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TiddlyWiki5/editions/tw5.com/tiddlers/webserver/WebServer Authorization.tid

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Module-ize server routes, add static file support and other enhancements(#2679) * Module-ize server routes and add static file support (#2510) * Refactor server routes to modules New module type: serverroute Caveats: Loading order is not deterministic but this would only matter if two route modules attempted to use the same path regexp (that would be silly). * Add static assets plugin This plugin allows the node server to fetch static assets in the /assets directory. I felt that this was a feature that goes above the core functionality. That is why I added it as a plugin. with the modular route extensions this was a breeze. * Add serverroute description to ModuleTypes * Coding standards tweaks * Fix filename typo * Move support for attachments from a plugin into the core * Missing "else" * Refactor server handling * Introduce a new named parameter scheme for commands * Move the SimpleServer class into it's own module * Deprecate the --server command because of the unwieldy syntax * Add a new --listen command using the new syntax For example: tiddlywiki mywiki --listen host:0.0.0.0 port:8090 * Add check for unknown parameters * Add support for multiple basic authentication credentials in a CSV file Beware: Passwords are stored in plain text. If that's a problem, use an authenticating proxy and the trusted header authentication approach. * Refactor module locations * Rename "serverroute" module type to "route" * Remove support for verifying optional named command parameters The idea was to be able to flag unknown parameter names, but requiring a command to pre-specify all the parameter names makes it harder for (say) the listen command to be extensible so that plugins can add new optional parameters that they handle. (This is particularly in the context of work in progress to encapsulate authenticators into their own modules). * Refactor the two authenticators into separate modules and add support for authorization * Correct mistaken path.join vs. path.resolve See https://stackoverflow.com/a/39836259 * Docs for the named command parameters I'd be grateful if anyone with sufficient Windows experience could confirm that the note about double quotes in "NamedCommandParameters" is correct. * Be consistent about lower case parameter names * Do the right thing when we have a username but no password With a username parameter but no password parameter we'll attribute edits to that username, but not require authentication. * Remove obsolete code * Add support for requiring authentication without restricting the username * Refactor authorization checks * Return read_only status in /status response * Fix two code typos * Add basic support for detecting readonly status and avoiding write errors We now have syncadaptors returning readonly status and avoid attempting to write to the server if it's going to fail * Add readonly-styles We hide editing-related buttons in read only mode I've made this part of the tiddlyweb plugin but I think a case could be made for putting it into the core. * Add custom request header as CSRF mitigation By default we require the header X-Requested-With to be set to TiddlyWiki. Can be overriden by setting csrfdisable to "yes" See https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)_Prevention_Cheat_Sheet#Protecting_REST_Services:_Use_of_Custom_Request_Headers * Add support for HTTPS * First pass at a route for serving rendered tiddlers cc @Drakor * Tweaks to the single tiddler static view Adding a simple sidebar * Switch to "dash" separated parameter names * Typo * Docs: Update ServerCommand and ListenCommand * First pass at docs for the new web server stuff Writing the docs is turning out to be quite an undertaking, much harder than writing the code! * Get rid of extraneous paragraphs in static renderings * Rejig anonymous user handling Now we can support wikis that are read-only for anonymous access, but allow a user to login for read/write access. * More docs Slowly getting there... * Static tiddler rendering: Fix HTML content in page title * Docs updates * Fix server command parameter names Missed off 30ce7ea * Docs: Missing quotes * Avoid inadvertent dependency on Node.js > v9.6.0 The listenOptions parameter of the plain HTTP version of CreateServer was only introduced in v9.6.0 cc @Drakor @pmario * Typo
2018-07-18 15:54:43 +00:00
created: 20180630194006239
Docs: webserver and read-only mode
2018-09-05 07:38:47 +00:00
modified: 20180904174030250
