Backport #26745
Fixes #26548
This PR refactors the rendering of markup links. The old code uses
`strings.Replace` to change some urls while the new code uses more
context to decide which link should be generated.
The added tests should ensure the same output for the old and new
behaviour (besides the bug).
We may need to refactor the rendering a bit more to make it clear how
the different helper methods render the input string. There are lots of
options (resolve links / images / mentions / git hashes / emojis / ...)
but you don't really know what helper uses which options. For example,
we currently support images in the user description which should not be
allowed I think:
<details>
<summary>Profile</summary>
https://try.gitea.io/KN4CK3R
</details>
(cherry picked from commit 022552d5b6)
- Currently the post processing will transform all issue indexes (such as `#6`) into a clickable link.
- This makes sense in an situation like issues or PRs,
where referencing to other issues is quite common
and only referencing their issue index is an handy and efficient way to do it.
- Currently this is also run for documents
(which is the user profile and viewing rendered files),
but in those situations it's less common to reference issues by their index and instead could mean something else.
- This patch disables this post processing for issue index for documents. Matches Github's behavior.
- Added unit tests.
- Resolves https://codeberg.org/Codeberg/Community/issues/1120
Co-authored-by: Gusted <postmaster@gusted.xyz>
# The problem
There were many "path tricks":
* By default, Gitea uses its program directory as its work path
* Gitea tries to use the "work path" to guess its "custom path" and
"custom conf (app.ini)"
* Users might want to use other directories as work path
* The non-default work path should be passed to Gitea by GITEA_WORK_DIR
or "--work-path"
* But some Gitea processes are started without these values
* The "serv" process started by OpenSSH server
* The CLI sub-commands started by site admin
* The paths are guessed by SetCustomPathAndConf again and again
* The default values of "work path / custom path / custom conf" can be
changed when compiling
# The solution
* Use `InitWorkPathAndCommonConfig` to handle these path tricks, and use
test code to cover its behaviors.
* When Gitea's web server runs, write the WORK_PATH to "app.ini", this
value must be the most correct one, because if this value is not right,
users would find that the web UI doesn't work and then they should be
able to fix it.
* Then all other sub-commands can use the WORK_PATH in app.ini to
initialize their paths.
* By the way, when Gitea starts for git protocol, it shouldn't output
any log, otherwise the git protocol gets broken and client blocks
forever.
The "work path" priority is: WORK_PATH in app.ini > cmd arg --work-path
> env var GITEA_WORK_DIR > builtin default
The "app.ini" searching order is: cmd arg --config > cmd arg "work path
/ custom path" > env var "work path / custom path" > builtin default
## ⚠️ BREAKING
If your instance's "work path / custom path / custom conf" doesn't meet
the requirements (eg: work path must be absolute), Gitea will report a
fatal error and exit. You need to set these values according to the
error log.
----
Close #24818
Close #24222
Close #21606
Close #21498
Close #25107
Close #24981
Maybe close #24503
Replace #23301
Replace #22754
And maybe more
This branch continues the work of #23092 and attempts to rid the
codebase of any `nil` contexts when using a `RenderContext`.
Anything that renders markdown or does post processing may call
`markup.sha1CurrentPatternProcessor()`, and this runs
`git.OpenRepository()`, which needs a context. It will panic if the
context is `nil`. This branch attempts to _always_ include a context
when creating a `RenderContext` to prevent future crashes.
Co-authored-by: Kyle D <kdumontnu@gmail.com>
Some bugs caused by less unit tests in fundamental packages. This PR
refactor `setting` package so that create a unit test will be easier
than before.
- All `LoadFromXXX` files has been splited as two functions, one is
`InitProviderFromXXX` and `LoadCommonSettings`. The first functions will
only include the code to create or new a ini file. The second function
will load common settings.
- It also renames all functions in setting from `newXXXService` to
`loadXXXSetting` or `loadXXXFrom` to make the function name less
confusing.
- Move `XORMLog` to `SQLLog` because it's a better name for that.
Maybe we should finally move these `loadXXXSetting` into the `XXXInit`
function? Any idea?
---------
Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: delvh <dev.lh@web.de>
Change all license headers to comply with REUSE specification.
Fix #16132
Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
There is a small bug in #20571 whereby `$a a$b b$` will not be correctly
detected as a math inline block of `a a$b b`. This PR fixes this.
Also reenable test cases as per #21340
Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
* clean git support for ver < 2.0
* fine tune tests for markup (which requires git module)
* remove unnecessary comments
* try to fix tests
* try test again
* use const for GitVersionRequired instead of var
* try to fix integration test
* Refactor CheckAttributeReader to make a *git.Repository version
* update document for commit signing with Gitea's internal gitconfig
* update document for commit signing with Gitea's internal gitconfig
Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
* Allow render HTML with css/js external links
* Fix bug because of filename escape chars
* Fix lint
* Update docs about new configuration item
* Fix bug of render HTML in sub directory
* Add CSP head for displaying iframe in rendering file
* Fix test
* Apply suggestions from code review
Co-authored-by: delvh <dev.lh@web.de>
* Some improvements
* some improvement
* revert change in SanitizerDisabled of external renderer
* Add sandbox for iframe and support allow-scripts and allow-same-origin
* refactor
* fix
* fix lint
* fine tune
* use single option RENDER_CONTENT_MODE, use sandbox=allow-scripts
* fine tune CSP
* Apply suggestions from code review
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
* Add tests for references with dashes
This commit adds tests for full URLs referencing repos names and user
names containing a dash.
