_ban_page
+```

examples/custom-ban-page/acquis.yaml

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

examples/custom-ban-page/ban.html

@@ -0,0 +1,330 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <title>CrowdSec Access Forbidden</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>
+</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 Access Forbidden</h1>
+      </div>
+      <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" />
+            <path
+              d="M51 146c0 2.7.1 5.5.3 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 0-6.6-1-9.2-2.4.9 4.6 3.7 8.3 7.3 9.2M143.9 105c-1.9-.4-3.5-1.2-4.9-2.3 1.4 5.6 2.5 11.3 4 17 1.2 5 2 10 2.4 15 .6 7.8-4.5 14.5-10.9 14.5h-15c-6.4 0-11.5-6.7-11-14.5.5-5 1.3-10 2.6-15 1.3-5.3 2.3-10.5 3.6-15.7-2.2 1.2-4.8 1.9-7.7 2-4.7.1-9.4-.3-14-1-4-.4-6.7-3-8-6.7-1.3-3.4-2-7-3.3-10.4-.5-1.5-1.6-2.8-2.4-4.2-.4-.6-.8-1.2-.9-1.8v-7.8a77 77 0 0124.5-3c6.1 0 12 1 17.8 3.2 4.7 1.7 9.7 1.8 14.4 0 9-3.4 18.2-3.8 27.5-3 4.9.5 9.8 1.6 14.8 2.4v8.2c0 .6-.3 1.5-.7 1.7-2 .9-2.2 2.7-2.7 4.5-.9 3.2-1.8 6.4-2.9 9.5a11 11 0 01-8.8 7.7 40.6 40.6 0 01-18.4-.2m29.4 80.6c-3.2-26.8-6.4-50-8.9-60.7a14.3 14.3 0 0014.1-14h.4a9 9 0 005.6-16.5 14.3 14.3 0 00-3.7-27.2 9 9 0 00-6.9-14.6c2.4-1.1 4.5-3 5.8-5 3.4-5.3 4-29-8-44.4-5-6.3-9.8-2.5-10 1.8-1 13.2-1.1 23-4.5 34.3a9 9 0 00-16-4.1 14.3 14.3 0 00-28.4 0 9 9 0 00-16 4.1c-3.4-11.2-3.5-21.1-4.4-34.3-.3-4.3-5.2-8-10-1.8-12 15.3-11.5 39-8.1 44.4 1.3 2 3.4 3.9 5.8 5a9 9 0 00-7 14.6 14.3 14.3 0 00-3.6 27.2A9 9 0 0075 111h.5a14.5 14.5 0 0014.3 14c-4 17.2-10 66.3-15 111.3l-1.3 13.4a1656.4 1656.4 0 01106.6 0l-1.4-12.7-5.4-51.3" />
+            <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>
+</body>
+
+</html>

examples/custom-ban-page/docker-compose.yml

@@ -0,0 +1,67 @@
+services:
+  traefik:
+    image: "traefik:v3.0.0"
+    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"
+
+      - "--experimental.plugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
+      - "--experimental.plugins.bouncer.version=v1.3.0"
+      # - "--experimental.localplugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock:ro
+      - logs-custom-ban-page-enabled:/var/log/traefik
+      - './ban.html:/ban.html'
+      # - ./../../:/plugins-local/src/github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin
+    ports:
+      - 8000:80
+      - 8080:8080
+    depends_on:
+      - crowdsec
+
+  whoami1:
+    image: traefik/whoami
+    container_name: "simple-service-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.enabled=true"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdseclapikey=40796d93c2958f9e58345514e67740e5"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.loglevel=DEBUG"
+      # Define ban HTML file path
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.banHtmlFilePath=/ban.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:
+      - './acquis.yaml:/etc/crowdsec/acquis.yaml:ro'
+      - logs-custom-ban-page-enabled:/var/log/traefik:ro
+      - crowdsec-db-custom-ban-page-enabled:/var/lib/crowdsec/data/
+      - crowdsec-config-custom-ban-page-enabled:/etc/crowdsec/
+    labels:
+      - "traefik.enable=false"
+
+volumes:
+  logs-custom-ban-page-enabled:
+  crowdsec-db-custom-ban-page-enabled:
+  crowdsec-config-custom-ban-page-enabled:

examples/kubernetes/README.md

@@ -32,13 +32,15 @@ minikube start
 helm repo add traefik https://traefik.github.io/charts
 helm repo update
 kubectl create ns traefik
-helm upgrade --version v26.1.0 --install --namespace=traefik \
+helm upgrade --version v28.0.0 --install --namespace=traefik \
     --values=./traefik/values.yml \
     traefik traefik/traefik
 ```
 
 _A [bug](https://github.com/traefik/traefik-helm-chart/commit/e7ce1b410c858642069033305eb6362f26689f16) has been fixed in chart 26.1.0 that could prevent plugin to be loaded_
 
+_v28.0.0 of the Traefik helm chart is only compatible with v3 of Traefik_
+
 #### View the Traefik dashboard
 
 > Port forward the dashboard:

examples/kubernetes/crowdsec/values.yml

@@ -1,5 +1,5 @@
 image:
-  tag: v1.6.0
+  tag: v1.6.1-2
 
 agent:
   acquisition:

examples/kubernetes/traefik/dashboard.yml

@@ -1,5 +1,5 @@
 # dashboard.yaml
-apiVersion: traefik.containo.us/v1alpha1
+apiVersion: traefik.io/v1alpha1
 kind: IngressRoute
 metadata:
   name: dashboard

examples/kubernetes/traefik/plugin.yml

@@ -1,4 +1,4 @@
-apiVersion: traefik.containo.us/v1alpha1
+apiVersion: traefik.io/v1alpha1
 kind: Middleware
 metadata:
     name: bouncer

examples/kubernetes/traefik/values.yml