Module-ize server routes, add static file support and other enhancements(#2679) * Module-ize server routes and add static file support (#2510) * Refactor server routes to modules New module type: serverroute Caveats: Loading order is not deterministic but this would only matter if two route modules attempted to use the same path regexp (that would be silly). * Add static assets plugin This plugin allows the node server to fetch static assets in the /assets directory. I felt that this was a feature that goes above the core functionality. That is why I added it as a plugin. with the modular route extensions this was a breeze. * Add serverroute description to ModuleTypes * Coding standards tweaks * Fix filename typo * Move support for attachments from a plugin into the core * Missing "else" * Refactor server handling * Introduce a new named parameter scheme for commands * Move the SimpleServer class into it's own module * Deprecate the --server command because of the unwieldy syntax * Add a new --listen command using the new syntax For example: tiddlywiki mywiki --listen host:0.0.0.0 port:8090 * Add check for unknown parameters * Add support for multiple basic authentication credentials in a CSV file Beware: Passwords are stored in plain text. If that's a problem, use an authenticating proxy and the trusted header authentication approach. * Refactor module locations * Rename "serverroute" module type to "route" * Remove support for verifying optional named command parameters The idea was to be able to flag unknown parameter names, but requiring a command to pre-specify all the parameter names makes it harder for (say) the listen command to be extensible so that plugins can add new optional parameters that they handle. (This is particularly in the context of work in progress to encapsulate authenticators into their own modules). * Refactor the two authenticators into separate modules and add support for authorization * Correct mistaken path.join vs. path.resolve See https://stackoverflow.com/a/39836259 * Docs for the named command parameters I'd be grateful if anyone with sufficient Windows experience could confirm that the note about double quotes in "NamedCommandParameters" is correct. * Be consistent about lower case parameter names * Do the right thing when we have a username but no password With a username parameter but no password parameter we'll attribute edits to that username, but not require authentication. * Remove obsolete code * Add support for requiring authentication without restricting the username * Refactor authorization checks * Return read_only status in /status response * Fix two code typos * Add basic support for detecting readonly status and avoiding write errors We now have syncadaptors returning readonly status and avoid attempting to write to the server if it's going to fail * Add readonly-styles We hide editing-related buttons in read only mode I've made this part of the tiddlyweb plugin but I think a case could be made for putting it into the core. * Add custom request header as CSRF mitigation By default we require the header X-Requested-With to be set to TiddlyWiki. Can be overriden by setting csrfdisable to "yes" See https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)_Prevention_Cheat_Sheet#Protecting_REST_Services:_Use_of_Custom_Request_Headers * Add support for HTTPS * First pass at a route for serving rendered tiddlers cc @Drakor * Tweaks to the single tiddler static view Adding a simple sidebar * Switch to "dash" separated parameter names * Typo * Docs: Update ServerCommand and ListenCommand * First pass at docs for the new web server stuff Writing the docs is turning out to be quite an undertaking, much harder than writing the code! * Get rid of extraneous paragraphs in static renderings * Rejig anonymous user handling Now we can support wikis that are read-only for anonymous access, but allow a user to login for read/write access. * More docs Slowly getting there... * Static tiddler rendering: Fix HTML content in page title * Docs updates * Fix server command parameter names Missed off 30ce7ea * Docs: Missing quotes * Avoid inadvertent dependency on Node.js > v9.6.0 The listenOptions parameter of the plain HTTP version of CreateServer was only introduced in v9.6.0 cc @Drakor @pmario * Typo
2018-07-18 15:54:43 +00:00
tags: WebServer
title: WebServer Authorization
type: text/vnd.tiddlywiki
''Authorization'' is the process of determining which resources may be accessed by a particular user. It occurs after [[authentication|WebServer Authentication]] has determined the identity of the user. TiddlyWiki's WebServer implements a simple authorization scheme which permits independent control of who has read and write access to a wiki.
The WebServer parameters [[readers|WebServer Parameter: readers]] and [[writers|WebServer Parameter: writers]] each contain a comma separated list of //principals// (which is to say, either usernames or certain special tokens) which should have read or write access respectively.
The available special tokens are:
* ''(anon)'' - indicates all anonymous users
* ''(authenticated)'' - indicates all authenticated users
Docs: webserver and read-only mode
2018-09-05 07:38:47 +00:00
!! Read-only Mode
Read-only mode is engaged when the current user is not authorized to write to the current wiki.
User interface features concerned with creating or editing content are disabled in read-only mode:
* ''clone'', ''delete'', ''new-here'' and ''new-journal-here'' tiddler toolbar buttons
* ''import'', ''manager'', ''new-tiddler'' ''new-image'' and ''new-journal'' page control buttons
The tiddler $:/status/IsReadOnly is set to `yes` when read-only mode is engaged.
