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35 Commits

Author SHA1 Message Date
Conrad Hoffmann
40bae8dc31 Switch to a proper logging library 
Structured logs can be enabled with `-log.json`.
 2022-12-01 13:46:25 +01:00
Conrad Hoffmann
03fce79e57 storage: break filesystem.go into multiple files 2022-12-01 11:06:15 +01:00
Conrad Hoffmann
68de660456 Switch to latest upstream go-webdav 
* Use one, fixed path layout
* New type `ConditionalMatch` for contents of `If-Match`/`If-None-Match`
  header
 2022-11-22 16:05:00 +01:00
Conrad Hoffmann
7f0f9fd365 Implement If-Match handling 2022-10-31 12:24:32 +01:00
Conrad Hoffmann
058c063819 Fix errors introduced in previous commit :/ 2022-10-28 19:41:44 +02:00
Conrad Hoffmann
b99f38a1b7 Fix assignment to shadowed variable 
This fixes the request that creates the address book returning an error
even though it was successfully created and read.
 2022-10-28 12:37:41 +02:00
Conrad Hoffmann
196503553a storage/filesystem: implement DeleteCalendarObject 2022-10-28 12:20:22 +02:00
Simon Ser
228384530e storage/filesystem: atomically check for IfNoneMatch 
Using a separate os.Stat() call may result in a race where another
request handler running concurrently creates the file in-between
the os.Stat() call and the os.Create() call.

Use O_EXCL to avoid this situation.
 2022-06-03 10:15:23 +02:00
Conrad Hoffmann
486a5285db Add filtering of CalDAV query results 
Currently, `QueryCalendarObjects()` simply returns all objects. Now that
`caldav.Filter()` is available upstream, use it to actually filter out
events that do not match the query.
 2022-06-03 09:45:27 +02:00
Conrad Hoffmann
04a422523a Handle If-None-Match in PUT requests 
As objects always get written to the path that is their UID, we don't
have to worry about UID conflicts. Unless, the client creates a new
contact, in which case this header should be set.
 2022-06-01 11:55:03 +02:00
Simon Ser
5edd0f5a0e storage/filesystem: simplify UserPrincipalBackend 
Use composition to expose UserPrincipalBackend in filesystemBackend.
That way, no need to re-define the CurrentUserPrincipal method.
 2022-05-24 13:50:54 +02:00
Conrad Hoffmann
a734b3b532 Set content length propery for DAV objects 
This makes collections play nice with clients that require it, like
cadaver.
 2022-05-17 15:28:09 +02:00
Conrad Hoffmann
5a6306bd83 Properly mark TODO comment 2022-05-17 15:24:43 +02:00
Conrad Hoffmann
4765adc1a3 Use NewHTTPError to return better errors 
That function is merged upstream, but the current version still depends
on some stuff not yet merged into upstream go-webdav.
 2022-05-06 09:16:17 +02:00
Conrad Hoffmann
001917295d Add CalDAV support, refactor 
The filesystem storage backend now implements the required functions to
act as a basic CalDAV server. Some refactoring was done based on the
go-webdav development: introduce a UserPrincipalBackend, a new function
to serve the user principal URL, and more. See this PR for lots of
details: https://github.com/emersion/go-webdav/pull/62

Also adds a simple facility for debug output.
 2022-05-03 16:06:47 +02:00
Conrad Hoffmann
5728f1ee27 Make sure clients cannot overwrite address book 
Tighten the regex for valid resources and change the name of the default
address book file so that it is not covered by that regex. This will
prohibit clients from accidentally or maliciously PUTing to that file.
 2022-03-16 15:15:01 +01:00
Conrad Hoffmann
f4a3598191 Use simpler os.Create for writing files 2022-03-16 15:11:06 +01:00
Conrad Hoffmann
29bf819ab1 Avoid empty array allocations 2022-03-16 15:08:42 +01:00
Conrad Hoffmann
e5db18e289 Remove stat call from happy path 
Just try to read the file, use it if it works. Only if the file does
not exist, create default address book and try again.
 2022-03-16 15:02:18 +01:00
Conrad Hoffmann
86359a5e11 Avoid using pointers for card.Card 
It's just a map, Go will do the right thing.
 2022-03-16 14:51:26 +01:00
Conrad Hoffmann
e069bc0e9b Use SHA1 streaming hash for Etag 2022-03-16 14:47:47 +01:00
Conrad Hoffmann
b3277148d7 Compile regex globally 2022-03-16 14:47:11 +01:00
Conrad Hoffmann
78bd2a9b84 Keep context keys private 
Instead, offer type safe accessors, as documented here:

https://pkg.go.dev/context#Context
 2022-03-16 14:33:47 +01:00
Conrad Hoffmann
07c19a6f6c Use base64 encoded user name as their base dir 
This is safe in all circumstance and leaves it up to the auth backend to
use whatever name they like for authentication.
 2022-03-10 17:56:58 +01:00
Conrad Hoffmann
04be038c05 Implement UID conflict check in PutAddressObject 2022-03-10 17:56:58 +01:00
Conrad Hoffmann
1d50d6dad8 Harden mapping from request path to FS path 
Put strict checks in place to avoid authenticated users accessing files
outside of their actual storage directory. These checks will need
updating if multiple address books are to be supported.
 2022-03-10 16:46:56 +01:00
Conrad Hoffmann
18a9f9bf77 Implement query and property filters 
The property filters are also used for other operations.
 2022-03-01 11:51:34 +01:00
Conrad Hoffmann
8c8d96c2bc Fix conflation of URL and storage path 
The path returned must of course be the external URL path, not the
internal storage path.
 2022-02-28 19:48:49 +01:00
Conrad Hoffmann
8b46585109 storage/filesystem: implement more operations 
Everything except QueryAddressObjects is now functional, though not
feature-complete. Simple operations work, e.g. via Evolution.
 2022-02-24 12:54:30 +01:00
Conrad Hoffmann
edd01ff7a3 Make storage backend configurable via -storage.url 
Same mechanism as for configuring the auth backend.
 2022-02-23 21:09:20 +01:00
Conrad Hoffmann
d917938a29 Start simple filesystem storage backend 2022-02-23 21:09:20 +01:00
Conrad Hoffmann
3281b1d32b Switch to new interfaces with context 
See https://github.com/emersion/go-webdav/pull/53
 2022-02-23 13:44:05 +01:00
Conrad Hoffmann
2b6220c1ea Add stub for filesystem storage backend 
References: https://todo.sr.ht/~sircmpwn/tokidoki/2
 2022-02-22 12:18:07 +01:00
Simon Ser
97f86226d6 Rig up CardDAV backend to HTTP server 
References: https://todo.sr.ht/~sircmpwn/tokidoki/3
 2022-02-21 11:39:57 +01:00
Drew DeVault
c804095480 Initial commit 2022-02-21 09:52:55 +01:00