@@ -1,11 +1,12 @@
 image:
-  tag: v2.11
+  tag: v3.0.0
 
 logs:
   general:
     level: DEBUG
   access:
     enabled: true
+    format: json
     fields:
       headers: 
         defaultmode: keep
@@ -14,4 +15,4 @@ experimental:
   plugins:
     bouncer:
       moduleName: "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
-      version: "v1.2.0"
+      version: "v1.3.0"

examples/redis-cache/docker-compose.yml

@@ -1,8 +1,6 @@
-version: "3.8"
-
 services:
   traefik:
-    image: "traefik:v2.10.4"
+    image: "traefik:v3.0.0"
     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=v1.1.13"
+      - "--experimental.plugins.bouncer.version=v1.3.0"
       # - "--experimental.localplugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
@@ -52,7 +50,7 @@ services:
 
   whoami-redis-secure:
     image: traefik/whoami
-    container_name: "simple-service-bar"
+    container_name: "simple-service-bar-redis"
     restart: unless-stopped
     labels:
       - "traefik.enable=true"
@@ -73,7 +71,7 @@ services:
 
 
   crowdsec:
-    image: crowdsecurity/crowdsec:v1.5.2
+    image: crowdsecurity/crowdsec:v1.6.1-2
     container_name: "crowdsec"
     restart: unless-stopped
     environment:

examples/standalone-mode/README.md

@@ -3,7 +3,9 @@ You need to create a crowdsec API credentials for the CAPI.
 You can follow the documentation here: https://docs.crowdsec.net/docs/central_api/intro
 
 ```bash
-curl -X POST "https://api.crowdsec.net/v2/watchers" -H  "accept: application/json" -H  "Content-Type: application/json" -d "{ \"password\": \"PASSWORD\",  \"machine_id\": \"LOGIN\"}"
+LOGIN=...
+PASSWORD=...
+curl -X POST "https://api.crowdsec.net/v2/watchers" -H "accept: application/json" -H "Content-Type: application/json" -d "{ \"password\": \"$PASSWORD\",  \"machine_id\": \"$LOGIN\"}"
 ```
 
 These CAPI credentials must be set in your docker-compose.yml or in your config files

examples/standalone-mode/docker-compose.yml

@@ -1,8 +1,6 @@
-version: "3.8"
-
 services:
   traefik:
-    image: "traefik:v2.10.4"
+    image: "traefik:v3.0.0"
     container_name: "traefik"
     restart: unless-stopped
     command:
@@ -15,16 +13,18 @@ services:
       - "--entrypoints.web.address=:80"
 
       - "--experimental.plugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
-      - "--experimental.plugins.bouncer.version=v1.1.13"
+      - "--experimental.plugins.bouncer.version=v1.3.0"
+      # - "--experimental.localplugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
+      # - ./../../:/plugins-local/src/github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin
     ports:
       - 80:80
       - 8080:8080
 
   whoami-foo:
     image: traefik/whoami
-    container_name: "simple-service-foo"
+    container_name: "simple-service-foo-alone"
     restart: unless-stopped
     labels:
       - "traefik.enable=true"
@@ -35,11 +35,8 @@ services:
 
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.enabled=true"
       # - "traefik.http.middlewares.crowdsec.plugin.bouncer.loglevel=DEBUG"
-      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecmode=alone"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecMode=alone"
-      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdseclapikey=40796d93c2958f9e58345514e67740e5"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.CrowdsecCapiMachineId=FIXME"
-      - "traefik.http.middlewares.crowdsec.plugin.bouncer.CrowdsecCapiMachineId=logincacacalfkrjebfreifgzfblezgyfoerxsqxsqxsqxsr"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.CrowdsecCapiPassword=FIXME"
-      - "traefik.http.middlewares.crowdsec.plugin.bouncer.CrowdsecCapiPassword=Password2"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdseccapiscenarios=crowdsecurity/sshd,crowdsecurity/asterisk_bf,crowdsecurity/asterisk_user_enum,crowdsecurity/base-http-scenarios"
 
-volumes:
-  logs-local:

examples/tls-auth/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:22.04
+FROM ubuntu:24.04
 
 RUN apt-get update && apt-get install -y curl wget
 RUN VERSION=$(curl --silent "https://api.github.com/repos/cloudflare/cfssl/releases/latest" | grep '"tag_name"' | sed -E 's/.*"([^"]+)".*/\1/') && VNUMBER=${VERSION#"v"} && wget https://github.com/cloudflare/cfssl/releases/download/${VERSION}/cfssl_${VNUMBER}_linux_amd64 -O cfssl && chmod +x cfssl && mv cfssl /usr/local/bin

examples/tls-auth/README.md

@@ -72,11 +72,11 @@ The service `whoami-bar` will authenticate with a **client certificate** signed
 
