✨ Add user-agent header from crowdsec (#149)

* ✨ Add user-agent header from crowdsec

* 🐛 : https://github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/issues/151

---------

Co-authored-by: maxlerebourg <maxlerebourg@gmail.com>

Makefile

@@ -43,6 +43,12 @@ run_tlsauth:
 run_appsec:
 	docker compose -f examples/appsec-enabled/docker-compose.appsec-enabled.yml up -d
 
+run_captcha:
+	docker compose -f examples/captcha/docker-compose.captcha.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
 

README.md

@@ -28,8 +28,18 @@ The AppSec Component offers:
 - 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`.  
+For the `ban` remediation the user will be blocked in Traefik (HTTP 403).  
+For the `captcha` remediation, the user will be redirected to a page to complete a captcha challenge.  
 
-There are 4 operating modes (CrowdsecMode) for this plugin:
+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/)
+
+
+There are 5 operating modes (CrowdsecMode) for this plugin:
 
 | Mode | Description |
 |------|------|
@@ -43,6 +53,247 @@ The `streaming mode` is recommended for performance, decisions are updated every
 
 The cache can be local to Traefik using the filesystem, or 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
 
@@ -92,7 +343,7 @@ Only one instance of the plugin is *possible*.
 - CrowdsecLapiKey
   - string
   - default: ""
-  - Crowdsec LAPI key for the bouncer : **must be unique by service**. 
+  - Crowdsec LAPI key for the bouncer. 
 - CrowdsecLapiTlsInsecureVerify
   - bool
   - default: false
@@ -158,12 +409,35 @@ Only one instance of the plugin is *possible*.
 - CrowdsecCapiScenarios
   - []string
   - Used only in `alone` mode, scenarios for Crowdsec CAPI
+- CaptchaProvider
+  - string
+  - Provider to validate the captcha, expected values are: `hcaptcha`, `recaptcha`, `turnstile`
+- CaptchaSiteKey
+  - string
+  - Site key for the captcha provider
+- CaptchaSecretKey
+  - string
+  - Site secret key for the captcha provider
+- 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.
 
 ```yaml
 # Static configuration
@@ -250,11 +524,17 @@ http:
             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` and `CaptchaSecretKey` 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:  
@@ -271,7 +551,7 @@ 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)
 
 ```bash
-docker-compose -f docker-compose-local.yml up -d crowdsec
+docker compose -f docker-compose-local.yml up -d crowdsec
 docker exec crowdsec cscli bouncers add crowdsecBouncer
 ```
 
@@ -295,7 +575,7 @@ Note:
 
 You can then run all the containers:
 ```bash
-docker-compose up -d
+docker compose up -d
 ```
 
 #### Use certificates to authenticate with CrowdSec
@@ -316,9 +596,11 @@ Please see the [tls-auth example](https://github.com/maxlerebourg/crowdsec-bounc
 #### Manually add an IP to the blocklist (for testing purposes)
 
