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BookStack/.env.example.complete
Luke T. Shumaker c76d12d1de Oidc: Properly query the UserInfo Endpoint 
BooksStack's OIDC Client requests the 'profile' and 'email' scope values
in order to have access to the 'name', 'email', and other claims.  It
looks for these claims in the ID Token that is returned along with the
Access Token.

However, the OIDC-core specification section 5.4 [1] only requires that
the Provider include those claims in the ID Token *if* an Access Token is
not also issued.  If an Access Token is issued, the Provider can leave out
those claims from the ID Token, and the Client is supposed to obtain them
by submitting the Access Token to the UserInfo Endpoint.

So I suppose it's just good luck that the OIDC Providers that BookStack
has been tested with just so happen to also stick those claims in the ID
Token even though they don't have to.  But others (in particular:
https://login.infomaniak.com) don't do so, and require fetching the
UserInfo Endpoint.)

A workaround is currently possible by having the user write a theme with a
ThemeEvents::OIDC_ID_TOKEN_PRE_VALIDATE hook that fetches the UserInfo
Endpoint.  This workaround isn't great, for a few reasons:
 1. Asking the user to implement core parts of the OIDC protocol is silly.
 2. The user either needs to re-fetch the .well-known/openid-configuration
    file to discover the endpoint (adding yet another round-trip to each
    login) or hard-code the endpoint, which is fragile.
 3. The hook doesn't receive the HTTP client configuration.

So, have BookStack's OidcService fetch the UserInfo Endpoint and inject
those claims into the ID Token, if a UserInfo Endpoint is defined.
Two points about this:
 - Injecting them into the ID Token's claims is the most obvious approach
   given the current code structure; though I'm not sure it is the best
   approach, perhaps it should instead fetch the user info in
   processAuthorizationResponse() and pass that as an argument to
   processAccessTokenCallback() which would then need a bit of
   restructuring.  But this made sense because it's also how the
   ThemeEvents::OIDC_ID_TOKEN_PRE_VALIDATE hook works.
 - OIDC *requires* that a UserInfo Endpoint exists, so why bother with
   that "if a UserInfo Endpoint is defined" bit?  Simply out of an
   abundance of caution that there's an existing BookStack user that is
   relying on it not fetching the UserInfo Endpoint in order to work with
   a non-compliant OIDC Provider.

[1]: https://openid.net/specs/openid-connect-core-1_0.html#ScopeClaims
2023-12-15 14:11:48 -07:00

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# Full list of environment variables that can be used with BookStack.
