This moves all the listen socket code into a nice and abstracting file.
Notes:
* Altering listen socket setup does not yet work on config reload.
(Did it ever work?)
* Server will start with no listen sockets. (There are unconfirmed
rumours it sometimes(?) did before.) This is to be re-implemented
in another commit. It can also be improved to work allow checking
on reload or other config changes.
* For slave connections the server address is now checked against
the allow/deny-IP list.
This allows the usage of RFC 2817 style upgrade commands.
This is not correctly announced yet.
Can hardly be tested as most clients do not support this.
Will be helpful with TLS support in libshout.
See: #2159, #2152
This patch *replaces* the authentication system completly.
What is new:
- <authentication> in mount section is now a container object.
- <authentication> in root and mount section may hold any number of <role>-Tags.
- <role> tags:
Those tags define a 'role' and it's ACL rules.
A role is a instance of an authentication module (see below).
<role> takes the following options. All but type are optional.
- authentication related:
- type: Type of the authentication module (values: anonymous, static, legacy-password, url or htpasswd;
symbolic constants in auth.h)
- name: Name for the role. For later matching. (values: any string; default: (none))
- method: This rule is only active on the given list of HTTP methods.
(list of enum values: methods as recognized by httpp/ (e.g: get,post); default: *)
- ACL related:
- allow-method: Allowed HTTP methods.
(list of enum values: methods as recognized by httpp/ (e.g: get,post); default: get)
- deny-method: Rejected HTTP methods.
(list of enum values: methods as recognized by httpp/ (e.g: get,post); default: *)
- allow-admin: Allowed admin commands. (list of enum values: admin command; default: buildm3u)
- deny-admin: Rejected admin commands. (list of enum values: admin command; default: *)
- allow-web: Allowed web pages. (values: empty or *; default: *)
- deny-web: Rejected web pages. (values: empty or *; default: (empty))
- connections-per-user: maximum number of simultaneous connections per role and username.
This is only active on active sources. (values: unlimited or number of connections; default: unlimited)
- connection-duration: maximum time of a connection. This is only active on active sources.
(values: unlimited or number of secounds; default: unlimited)
<role> takes <option> child tags. <option> tags contain a name and a value option.
Meaning of <option> tags is up to the authentication module.
- <role>s are considered to build a stack. If a role returns with AUTH_NOMATCH the next one will be tried.
- <role>s are tested in this order: mount specific, default mount specific, global, internal fallback.
Internal fallback is set to allow web/ access via GET, POST and HEAD (only GET supported by this time)
and rejects all other requests.
- New authentication module: anonymous
This module matches all requests. No options taken.
- New authentication module: static
This module matches with a static username and password.
It takes two <option>s. One with name="username" and one with name="password" to set username and password.
This replaces old style <*-username> and <*-password> tags.
- New authentication module: legacy-password
This module matches with a statich password.
It takes one <option> with name="password" to set password.
This replaces old ICE and ICY (shoutcast compat mode) authentication.
- Parsing <authentication> in <mount> with a type set in a special way to allow 100% backward compatibility.
- Parsing of <source-password>, <admin-password>, <admin-user>, <relay-password> and <relay-user> in global
<authentication> for 100% backward compatibility.
- <alias> is now proccessed very early. This enables them to be used for all kinds of requests.
To Do List & What does not yet work:
- type="url" auth: mount_add and mount_remove.
This should be replaced by an unique feature I would call '<event>'.
- Admin commands manageauth and manageauth.xsl are disabled as they need more review:
This code needs to be ported to support multiple <role>s per <mount>.
- url authentication module can not yet return AUTH_NOMATCH.
This needs to be reviewed and discussed on how to handle this case best way.
- Default config files needs to be updated to reflect the changes.
As this is quite some political act it should be done in dicussion with the whole team
and permission of the release manager.
- Docs need to be updated to reflect the changes.
How does it work:
Code has been changed so that authentification is done early for all clients.
This allows accessing the ACL data (client->acl) from nearly everywhere in the code.
After accept() and initial client setup the request is parsed. In the next step
all <alias>es are resolved. After this the client is passed for authentication.
After authentication it is passed to the corresponding subsystem depending on kind of request.
All authentication instances have a thread running for doing the authentication.
This thread works on a queue of clients.
Hints for testers:
- Test with default config.
- Test with diffrent authentication modules in <mount>.
- Test shoutcast compatibility mode.
- Test with new style <authentication> and any amount of <role> (zero to quite some).
- Test <alias> lookup on all kinds of objects.
- Test source level credential login into the admin interface.
- Test shoucast style meta data updates.
- Test playlist generation.
Thank you for reading this long commit message. Have fun reading the full patch!
svn path=/icecast/trunk/icecast/; revision=19358
issue requests (using ithe stream_auth option) to allow external engines to
determine whether a client can stream or not. Admin requests using source auth
are able to use this mechanism however source clients using the icy protocol
cannot yet.
svn path=/icecast/trunk/icecast/; revision=15621
I've taken out the client_create out of the connection_complete_source and put
it in slave, that way we can control the cleanup of the memory/socket better, the
change also meant fallback to file tests were slghtly different.
svn path=/icecast/trunk/icecast/; revision=9847
on incoming connections. Now we get the accept thread to create a client_t
and mark it as a shoutcast client if need be. Then use a single connection
thread to poll the non-blocking sockets for the headers. When complete they
get handled as usual.
svn path=/icecast/trunk/icecast/; revision=9733
various places including the shoutcast source client auth which previously
only used the global source password.
svn path=/icecast/trunk/icecast/; revision=9240
rename util_url_escape to util_url_unescape, and write a util_escape function
that actually DOES escape things. Fix all the callers of the function to call
the correct one of these two.
svn path=/trunk/icecast/; revision=4414
Lots of new locking happening so that it's safe to have the config file
disappear under the rest of the program
Does NOT affect currently-running sources at the moment
svn path=/trunk/icecast/; revision=4406
on Linux for uint64_t, but Solaris defines this in sys/types.h. Use check
where appropriate, and also add typedefs for Win32.
svn path=/trunk/icecast/; revision=2206