 ```bash
-docker-compose up -d crowdsec
+docker compose up -d crowdsec
 docker exec crowdsec cscli decisions add --ip 10.0.0.10 -d 10m # this will be effective 10min
 docker exec crowdsec cscli decisions remove --ip 10.0.0.10
+docker exec crowdsec cscli decisions add --ip 10.0.0.10 -d 10m -t captcha # this will return a captcha challenge  
+docker exec crowdsec cscli decisions remove --ip 10.0.0.10 -t captcha
 ```
 
 ### Examples
@@ -337,9 +619,11 @@ docker exec crowdsec cscli decisions remove --ip 10.0.0.10
 
 #### 7. Using Traefik in standalone mode without Crowdsec [examples/standalone-mode/README.md](https://github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/blob/main/examples/standalone-mode/README.md)
 
-
 #### 8. Using Traefik with AppSec feature enabled [examples/appsec-enabled/README.md](https://github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/blob/main/examples/appsec-enabled/README.md)
 
+#### 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
 
@@ -369,7 +653,7 @@ For local development, a `docker-compose.local.yml` is provided which reproduces
 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
+docker compose -f docker-compose.local.yml up -d
 ```
 Equivalent to
 ```bash

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

@@ -16,6 +16,7 @@ import (
 	"time"
 
 	cache "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/cache"
+	captcha "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/captcha"
 	configuration "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/configuration"
 	ip "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/ip"
 	logger "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/logger"
@@ -27,6 +28,7 @@ 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"
@@ -71,10 +73,12 @@ type Bouncer struct {
 	customHeader           string
 	crowdsecStreamRoute    string
 	crowdsecHeader         string
+	banTemplateString      string
 	clientPoolStrategy     *ip.PoolStrategy
 	serverPoolStrategy     *ip.PoolStrategy
 	httpClient             *http.Client
 	cacheClient            *cache.Client
+	captchaClient          *captcha.Client
 	log                    *logger.Log
 }
 
@@ -117,6 +121,18 @@ func New(ctx context.Context, next http.Handler, config *configuration.Config, n
 		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(fmt.Sprintf("New:banTemplate is bad formatted %s", err.Error()))
+			return nil, err
+		}
+		banTemplateString = buf.String()
+	}
+
 	bouncer := &Bouncer{
 		next:     next,
 		name:     name,
@@ -136,6 +152,7 @@ func New(ctx context.Context, next http.Handler, config *configuration.Config, n
 		updateInterval:         config.UpdateIntervalSeconds,
 		customHeader:           config.ForwardedHeadersCustomName,
 		defaultDecisionTimeout: config.DefaultDecisionSeconds,
+		banTemplateString:      banTemplateString,
 		crowdsecStreamRoute:    crowdsecStreamRoute,
 		crowdsecHeader:         crowdsecHeader,
 		log:                    log,
@@ -154,18 +171,37 @@ func New(ctx context.Context, next http.Handler, config *configuration.Config, n
 			Timeout: time.Duration(config.HTTPTimeoutSeconds) * time.Second,
 		},
 		cacheClient:   &cache.Client{},
+		captchaClient: &captcha.Client{},
 	}
 	if config.CrowdsecMode == configuration.AppsecMode {
 		return bouncer, nil
 	}
 	config.RedisCachePassword, _ = configuration.GetVariable(config, "RedisCachePassword")
-	bouncer.cacheClient.Init(
+	bouncer.cacheClient.New(
 		log,
 		config.RedisCacheEnabled,
 		config.RedisCacheHost,
 		config.RedisCachePassword,
 		config.RedisCacheDatabase,
 	)
+	config.CaptchaSiteKey, _ = configuration.GetVariable(config, "CaptchaSiteKey")
+	config.CaptchaSecretKey, _ = configuration.GetVariable(config, "CaptchaSecretKey")
+	err = bouncer.captchaClient.New(
+		log,
+		bouncer.cacheClient,
+		&http.Client{
+			Transport: &http.Transport{MaxIdleConns: 10, IdleConnTimeout: 30 * time.Second},
+			Timeout:   time.Duration(config.HTTPTimeoutSeconds) * time.Second,
+		},
+		config.CaptchaProvider,
+		config.CaptchaSiteKey,
+		config.CaptchaSecretKey,
+		config.CaptchaHTMLFilePath,
+		config.CaptchaGracePeriodSeconds,
+	)
+	if err != nil {
+		return nil, err
+	}
 
 	if (config.CrowdsecMode == configuration.StreamMode || config.CrowdsecMode == configuration.AloneMode) && ticker == nil {
 		if config.CrowdsecMode == configuration.AloneMode {
@@ -198,13 +234,13 @@ func (bouncer *Bouncer) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
 	remoteIP, err := ip.GetRemoteIP(req, bouncer.serverPoolStrategy, bouncer.customHeader)
 	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
@@ -221,21 +257,21 @@ func (bouncer *Bouncer) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
 
 	// TODO This should be simplified
 	if bouncer.crowdsecMode != configuration.NoneMode {
-		isBanned, cacheErr := bouncer.cacheClient.GetDecision(remoteIP)
+		value, cacheErr := bouncer.cacheClient.Get(remoteIP)
 		if cacheErr != nil {
-			errString := cacheErr.Error()
+			cacheErrString := cacheErr.Error()
-			bouncer.log.Debug(fmt.Sprintf("ServeHTTP:getDecision ip:%s isBanned:false %s", remoteIP, errString))
+			bouncer.log.Debug(fmt.Sprintf("ServeHTTP:Get ip:%s isBanned:false %s", remoteIP, cacheErrString))
-			if errString != cache.CacheMiss {
+			if cacheErrString != cache.CacheMiss {
-				bouncer.log.Error(fmt.Sprintf("ServeHTTP:getDecision ip:%s %s", remoteIP, errString))
+				bouncer.log.Error(fmt.Sprintf("ServeHTTP:Get ip:%s %s", remoteIP, cacheErrString))
-				rw.WriteHeader(http.StatusForbidden)
+				handleBanServeHTTP(bouncer, rw)
 				return
 			}
 		} else {
-			bouncer.log.Debug(fmt.Sprintf("ServeHTTP ip:%s cache:hit isBanned:%v", remoteIP, isBanned))
+			bouncer.log.Debug(fmt.Sprintf("ServeHTTP ip:%s cache:hit isBanned:%v", remoteIP, value))
-			if isBanned {
+			if value == cache.NoBannedValue {
-				rw.WriteHeader(http.StatusForbidden)
-			} else {
 				handleNextServeHTTP(bouncer, remoteIP, rw, req)
+			} else {
+				handleRemediationServeHTTP(bouncer, remoteIP, value, rw, req)
 			}
 			return
 		}
@@ -247,15 +283,15 @@ func (bouncer *Bouncer) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
 			handleNextServeHTTP(bouncer, remoteIP, rw, req)
 		} else {
 			bouncer.log.Debug(fmt.Sprintf("ServeHTTP isCrowdsecStreamHealthy:false ip:%s", remoteIP))
-			rw.WriteHeader(http.StatusForbidden)
+			handleBanServeHTTP(bouncer, rw)
 		}
 	} else {
-		err = handleNoStreamCache(bouncer, remoteIP)
+		value, err := handleNoStreamCache(bouncer, remoteIP)
-		if err != nil {
+		if value == cache.NoBannedValue {
-			bouncer.log.Debug(fmt.Sprintf("ServeHTTP:handleNoStreamCache ip:%s isBanned:true %s", remoteIP, err.Error()))
-			rw.WriteHeader(http.StatusForbidden)
-		} else {
 			handleNextServeHTTP(bouncer, remoteIP, rw, req)
+		} else {
+			bouncer.log.Debug(fmt.Sprintf("ServeHTTP:handleNoStreamCache ip:%s isBanned:%v %s", remoteIP, value, err.Error()))
+			handleRemediationServeHTTP(bouncer, remoteIP, value, rw, req)
 		}
 	}
 }
@@ -288,12 +324,32 @@ type Login struct {
 	Expire string `json:"expire"`
 }
 
+func handleBanServeHTTP(bouncer *Bouncer, rw http.ResponseWriter) {
+	rw.WriteHeader(http.StatusForbidden)
+	if bouncer.banTemplateString != "" {
+		rw.Header().Set("Content-Type", "text/html; charset=utf-8")
+		fmt.Fprint(rw, bouncer.banTemplateString)
+	}
+}
+
+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)
+			return
+		}
+		bouncer.captchaClient.ServeHTTP(rw, req, remoteIP)
+		return
+	}
+	handleBanServeHTTP(bouncer, rw)
+}
+
 func handleNextServeHTTP(bouncer *Bouncer, remoteIP string, rw http.ResponseWriter, req *http.Request) {
 	if bouncer.appsecEnabled {
-		err := appsecQuery(bouncer, remoteIP, req)
+		if err := appsecQuery(bouncer, remoteIP, req); err != nil {
-		if err != nil {
 			bouncer.log.Debug(fmt.Sprintf("handleNextServeHTTP ip:%s isWaf:true %s", remoteIP, err.Error()))
-			rw.WriteHeader(http.StatusForbidden)
+			handleBanServeHTTP(bouncer, rw)
 			return
 		}
 	}
@@ -327,7 +383,7 @@ func startTicker(config *configuration.Config, log *logger.Log, work func()) cha
 }
 
 // We are now in none or live mode.
-func handleNoStreamCache(bouncer *Bouncer, remoteIP string) error {
+func handleNoStreamCache(bouncer *Bouncer, remoteIP string) (string, error) {
 	isLiveMode := bouncer.crowdsecMode == configuration.LiveMode
 	routeURL := url.URL{
 		Scheme:   bouncer.crowdsecScheme,
@@ -337,39 +393,55 @@ func handleNoStreamCache(bouncer *Bouncer, remoteIP string) error {
 	}
 	body, err := crowdsecQuery(bouncer, routeURL.String(), false)
 	if err != nil {
-		return err
+		return cache.BannedValue, err
 	}
 
 	if bytes.Equal(body, []byte("null")) {
 		if isLiveMode {
-			bouncer.cacheClient.SetDecision(remoteIP, false, bouncer.defaultDecisionTimeout)
+			bouncer.cacheClient.Set(remoteIP, cache.NoBannedValue, bouncer.defaultDecisionTimeout)
 		}
-		return nil
+		return cache.NoBannedValue, nil
 	}
 
 	var decisions []Decision
 	err = json.Unmarshal(body, &decisions)
 	if err != nil {
-		return fmt.Errorf("handleNoStreamCache:parseBody %w", err)
+		return cache.BannedValue, fmt.Errorf("handleNoStreamCache:parseBody %w", err)
 	}
 	if len(decisions) == 0 {
 		if isLiveMode {
-			bouncer.cacheClient.SetDecision(remoteIP, false, bouncer.defaultDecisionTimeout)