# Selectively copy these to your '.env' file as required.
# Each option is shown with it's default value.
# Do not copy this whole file to use as your '.env' file.
# The details here only serve as a quick reference.
# Please refer to the BookStack documentation for full details:
# https://www.bookstackapp.com/docs/
# Application environment
# Can be 'production', 'development', 'testing' or 'demo'
APP_ENV=production
# Enable debug mode
# Shows advanced debug information and errors.
# CAN EXPOSE OTHER VARIABLES, LEAVE DISABLED
APP_DEBUG=false
# Application key
# Used for encryption where needed.
# Run `php artisan key:generate` to generate a valid key.
APP_KEY=SomeRandomString
# Application URL
# This must be the root URL that you want to host BookStack on.
# All URL's in BookStack will be generated using this value.
APP_URL=https://example.com
# Application default language
# The default language choice to show.
# May be overridden by user-preference or visitor browser settings.
APP_LANG=en
# Auto-detect language for public visitors.
# Uses browser-sent headers to infer a language.
# APP_LANG will be used if such a header is not provided.
APP_AUTO_LANG_PUBLIC=true
# Application timezone
# Used where dates are displayed such as on exported content.
# Valid timezone values can be found here: https://www.php.net/manual/en/timezones.php
APP_TIMEZONE=UTC
# Application theme
# Used to specific a themes/<APP_THEME> folder where BookStack UI
# overrides can be made. Defaults to disabled.
APP_THEME=false
# Trusted proxies
# Used to indicate trust of systems that proxy to the application so
# certain header values (Such as "X-Forwarded-For") can be used from the
# incoming proxy request to provide origin detail.
# Set to an IP address, or multiple comma seperated IP addresses.
# Can alternatively be set to "*" to trust all proxy addresses.
APP_PROXIES=null
# Database details
# Host can contain a port (localhost:3306) or a separate DB_PORT option can be used.
DB_HOST=localhost
DB_PORT=3306
DB_DATABASE=database_database
DB_USERNAME=database_username
DB_PASSWORD=database_user_password
# MySQL specific connection options
# Path to Certificate Authority (CA) certificate file for your MySQL instance.
# When this option is used host name identity verification will be performed
# which checks the hostname, used by the client, against names within the
# certificate itself (Common Name or Subject Alternative Name).
MYSQL_ATTR_SSL_CA="/path/to/ca.pem"
# Mail configuration
# Refer to https://www.bookstackapp.com/docs/admin/email-webhooks/#email-configuration
MAIL_DRIVER=smtp
MAIL_FROM=bookstack@example.com
MAIL_FROM_NAME=BookStack
MAIL_HOST=localhost
MAIL_PORT=587
MAIL_USERNAME=null
MAIL_PASSWORD=null
MAIL_ENCRYPTION=null
MAIL_VERIFY_SSL=true
MAIL_SENDMAIL_COMMAND="/usr/sbin/sendmail -bs"