 Access to a route that communicate via https and authenticate with API-key:
 ```
-curl http://localhost:80/foo
+curl http://localhost:8000/foo
 ```
 Access to a route that communicate via https and authenticate with a client certificate:
 ```
-curl http://localhost:80/bar
+curl http://localhost:8000/bar
 ```
 Access to the traefik dashboard
 ```
@@ -89,5 +89,4 @@ make run_tlsauth
 ```
 
 Note:
-> This example is still in Beta and use a new version of Crowdsec (v1.4.3) at time of writing
+> Traefik need to be restart if certificates are regenerated after his launch
-A functionnality has been disabled in Crowdsec in order to make the example work DISABLE_AGENT: "true"

examples/tls-auth/docker-compose.yml

@@ -1,8 +1,6 @@
-version: "3.8"
-
 services:
   traefik:
-    image: "traefik:v2.10.4"
+    image: "traefik:v3.0.0"
     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=v1.1.13"
+      - "--experimental.plugins.bouncer.version=v1.3.0"
       # - "--experimental.localplugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
@@ -25,10 +23,11 @@ services:
       # - ./../../:/plugins-local/src/github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin
 
     ports:
-      - 80:80
+      - 8000:80
       - 8080:8080
     depends_on:
       - crowdsec
+      - gencert
 
 # Use HTTPS scheme but with lapikey authentication
   # whoami-foo:
@@ -66,7 +65,7 @@ services:
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecLapiTLSCertificateBouncerKeyFile=/etc/traefik/crowdsec-certs/bouncer-key.pem"      
 
   crowdsec:
-    image: crowdsecurity/crowdsec:v1.5.2
+    image: crowdsecurity/crowdsec:v1.6.1-2
     container_name: "crowdsec"
     restart: unless-stopped
     environment:
@@ -80,11 +79,13 @@ services:
       CERT_FILE: "/etc/crowdsec/certs/server.pem"
       KEY_FILE: "/etc/crowdsec/certs/server-key.pem"
       CACERT_FILE: "/etc/crowdsec/certs/inter.pem"
+      # CLIENT_CERT_FILE: "/etc/crowdsec/certs/bouncer.pem"
+      # CLIENT_CERT_FILE: "/etc/crowdsec/certs/bouncer.pem"
       AGENTS_ALLOWED_OU: "agent-ou"
       BOUNCERS_ALLOWED_OU: "bouncer-ou"
       LEVEL_DEBUG: "true"
       # Disabled because it restart in loop otherwise
-      DISABLE_AGENT: "true"
+      # DISABLE_AGENT: "true"
       # Disabled for the examples
       DISABLE_ONLINE_API: "true"
     volumes:
@@ -97,6 +98,8 @@ services:
       - crowdsec-config-tls-auth:/etc/crowdsec/
     labels:
       - "traefik.enable=false"
+    depends_on:
+      - gencert
   
   gencert:
     build: .

examples/trusted-ips/docker-compose.yml

@@ -1,8 +1,6 @@
-version: "3.8"
-
 services:
   traefik:
-    image: "traefik:v2.10.4"
+    image: "traefik:v3.0.0"
     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=v1.1.13"
+      - "--experimental.plugins.bouncer.version=v1.3.0"
       # - "--experimental.localplugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
@@ -29,7 +27,7 @@ services:
 
   whoami1:
     image: traefik/whoami
-    container_name: "simple-service-foo"
+    container_name: "simple-service-foo-trustedips"
     restart: unless-stopped
     labels:
       - "traefik.enable=true"
@@ -48,7 +46,7 @@ services:
   
   whoami2:
     image: traefik/whoami
-    container_name: "simple-service-bar"
+    container_name: "simple-service-bar-trustedips"
     restart: unless-stopped
     labels:
       - "traefik.enable=true"
@@ -67,7 +65,7 @@ services:
 
 
   crowdsec:
-    image: crowdsecurity/crowdsec:v1.5.2
+    image: crowdsecurity/crowdsec:v1.6.1-2
     container_name: "crowdsec"
     restart: unless-stopped
     environment:

go.mod

@@ -1,8 +1,8 @@
 module github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin
 
-go 1.19
+go 1.22
 
 require (
 	github.com/leprosus/golang-ttl-map v1.1.7
-	github.com/maxlerebourg/simpleredis v1.0.9
+	github.com/maxlerebourg/simpleredis v1.0.11
 )

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 v1.0.9 h1:aj1hKaYPeOVE4Ksu3TV/zsreUDDWOpKXBAvoFysiqII=
+github.com/maxlerebourg/simpleredis v1.0.11 h1:B33TUeIrHtJH2/Qj2bRdU+UZ1BvZwFyP55JWMxHirWg=
-github.com/maxlerebourg/simpleredis v1.0.9/go.mod h1:/DH8zOK6kDskSqoX/m5CJJdNGfkIQZd/ERBJgytDDSk=
+github.com/maxlerebourg/simpleredis v1.0.11/go.mod h1:lT4LX02SOsE9PxUcSrz1QW5ZnO86gPbaiYBxmtcXEls=

pkg/cache/cache.go

@@ -3,6 +3,7 @@
 package cache
 
 import (
+	"errors"
 	"fmt"
 
 	ttl_map "github.com/leprosus/golang-ttl-map"
@@ -22,6 +23,8 @@ const (
 	CaptchaDoneValue = "d"
 	// CacheMiss error string when cache is miss.
 	CacheMiss = "cache:miss"
+	// CacheUnreachable error string when cache is unreachable.
