etherpad: update to v1.8.17

Following https://github.com/bigbluebutton/bigbluebutton/pull/14550 .

Also updated the settings.json file with https://github.com/ether/etherpad-lite/blob/1.8.17/settings.json.template .

Made sure to preserve BigBlueButton common settings and a couple of extras
that I imagine that made sense for the docker environment:

 - ip: 0.0.0.0
	BigBlueButton uses 127.0.0.1

  /*
   * IP and port which Etherpad should bind at.
   *
   * Binding to a Unix socket is also supported: just use an empty string for
   * the ip, and put the full path to the socket in the port parameter.
   *
   * EXAMPLE USING UNIX SOCKET:
   *    "ip": "",                             // <-- has to be an empty string
   *    "port" : "/somepath/etherpad.socket", // <-- path to a Unix socket
   */
  "ip": "0.0.0.0",
  "port": 9001,

 - host: redis
	BigBlueButton uses 127.0.0.1

  /*
   * The type of the database.
   *
   * You can choose between many DB drivers, for example: dirty, postgres,
   * sqlite, mysql.
   *
   * You shouldn't use "dirty" for for anything else than testing or
   * development.
   *
   *
   * Database specific settings are dependent on dbType, and go in dbSettings.
   * Remember that since Etherpad 1.6.0 you can also store this information in
   * credentials.json.
   *
   * For a complete list of the supported drivers, please refer to:
   * https://www.npmjs.com/package/ueberdb2
   */

  "dbType": "redis",
  "dbSettings": {
    "host": "redis",
    "port": 6379
  },

 - soffice: /etherpad-export.sh
	BigBlueButton uses /usr/share/bbb-libreoffice-conversion/etherpad-export.sh

  /*
   * This is the absolute path to the soffice executable.
   *
   * LibreOffice can be used in lieu of Abiword to export pads.
   * Setting it to null disables LibreOffice exporting.
   */
  "soffice": "/etherpad-export.sh",

 - disableIPlogging: true
	BigBlueButton uses false (Etherpad's default)

  /*
   * Privacy: disable IP logging
   */
  "disableIPlogging": true,

 - host: redis
	BigBlueButton uses 127.0.0.1

  /*
   * Redis publisher plugin configuration.
   * npm i git+https://git@github.com/mconf/ep_redis_publisher.git
   */

  "ep_redis_publisher": {
    "host": "redis",
    "port": 6379
  },

mod/etherpad/Dockerfile

@@ -1,4 +1,4 @@
-FROM etherpad/etherpad:1.8.16
+FROM etherpad/etherpad:1.8.17
 
 USER root
 

mod/etherpad/settings.json

@@ -15,6 +15,31 @@
  *
  * This is useful, for example, when running in a Docker container.
  *
+ * DETAILED RULES:
+ *   - If the environment variable is set to the string "true" or "false", the
+ *     value becomes Boolean true or false.
+ *   - If the environment variable is set to the string "null", the value
+ *     becomes null.
+ *   - If the environment variable is set to the string "undefined", the setting
+ *     is removed entirely, except when used as the member of an array in which
+ *     case it becomes null.
+ *   - If the environment variable is set to a string representation of a finite
+ *     number, the string is converted to that number.
+ *   - If the environment variable is set to any other string, including the
+ *     empty string, the value is that string.
+ *   - If the environment variable is unset and a default value is provided, the
+ *     value is as if the environment variable was set to the provided default:
+ *       - "${UNSET_VAR:}" becomes the empty string.
+ *       - "${UNSET_VAR:foo}" becomes the string "foo".
+ *       - "${UNSET_VAR:true}" and "${UNSET_VAR:false}" become true and false.
+ *       - "${UNSET_VAR:null}" becomes null.
+ *       - "${UNSET_VAR:undefined}" causes the setting to be removed (or be set
+ *         to null, if used as a member of an array).
+ *   - If the environment variable is unset and no default value is provided,
+ *     the value becomes null. THIS BEHAVIOR MAY CHANGE IN A FUTURE VERSION OF
+ *     ETHERPAD; if you want the default value to be null, you should explicitly
+ *     specify "null" as the default value.
+ *
  * EXAMPLE:
  *    "port":     "${PORT:9001}"
  *    "minify":   "${MINIFY}"
@@ -56,18 +81,27 @@
  *    "password": "${PASSW}"  // if PASSW is not defined would result in password === null
  *    "password": "${PASSW:}" // if PASSW is not defined would result in password === ''
  *
+ *    If you want to use an empty value (null) as default value for a variable,
+ *    simply do not set it, without putting any colons: "${ABIWORD}".
+ *
+ * 3) if you want to use newlines in the default value of a string parameter,
+ *    use "\n" as usual.
+ *
+ *    "defaultPadText" : "${DEFAULT_PAD_TEXT}Line 1\nLine 2"
  */
- {
+{
   /*
    * Name your instance!
    */
   "title": "Etherpad",
 