# Cache & Session driver to use
# Can be 'file', 'database', 'memcached' or 'redis'
CACHE_DRIVER=file
SESSION_DRIVER=file
# Session configuration
SESSION_LIFETIME=120
SESSION_COOKIE_NAME=bookstack_session
SESSION_SECURE_COOKIE=false
# Cache key prefix
# Can be used to prevent conflicts multiple BookStack instances use the same store.
CACHE_PREFIX=bookstack
# Memcached server configuration
# If using a UNIX socket path for the host, set the port to 0
# This follows the following format: HOST:PORT:WEIGHT
# For multiple servers separate with a comma
MEMCACHED_SERVERS=127.0.0.1:11211:100
# Redis server configuration
# This follows the following format: HOST:PORT:DATABASE
# or, if using a password: HOST:PORT:DATABASE:PASSWORD
# For multiple servers separate with a comma. These will be clustered.
REDIS_SERVERS=127.0.0.1:6379:0
# Queue driver to use
# Can be 'sync', 'database' or 'redis'
QUEUE_CONNECTION=sync
# Storage system to use
# Can be 'local', 'local_secure' or 's3'
STORAGE_TYPE=local
# Image storage system to use
# Defaults to the value of STORAGE_TYPE if unset.
# Accepts the same values as STORAGE_TYPE.
STORAGE_IMAGE_TYPE=local
# Attachment storage system to use
# Defaults to the value of STORAGE_TYPE if unset.
# Accepts the same values as STORAGE_TYPE although 'local' will be forced to 'local_secure'.
STORAGE_ATTACHMENT_TYPE=local_secure
# Amazon S3 storage configuration
STORAGE_S3_KEY=your-s3-key
STORAGE_S3_SECRET=your-s3-secret
STORAGE_S3_BUCKET=s3-bucket-name
STORAGE_S3_REGION=s3-bucket-region
# S3 endpoint to use for storage calls
# Only set this if using a non-Amazon s3-compatible service such as Minio
STORAGE_S3_ENDPOINT=https://my-custom-s3-compatible.service.com:8001
# Storage URL prefix
# Used as a base for any generated image urls.
# An s3-format URL will be generated if not set.
STORAGE_URL=false
# Authentication method to use
# Can be 'standard', 'ldap', 'saml2' or 'oidc'
AUTH_METHOD=standard
# Automatically initiate login via external auth system if it's the only auth method.
# Works with saml2 or oidc auth methods.
AUTH_AUTO_INITIATE=false
# Social authentication configuration
# All disabled by default.
# Refer to https://www.bookstackapp.com/docs/admin/third-party-auth/
AZURE_APP_ID=false
AZURE_APP_SECRET=false
AZURE_TENANT=false
AZURE_AUTO_REGISTER=false
AZURE_AUTO_CONFIRM_EMAIL=false
DISCORD_APP_ID=false
DISCORD_APP_SECRET=false
DISCORD_AUTO_REGISTER=false
DISCORD_AUTO_CONFIRM_EMAIL=false
FACEBOOK_APP_ID=false
FACEBOOK_APP_SECRET=false
FACEBOOK_AUTO_REGISTER=false
FACEBOOK_AUTO_CONFIRM_EMAIL=false
GITHUB_APP_ID=false
GITHUB_APP_SECRET=false
GITHUB_AUTO_REGISTER=false
GITHUB_AUTO_CONFIRM_EMAIL=false
GITLAB_APP_ID=false
GITLAB_APP_SECRET=false
GITLAB_BASE_URI=false
GITLAB_AUTO_REGISTER=false
GITLAB_AUTO_CONFIRM_EMAIL=false
GOOGLE_APP_ID=false
GOOGLE_APP_SECRET=false
GOOGLE_SELECT_ACCOUNT=false
GOOGLE_AUTO_REGISTER=false
GOOGLE_AUTO_CONFIRM_EMAIL=false
OKTA_BASE_URL=false
OKTA_APP_ID=false
OKTA_APP_SECRET=false
OKTA_AUTO_REGISTER=false
OKTA_AUTO_CONFIRM_EMAIL=false
SLACK_APP_ID=false
SLACK_APP_SECRET=false
SLACK_AUTO_REGISTER=false
SLACK_AUTO_CONFIRM_EMAIL=false
TWITCH_APP_ID=false
TWITCH_APP_SECRET=false
TWITCH_AUTO_REGISTER=false
TWITCH_AUTO_CONFIRM_EMAIL=false
TWITTER_APP_ID=false
TWITTER_APP_SECRET=false
TWITTER_AUTO_REGISTER=false
TWITTER_AUTO_CONFIRM_EMAIL=false
# LDAP authentication configuration
# Refer to https://www.bookstackapp.com/docs/admin/ldap-auth/
LDAP_SERVER=false
LDAP_BASE_DN=false
LDAP_DN=false
LDAP_PASS=false
LDAP_USER_FILTER=false
LDAP_VERSION=false
LDAP_START_TLS=false
LDAP_TLS_INSECURE=false
LDAP_ID_ATTRIBUTE=uid
LDAP_EMAIL_ATTRIBUTE=mail
LDAP_DISPLAY_NAME_ATTRIBUTE=cn
LDAP_THUMBNAIL_ATTRIBUTE=null
LDAP_FOLLOW_REFERRALS=true
LDAP_DUMP_USER_DETAILS=false
# LDAP group sync configuration
# Refer to https://www.bookstackapp.com/docs/admin/ldap-auth/
LDAP_USER_TO_GROUPS=false
LDAP_GROUP_ATTRIBUTE="memberOf"