+	CacheUnreachable = "cache:unreachable"
 )
 
 //nolint:gochecknoglobals
@@ -38,7 +41,7 @@ func (localCache) get(key string) (string, error) {
 	if isCached && isValid && len(valueString) > 0 {
 		return valueString, nil
 	}
-	return "", fmt.Errorf(CacheMiss)
+	return "", errors.New(CacheMiss)
 }
 
 func (localCache) set(key, value string, duration int64) {
@@ -59,21 +62,25 @@ func (redisCache) get(key string) (string, error) {
 	if err == nil && len(valueString) > 0 {
 		return valueString, nil
 	}
-	if err.Error() == simpleredis.RedisMiss {
+	errRedisMessage := err.Error()
-		return "", fmt.Errorf(CacheMiss)
+	if errRedisMessage == simpleredis.RedisMiss {
+		return "", errors.New(CacheMiss)
+	}
+	if errRedisMessage == simpleredis.RedisUnreachable {
+		return "", errors.New(CacheUnreachable)
 	}
 	return "", err
 }
 
 func (rc redisCache) set(key, value string, duration int64) {
 	if err := redis.Set(key, []byte(value), duration); err != nil {
-		rc.log.Error(fmt.Sprintf("cache:setDecisionRedisCache %s", err.Error()))
+		rc.log.Error("cache:setDecisionRedisCache" + err.Error())
 	}
 }
 
 func (rc redisCache) delete(key string) {
 	if err := redis.Del(key); err != nil {
-		rc.log.Error(fmt.Sprintf("cache:deleteDecisionRedisCache %s", err.Error()))
+		rc.log.Error("cache:deleteDecisionRedisCache " + err.Error())
 	}
 }
 

pkg/cache/cache_test.go

@@ -11,7 +11,7 @@ import (
 func Test_Get(t *testing.T) {
 	IPInCache := "10.0.0.10"
 	IPNotInCache := "10.0.0.20"
-	client := &Client{cache: &localCache{}, log: logger.New("INFO")}
+	client := &Client{cache: &localCache{}, log: logger.New("INFO", "")}
 	client.Set(IPInCache, BannedValue, 10)
 	type args struct {
 		clientIP string
@@ -47,7 +47,7 @@ func Test_Get(t *testing.T) {
 }
 
 func Test_Set(t *testing.T) {
-	client := &Client{cache: &localCache{}, log: logger.New("INFO")}
+	client := &Client{cache: &localCache{}, log: logger.New("INFO", "")}
 	IPInCache := "10.0.0.11"
 	type args struct {
 		clientIP string
@@ -88,7 +88,7 @@ func Test_Set(t *testing.T) {
 func Test_Delete(t *testing.T) {
 	IPInCache := "10.0.0.12"
 	IPNotInCache := "10.0.0.22"
-	client := &Client{cache: &localCache{}, log: logger.New("INFO")}
+	client := &Client{cache: &localCache{}, log: logger.New("INFO", "")}
 	client.Set(IPInCache, BannedValue, 10)
 	type args struct {
 		clientIP string

pkg/captcha/captcha.go

@@ -7,7 +7,7 @@ import (
 	"html/template"
 	"net/http"
 	"net/url"
-	"os"
+	"strings"
 
 	cache "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/cache"
 	configuration "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/configuration"
@@ -20,8 +20,9 @@ type Client struct {
 	provider                string
 	siteKey                 string
 	secretKey               string
+	remediationCustomHeader string
 	gracePeriodSeconds      int64
-	htmlPage           *template.Template
+	captchaTemplate         *template.Template
 	cacheClient             *cache.Client
 	httpClient              *http.Client
 	log                     *logger.Log
@@ -48,32 +49,14 @@ var (
 		},
 		configuration.TurnstileProvider: {
 			js:       "https://challenges.cloudflare.com/turnstile/v0/api.js",
-			key:      "cf-captcha",
+			key:      "cf-turnstile",
 			validate: "https://challenges.cloudflare.com/turnstile/v0/siteverify",
 		},
 	}
 )
 
-func compileTemplate(path string) (*template.Template, error) {
-	var err error
-	if path == "" {
-		return nil, fmt.Errorf("no captcha template provided")
-	}
-	//nolint:gosec
-	b, err := os.ReadFile(path)
-	if err != nil {
-		return nil, err
-	}
-	html := string(b)
-	compiledTemplate, err := template.New("captcha").Parse(html)
-	if err != nil {
-		return nil, fmt.Errorf("impossible to compile captcha template: %w", err)
-	}
-	return compiledTemplate, nil
-}
-
 // New Initialize captcha client.