+			bouncer.cacheClient.Set(remoteIP, cache.NoBannedValue, bouncer.defaultDecisionTimeout)
 		}
-		return nil
+		return cache.NoBannedValue, nil
 	}
-	duration, err := time.ParseDuration(decisions[0].Duration)
+	var decision Decision
+	for _, d := range decisions {
+		decision = d
+		if decision.Type == "ban" {
+			break
+		}
+	}
+	duration, err := time.ParseDuration(decision.Duration)
 	if err != nil {
-		return fmt.Errorf("handleNoStreamCache:parseDuration %w", err)
+		return cache.BannedValue, fmt.Errorf("handleNoStreamCache:parseDuration %w", err)
+	}
+	var value string
+	switch decision.Type {
+	case "ban":
+		value = cache.BannedValue
+	case "captcha":
+		value = cache.CaptchaValue
+	default:
+		bouncer.log.Debug(fmt.Sprintf("handleStreamCache:unknownType %s", decision.Type))
 	}
 	if isLiveMode {
 		durationSecond := int64(duration.Seconds())
 		if bouncer.defaultDecisionTimeout < durationSecond {
 			durationSecond = bouncer.defaultDecisionTimeout
 		}
-		bouncer.cacheClient.SetDecision(remoteIP, true, durationSecond)
+		bouncer.cacheClient.Set(remoteIP, value, durationSecond)
 	}
-	return fmt.Errorf("handleNoStreamCache:banned")
+	return value, fmt.Errorf("handleNoStreamCache:banned")
 }
 
 func getToken(bouncer *Bouncer) error {
@@ -401,7 +473,7 @@ func handleStreamCache(bouncer *Bouncer) error {
 	// Instead of blocking the goroutine interval for all the secondary node,
 	// if the master service is shut down, other goroutine can take the lead
 	// because updated routine information is in the cache
-	_, err := bouncer.cacheClient.GetDecision(cacheTimeoutKey)
+	_, err := bouncer.cacheClient.Get(cacheTimeoutKey)
 	if err == nil {
 		bouncer.log.Debug("handleStreamCache:alreadyUpdated")
 		return nil
@@ -409,7 +481,7 @@ func handleStreamCache(bouncer *Bouncer) error {
 	if err.Error() != cache.CacheMiss {
 		return err
 	}
-	bouncer.cacheClient.SetDecision(cacheTimeoutKey, false, bouncer.updateInterval-1)
+	bouncer.cacheClient.Set(cacheTimeoutKey, cache.NoBannedValue, bouncer.updateInterval-1)
 	streamRouteURL := url.URL{
 		Scheme:   bouncer.crowdsecScheme,
 		Host:     bouncer.crowdsecHost,
@@ -428,11 +500,20 @@ func handleStreamCache(bouncer *Bouncer) error {
 	for _, decision := range stream.New {
 		duration, err := time.ParseDuration(decision.Duration)
 		if err == nil {
-			bouncer.cacheClient.SetDecision(decision.Value, true, int64(duration.Seconds()))
+			var value string
+			switch decision.Type {
+			case "ban":
+				value = cache.BannedValue
+			case "captcha":
+				value = cache.CaptchaValue
+			default:
+				bouncer.log.Debug(fmt.Sprintf("handleStreamCache:unknownType %s", decision.Type))
+			}
+			bouncer.cacheClient.Set(decision.Value, value, int64(duration.Seconds()))
 		}
 	}
 	for _, decision := range stream.Deleted {
-		bouncer.cacheClient.DeleteDecision(decision.Value)
+		bouncer.cacheClient.Delete(decision.Value)
 	}
 	bouncer.log.Debug("handleStreamCache:updated")
 	isCrowdsecStreamHealthy = true
@@ -506,7 +587,8 @@ 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 {

bouncer_test.go

@@ -130,7 +130,7 @@ func Test_handleNoStreamCache(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			if err := handleNoStreamCache(tt.args.bouncer, tt.args.remoteIP); (err != nil) != tt.wantErr {
+			if _, err := handleNoStreamCache(tt.args.bouncer, tt.args.remoteIP); (err != nil) != tt.wantErr {
 				t.Errorf("handleNoStreamCache() error = %v, wantErr %v", err, tt.wantErr)
 			}
 		})

captcha.html

@@ -0,0 +1,338 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <title>CrowdSec Captcha</title>
+  <meta content="text/html; charset=utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <style>
+    /*! tailwindcss v3.2.7 | MIT License | https://tailwindcss.com*/
+    *,
+    :after,
+    :before {
+      border: 0 solid #e5e7eb;
+      box-sizing: border-box
+    }
+
+    :after,
+    :before {
+      --tw-content: ""
+    }
+
+    html {
+      -webkit-text-size-adjust: 100%;
+      font-feature-settings: normal;
+      font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Helvetica Neue, Arial, Noto Sans, sans-serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol, Noto Color Emoji;
+      line-height: 1.5;
+      -moz-tab-size: 4;
+      -o-tab-size: 4;
+      tab-size: 4
+    }
+
+    body {
+      line-height: inherit;
+      margin: 0
+    }
+
+    h1,
+    h2,
+    h3,
+    h4,
+    h5,
+    h6 {
+      font-size: inherit;
+      font-weight: inherit
+    }
+
+    a {
+      color: inherit;
+      text-decoration: inherit
+    }
+
+    h1,
+    h2,
+    h3,
+    h4,
+    h5,
+    h6,
+    hr,
+    p,
+    pre {
+      margin: 0
+    }
+
+    *,
+    ::backdrop,
+    :after,
+    :before {
+      --tw-border-spacing-x: 0;
+      --tw-border-spacing-y: 0;
+      --tw-translate-x: 0;
+      --tw-translate-y: 0;
+      --tw-rotate: 0;
+      --tw-skew-x: 0;
+      --tw-skew-y: 0;
+      --tw-scale-x: 1;
+      --tw-scale-y: 1;
+      --tw-pan-x: ;
+      --tw-pan-y: ;
+      --tw-pinch-zoom: ;
+      --tw-scroll-snap-strictness: proximity;
+      --tw-ordinal: ;
+      --tw-slashed-zero: ;
+      --tw-numeric-figure: ;
+      --tw-numeric-spacing: ;
+      --tw-numeric-fraction: ;
+      --tw-ring-inset: ;
+      --tw-ring-offset-width: 0px;
+      --tw-ring-offset-color: #fff;
+      --tw-ring-color: #3b82f680;
+      --tw-ring-offset-shadow: 0 0 #0000;
+      --tw-ring-shadow: 0 0 #0000;
+      --tw-shadow: 0 0 #0000;
+      --tw-shadow-colored: 0 0 #0000;
+      --tw-blur: ;
+      --tw-brightness: ;
+      --tw-contrast: ;
+      --tw-grayscale: ;
+      --tw-hue-rotate: ;
+      --tw-invert: ;
+      --tw-saturate: ;
+      --tw-sepia: ;
+      --tw-drop-shadow: ;
+      --tw-backdrop-blur: ;
+      --tw-backdrop-brightness: ;
+      --tw-backdrop-contrast: ;
+      --tw-backdrop-grayscale: ;
+      --tw-backdrop-hue-rotate: ;
+      --tw-backdrop-invert: ;
+      --tw-backdrop-opacity: ;
+      --tw-backdrop-saturate: ;
+      --tw-backdrop-sepia:
+    }
+
+    .flex {
+      display: flex
+    }
+    .flex-wrap {
+      flex-wrap: wrap
+    }
+
+    .inline-flex {
+      display: inline-flex
+    }
+
+    .h-24 {
+      height: 6rem
+    }
+
+    .h-6 {
+      height: 1.5rem
+    }
+
+    .h-full {
+      height: 100%
+    }
+
+    .h-screen {
+      height: 100vh
+    }
+
+    .text-center {
+      text-align: center
+    }
+
+    .w-24 {
+      width: 6rem
+    }
+
+    .w-6 {
+      width: 1.5rem
+    }
+
+    .w-full {
+      width: 100%
+    }
+
+    .w-screen {
+      width: 100vw
+    }
+
+    .my-3 {
+      margin-top: 0.75rem;
+      margin-bottom: 0.75rem
+    }
+
+    .flex-col {
+      flex-direction: column
+    }
+
+    .items-center {
+      align-items: center
+    }
+
+    .justify-center {
+      justify-content: center
+    }
+
+    .justify-between {
+      justify-content: space-between
+    }
+
+    .space-y-1>:not([hidden])~:not([hidden]) {
+      --tw-space-y-reverse: 0;
+      margin-bottom: calc(.25rem*var(--tw-space-y-reverse));
+      margin-top: calc(.25rem*(1 - var(--tw-space-y-reverse)))
+    }
+
+    .space-y-4>:not([hidden])~:not([hidden]) {
+      --tw-space-y-reverse: 0;
+      margin-bottom: calc(1rem*var(--tw-space-y-reverse));
+      margin-top: calc(1rem*(1 - var(--tw-space-y-reverse)))
+    }
+
+    .rounded-xl {
+      border-radius: .75rem
+    }
+
+    .border-2 {
+      border-width: 2px
+    }
+
+    .border-black {
+      --tw-border-opacity: 1;
+      border-color: rgb(0 0 0/var(--tw-border-opacity))
+    }
+
+    .p-4 {
+      padding: 1rem
+    }
+
+    .px-4 {
+      padding-left: 1rem;
+      padding-right: 1rem
+    }
+
+    .py-2 {
+      padding-bottom: .5rem;
+      padding-top: .5rem
+    }
+
+    .text-2xl {
+      font-size: 1.5rem;
+      line-height: 2rem
+    }
+
+    .text-sm {
+      font-size: .875rem;
+      line-height: 1.25rem
+    }
+
+    .text-xl {
+      font-size: 1.25rem;
+      line-height: 1.75rem
+    }
+
+    .font-bold {
+      font-weight: 700
+    }
+
+    .text-white {
+      --tw-text-opacity: 1;
+      color: rgb(255 255 255/var(--tw-text-opacity))
+    }
+
+    @media (min-width:640px) {
+      .sm\:w-2\/3 {
+        width: 66.666667%
+      }
+    }
+
+    @media (min-width:768px) {
+      .md\:flex-row {
+        flex-direction: row
+      }
+    }
+
+    @media (min-width:1024px) {
+      .lg\:w-1\/2 {
+        width: 50%
+      }
+
+      .lg\:text-3xl {
+        font-size: 1.875rem;
+        line-height: 2.25rem
+      }
+
+      .lg\:text-xl {
+        font-size: 1.25rem;
+        line-height: 1.75rem
+      }
+    }
+
+    @media (min-width:1280px) {
+      .xl\:text-4xl {
+        font-size: 2.25rem;
+        line-height: 2.5rem
+      }
+    }
+  </style>
+  <script src="{{ .FrontendJS }}" async defer></script>
+</head>
+
+<body class="h-screen w-screen p-4">
+  <div class="h-full w-full flex flex-col justify-center items-center">
+    <div class="border-2 border-black rounded-xl p-4 text-center w-full sm:w-2/3 lg:w-1/2">
+      <div class="flex flex-col items-center space-y-4">
+        <svg fill="black" class="h-24 w-24" aria-hidden="true" focusable="false" data-prefix="fas"
+          data-icon="exclamation-triangle" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 576 512"
+          class="warning">
+          <path