   /*
-     * favicon default name
+   * Pathname of the favicon you want to use. If null, the skin's favicon is
-     * alternatively, set up a fully specified Url to your own favicon
+   * used if one is provided by the skin, otherwise the default Etherpad favicon
+   * is used. If this is a relative path it is interpreted as relative to the
+   * Etherpad root directory.
    */
-    "favicon": "favicon.ico",
+  "favicon": null,
 
   /*
    * Skin name.
@@ -83,7 +117,40 @@
   "skinName": "bigbluebutton",
 
   /*
-     * IP and port which etherpad should bind at
+   * Skin Variants
+   *
+   * Use the UI skin variants builder at /p/test#skinvariantsbuilder
+   *
+   * For the colibris skin only, you can choose how to render the three main
+   * containers:
+   * - toolbar (top menu with icons)
+   * - editor (containing the text of the pad)
+   * - background (area outside of editor, mostly visible when using page style)
+   *
+   * For each of the 3 containers you can choose 4 color combinations:
+   * super-light, light, dark, super-dark.
+   *
+   * For example, to make the toolbar dark, you will include "dark-toolbar" into
+   * skinVariants.
+   *
+   * You can provide multiple skin variants separated by spaces. Default
+   * skinVariant is "super-light-toolbar super-light-editor light-background".
+   *
+   * For the editor container, you can also make it full width by adding
+   * "full-width-editor" variant (by default editor is rendered as a page, with
+   * a max-width of 900px).
+   */
+  "skinVariants": "super-light-toolbar super-light-editor light-background",
+
+  /*
+   * IP and port which Etherpad should bind at.
+   *
+   * Binding to a Unix socket is also supported: just use an empty string for
+   * the ip, and put the full path to the socket in the port parameter.
+   *
+   * EXAMPLE USING UNIX SOCKET:
+   *    "ip": "",                             // <-- has to be an empty string
+   *    "port" : "/somepath/etherpad.socket", // <-- path to a Unix socket
    */
   "ip": "0.0.0.0",
   "port": 9001,
@@ -122,7 +189,7 @@
    *
    *
    * Database specific settings are dependent on dbType, and go in dbSettings.
-     * Remember that since Etherpad 1.6.0 you can also store these informations in
+   * Remember that since Etherpad 1.6.0 you can also store this information in
    * credentials.json.
    *
    * For a complete list of the supported drivers, please refer to:
@@ -141,22 +208,10 @@
    * See: https://github.com/ether/etherpad-lite/wiki/How-to-use-Etherpad-Lite-with-MySQL
    */
 
-    /*
-    "dbType" : "mysql",
-    "dbSettings" : {
-      "user":     "etherpaduser",
-      "host":     "localhost",
-      "port":     3306,
-      "password": "PASSWORD",
-      "database": "etherpad_lite_db",
-      "charset":  "utf8mb4"
-    },
-    */
-  
   /*
   "dbType" : "redis",
   "dbSettings" : {
-      "host": "localhost",
+    "host": "127.0.0.1",
     "port": 6379,
     "client_options": {
       "password": "PASSWORD"
@@ -185,7 +240,7 @@
     "rtl":              false,
     "alwaysShowChat":   false,
     "chatAndUsers":     false,
-      "lang":             "en-gb"
+    "lang":             "en"
   },
 
   /*
@@ -235,12 +290,6 @@
    */
   "editOnly": false,
 
-    /*
-     * If set to true, those users who have a valid session will automatically be
-     * granted access to password protected pads.
-     */
-    "sessionNoPassword": false,
-  
   /*
    * If true, all css & js will be minified before sending to the client.
    *
@@ -328,6 +377,7 @@
      */
     "sameSite": "None"
   },
+
   /*
    * Privacy: disable IP logging
    */
@@ -383,10 +433,22 @@
   },
 
   /*
-     * Users for basic authentication.
+   * User accounts. These accounts are used by:
+   *   - default HTTP basic authentication if no plugin handles authentication
+   *   - some but not all authentication plugins
+   *   - some but not all authorization plugins
    *
-     * is_admin = true gives access to /admin.
+   * User properties:
-     * If you do not uncomment this, /admin will not be available!
+   *   - password: The user's password. Some authentication plugins will ignore
+   *     this.
+   *   - is_admin: true gives access to /admin. Defaults to false. If you do not
+   *     uncomment this, /admin will not be available!
+   *   - readOnly: If true, this user will not be able to create new pads or
+   *     modify existing pads. Defaults to false.
+   *   - canCreate: If this is true and readOnly is false, this user can create
+   *     new pads. Defaults to true.
+   *
+   * Authentication and authorization plugins may define additional properties.
    *
    * WARNING: passwords should not be stored in plaintext in this file.
    *          If you want to mitigate this, please install ep_hash_auth and
@@ -415,6 +477,17 @@
    */
   "socketTransportProtocols" : ["xhr-polling", "jsonp-polling", "htmlfile"],
 