Module-ize server routes, add static file support and other enhancements(#2679) * Module-ize server routes and add static file support (#2510) * Refactor server routes to modules New module type: serverroute Caveats: Loading order is not deterministic but this would only matter if two route modules attempted to use the same path regexp (that would be silly). * Add static assets plugin This plugin allows the node server to fetch static assets in the /assets directory. I felt that this was a feature that goes above the core functionality. That is why I added it as a plugin. with the modular route extensions this was a breeze. * Add serverroute description to ModuleTypes * Coding standards tweaks * Fix filename typo * Move support for attachments from a plugin into the core * Missing "else" * Refactor server handling * Introduce a new named parameter scheme for commands * Move the SimpleServer class into it's own module * Deprecate the --server command because of the unwieldy syntax * Add a new --listen command using the new syntax For example: tiddlywiki mywiki --listen host:0.0.0.0 port:8090 * Add check for unknown parameters * Add support for multiple basic authentication credentials in a CSV file Beware: Passwords are stored in plain text. If that's a problem, use an authenticating proxy and the trusted header authentication approach. * Refactor module locations * Rename "serverroute" module type to "route" * Remove support for verifying optional named command parameters The idea was to be able to flag unknown parameter names, but requiring a command to pre-specify all the parameter names makes it harder for (say) the listen command to be extensible so that plugins can add new optional parameters that they handle. (This is particularly in the context of work in progress to encapsulate authenticators into their own modules). * Refactor the two authenticators into separate modules and add support for authorization * Correct mistaken path.join vs. path.resolve See https://stackoverflow.com/a/39836259 * Docs for the named command parameters I'd be grateful if anyone with sufficient Windows experience could confirm that the note about double quotes in "NamedCommandParameters" is correct. * Be consistent about lower case parameter names * Do the right thing when we have a username but no password With a username parameter but no password parameter we'll attribute edits to that username, but not require authentication. * Remove obsolete code * Add support for requiring authentication without restricting the username * Refactor authorization checks * Return read_only status in /status response * Fix two code typos * Add basic support for detecting readonly status and avoiding write errors We now have syncadaptors returning readonly status and avoid attempting to write to the server if it's going to fail * Add readonly-styles We hide editing-related buttons in read only mode I've made this part of the tiddlyweb plugin but I think a case could be made for putting it into the core. * Add custom request header as CSRF mitigation By default we require the header X-Requested-With to be set to TiddlyWiki. Can be overriden by setting csrfdisable to "yes" See https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)_Prevention_Cheat_Sheet#Protecting_REST_Services:_Use_of_Custom_Request_Headers * Add support for HTTPS * First pass at a route for serving rendered tiddlers cc @Drakor * Tweaks to the single tiddler static view Adding a simple sidebar * Switch to "dash" separated parameter names * Typo * Docs: Update ServerCommand and ListenCommand * First pass at docs for the new web server stuff Writing the docs is turning out to be quite an undertaking, much harder than writing the code! * Get rid of extraneous paragraphs in static renderings * Rejig anonymous user handling Now we can support wikis that are read-only for anonymous access, but allow a user to login for read/write access. * More docs Slowly getting there... * Static tiddler rendering: Fix HTML content in page title * Docs updates * Fix server command parameter names Missed off 30ce7ea * Docs: Missing quotes * Avoid inadvertent dependency on Node.js > v9.6.0 The listenOptions parameter of the plain HTTP version of CreateServer was only introduced in v9.6.0 cc @Drakor @pmario * Typo
2018-07-18 15:54:43 +00:00
!! Examples
These example use the [[credentials|WebServer Parameter: credentials]] parameter to specify the location of a file containing usernames and passwords.
In the first example, read access is permitted for the users "joe" and "mary", with write access restricted to "mary":
```
tiddlywiki mywikifolder --listen credentials=myusers.csv readers=joe,mary writers=mary
```
In the following example, read access is granted to all authenticated users, but only "mary" is granted write access:
```
tiddlywiki mywikifolder --listen credentials=myusers.csv "readers=(authenticated)" writers=mary
```
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