+            d="M569.517 440.013C587.975 472.007 564.806 512 527.94 512H48.054c-36.937 0-59.999-40.055-41.577-71.987L246.423 23.985c18.467-32.009 64.72-31.951 83.154 0l239.94 416.028zM288 354c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z">
+          </path>
+        </svg>
+        <h1 class="text-2xl lg:text-3xl xl:text-4xl">CrowdSec Captcha</h1>
+      </div>
+      <form action="" method="POST" class="flex flex-col space-y-1" id="captcha-form">
+        <div id="captcha" class="{{ .FrontendKey }}" data-sitekey="{{ .SiteKey }}" data-callback="captchaCallback">
+        </div>
+      </form>
+      <div class="flex justify-center flex-wrap">
+        <p class="my-3">This security check has been powered by</p>
+        <a href="https://crowdsec.net/" target="_blank" rel="noopener" class="inline-flex flex-col items-center">
+          <svg fill="black" width="33.92" height="33.76" viewBox="0 0 254.4 253.2">
+            <defs>
+              <clipPath id="a">
+                <path d="M0 52h84v201.2H0zm0 0" />
+              </clipPath>
+              <clipPath id="b">
+                <path d="M170 52h84.4v201.2H170zm0 0" />
+              </clipPath>
+            </defs>
+            <path
+              d="M59.3 128.4c1.4 2.3 2.5 4.6 3.4 7-1-4.1-2.3-8.1-4.3-12-3.1-6-7.8-5.8-10.7 0-2 4-3.2 8-4.3 12.1 1-2.4 2-4.8 3.4-7.1 3.4-5.8 8.8-6 12.5 0M207.8 128.4a42.9 42.9 0 013.4 7c-1-4.1-2.3-8.1-4.3-12-3.2-6-7.8-5.8-10.7 0-2 4-3.3 8-4.3 12.1.9-2.4 2-4.8 3.4-7.1 3.4-5.8 8.8-6 12.5 0M134.6 92.9c2 3.5 3.6 7 4.8 10.7-1.3-5.4-3-10.6-5.6-15.7-4-7.5-9.7-7.2-13.3 0a75.4 75.4 0 00-5.6 16c1.2-3.8 2.7-7.4 4.7-11 4.1-7.2 10.6-7.5 15 0M43.8 136.8c.9 4.6 3.7 8.3 7.3 9.2 0 2.7 0 5.5.2 8.2.3 3.3.4 6.6 1 9.6.3 2.3 1 2.2 1.3 0 .5-3 .6-6.3 1-9.6l.2-8.2c3.5-1 6.4-4.6 7.2-9.2a17.8 17.8 0 01-9 2.4c-3.5 0-6.6-1-9.2-2.4M192.4 136.8c.8 4.6 3.7 8.3 7.2 9.2 0 2.7 0 5.5.3 8.2.3 3.3.4 6.6 1 9.6.3 2.3.9 2.2 1.2 0 .6-3 .7-6.3 1-9.6.2-2.7.3-5.5.2-8.2 3.6-1 6.4-4.6 7.3-9.2a17.8 17.8 0 01-9.1 2.4c-3.4 0-6.6-1-9.1-2.4M138.3 104.6c-3.1 1.9-7 3-11.3 3-4.3 0-8.2-1.1-11.3-3 1 5.8 4.5 10.3 9 11.5 0 3.4 0 6.8.3 10.2.4 4.1.5 8.2 1.2 12 .4 2.9 1.2 2.7 1.6 0 .7-3.8.8-7.9 1.2-12 .3-3.4.3-6.8.3-10.2 4.5-1.2 8-5.7 9-11.5" />
+            <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>
+  <script>
+    function captchaCallback() {
+      setTimeout(() => document.querySelector('#captcha-form').submit(), 500);
+    }
+  </script>
+</body>
+</html>

docker-compose.local.yml

@@ -1,8 +1,6 @@
-version: "3.8"
-
 services:
   traefik:
-    image: "traefik:v2.10.4"
+    image: "traefik:v2.11.0"
     container_name: "traefik"
     restart: unless-stopped
     command:
@@ -18,6 +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
@@ -33,10 +33,8 @@ services:
       - "traefik.enable=true"
       - "traefik.http.routers.router-foo.rule=PathPrefix(`/foo`)"
       - "traefik.http.routers.router-foo.entrypoints=web"
-      - "traefik.http.routers.router-foo.middlewares=crowdsec-foo@docker" 
+      - "traefik.http.routers.router-foo.middlewares=crowdsec@docker"
       - "traefik.http.services.service-foo.loadbalancer.server.port=80"
-      - "traefik.http.middlewares.crowdsec-foo.plugin.bouncer.enabled=true"
-      - "traefik.http.middlewares.crowdsec-foo.plugin.bouncer.crowdseclapikey=40796d93c2958f9e58345514e67740e5="
 
   whoami2:
     image: traefik/whoami
@@ -46,15 +44,15 @@ services:
       - "traefik.enable=true"
       - "traefik.http.routers.router-bar.rule=PathPrefix(`/bar`)"
       - "traefik.http.routers.router-bar.entrypoints=web"
-      - "traefik.http.routers.router-bar.middlewares=crowdsec-bar@docker"
+      - "traefik.http.routers.router-bar.middlewares=crowdsec@docker"
       - "traefik.http.services.service-bar.loadbalancer.server.port=80"
-      - "traefik.http.middlewares.crowdsec-bar.plugin.bouncer.enabled=true"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.enabled=true"
-      - "traefik.http.middlewares.crowdsec-bar.plugin.bouncer.loglevel=DEBUG"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.loglevel=DEBUG"
-      - "traefik.http.middlewares.crowdsec-bar.plugin.bouncer.crowdsecappsecenabled=true"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecappsecenabled=true"
-      - "traefik.http.middlewares.crowdsec-bar.plugin.bouncer.crowdseclapikey=40796d93c2958f9e58345514e67740e5="
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdseclapikey=40796d93c2958f9e58345514e67740e5="
 
   crowdsec:
-    image: crowdsecurity/crowdsec:dev
+    image: crowdsecurity/crowdsec:v1.6.0
     container_name: "crowdsec"
     restart: unless-stopped
     environment:

docker-compose.yml

@@ -1,8 +1,6 @@
-version: "3.8"
-
 services:
   traefik:
-    image: "traefik:v2.10.4"
+    image: "traefik:v2.11.0"
     container_name: "traefik"
     restart: unless-stopped
     command:
@@ -14,9 +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-beta3"
     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
@@ -33,16 +33,9 @@ services:
       # Definition of the router
       - "traefik.http.routers.router-foo.rule=Path(`/foo`)"
       - "traefik.http.routers.router-foo.entrypoints=web"
-      - "traefik.http.routers.router-foo.middlewares=crowdsec-foo@docker"
+      - "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-foo.plugin.bouncer.enabled=true"
-      # crowdseclapikey must be unique to the middleware attached to the service
-      - "traefik.http.middlewares.crowdsec-foo.plugin.bouncer.crowdseclapikey=FIXME-LAPI-KEY-1="
-      
-      # forwardedheaderstrustedips should be the IP of the proxy that is in front of traefik (if any)
-      - "traefik.http.middlewares.crowdsec-foo.plugin.bouncer.forwardedheaderstrustedips=172.21.0.5"
 
   whoami2:
     image: traefik/whoami
@@ -53,20 +46,20 @@ services:
       # Definition of the router
       - "traefik.http.routers.router-bar.rule=Path(`/bar`)"
       - "traefik.http.routers.router-bar.entrypoints=web"
-      - "traefik.http.routers.router-bar.middlewares=crowdsec-bar@docker"
+      - "traefik.http.routers.router-bar.middlewares=crowdsec@docker"
       # Definition of the service
       - "traefik.http.services.service-bar.loadbalancer.server.port=80"
       # Definitin of the middleware
-      - "traefik.http.middlewares.crowdsec-bar.plugin.bouncer.enabled=true"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.enabled=true"
-      # crowdseclapikey must be unique to the middleware attached to the service
+      # crowdseclapikey is the key to authenticate to crowdsec
-      - "traefik.http.middlewares.crowdsec-bar.plugin.bouncer.crowdseclapikey=FIXME-LAPI-KEY-1="
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdseclapikey=FIXME-LAPI-KEY-1="
       # enable AppSec real time check
-      - "traefik.http.middlewares.crowdsec-bar.plugin.bouncer.crowdsecappsecenabled=true"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecappsecenabled=true"
       # forwardedheaderstrustedips should be the IP of the proxy that is in front of traefik (if any)
-      - "traefik.http.middlewares.crowdsec-bar.plugin.bouncer.forwardedheaderstrustedips=172.21.0.5"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.forwardedheaderstrustedips=172.21.0.5"
 
   crowdsec:
-    image: crowdsecurity/crowdsec:v1.5.3
+    image: crowdsecurity/crowdsec:v1.6.0
     container_name: "crowdsec"
     restart: unless-stopped
     environment:

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

@@ -36,7 +36,7 @@ services:
       # 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-foo@docker" 
+      - "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

examples/behind-proxy/docker-compose.cloudflare.yml

@@ -54,7 +54,7 @@ services:
       # Definition of the router
       - "traefik.http.routers.router-foo.rule=Path(`/foo`)"
       - "traefik.http.routers.router-foo.entrypoints=web"
-      - "traefik.http.routers.router-foo.middlewares=crowdsec-foo@docker" 
+      - "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
@@ -73,15 +73,11 @@ services:
       # Definition of the router
       - "traefik.http.routers.router-bar.rule=Path(`/bar`)"
       - "traefik.http.routers.router-bar.entrypoints=web"
-      - "traefik.http.routers.router-bar.middlewares=crowdsec-bar@docker" 
+      - "traefik.http.routers.router-bar.middlewares=crowdsec@docker" 
       # Definition of the service
       - "traefik.http.services.service-bar.loadbalancer.server.port=80"
       # Definition of the middleware
-      - "traefik.http.middlewares.crowdsec-bar.plugin.bouncer.enabled=true"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.enabled=true"
-      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdseclapikey=40796d93c2958f9e58345514e67740e5"
-      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecmode=live"
-      - "traefik.http.middlewares.crowdsec.plugin.bouncer.forwardedheaderstrustedips=172.21.0.5"
-      - "traefik.http.middlewares.crowdsec.plugin.bouncer.loglevel=DEBUG"
   
 
   crowdsec:

examples/captcha/README.md

@@ -0,0 +1,161 @@
+# Example
+## Enabling catpcha response from crowdsec
+
+Crowdsec support 3 remediations solutions `ban`, `captcha`, and `throttle`.  
+This plugins support the `ban` and `captcha` remediation.  
+
+### Traefik configuration
+
+The minimal configuration is defined below.  