-func (c *Client) New(log *logger.Log, cacheClient *cache.Client, httpClient *http.Client, provider, siteKey, secretKey, htmlPagePath string, gracePeriodSeconds int64) error {
+func (c *Client) New(log *logger.Log, cacheClient *cache.Client, httpClient *http.Client, provider, siteKey, secretKey, remediationCustomHeader, captchaTemplatePath string, gracePeriodSeconds int64) error {
 	c.Valid = provider != ""
 	if !c.Valid {
 		return nil
@@ -81,11 +64,9 @@ func (c *Client) New(log *logger.Log, cacheClient *cache.Client, httpClient *htt
 	c.siteKey = siteKey
 	c.secretKey = secretKey
 	c.provider = provider
-	html, err := compileTemplate(htmlPagePath)
+	c.remediationCustomHeader = remediationCustomHeader
-	if err != nil {
+	html, _ := configuration.GetHTMLTemplate(captchaTemplatePath)
-		return err
+	c.captchaTemplate = html
-	}
-	c.htmlPage = html
 	c.gracePeriodSeconds = gracePeriodSeconds
 	c.log = log
 	c.httpClient = httpClient
@@ -97,29 +78,34 @@ func (c *Client) New(log *logger.Log, cacheClient *cache.Client, httpClient *htt
 func (c *Client) ServeHTTP(rw http.ResponseWriter, r *http.Request, remoteIP string) {
 	valid, err := c.Validate(r)
 	if err != nil {
-		c.log.Debug(fmt.Sprintf("captcha:ServeHTTP:validate %s", err.Error()))
+		c.log.Info("captcha:ServeHTTP:validate " + err.Error())
 		rw.WriteHeader(http.StatusBadRequest)
 		return
 	}
 	if valid {
 		c.log.Debug("captcha:ServeHTTP captcha:valid")
-		c.cacheClient.Set(fmt.Sprintf("%s_captcha", remoteIP), cache.CaptchaDoneValue, c.gracePeriodSeconds)
+		c.cacheClient.Set(remoteIP+"_captcha", cache.CaptchaDoneValue, c.gracePeriodSeconds)
 		http.Redirect(rw, r, r.URL.String(), http.StatusFound)
 		return
 	}
-	err = c.htmlPage.Execute(rw, map[string]string{
+	rw.Header().Set("Content-Type", "text/html; charset=utf-8")
+	if c.remediationCustomHeader != "" {
+		rw.Header().Set(c.remediationCustomHeader, "captcha")
+	}
+	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,
 	})
 	if err != nil {
-		c.log.Info("captcha:ServeHTTP Can't serve HTML")
+		c.log.Info("captcha:ServeHTTP captchaTemplateServe " + err.Error())
 	}
 }
 
 // Check Verify if the captcha is already done.
 func (c *Client) Check(remoteIP string) bool {
-	value, _ := c.cacheClient.Get(fmt.Sprintf("%s_captcha", remoteIP))
+	value, _ := c.cacheClient.Get(remoteIP + "_captcha")
 	passed := value == cache.CaptchaDoneValue
 	c.log.Debug(fmt.Sprintf("captcha:Check ip:%s pass:%v", remoteIP, passed))
 	return passed
@@ -132,10 +118,10 @@ type responseProvider struct {
 // Validate Verify the captcha from provider API.
 func (c *Client) Validate(r *http.Request) (bool, error) {
 	if r.Method != http.MethodPost {
-		c.log.Debug(fmt.Sprintf("captcha:Validate invalid method: %s", r.Method))
+		c.log.Debug("captcha:Validate invalid method: " + r.Method)
 		return false, nil
 	}
-	var response = r.FormValue(fmt.Sprintf("%s-response", captcha[c.provider].key))
+	var response = r.FormValue(captcha[c.provider].key + "-response")
 	if response == "" {
 		c.log.Debug("captcha:Validate no captcha response found in request")
 		return false, nil
@@ -149,10 +135,11 @@ func (c *Client) Validate(r *http.Request) (bool, error) {
 	}
 	defer func() {
 		if err = res.Body.Close(); err != nil {
-			c.log.Error(fmt.Sprintf("captcha:Validate %s", err.Error()))
+			c.log.Error("captcha:Validate " + err.Error())
 		}
 	}()
-	if res.Header.Get("content-type") != "application/json" {
+	if !strings.Contains(res.Header.Get("Content-Type"), "application/json") {
+		c.log.Debug("captcha:Validate responseType:noJson")
 		return false, nil
 	}
 	var captchaResponse responseProvider

pkg/configuration/configuration.go

@@ -4,7 +4,9 @@ package configuration
 import (
 	"crypto/tls"
 	"crypto/x509"
+	"errors"
 	"fmt"
+	"html/template"
 	"net/http"
 	"net/url"
 	"os"
@@ -26,6 +28,9 @@ const (
 	AppsecMode        = "appsec"
 	HTTPS             = "https"
 	HTTP              = "http"
+	LogDEBUG          = "DEBUG"
+	LogINFO           = "INFO"
+	LogERROR          = "ERROR"
 	HcaptchaProvider  = "hcaptcha"
 	RecaptchaProvider = "recaptcha"
 	TurnstileProvider = "turnstile"
@@ -35,12 +40,17 @@ const (
 type Config struct {
 	Enabled                                  bool     `json:"enabled,omitempty"`
 	LogLevel                                 string   `json:"logLevel,omitempty"`
+	LogFilePath                              string   `json:"logFilePath,omitempty"`
 	CrowdsecMode                             string   `json:"crowdsecMode,omitempty"`
 	CrowdsecAppsecEnabled                    bool     `json:"crowdsecAppsecEnabled,omitempty"`
 	CrowdsecAppsecHost                       string   `json:"crowdsecAppsecHost,omitempty"`
+	CrowdsecAppsecPath                       string   `json:"crowdsecAppsecPath,omitempty"`
 	CrowdsecAppsecFailureBlock               bool     `json:"crowdsecAppsecFailureBlock,omitempty"`
+	CrowdsecAppsecUnreachableBlock           bool     `json:"crowdsecAppsecUnreachableBlock,omitempty"`
+	CrowdsecAppsecBodyLimit                  int64    `json:"crowdsecAppsecBodyLimit,omitempty"`
 	CrowdsecLapiScheme                       string   `json:"crowdsecLapiScheme,omitempty"`