+  "socketIo": {
+    /*
+     * Maximum permitted client message size (in bytes). All messages from
+     * clients that are larger than this will be rejected. Large values make it
+     * possible to paste large amounts of text, and plugins may require a larger
+     * value to work properly, but increasing the value increases susceptibility
+     * to denial of service attacks (malicious clients can exhaust memory).
+     */
+    "maxHttpBufferSize": 10000
+  },
+
   /*
    * Allow Load Testing tools to hit the Etherpad Instance.
    *
@@ -422,6 +495,11 @@
    */
   "loadTest": false,
 
+  /**
+  * Disable dump of objects preventing a clean exit
+  */
+  "dumpOnUncleanExit": false,
+
   /*
    * Disable indentation on new line when previous line ends with some special
    * chars (':', '[', '(', '{')
@@ -431,18 +509,15 @@
   "indentationOnNewLine": false,
   */
 
-    /*
-     * Delete pads plugin configuration.
-     */
   "ep_pad_ttl": {
     "ttl": 86400, // 24 hours
     "timeout": 30,
-      "interval": 21600, // 6 hour
+    "interval": 21600 // 6 hours
   },
 
   /*
    * Redis publisher plugin configuration.
-     * npm i git+https://git@github.com/pedrobmarin/ep_redis_publisher.git
+   * npm i git+https://git@github.com/mconf/ep_redis_publisher.git
    */
 
   "ep_redis_publisher": {
@@ -451,16 +526,32 @@
   },
 
   /*
-    "ep_redis_publisher": {
+   * From Etherpad 1.8.3 onwards, import and export of pads is always rate
-      "host": "localhost",
+   * limited.
-      "port": 6379,
+   *
-      "password": "PASSWORD"
+   * The default is to allow at most 10 requests per IP in a 90 seconds window.
-    },
+   * After that the import/export request is rejected.
+   *
+   * See https://github.com/nfriedly/express-rate-limit for more options
    */
+  "importExportRateLimiting": {
+    // duration of the rate limit window (milliseconds)
+    "windowMs": 90000,
 
+    // maximum number of requests per IP to allow during the rate limit window
+    "max": 10
+  },
 
   /*
-      * From Etherpad 1.9.0 onwards, when Etherpad is in production mode commits from individual users are rate limited
+   * From Etherpad 1.8.3 onwards, the maximum allowed size for a single imported
+   * file is always bounded.
+   *
+   * File size is specified in bytes. Default is 50 MB.
+   */
+  "importMaxFileSize": 52428800, // 50 * 1024 * 1024
+
+  /*
+   * From Etherpad 1.8.5 onwards, when Etherpad is in production mode commits from individual users are rate limited
    *
    * The default is to allow at most 10 changes per IP in a 1 second window.
    * After that the change is rejected.
@@ -471,7 +562,7 @@
     // duration of the rate limit window (seconds)
     "duration": 1,
 
-      // maximum number of chanes per IP to allow during the rate limit window
+    // maximum number of changes per IP to allow during the rate limit window
     "points": 100
   },
 
@@ -504,58 +595,12 @@
    */
   "loglevel": "INFO",
 
-    /*
-     * Logging configuration. See log4js documentation for further information:
-     * https://github.com/nomiddlename/log4js-node
-     *
-     * You can add as many appenders as you want here.
-     */
-    "logconfig" :
-      { "appenders": [
-          { "type": "console"
-          //, "category": "access"// only logs pad access
-          }
-  
-        /*
-        , { "type": "file"
-        , "filename": "your-log-file-here.log"
-        , "maxLogSize": 1024
-        , "backups": 3 // how many log files there're gonna be at max
-        //, "category": "test" // only log a specific category
-          }
-        */
-  
-        /*
-        , { "type": "logLevelFilter"
-          , "level": "warn" // filters out all log messages that have a lower level than "error"
-          , "appender":
-            {  Use whatever appender you want here  }
-          }
-        */
-  
-        /*
-        , { "type": "logLevelFilter"
-          , "level": "error" // filters out all log messages that have a lower level than "error"
-          , "appender":
-            { "type": "smtp"
-            , "subject": "An error occurred in your EPL instance!"
-            , "recipients": "bar@blurdybloop.com, baz@blurdybloop.com"
-            , "sendInterval": 300 // 60 * 5 = 5 minutes -- will buffer log messages; set to 0 to send a mail for every message
-            , "transport": "SMTP", "SMTP": { // see https://github.com/andris9/Nodemailer#possible-transport-methods
-                "host": "smtp.example.com", "port": 465,
-                "secureConnection": true,
-                "auth": {
-                    "user": "foo@example.com",
-                    "pass": "bar_foo"
-                }
-              }
-            }
-          }
-        */
-  
-        ]
-      }, // logconfig
   /* Override any strings found in locale directories */
-    "customLocaleStrings": {}
+  "customLocaleStrings": {},
-  }
+
+  /* Disable Admin UI tests */
+  "enableAdminUITests": false
+}
+
+