+For now 3 captcha providers are supported:  
+ - [hcaptcha](https://www.hcaptcha.com/)
+ - [recaptcha](https://www.google.com/recaptcha/about/)
+ - [turnstile](https://www.cloudflare.com/fr-fr/products/turnstile/)
+
+```yaml
+  labels:
+      # Choose captcha provider
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaProvider=hcaptcha"
+      # Define captcha site key
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaSiteKey=FIXME"
+      # Define captcha secret key
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaSecretKey=FIXME"
+      # Define captcha grade period seconds
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaGracePeriodSeconds=1800"
+      # Define captcha HTML file path
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaHTMLFilePath=/captcha.html"
+```
+
+The captcha 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/captcha.html) it locally to expose it to Traefik.
+
+```yaml 
+  ...
+  traefik:
+    image: "traefik:v2.11.0"
+    volumes:
+      - './captcha.html:/captcha.html'
+  ...
+```
+### Crowdsec configuration
+
+Crowdsec by default will take the ban action on suspicious activity detected in logs.  
+To instruct Crowdsec to use captcha remediation, change the `/etc/crowdsec/profiles.yaml`.   
+
+2 modes are supported:
+- Always return a captcha decision
+- Return a captcha decision the first X times and then a ban decision.
+
+The second mode could be used to prevent repeated malicious activity.
+More information is available on configuring Crowdsec in the [official documentation](https://docs.crowdsec.net/docs/next/profiles/captcha_profile/).
+
+```yaml
+  ...
+  crowdsec:
+    image: crowdsecurity/crowdsec:v1.6.0
+    volumes:
+      # For captcha and ban mixed decision
+      - './profiles.yaml:/etc/crowdsec/profiles.yaml:ro' 
+      # For captcha only remediation
+      # - './profiles_captcha_only.yaml:/etc/crowdsec/profiles.yaml:ro'
+  ...
+```
+## 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 captcha
+```
+
+![image decision captcha](image_decision_captcha.png)
+
+We will see in the browser the captcha validation page:
+
+![image captcha validation](image_captcha_validation.png)
+
+To play the demo environment run:
+```bash
+make run_captcha
+```
+
+> Note, if we are banned with a "ban" decision from crowdsec a captcha will not be asked and you will have to wait for the decision to expire or remove it manually.  
+
+```bash
+docker exec crowdsec cscli decisions add --ip 10.0.0.10 -d 10m --type ban
+```
+
+## Captcha Workflow
+
+> Context: The user has no decision attached to his IP
+
+```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
+```
+
+> Context: The user has a captcha decision attached to his IP
+
+```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
+```
+
+> Context: The user has a ban decision attached to his IP
+
+```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
+    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/captcha.html

@@ -0,0 +1,338 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <title>CrowdSec Captcha</title>
+  <meta content="text/html; charset=utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <style>
+    /*! tailwindcss v3.2.7 | MIT License | https://tailwindcss.com*/
+    *,
+    :after,
+    :before {
+      border: 0 solid #e5e7eb;
+      box-sizing: border-box
+    }
+
+    :after,
+    :before {
+      --tw-content: ""
+    }
+
+    html {
+      -webkit-text-size-adjust: 100%;
+      font-feature-settings: normal;
+      font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Helvetica Neue, Arial, Noto Sans, sans-serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol, Noto Color Emoji;
+      line-height: 1.5;
+      -moz-tab-size: 4;
+      -o-tab-size: 4;
+      tab-size: 4
+    }
+
+    body {
+      line-height: inherit;
+      margin: 0
+    }
+
+    h1,
+    h2,
+    h3,
+    h4,
+    h5,
+    h6 {
+      font-size: inherit;
+      font-weight: inherit
+    }
+
+    a {
+      color: inherit;
+      text-decoration: inherit
+    }
+
+    h1,
+    h2,
+    h3,
+    h4,
+    h5,
+    h6,
+    hr,
+    p,
+    pre {
+      margin: 0
+    }
+
+    *,
+    ::backdrop,
+    :after,
+    :before {
+      --tw-border-spacing-x: 0;
+      --tw-border-spacing-y: 0;
+      --tw-translate-x: 0;
+      --tw-translate-y: 0;
+      --tw-rotate: 0;
+      --tw-skew-x: 0;
+      --tw-skew-y: 0;
+      --tw-scale-x: 1;
+      --tw-scale-y: 1;
+      --tw-pan-x: ;
+      --tw-pan-y: ;
+      --tw-pinch-zoom: ;
+      --tw-scroll-snap-strictness: proximity;
+      --tw-ordinal: ;
+      --tw-slashed-zero: ;
+      --tw-numeric-figure: ;
+      --tw-numeric-spacing: ;
+      --tw-numeric-fraction: ;
+      --tw-ring-inset: ;
+      --tw-ring-offset-width: 0px;
+      --tw-ring-offset-color: #fff;
+      --tw-ring-color: #3b82f680;
+      --tw-ring-offset-shadow: 0 0 #0000;
+      --tw-ring-shadow: 0 0 #0000;
+      --tw-shadow: 0 0 #0000;
+      --tw-shadow-colored: 0 0 #0000;
+      --tw-blur: ;
+      --tw-brightness: ;
+      --tw-contrast: ;
+      --tw-grayscale: ;
+      --tw-hue-rotate: ;
+      --tw-invert: ;
+      --tw-saturate: ;
+      --tw-sepia: ;
+      --tw-drop-shadow: ;
+      --tw-backdrop-blur: ;
+      --tw-backdrop-brightness: ;
+      --tw-backdrop-contrast: ;
+      --tw-backdrop-grayscale: ;
+      --tw-backdrop-hue-rotate: ;
+      --tw-backdrop-invert: ;
+      --tw-backdrop-opacity: ;
+      --tw-backdrop-saturate: ;
+      --tw-backdrop-sepia:
+    }
+
+    .flex {
+      display: flex
+    }
+    .flex-wrap {
+      flex-wrap: wrap
+    }
+
+    .inline-flex {
+      display: inline-flex
+    }
+
+    .h-24 {
+      height: 6rem
+    }
+
+    .h-6 {
+      height: 1.5rem
+    }
+
+    .h-full {
+      height: 100%
+    }
+
+    .h-screen {
+      height: 100vh
+    }
+
+    .text-center {
+      text-align: center
+    }
+
+    .w-24 {
+      width: 6rem
+    }
+
+    .w-6 {
+      width: 1.5rem
+    }
+
+    .w-full {
+      width: 100%
+    }
+
+    .w-screen {
+      width: 100vw
+    }
+
+    .my-3 {
+      margin-top: 0.75rem;
+      margin-bottom: 0.75rem
+    }
+
+    .flex-col {
+      flex-direction: column
+    }
+
+    .items-center {
+      align-items: center
+    }
+
+    .justify-center {
+      justify-content: center
+    }
+
+    .justify-between {
+      justify-content: space-between
+    }
+
+    .space-y-1>:not([hidden])~:not([hidden]) {
+      --tw-space-y-reverse: 0;
+      margin-bottom: calc(.25rem*var(--tw-space-y-reverse));
+      margin-top: calc(.25rem*(1 - var(--tw-space-y-reverse)))
+    }
+
+    .space-y-4>:not([hidden])~:not([hidden]) {
+      --tw-space-y-reverse: 0;
+      margin-bottom: calc(1rem*var(--tw-space-y-reverse));
+      margin-top: calc(1rem*(1 - var(--tw-space-y-reverse)))
+    }
+
+    .rounded-xl {
+      border-radius: .75rem
+    }
+
+    .border-2 {
+      border-width: 2px
+    }
+
+    .border-black {
+      --tw-border-opacity: 1;
+      border-color: rgb(0 0 0/var(--tw-border-opacity))
+    }
+
+    .p-4 {
+      padding: 1rem
+    }
+
+    .px-4 {
+      padding-left: 1rem;
+      padding-right: 1rem
+    }
+
+    .py-2 {
+      padding-bottom: .5rem;
+      padding-top: .5rem
+    }
+
+    .text-2xl {
+      font-size: 1.5rem;
+      line-height: 2rem
+    }
+
+    .text-sm {
+      font-size: .875rem;
+      line-height: 1.25rem
+    }
+
+    .text-xl {
+      font-size: 1.25rem;
+      line-height: 1.75rem
+    }
+
+    .font-bold {
+      font-weight: 700
+    }
+
+    .text-white {
+      --tw-text-opacity: 1;
+      color: rgb(255 255 255/var(--tw-text-opacity))
+    }
+
+    @media (min-width:640px) {
+      .sm\:w-2\/3 {
+        width: 66.666667%
+      }
+    }
+
+    @media (min-width:768px) {
+      .md\:flex-row {
+        flex-direction: row
+      }
+    }
+
+    @media (min-width:1024px) {
+      .lg\:w-1\/2 {
+        width: 50%
+      }
+
+      .lg\:text-3xl {
+        font-size: 1.875rem;
+        line-height: 2.25rem
+      }
+
+      .lg\:text-xl {
+        font-size: 1.25rem;
+        line-height: 1.75rem
+      }
+    }
+
+    @media (min-width:1280px) {
+      .xl\:text-4xl {
+        font-size: 2.25rem;
+        line-height: 2.5rem
+      }
+    }
+  </style>
+  <script src="{{ .FrontendJS }}" async defer></script>
+</head>
+
+<body class="h-screen w-screen p-4">
+  <div class="h-full w-full flex flex-col justify-center items-center">
+    <div class="border-2 border-black rounded-xl p-4 text-center w-full sm:w-2/3 lg:w-1/2">
+      <div class="flex flex-col items-center space-y-4">
+        <svg fill="black" class="h-24 w-24" aria-hidden="true" focusable="false" data-prefix="fas"
+          data-icon="exclamation-triangle" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 576 512"
+          class="warning">
+          <path
+            d="M569.517 440.013C587.975 472.007 564.806 512 527.94 512H48.054c-36.937 0-59.999-40.055-41.577-71.987L246.423 23.985c18.467-32.009 64.72-31.951 83.154 0l239.94 416.028zM288 354c-25.405 0-46 20.595-46 46s20.595 46 46 46 46-20.595 46-46-20.595-46-46-46zm-43.673-165.346l7.418 136c.347 6.364 5.609 11.346 11.982 11.346h48.546c6.373 0 11.635-4.982 11.982-11.346l7.418-136c.375-6.874-5.098-12.654-11.982-12.654h-63.383c-6.884 0-12.356 5.78-11.981 12.654z">
+          </path>
+        </svg>