 	CrowdsecLapiHost                         string   `json:"crowdsecLapiHost,omitempty"`
+	CrowdsecLapiPath                         string   `json:"crowdsecLapiPath,omitempty"`
 	CrowdsecLapiKey                          string   `json:"crowdsecLapiKey,omitempty"`
 	CrowdsecLapiKeyFile                      string   `json:"crowdsecLapiKeyFile,omitempty"`
 	CrowdsecLapiTLSInsecureVerify            bool     `json:"crowdsecLapiTlsInsecureVerify,omitempty"`
@@ -56,8 +66,11 @@ type Config struct {
 	CrowdsecCapiPasswordFile                 string   `json:"crowdsecCapiPasswordFile,omitempty"`
 	CrowdsecCapiScenarios                    []string `json:"crowdsecCapiScenarios,omitempty"`
 	UpdateIntervalSeconds                    int64    `json:"updateIntervalSeconds,omitempty"`
+	UpdateMaxFailure                         int      `json:"updateMaxFailure,omitempty"`
 	DefaultDecisionSeconds                   int64    `json:"defaultDecisionSeconds,omitempty"`
+	RemediationStatusCode                    int      `json:"remediationStatusCode,omitempty"`
 	HTTPTimeoutSeconds                       int64    `json:"httpTimeoutSeconds,omitempty"`
+	RemediationHeadersCustomName             string   `json:"remediationHeadersCustomName,omitempty"`
 	ForwardedHeadersCustomName               string   `json:"forwardedHeadersCustomName,omitempty"`
 	ForwardedHeadersTrustedIPs               []string `json:"forwardedHeadersTrustedIps,omitempty"`
 	ClientTrustedIPs                         []string `json:"clientTrustedIps,omitempty"`
@@ -66,6 +79,8 @@ type Config struct {
 	RedisCachePassword                       string   `json:"redisCachePassword,omitempty"`
 	RedisCachePasswordFile                   string   `json:"redisCachePasswordFile,omitempty"`
 	RedisCacheDatabase                       string   `json:"redisCacheDatabase,omitempty"`
+	RedisCacheUnreachableBlock               bool     `json:"redisCacheUnreachableBlock,omitempty"`
+	BanHTMLFilePath                          string   `json:"banHtmlFilePath,omitempty"`
 	CaptchaHTMLFilePath                      string   `json:"captchaHtmlFilePath,omitempty"`
 	CaptchaProvider                          string   `json:"captchaProvider,omitempty"`
 	CaptchaSiteKey                           string   `json:"captchaSiteKey,omitempty"`
@@ -88,23 +103,32 @@ func contains(source []string, target string) bool {
 func New() *Config {
 	return &Config{
 		Enabled:                        false,
-		LogLevel:                      "INFO",
+		LogLevel:                       LogINFO,
+		LogFilePath:                    "",
 		CrowdsecMode:                   LiveMode,
 		CrowdsecAppsecEnabled:          false,
 		CrowdsecAppsecHost:             "crowdsec:7422",
+		CrowdsecAppsecPath:             "/",
 		CrowdsecAppsecFailureBlock:     true,
+		CrowdsecAppsecUnreachableBlock: true,
+		CrowdsecAppsecBodyLimit:        10485760,
 		CrowdsecLapiScheme:             HTTP,
 		CrowdsecLapiHost:               "crowdsec:8080",
+		CrowdsecLapiPath:               "/",
 		CrowdsecLapiKey:                "",
 		CrowdsecLapiTLSInsecureVerify:  false,
 		UpdateIntervalSeconds:          60,
+		UpdateMaxFailure:               0,
 		DefaultDecisionSeconds:         60,
+		RemediationStatusCode:          http.StatusForbidden,
 		HTTPTimeoutSeconds:             10,
 		CaptchaProvider:                "",
 		CaptchaSiteKey:                 "",
 		CaptchaSecretKey:               "",
-		CaptchaHTMLFilePath:           "/captcha.html",
 		CaptchaGracePeriodSeconds:      1800,
+		CaptchaHTMLFilePath:            "/captcha.html",
+		BanHTMLFilePath:                "",
+		RemediationHeadersCustomName:   "",
 		ForwardedHeadersCustomName:     "X-Forwarded-For",
 		ForwardedHeadersTrustedIPs:     []string{},
 		ClientTrustedIPs:               []string{},
@@ -112,6 +136,7 @@ func New() *Config {
 		RedisCacheHost:                 "redis:6379",
 		RedisCachePassword:             "",
 		RedisCacheDatabase:             "",
+		RedisCacheUnreachableBlock:     true,
 	}
 }
 
@@ -119,7 +144,7 @@ func New() *Config {
 func GetVariable(config *Config, key string) (string, error) {
 	value := ""
 	object := reflect.Indirect(reflect.ValueOf(config))
-	field := object.FieldByName(fmt.Sprintf("%sFile", key))
+	field := object.FieldByName(key + "File")
 	// Here linter say you should simplify this code, but lets not, performance is important not clarity and complexity
 	fp := field.String()
 	if fp != "" {
@@ -142,6 +167,25 @@ func GetVariable(config *Config, key string) (string, error) {
 	return strings.TrimSpace(value), nil
 }
 
+// GetHTMLTemplate get compiled HTML template.
+func GetHTMLTemplate(path string) (*template.Template, error) {
+	var err error
+	if path == "" {
+		return nil, errors.New("no html template provided")
+	}
+	//nolint:gosec
+	b, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+	html := string(b)
+	compiledTemplate, err := template.New("html").Parse(html)
+	if err != nil {
+		return nil, fmt.Errorf("impossible to compile html template: %w", err)
+	}
+	return compiledTemplate, nil
+}
+
 // ValidateParams validate all the param gave by user.