LDAP_REMOVE_FROM_GROUPS=false
LDAP_DUMP_USER_GROUPS=false
# SAML authentication configuration
# Refer to https://www.bookstackapp.com/docs/admin/saml2-auth/
SAML2_NAME=SSO
SAML2_EMAIL_ATTRIBUTE=email
SAML2_DISPLAY_NAME_ATTRIBUTES=username
SAML2_EXTERNAL_ID_ATTRIBUTE=null
SAML2_IDP_ENTITYID=null
SAML2_IDP_SSO=null
SAML2_IDP_SLO=null
SAML2_IDP_x509=null
SAML2_ONELOGIN_OVERRIDES=null
SAML2_DUMP_USER_DETAILS=false
SAML2_AUTOLOAD_METADATA=false
SAML2_IDP_AUTHNCONTEXT=true
SAML2_SP_x509=null
SAML2_SP_x509_KEY=null
# SAML group sync configuration
# Refer to https://www.bookstackapp.com/docs/admin/saml2-auth/
SAML2_USER_TO_GROUPS=false
SAML2_GROUP_ATTRIBUTE=group
SAML2_REMOVE_FROM_GROUPS=false
# OpenID Connect authentication configuration
# Refer to https://www.bookstackapp.com/docs/admin/oidc-auth/
OIDC_NAME=SSO
OIDC_DISPLAY_NAME_CLAIMS=name
OIDC_CLIENT_ID=null
OIDC_CLIENT_SECRET=null
OIDC_ISSUER=null
OIDC_ISSUER_DISCOVER=false
OIDC_PUBLIC_KEY=null
OIDC_AUTH_ENDPOINT=null
OIDC_TOKEN_ENDPOINT=null
OIDC_USERINFO_ENDPOINT=null
OIDC_ADDITIONAL_SCOPES=null
OIDC_DUMP_USER_DETAILS=false
OIDC_USER_TO_GROUPS=false
OIDC_GROUPS_CLAIM=groups
OIDC_REMOVE_FROM_GROUPS=false
OIDC_EXTERNAL_ID_CLAIM=sub
OIDC_END_SESSION_ENDPOINT=false
# Disable default third-party services such as Gravatar and Draw.IO
# Service-specific options will override this option
DISABLE_EXTERNAL_SERVICES=false
# Use custom avatar service, Sets fetch URL
# Possible placeholders: ${hash} ${size} ${email}
# If set, Avatars will be fetched regardless of DISABLE_EXTERNAL_SERVICES option.
# Example: AVATAR_URL=https://seccdn.libravatar.org/avatar/${hash}?s=${size}&d=identicon
AVATAR_URL=
# Enable diagrams.net integration
# Can simply be true/false to enable/disable the integration.
# Alternatively, It can be URL to the diagrams.net instance you want to use.
# For URLs, The following URL parameters should be included: embed=1&proto=json&spin=1&configure=1
DRAWIO=true
# Default item listing view
# Used for public visitors and user's without a preference.
# Can be 'list' or 'grid'.
APP_VIEWS_BOOKS=list
APP_VIEWS_BOOKSHELVES=grid
APP_VIEWS_BOOKSHELF=grid
# Use dark mode by default
# Will be overriden by any user/session preference.
APP_DEFAULT_DARK_MODE=false
# Page revision limit
# Number of page revisions to keep in the system before deleting old revisions.
# If set to 'false' a limit will not be enforced.
REVISION_LIMIT=100
# Recycle Bin Lifetime
# The number of days that content will remain in the recycle bin before
# being considered for auto-removal. It is not a guarantee that content will
# be removed after this time.
# Set to 0 for no recycle bin functionality.
# Set to -1 for unlimited recycle bin lifetime.
RECYCLE_BIN_LIFETIME=30
# File Upload Limit
# Maximum file size, in megabytes, that can be uploaded to the system.
FILE_UPLOAD_SIZE_LIMIT=50
# Export Page Size
# Primarily used to determine page size of PDF exports.
# Can be 'a4' or 'letter'.
EXPORT_PAGE_SIZE=a4
# Set path to wkhtmltopdf binary for PDF generation.
# Can be 'false' or a path path like: '/home/bins/wkhtmltopdf'
# When false, BookStack will attempt to find a wkhtmltopdf in the application
# root folder then fall back to the default dompdf renderer if no binary exists.
# Only used if 'ALLOW_UNTRUSTED_SERVER_FETCHING=true' which disables security protections.
WKHTMLTOPDF=false
# Allow <script> tags in page content
# Note, if set to 'true' the page editor may still escape scripts.
ALLOW_CONTENT_SCRIPTS=false
# Indicate if robots/crawlers should crawl your instance.
# Can be 'true', 'false' or 'null'.
# The behaviour of the default 'null' option will depend on the 'app-public' admin setting.
# Contents of the robots.txt file can be overridden, making this option obsolete.
ALLOW_ROBOTS=null
# Allow server-side fetches to be performed to potentially unknown
# and user-provided locations. Primarily used in exports when loading
# in externally referenced assets.
# Can be 'true' or 'false'.
ALLOW_UNTRUSTED_SERVER_FETCHING=false
# A list of hosts that BookStack can be iframed within.
# Space separated if multiple. BookStack host domain is auto-inferred.
# For Example: ALLOWED_IFRAME_HOSTS="https://example.com https://a.example.com"
# Setting this option will also auto-adjust cookies to be SameSite=None.
ALLOWED_IFRAME_HOSTS=null
# A list of sources/hostnames that can be loaded within iframes within BookStack.
# Space separated if multiple. BookStack host domain is auto-inferred.
# Can be set to a lone "*" to allow all sources for iframe content (Not advised).
# Defaults to a set of common services.
# Current host and source for the "DRAWIO" setting will be auto-appended to the sources configured.
ALLOWED_IFRAME_SOURCES="https://*.draw.io https://*.youtube.com https://*.youtube-nocookie.com https://*.vimeo.com"
# A list of the sources/hostnames that can be reached by application SSR calls.
# This is used wherever users can provide URLs/hosts in-platform, like for webhooks.
# Host-specific functionality (usually controlled via other options) like auth
# or user avatars for example, won't use this list.
# Space seperated if multiple. Can use '*' as a wildcard.
# Values will be compared prefix-matched, case-insensitive, against called SSR urls.
# Defaults to allow all hosts.
ALLOWED_SSR_HOSTS="*"
# The default and maximum item-counts for listing API requests.
API_DEFAULT_ITEM_COUNT=100
API_MAX_ITEM_COUNT=500
# The number of API requests that can be made per minute by a single user.
API_REQUESTS_PER_MIN=180
# Enable the logging of failed email+password logins with the given message.
# The default log channel below uses the php 'error_log' function which commonly
# results in messages being output to the webserver error logs.
# The message can contain a %u parameter which will be replaced with the login
# user identifier (Username or email).
LOG_FAILED_LOGIN_MESSAGE=false
LOG_FAILED_LOGIN_CHANNEL=errorlog_plain_webserver
# Alter the precision of IP addresses stored by BookStack.
# Should be a number between 0 and 4, where 4 retains the full IP address
# and 0 completely hides the IP address. As an example, a value of 2 for the
# IP address '146.191.42.4' would result in '146.191.x.x' being logged.
# For the IPv6 address '2001:db8:85a3:8d3:1319:8a2e:370:7348' this would result as:
# '2001:db8:85a3:8d3:x:x:x:x'
IP_ADDRESS_PRECISION=4
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