+        <h1 class="text-2xl lg:text-3xl xl:text-4xl">CrowdSec Captcha</h1>
+      </div>
+      <form action="" method="POST" class="flex flex-col space-y-1" id="captcha-form">
+        <div id="captcha" class="{{ .FrontendKey }}" data-sitekey="{{ .SiteKey }}" data-callback="captchaCallback">
+        </div>
+      </form>
+      <div class="flex justify-center flex-wrap">
+        <p class="my-3">This security check has been powered by</p>
+        <a href="https://crowdsec.net/" target="_blank" rel="noopener" class="inline-flex flex-col items-center">
+          <svg fill="black" width="33.92" height="33.76" viewBox="0 0 254.4 253.2">
+            <defs>
+              <clipPath id="a">
+                <path d="M0 52h84v201.2H0zm0 0" />
+              </clipPath>
+              <clipPath id="b">
+                <path d="M170 52h84.4v201.2H170zm0 0" />
+              </clipPath>
+            </defs>
+            <path
+              d="M59.3 128.4c1.4 2.3 2.5 4.6 3.4 7-1-4.1-2.3-8.1-4.3-12-3.1-6-7.8-5.8-10.7 0-2 4-3.2 8-4.3 12.1 1-2.4 2-4.8 3.4-7.1 3.4-5.8 8.8-6 12.5 0M207.8 128.4a42.9 42.9 0 013.4 7c-1-4.1-2.3-8.1-4.3-12-3.2-6-7.8-5.8-10.7 0-2 4-3.3 8-4.3 12.1.9-2.4 2-4.8 3.4-7.1 3.4-5.8 8.8-6 12.5 0M134.6 92.9c2 3.5 3.6 7 4.8 10.7-1.3-5.4-3-10.6-5.6-15.7-4-7.5-9.7-7.2-13.3 0a75.4 75.4 0 00-5.6 16c1.2-3.8 2.7-7.4 4.7-11 4.1-7.2 10.6-7.5 15 0M43.8 136.8c.9 4.6 3.7 8.3 7.3 9.2 0 2.7 0 5.5.2 8.2.3 3.3.4 6.6 1 9.6.3 2.3 1 2.2 1.3 0 .5-3 .6-6.3 1-9.6l.2-8.2c3.5-1 6.4-4.6 7.2-9.2a17.8 17.8 0 01-9 2.4c-3.5 0-6.6-1-9.2-2.4M192.4 136.8c.8 4.6 3.7 8.3 7.2 9.2 0 2.7 0 5.5.3 8.2.3 3.3.4 6.6 1 9.6.3 2.3.9 2.2 1.2 0 .6-3 .7-6.3 1-9.6.2-2.7.3-5.5.2-8.2 3.6-1 6.4-4.6 7.3-9.2a17.8 17.8 0 01-9.1 2.4c-3.4 0-6.6-1-9.1-2.4M138.3 104.6c-3.1 1.9-7 3-11.3 3-4.3 0-8.2-1.1-11.3-3 1 5.8 4.5 10.3 9 11.5 0 3.4 0 6.8.3 10.2.4 4.1.5 8.2 1.2 12 .4 2.9 1.2 2.7 1.6 0 .7-3.8.8-7.9 1.2-12 .3-3.4.3-6.8.3-10.2 4.5-1.2 8-5.7 9-11.5" />
+            <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>
+  <script>
+    function captchaCallback() {
+      setTimeout(() => document.querySelector('#captcha-form').submit(), 500);
+    }
+  </script>
+</body>
+</html>

examples/captcha/docker-compose.captcha.yml

@@ -0,0 +1,80 @@
+services:
+  traefik:
+    image: "traefik:v2.11.0"
+    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=v1.2.0"
+      - "--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
+    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"
+     
+      # Choose captcha provider
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaProvider=hcaptcha"
+      # Define captcha site key
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaSiteKey=FIXME"
+      # Define captcha secret key
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaSecretKey=FIXME"
+      # Define captcha grade period seconds
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaGracePeriodSeconds=20"
+      # Define captcha HTML file path
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.captchaHTMLFilePath=/captcha.html"
+
+  crowdsec:
+    image: crowdsecurity/crowdsec:v1.6.0
+    container_name: "crowdsec"
+    restart: unless-stopped
+    environment:
+      COLLECTIONS: crowdsecurity/traefik
+      CUSTOM_HOSTNAME: crowdsec
+      BOUNCER_KEY_TRAEFIK_DEV: 40796d93c2958f9e58345514e67740e5
+    volumes:
+      # For captcha and ban mixed decision
+      - './profiles.yaml:/etc/crowdsec/profiles.yaml:ro' 
+      # For captcha only remediation
+      # - './profiles_captcha_only.yaml:/etc/crowdsec/profiles.yaml:ro'
+      - './acquis.yaml:/etc/crowdsec/acquis.yaml:ro'
+      - logs-captcha-enabled:/var/log/traefik:ro
+      - crowdsec-db-captcha-enabled:/var/lib/crowdsec/data/
+      - crowdsec-config-captcha-enabled:/etc/crowdsec/
+    labels:
+      - "traefik.enable=false"
+  
+volumes:
+  logs-captcha-enabled:
+  crowdsec-db-captcha-enabled:
+  crowdsec-config-captcha-enabled:

examples/captcha/profiles.yaml

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

examples/captcha/profiles_captcha_only.yaml

@@ -0,0 +1,17 @@
+name: captcha_remediation
+filters:
+  - Alert.Remediation == true && Alert.GetScope() == "Ip" && Alert.GetScenario() contains "http"
+## Any scenario with http in its name will trigger a captcha challenge
+decisions:
+ - type: captcha
+   duration: 4h
+on_success: break
+---
+name: default_ip_remediation
+filters:
+ - Alert.Remediation == true && Alert.GetScope() == "Ip"
+decisions:
+ - type: ban
+   duration: 4h
+#duration_expr: "Sprintf('%dh', (GetDecisionsCount(Alert.GetValue()) + 1) * 4)"
+on_success: break

examples/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:v2.11.0"
+    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-beta3"
+      - "--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:v1.6.0
+    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

@@ -11,6 +11,19 @@ Install Docker Desktop
 In settings, click on `Kubernetes` menu, and click `Enable Kubernetes`, then `Apply and Restart`.  
 In case of any issue, you can reset the cluster from this menu and the button `Reset Kubernetes Cluster`.
 
+
+##### Install Kubernetes on Minikube
+
+Install Minikube
+
+```bash
+curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 \
+  && chmod +x minikube
+sudo mkdir -p /usr/local/bin/
+sudo install minikube /usr/local/bin/
+minikube start
+``` 
+
 ##### Install Traefik
 
 [getting-started/install-traefik/#use-the-helm-chart](https://doc.traefik.io/traefik/getting-started/install-traefik/#use-the-helm-chart)
@@ -19,11 +32,13 @@ In case of any issue, you can reset the cluster from this menu and the button `R
 helm repo add traefik https://traefik.github.io/charts
 helm repo update
 kubectl create ns traefik
-helm upgrade --install --namespace=traefik \
+helm upgrade --version v26.1.0 --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_
+
 #### View the Traefik dashboard
 
 > Port forward the dashboard:

examples/kubernetes/crowdsec/values.yml

@@ -1,5 +1,5 @@
 image:
-  tag: v1.5.2
+  tag: v1.6.0
 
 agent:
   acquisition:

examples/kubernetes/traefik/values.yml

@@ -1,5 +1,5 @@
 image:
-  tag: v2.10.4
+  tag: v2.11
 
 logs:
   general:
@@ -12,8 +12,6 @@ logs:
 
 experimental:
   plugins:
-    enabled: true
+    bouncer:
-
+      moduleName: "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
-additionalArguments:
+      version: "v1.2.0"
-  - "--experimental.plugins.bouncer.modulename=github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin"
-  - "--experimental.plugins.bouncer.version=v1.1.13"

examples/redis-cache/docker-compose.redis.yml

@@ -39,7 +39,7 @@ services:
   #     # Definition of the router
   #     - "traefik.http.routers.router-foo.rule=Path(`/redis-insecure`)"
   #     - "traefik.http.routers.router-foo.entrypoints=web"
-  #     - "traefik.http.routers.router-foo.middlewares=crowdsec-foo@docker" 
+  #     - "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
@@ -59,7 +59,7 @@ services:
       # Definition of the router
       - "traefik.http.routers.router-bar.rule=Path(`/redis-secure`)"
       - "traefik.http.routers.router-bar.entrypoints=web"
-      - "traefik.http.routers.router-bar.middlewares=crowdsec-bar@docker" 
+      - "traefik.http.routers.router-bar.middlewares=crowdsec@docker" 
       # Definition of the service
       - "traefik.http.services.service-bar.loadbalancer.server.port=80"
       # Definition of the middleware

examples/standalone-mode/docker-compose.alone.yml

@@ -30,16 +30,16 @@ services:
       - "traefik.enable=true"
       - "traefik.http.routers.router-foo.rule=Path(`/foo`)"
       - "traefik.http.routers.router-foo.entrypoints=web"
-      - "traefik.http.routers.router-foo.middlewares=crowdsec-foo@docker" 
+      - "traefik.http.routers.router-foo.middlewares=crowdsec@docker" 
       - "traefik.http.services.service-foo.loadbalancer.server.port=80"
 
-      - "traefik.http.middlewares.crowdsec-foo.plugin.bouncer.enabled=true"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.enabled=true"
-      # - "traefik.http.middlewares.crowdsec-foo.plugin.bouncer.loglevel=DEBUG"
+      # - "traefik.http.middlewares.crowdsec.plugin.bouncer.loglevel=DEBUG"
-      - "traefik.http.middlewares.crowdsec-foo.plugin.bouncer.crowdsecmode=alone"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdsecmode=alone"
-      - "traefik.http.middlewares.crowdsec-foo.plugin.bouncer.crowdseclapikey=40796d93c2958f9e58345514e67740e5"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.crowdseclapikey=40796d93c2958f9e58345514e67740e5"
-      - "traefik.http.middlewares.crowdsec-foo.plugin.bouncer.CrowdsecCapiMachineId=logincacacalfkrjebfreifgzfblezgyfoerxsqxsqxsqxsr"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.CrowdsecCapiMachineId=logincacacalfkrjebfreifgzfblezgyfoerxsqxsqxsqxsr"
-      - "traefik.http.middlewares.crowdsec-foo.plugin.bouncer.CrowdsecCapiPassword=Password2"
+      - "traefik.http.middlewares.crowdsec.plugin.bouncer.CrowdsecCapiPassword=Password2"
-      - "traefik.http.middlewares.crowdsec-foo.plugin.bouncer.crowdseccapiscenarios=crowdsecurity/sshd,crowdsecurity/asterisk_bf,crowdsecurity/asterisk_user_enum,crowdsecurity/base-http-scenarios"
+      - "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/docker-compose.tls-auth.yml

@@ -39,7 +39,7 @@ services:
   #     - "traefik.enable=true"
   #     - "traefik.http.routers.router-foo.rule=Path(`/foo`)"
   #     - "traefik.http.routers.router-foo.entrypoints=web"
-  #     - "traefik.http.routers.router-foo.middlewares=crowdsec-foo@docker" 
+  #     - "traefik.http.routers.router-foo.middlewares=crowdsec@docker" 
   #     - "traefik.http.services.service-foo.loadbalancer.server.port=80"
   #     - "traefik.http.middlewares.crowdsec.plugin.bouncer.enabled=true"
   #     - "traefik.http.middlewares.crowdsec.plugin.bouncer.loglevel=DEBUG"
@@ -56,7 +56,7 @@ services:
       - "traefik.enable=true"
       - "traefik.http.routers.router-bar.rule=Path(`/bar`)"
       - "traefik.http.routers.router-bar.entrypoints=web"
-      - "traefik.http.routers.router-bar.middlewares=crowdsec-bar@docker"
+      - "traefik.http.routers.router-bar.middlewares=crowdsec@docker"
       - "traefik.http.services.service-bar.loadbalancer.server.port=80"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.enabled=true"
       - "traefik.http.middlewares.crowdsec.plugin.bouncer.loglevel=DEBUG"

pkg/cache/cache.go

@@ -12,12 +12,17 @@ import (
 )
 
 const (
-	cacheBannedValue   = "t"
+	// BannedValue Banned string.
-	cacheNoBannedValue = "f"
+	BannedValue = "t"
-)
+	// NoBannedValue No banned string.
-
+	NoBannedValue = "f"
+	// CaptchaValue Need captcha string.
+	CaptchaValue = "c"
+	// CaptchaDoneValue Captcha done string.
+	CaptchaDoneValue = "d"
 	// CacheMiss error string when cache is miss.
-const CacheMiss = "cache:miss"
+	CacheMiss = "cache:miss"
+)
 
 //nolint:gochecknoglobals
 var (
@@ -27,55 +32,55 @@ var (
 
 type localCache struct{}
 
-func (localCache) getDecision(clientIP string) (bool, error) {
+func (localCache) get(key string) (string, error) {
-	banned, isCached := cache.Get(clientIP)
+	value, isCached := cache.Get(key)
-	bannedString, isValid := banned.(string)
+	valueString, isValid := value.(string)
-	if isCached && isValid && len(bannedString) > 0 {
+	if isCached && isValid && len(valueString) > 0 {
-		return bannedString == cacheBannedValue, nil
+		return valueString, nil
 	}
-	return false, fmt.Errorf(CacheMiss)
+	return "", fmt.Errorf(CacheMiss)
 }
 
-func (localCache) setDecision(clientIP string, value string, duration int64) {
+func (localCache) set(key, value string, duration int64) {
-	cache.Set(clientIP, value, duration)
+	cache.Set(key, value, duration)
 }
 
-func (localCache) deleteDecision(clientIP string) {
+func (localCache) delete(key string) {
-	cache.Del(clientIP)
+	cache.Del(key)
 }
 
 type redisCache struct {
 	log *logger.Log
 }
 
-func (redisCache) getDecision(clientIP string) (bool, error) {
+func (redisCache) get(key string) (string, error) {
-	banned, err := redis.Get(clientIP)
+	value, err := redis.Get(key)
-	bannedString := string(banned)
+	valueString := string(value)
-	if err == nil && len(bannedString) > 0 {
+	if err == nil && len(valueString) > 0 {
-		return bannedString == cacheBannedValue, nil
+		return valueString, nil
 	}
 	if err.Error() == simpleredis.RedisMiss {
-		return false, fmt.Errorf(CacheMiss)
+		return "", fmt.Errorf(CacheMiss)
 	}
-	return false, err
+	return "", err
 }
 
-func (rc redisCache) setDecision(clientIP string, value string, duration int64) {
+func (rc redisCache) set(key, value string, duration int64) {
-	if err := redis.Set(clientIP, []byte(value), duration); err != nil {
+	if err := redis.Set(key, []byte(value), duration); err != nil {
 		rc.log.Error(fmt.Sprintf("cache:setDecisionRedisCache %s", err.Error()))
 	}
 }
 
-func (rc redisCache) deleteDecision(clientIP string) {
+func (rc redisCache) delete(key string) {
-	if err := redis.Del(clientIP); err != nil {
+	if err := redis.Del(key); err != nil {
 		rc.log.Error(fmt.Sprintf("cache:deleteDecisionRedisCache %s", err.Error()))
 	}
 }
 
 type cacheInterface interface {
-	setDecision(clientIP string, value string, duration int64)
+	set(key, value string, duration int64)
-	getDecision(clientIP string) (bool, error)
+	get(key string) (string, error)
-	deleteDecision(clientIP string)
+	delete(key string)
 }
 
 // Client Cache client.
@@ -84,8 +89,8 @@ type Client struct {
 	log   *logger.Log
 }
 
-// Init Initialize cache client.
+// New Initialize cache client.
-func (c *Client) Init(log *logger.Log, isRedis bool, host, pass, database string) {
+func (c *Client) New(log *logger.Log, isRedis bool, host, pass, database string) {
 	c.log = log
 	if isRedis {
 		redis.Init(host, pass, database)
@@ -96,27 +101,21 @@ func (c *Client) Init(log *logger.Log, isRedis bool, host, pass, database string
 	c.log.Debug(fmt.Sprintf("cache:New initialized isRedis:%v", isRedis))
 }
 
-// DeleteDecision delete decision in cache.
+// Delete delete decision in cache.
-func (c *Client) DeleteDecision(clientIP string) {
+func (c *Client) Delete(key string) {
-	c.log.Debug(fmt.Sprintf("cache:DeleteDecision ip:%v", clientIP))
+	c.log.Debug(fmt.Sprintf("cache:Delete key:%v", key))
-	c.cache.deleteDecision(clientIP)
+	c.cache.delete(key)
 }
 
-// GetDecision check in the cache if the IP has the banned / not banned value.
+// Get check in the cache if the IP has the banned / not banned value.
 // Otherwise return with an error to add the IP in cache if we are on.
-func (c *Client) GetDecision(clientIP string) (bool, error) {
+func (c *Client) Get(key string) (string, error) {
-	c.log.Debug(fmt.Sprintf("cache:GetDecision ip:%v", clientIP))
+	c.log.Debug(fmt.Sprintf("cache:Get key:%v", key))
-	return c.cache.getDecision(clientIP)
+	return c.cache.get(key)
 }
 
-// SetDecision update the cache with the IP as key and the value banned / not banned.
+// Set update the cache with the IP as key and the value banned / not banned.
-func (c *Client) SetDecision(clientIP string, isBanned bool, duration int64) {
+func (c *Client) Set(key string, value string, duration int64) {
-	c.log.Debug(fmt.Sprintf("cache:SetDecision ip:%v isBanned:%v duration:%vs", clientIP, isBanned, duration))
+	c.log.Debug(fmt.Sprintf("cache:Set key:%v value:%v duration:%vs", key, value, duration))
-	var value string
+	c.cache.set(key, value, duration)
-	if isBanned {
-		value = cacheBannedValue
-	} else {
-		value = cacheNoBannedValue
-	}
-	c.cache.setDecision(clientIP, value, duration)
 }

pkg/cache/cache_test.go

@@ -8,97 +8,117 @@ import (
 	logger "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/logger"
 )
 
-func Test_GetDecision(t *testing.T) {
+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.SetDecision(IPInCache, true, 10)
+	client.Set(IPInCache, BannedValue, 10)
 	type args struct {
 		clientIP string
 	}
 	tests := []struct {
 		name     string
 		args     args
-		want     bool
+		want     string
 		wantErr  bool
 		valueErr string
 	}{
-		{name: "Fetch Known valid IP", args: args{clientIP: IPInCache}, want: true, wantErr: false, valueErr: ""},
+		{name: "Fetch Known valid IP", args: args{clientIP: IPInCache}, want: BannedValue, wantErr: false, valueErr: ""},
-		{name: "Fetch Unknown valid IP", args: args{clientIP: IPNotInCache}, want: false, wantErr: true, valueErr: "cache:miss"},
+		{name: "Fetch Unknown valid IP", args: args{clientIP: IPNotInCache}, want: "", wantErr: true, valueErr: CacheMiss},
-		{name: "Fetch invalid value", args: args{clientIP: "test"}, want: false, wantErr: true, valueErr: "cache:miss"},
+		{name: "Fetch invalid value", args: args{clientIP: "test"}, want: "", wantErr: true, valueErr: CacheMiss},
-		{name: "Fetch empty value", args: args{clientIP: ""}, want: false, wantErr: true, valueErr: "cache:miss"},
+		{name: "Fetch empty value", args: args{clientIP: ""}, want: "", wantErr: true, valueErr: CacheMiss},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			got, err := client.GetDecision(tt.args.clientIP)
+			got, err := client.Get(tt.args.clientIP)
 			if (err != nil) != tt.wantErr {
-				t.Errorf("GetDecision() error = %v, wantErr %v", err, tt.wantErr)
+				t.Errorf("Get() error = %v, wantErr %v", err, tt.wantErr)
 				return
 			}
 			if got != tt.want {
-				t.Errorf("GetDecision() = %v, want %v", got, tt.want)
+				t.Errorf("Get() = %v, want %v", got, tt.want)
 				return
 			}
 			if tt.valueErr != "" && tt.valueErr != err.Error() {
-				t.Errorf("GetDecision() err = %v, want %v", err.Error(), tt.valueErr)
+				t.Errorf("Get() err = %v, want %v", err.Error(), tt.valueErr)
 			}
 		})
 	}
 }
 
-func Test_SetDecision(t *testing.T) {
+func Test_Set(t *testing.T) {
 	client := &Client{cache: &localCache{}, log: logger.New("INFO")}
 	IPInCache := "10.0.0.11"
 	type args struct {
 		clientIP string
-		value    bool
+		value    string
 		duration int64
 	}
+
 	tests := []struct {
 		name     string
 		args     args
-		want bool
+		want     string
+		wantErr  bool
+		valueErr string
 	}{
-		{name: "Set valid IP in local cache for 0 sec", args: args{clientIP: IPInCache, value: true, duration: 0}, want: false},
+		{name: "Set valid IP in local cache for 0 sec", args: args{clientIP: IPInCache, value: BannedValue, duration: 0}, want: "", wantErr: true, valueErr: CacheMiss},
-		{name: "Set valid IP in local cache for 10 sec", args: args{clientIP: IPInCache, value: true, duration: 10}, want: true},
+		{name: "Set valid IP in local cache for 10 sec", args: args{clientIP: IPInCache, value: BannedValue, duration: 10}, want: BannedValue, wantErr: false, valueErr: ""},