 //
 //nolint:gocyclo,gocognit
@@ -178,13 +222,21 @@ func ValidateParams(config *Config) error {
 		if _, err := GetVariable(config, "CaptchaSecretKey"); err != nil {
 			return err
 		}
+		if _, err := GetHTMLTemplate(config.CaptchaHTMLFilePath); err != nil {
+			return err
+		}
+	}
+	if config.BanHTMLFilePath != "" {
+		if _, err := GetHTMLTemplate(config.BanHTMLFilePath); err != nil {
+			return err
+		}
 	}
 
-	if err := validateURL("CrowdsecLapi", config.CrowdsecLapiScheme, config.CrowdsecLapiHost); err != nil {
+	if err := validateURL("CrowdsecLapi", config.CrowdsecLapiScheme, config.CrowdsecLapiHost, config.CrowdsecLapiPath); err != nil {
 		return err
 	}
 
-	if err := validateURL("CrowdsecAppsec", config.CrowdsecLapiScheme, config.CrowdsecAppsecHost); err != nil {
+	if err := validateURL("CrowdsecAppsec", config.CrowdsecLapiScheme, config.CrowdsecAppsecHost, config.CrowdsecAppsecPath); err != nil {
 		return err
 	}
 
@@ -202,7 +254,7 @@ func ValidateParams(config *Config) error {
 	}
 	// We need to either have crowdsecLapiKey defined or the BouncerCert and Bouncerkey
 	if lapiKey == "" && (certBouncer == "" || certBouncerKey == "") {
-		return fmt.Errorf("CrowdsecLapiKey || (CrowdsecLapiTLSCertificateBouncer && CrowdsecLapiTLSCertificateBouncerKey): cannot be all empty")
+		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 {
@@ -217,14 +269,25 @@ 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 config.LogFilePath != "" {
+		_, err = os.OpenFile(filepath.Clean(config.LogFilePath), os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0600)
+		if err != nil {
+			return fmt.Errorf("LogFilePath is not writable %w", err)
+		}
+	}
 	return nil
 }
 
-func validateURL(variable, scheme, host string) error {
+func validateURL(variable, scheme, host, path string) error {
-	// This only check that the format of the URL scheme://host is correct and do not make requests
+	// This only check that the format of the URL scheme://host/path is correct and do not make requests
-	testURL := url.URL{Scheme: scheme, Host: host}
+	testURL := url.URL{Scheme: scheme, Host: host, Path: path}
 	if _, err := http.NewRequest(http.MethodGet, testURL.String(), nil); err != nil {
-		return fmt.Errorf("CrowdsecLapiScheme://%sHost: '%v://%v' must be an URL", variable, scheme, host)
+		return fmt.Errorf("CrowdsecLapiScheme://%sHost: '%v://%v%v' must be a valid URL", variable, scheme, host, path)
 	}
 	return nil
 }
@@ -235,7 +298,7 @@ func validateURL(variable, scheme, host string) error {
 // See https://httpwg.github.io/specs/rfc7230.html#rule.token.separators
 func validateParamsAPIKey(lapiKey string) error {
 	reg := regexp.MustCompile("^[a-zA-Z0-9 !#$%&'*+-.^_`|~=/]*$")
-	if !reg.Match([]byte(lapiKey)) {
+	if !reg.MatchString(lapiKey) {
 		return fmt.Errorf("CrowdsecLapiKey doesn't valid this regexp: '/%s/'", reg.String())
 	}
 	return nil
@@ -247,19 +310,19 @@ func validateParamsTLS(config *Config) error {
 		return err
 	}
 	if certAuth == "" {
-		return fmt.Errorf("CrowdsecLapiTLSCertificateAuthority must be specified when CrowdsecLapiScheme='https' and CrowdsecLapiTLSInsecureVerify=false")
+		return errors.New("CrowdsecLapiTLSCertificateAuthority must be specified when CrowdsecLapiScheme='https' and CrowdsecLapiTLSInsecureVerify=false")
 	}
 	tlsConfig := new(tls.Config)
 	tlsConfig.RootCAs = x509.NewCertPool()
 	if !tlsConfig.RootCAs.AppendCertsFromPEM([]byte(certAuth)) {
-		return fmt.Errorf("failed parsing pem file")
+		return errors.New("failed parsing pem file")
 	}
 	return nil
 }
 
 func validateParamsIPs(listIP []string, key string) error {
 	if len(listIP) > 0 {
-		if _, err := ip.NewChecker(logger.New("INFO"), listIP); err != nil {
+		if _, err := ip.NewChecker(logger.New(LogINFO, ""), listIP); err != nil {
 			return fmt.Errorf("%s must be a list of IP/CIDR :%w", key, err)
 		}
 	}
@@ -288,14 +351,24 @@ func validateParamsRequired(config *Config) error {
 			return fmt.Errorf("%v: cannot be less than 1", key)
 		}
 	}
+	if config.UpdateMaxFailure < -1 {
+		return errors.New("UpdateMaxFailure: cannot be less than -1")
+	}
+	if config.CrowdsecAppsecBodyLimit < 0 {
+		return errors.New("CrowdsecAppsecBodyLimit: cannot be less than 0")
+	}
+	if config.RemediationStatusCode < 100 || config.RemediationStatusCode >= 600 {
+		return errors.New("RemediationStatusCode: cannot be less than 100 and more than 600")
+	}
+
 	if !contains([]string{NoneMode, LiveMode, StreamMode, AloneMode, AppsecMode}, config.CrowdsecMode) {
-		return fmt.Errorf("CrowdsecMode: must be one of 'none', 'live', 'stream', 'alone' or 'appsec'")
+		return errors.New("CrowdsecMode: must be one of 'none', 'live', 'stream', 'alone' or 'appsec'")
 	}
 	if !contains([]string{HTTP, HTTPS}, config.CrowdsecLapiScheme) {
-		return fmt.Errorf("CrowdsecLapiScheme: must be one of 'http' or 'https'")
+		return errors.New("CrowdsecLapiScheme: must be one of 'http' or 'https'")
 	}
 	if !contains([]string{"", HcaptchaProvider, RecaptchaProvider, TurnstileProvider}, config.CaptchaProvider) {
-		return fmt.Errorf("CrowdsecLapiScheme: must be one of 'hcaptcha', 'recaptcha' or 'turnstile'")
+		return errors.New("CaptchaProvider: must be one of 'hcaptcha', 'recaptcha' or 'turnstile'")
 	}
 	return nil
 }
@@ -324,7 +397,7 @@ 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, fmt.Errorf("getTLSConfigCrowdsec:cannot load CA and verify cert is enabled")
+				return nil, errors.New("getTLSConfigCrowdsec:cannot load CA and verify cert is enabled")
 			}
 			log.Debug("getTLSConfigCrowdsec:CrowdsecLapiTLSCertificateAuthority CA added successfully")
 		}

pkg/configuration/configuration_test.go

@@ -85,8 +85,14 @@ func Test_ValidateParams(t *testing.T) {
 	cfg6 := getMinimalConfig()
 	cfg6.CrowdsecLapiScheme = HTTPS
 	cfg6.CrowdsecLapiTLSInsecureVerify = true
+	cfg7 := getMinimalConfig()
+	cfg7.CrowdsecLapiScheme = HTTPS
 	cfg8 := getMinimalConfig()
-	cfg8.CrowdsecLapiScheme = HTTPS
+	cfg8.LogLevel = LogINFO
+	cfg9 := getMinimalConfig()
+	cfg9.LogLevel = "info"
+	cfg10 := getMinimalConfig()
+	cfg10.LogLevel = "Warning"
 	type args struct {
 		config *Config
 	}
@@ -104,7 +110,10 @@ func Test_ValidateParams(t *testing.T) {
 		{name: "Not validate a bad clients ips", args: args{config: cfg5}, wantErr: true},
 		// HTTPS enabled
 		{name: "Validate https config with insecure verify", args: args{config: cfg6}, wantErr: false},
-		{name: "Not validate https without cert authority", args: args{config: cfg8}, wantErr: true},
+		{name: "Not validate https without cert authority", args: args{config: cfg7}, wantErr: true},
+		{name: "Valid log level uppercase INFO", args: args{config: cfg8}, wantErr: false},
+		{name: "Valid log level lowercase info", args: args{config: cfg9}, wantErr: false},
+		{name: "Invalid log level Warning", args: args{config: cfg10}, wantErr: true},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
@@ -233,7 +242,7 @@ 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, logger.New("INFO", ""))
 			if (err != nil) != tt.wantErr {
 				t.Errorf("getTLSConfigCrowdsec() error = %v, wantErr %v", err, tt.wantErr)
 				return

pkg/ip/ip.go

@@ -3,6 +3,7 @@
 package ip
 
 import (
+	"errors"
 	"fmt"
 	"net"
 	"net/http"
@@ -45,7 +46,7 @@ func NewChecker(log *logger.Log, trustedIPs []string) (*Checker, error) {
 // Contains checks if provided address is in the trusted IPs.
 func (ip *Checker) Contains(addr string) (bool, error) {
 	if len(addr) == 0 {
-		return false, fmt.Errorf("Contains:noAddress")
+		return false, errors.New("Contains:noAddress")
 	}
 
 	ipAddr, err := parseIP(addr)

pkg/logger/logger.go

@@ -3,9 +3,11 @@
 package logger
 
 import (
+	"fmt"
 	"io"
 	"log"
 	"os"
+	"path/filepath"
 )
 
 // Log Logger struct.
@@ -16,15 +18,30 @@ type Log struct {
 }
 
 // New Set Default log level to info in case log level to defined.
-func New(logLevel string) *Log {
+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)
 	}
+	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)
+		} else {
+			logInfo.SetOutput(logFile)
+			logError.SetOutput(logFile)
+			if logLevel == "DEBUG" {
+				logDebug.SetOutput(logFile)
+			}
+		}
+	}
+
 	return &Log{
 		logError: logError,
 		logInfo:  logInfo,
@@ -34,15 +51,15 @@ func New(logLevel string) *Log {
 
 // Info log to Stdout.
 func (l *Log) Info(str string) {
-	l.logInfo.Printf(str)
+	l.logInfo.Printf("%s", str)
 }
 
 // Debug log to Stdout.
 func (l *Log) Debug(str string) {
-	l.logDebug.Printf(str)
+	l.logDebug.Printf("%s", str)
 }
 
 // Error log to Stderr.
 func (l *Log) Error(str string) {
-	l.logError.Printf(str)
+	l.logError.Printf("%s", str)
 }

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

@@ -122,7 +122,6 @@ func (sr *SimpleRedis) askRedis(cmd redisCmd, channel chan redisCmd) redisCmd {
 				}
 				read, _ = reader.ReadLineBytes()
 				return redisCmd{Data: read}
-				
 			}
 		}
 	}

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 v1.0.9
+# github.com/maxlerebourg/simpleredis v1.0.11
-## explicit; go 1.19
+## explicit; go 1.22
 github.com/maxlerebourg/simpleredis