-		{name: "Set valid IP in local cache for 10 sec", args: args{clientIP: IPInCache, value: false, duration: 10}, want: false},
+		{name: "Set valid IP in local cache for 10 sec", args: args{clientIP: IPInCache, value: NoBannedValue, duration: 10}, want: NoBannedValue, wantErr: false, valueErr: ""},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			client.SetDecision(tt.args.clientIP, tt.args.value, tt.args.duration)
+			client.Set(tt.args.clientIP, tt.args.value, tt.args.duration)
-			got, _ := client.GetDecision(tt.args.clientIP)
+			got, err := client.Get(tt.args.clientIP)
-			if got != tt.want {
+			if (err != nil) != tt.wantErr {
-				t.Errorf("SetDecision() = %v, want %v", got, tt.want)
+				t.Errorf("Set() error = %v, wantErr %v", err, tt.wantErr)
 				return
 			}
+			if got != tt.want {
+				t.Errorf("Set() = %v, want %v", got, tt.want)
+				return
+			}
+			if tt.valueErr != "" && tt.valueErr != err.Error() {
+				t.Errorf("Set() err = %v, want %v", err.Error(), tt.valueErr)
+			}
 		})
 	}
 }
 
-func Test_DeleteDecision(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.SetDecision(IPInCache, true, 10)
+	client.Set(IPInCache, BannedValue, 10)
 	type args struct {
 		clientIP string
 	}
+
 	tests := []struct {
 		name     string
 		args     args
-		want bool
+		want     string
+		wantErr  bool
+		valueErr string
 	}{
-		{name: "Delete Known valid IP", args: args{clientIP: IPInCache}, want: false},
+		{name: "Delete Known valid IP", args: args{clientIP: IPInCache}, want: "", wantErr: true, valueErr: CacheMiss},
-		{name: "Delete Unknown valid IP", args: args{clientIP: IPNotInCache}, want: false},
+		{name: "Delete Unknown valid IP", args: args{clientIP: IPNotInCache}, want: "", wantErr: true, valueErr: CacheMiss},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			client.DeleteDecision(tt.args.clientIP)
+			client.Delete(tt.args.clientIP)
-			got, _ := client.GetDecision(tt.args.clientIP)
+			got, err := client.Get(tt.args.clientIP)
-			if got != tt.want {
+			if (err != nil) != tt.wantErr {
-				t.Errorf("DeleteDecision() = %v, want %v", got, tt.want)
+				t.Errorf("Delete() error = %v, wantErr %v", err, tt.wantErr)
 				return
 			}
+			if got != tt.want {
+				t.Errorf("Delete() = %v, want %v", got, tt.want)
+				return
+			}
+			if tt.valueErr != "" && tt.valueErr != err.Error() {
+				t.Errorf("Delete() err = %v, want %v", err.Error(), tt.valueErr)
+			}
 		})
 	}
 }

pkg/captcha/captcha.go

@@ -0,0 +1,145 @@
+// Package captcha implements utility for captcha management.
+package captcha
+
+import (
+	"encoding/json"
+	"fmt"
+	"html/template"
+	"net/http"
+	"net/url"
+	"strings"
+
+	cache "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/cache"
+	configuration "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/configuration"
+	logger "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/logger"
+)
+
+// Client Captcha client.
+type Client struct {
+	Valid              bool
+	provider           string
+	siteKey            string
+	secretKey          string
+	gracePeriodSeconds int64
+	captchaTemplate    *template.Template
+	cacheClient        *cache.Client
+	httpClient         *http.Client
+	log                *logger.Log
+}
+
+type infoProvider struct {
+	js       string
+	key      string
+	validate string
+}
+
+var (
+	//nolint:gochecknoglobals
+	captcha = map[string]infoProvider{
+		configuration.HcaptchaProvider: {
+			js:       "https://hcaptcha.com/1/api.js",
+			key:      "h-captcha",
+			validate: "https://api.hcaptcha.com/siteverify",
+		},
+		configuration.RecaptchaProvider: {
+			js:       "https://www.google.com/recaptcha/api.js",
+			key:      "g-recaptcha",
+			validate: "https://www.google.com/recaptcha/api/siteverify",
+		},
+		configuration.TurnstileProvider: {
+			js:       "https://challenges.cloudflare.com/turnstile/v0/api.js",
+			key:      "cf-captcha",
+			validate: "https://challenges.cloudflare.com/turnstile/v0/siteverify",
+		},
+	}
+)
+
+// New Initialize captcha client.
+func (c *Client) New(log *logger.Log, cacheClient *cache.Client, httpClient *http.Client, provider, siteKey, secretKey, captchaTemplatePath string, gracePeriodSeconds int64) error {
+	c.Valid = provider != ""
+	if !c.Valid {
+		return nil
+	}
+	c.siteKey = siteKey
+	c.secretKey = secretKey
+	c.provider = provider
+	html, _ := configuration.GetHTMLTemplate(captchaTemplatePath)
+	c.captchaTemplate = html
+	c.gracePeriodSeconds = gracePeriodSeconds
+	c.log = log
+	c.httpClient = httpClient
+	c.cacheClient = cacheClient
+	return nil
+}
+
+// ServeHTTP Handle captcha html page or validation.
+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()))
+		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)
+		http.Redirect(rw, r, r.URL.String(), http.StatusFound)
+		return
+	}
+	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(fmt.Sprintf("captcha:ServeHTTP captchaTemplateServe %s", 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))
+	passed := value == cache.CaptchaDoneValue
+	c.log.Debug(fmt.Sprintf("captcha:Check ip:%s pass:%v", remoteIP, passed))
+	return passed
+}
+
+type responseProvider struct {
+	Success bool `json:"success"`
+}
+
+// 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))
+		return false, nil
+	}
+	var response = r.FormValue(fmt.Sprintf("%s-response", captcha[c.provider].key))
+	if response == "" {
+		c.log.Debug("captcha:Validate no captcha response found in request")
+		return false, nil
+	}
+	var body = url.Values{}
+	body.Add("secret", c.secretKey)
+	body.Add("response", response)
+	res, err := c.httpClient.PostForm(captcha[c.provider].validate, body)
+	if err != nil {
+		return false, err
+	}
+	defer func() {
+		if err = res.Body.Close(); err != nil {
+			c.log.Error(fmt.Sprintf("captcha:Validate %s", err.Error()))
+		}
+	}()
+	if !strings.Contains(res.Header.Get("content-type"), "application/json") {
+		c.log.Debug("captcha:Validate responseType:noJson")
+		return false, nil
+	}
+	var captchaResponse responseProvider
+	err = json.NewDecoder(res.Body).Decode(&captchaResponse)
+	if err != nil {
+		return false, err
+	}
+	c.log.Debug(fmt.Sprintf("captcha:Validate success:%v", captchaResponse.Success))
+	return captchaResponse.Success, nil
+}

pkg/configuration/configuration.go

@@ -5,6 +5,7 @@ import (
 	"crypto/tls"
 	"crypto/x509"
 	"fmt"
+	"html/template"
 	"net/http"
 	"net/url"
 	"os"
@@ -26,6 +27,9 @@ const (
 	AppsecMode        = "appsec"
 	HTTPS             = "https"
 	HTTP              = "http"
+	HcaptchaProvider  = "hcaptcha"
+	RecaptchaProvider = "recaptcha"
+	TurnstileProvider = "turnstile"
 )
 
 // Config the plugin configuration.
@@ -63,6 +67,14 @@ type Config struct {
 	RedisCachePassword                       string   `json:"redisCachePassword,omitempty"`
 	RedisCachePasswordFile                   string   `json:"redisCachePasswordFile,omitempty"`
 	RedisCacheDatabase                       string   `json:"redisCacheDatabase,omitempty"`
+	BanHTMLFilePath                          string   `json:"banHtmlFilePath,omitempty"`
+	CaptchaHTMLFilePath                      string   `json:"captchaHtmlFilePath,omitempty"`
+	CaptchaProvider                          string   `json:"captchaProvider,omitempty"`
+	CaptchaSiteKey                           string   `json:"captchaSiteKey,omitempty"`
+	CaptchaSiteKeyFile                       string   `json:"captchaSiteKeyFile,omitempty"`
+	CaptchaSecretKey                         string   `json:"captchaSecretKey,omitempty"`
+	CaptchaSecretKeyFile                     string   `json:"captchaSecretKeyFile,omitempty"`
+	CaptchaGracePeriodSeconds                int64    `json:"captchaGracePeriodSeconds,omitempty"`
 }
 
 func contains(source []string, target string) bool {
@@ -90,6 +102,12 @@ func New() *Config {
 		UpdateIntervalSeconds:         60,
 		DefaultDecisionSeconds:        60,
 		HTTPTimeoutSeconds:            10,
+		CaptchaProvider:               "",
+		CaptchaSiteKey:                "",
+		CaptchaSecretKey:              "",
+		CaptchaGracePeriodSeconds:     1800,
+		CaptchaHTMLFilePath:           "/captcha.html",
+		BanHTMLFilePath:               "",
 		ForwardedHeadersCustomName:    "X-Forwarded-For",
 		ForwardedHeadersTrustedIPs:    []string{},
 		ClientTrustedIPs:              []string{},
@@ -127,6 +145,25 @@ 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, fmt.Errorf("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
@@ -156,6 +193,23 @@ func ValidateParams(config *Config) error {
 		return nil
 	}
 
+	if config.CaptchaProvider != "" {
+		if _, err := GetVariable(config, "CaptchaSiteKey"); err != nil {
+			return err
+		}
+		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 {
 		return err
 	}
@@ -257,6 +311,7 @@ func validateParamsRequired(config *Config) error {
 		"UpdateIntervalSeconds":     config.UpdateIntervalSeconds,
 		"DefaultDecisionSeconds":    config.DefaultDecisionSeconds,
 		"HTTPTimeoutSeconds":        config.HTTPTimeoutSeconds,
+		"CaptchaGracePeriodSeconds": config.CaptchaGracePeriodSeconds,
 	}
 	for key, val := range requiredInt {
 		if val < 1 {
@@ -269,6 +324,9 @@ func validateParamsRequired(config *Config) error {
 	if !contains([]string{HTTP, HTTPS}, config.CrowdsecLapiScheme) {
 		return fmt.Errorf("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 nil
 }