* Extend regex to match URLs to repos/users with dashes
* Don't panic & allow shorter sha1
- Don't panic when the full regex isn't matched and allow the usage of a
shorter sha1 being used.
- Resolves #18471
* Update modules/markup/html.go
Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
This PR continues the work in #17125 by progressively ensuring that git
commands run within the request context.
This now means that the if there is a git repo already open in the context it will be used instead of reopening it.
Signed-off-by: Andrew Thornton <art27@cantab.net>
The fuzzer found an issue with the issue pattern processor where there is a spurious
path.Clean which does not need to be there. This PR also sets the default AppURL for
the fuzzer too.
Signed-off-by: Andrew Thornton <art27@cantab.net>
If a pre-post-processed file contains relative img tags these need to be updated
and joined correctly with the prefix. Finally, the node attributes need to be updated.
Fix #16308
Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: 6543 <6543@obermui.de>
There is an inefficiency in the design of our processors which means that Emoji
and other processors run in order n^2 time.
This PR forces the processors to process the entirety of text node before passing
back up. The fundamental inefficiency remains but it should be significantly
ameliorated.
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Upgrade to bluemonday 1.0.7
Fix #15349
Signed-off-by: Andrew Thornton <art27@cantab.net>
* resolve unit test
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
* Prevent panic on fuzzer provided string
The fuzzer has found that providing a <body> tag with an attribute to
PostProcess causes a panic. This PR removes any rendered html or body
tags from the output.
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Placate lint
* placate lint again
Signed-off-by: Andrew Thornton <art27@cantab.net>
* minor cleanup
Signed-off-by: Andrew Thornton <art27@cantab.net>
This PR updates golangci-lint to the latest version 1.31.0.
The upgrade introduced a new check for which I've fixed or disabled most cases.
Signed-off-by: kolaente <k@knt.li>
- Fix emoji not being replaced in issue title change text
- Make the image attributes consistent, add alt, remove align
Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
* Fix emoji detection certain cases
Previous tests weren't complicated enough so there were some situations where emojis were't detected properly. Find the earliest occurance in addition to checking for the longest combination.
Fixes #12312
* ok spell bot
Co-authored-by: Lauris BH <lauris@nix.lv>
* Disable all typographic replacements in markdown renderer
Previously we only disabled some of them. This disables all the default
replacements that goldmark's typographer extension offers, matching
GitHub's renderer.
Ref: https://github.com/yuin/goldmark#typographer-extension
Fixes: https://github.com/go-gitea/gitea/issues/11001
* remove typographer extension completely
* fix test
* really fix test
Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
When matching emoji, use a regex built from the data we have instead of something generic using unicode ranges. A generic regex can't tell the difference between two separate emoji next to each other or one emoji that is built out of two separate emoji next to each other.
This means that emoji that are next to each other without space in between will be now accurately spanned individually with proper title etc...
* Support unicode emojis and remove emojify.js
This PR replaces all use of emojify.js and adds unicode emoji support to various areas of gitea.
This works in a few ways:
First it adds emoji parsing support into gitea itself. This allows us to
* Render emojis from valid alias (😄)
* Detect unicode emojis and let us put them in their own class with proper aria-labels and styling
* Easily allow for custom "emoji"
* Support all emoji rendering and features without javascript
* Uses plain unicode and lets the system render in appropriate emoji font
* Doesn't leave us relying on external sources for updates/fixes/features
That same list of emoji is also used to create a json file which replaces the part of emojify.js that populates the emoji search tribute. This file is about 35KB with GZIP turned on and I've set it to load after the page renders to not hinder page load time (and this removes loading emojify.js also)
For custom "emoji" it uses a pretty simple scheme of just looking for /emojis/img/name.png where name is something a user has put in the "allowed reactions" setting we already have. The gitea reaction that was previously hard coded into a forked copy of emojify.js is included and works as a custom reaction under this method.
The emoji data sourced here is from https://github.com/github/gemoji which is the gem library Github uses for their emoji rendering (and a data source for other sites). So we should be able to easily render any emoji and :alias: that Github can, removing any errors from migrated content. They also update it as well, so we can sync when there are new unicode emoji lists released.
I've included a slimmed down and slightly modified forked copy of https://github.com/knq/emoji to make up our own emoji module. The code is pretty straight forward and again allows us to have a lot of flexibility in what happens.
I had seen a few comments about performance in some of the other threads if we render this ourselves, but there doesn't seem to be any issue here. In a test it can parse, convert, and render 1,000 emojis inside of a large markdown table in about 100ms on my laptop (which is many more emojis than will ever be in any normal issue). This also prevents any flickering and other weirdness from using javascript to render some things while using go for others.
Not included here are image fall back URLS. I don't really think they are necessary for anything new being written in 2020. However, managing the emoji ourselves would allow us to add these as a feature later on if it seems necessary.
Fixes: https://github.com/go-gitea/gitea/issues/9182
Fixes: https://github.com/go-gitea/gitea/issues/8974
Fixes: https://github.com/go-gitea/gitea/issues/8953
Fixes: https://github.com/go-gitea/gitea/issues/6628
Fixes: https://github.com/go-gitea/gitea/issues/5130
* add new shared function emojiHTML
* don't increase emoji size in issue title
* Update templates/repo/issue/view_content/add_reaction.tmpl
Co-Authored-By: 6543 <6543@obermui.de>
* Support for emoji rendering in various templates
* Render code and review comments as they should be
* Better way to handle mail subjects
* insert unicode from tribute selection
* Add template helper for plain text when needed
* Use existing replace function I forgot about
* Don't include emoji greater than Unicode Version 12
Only include emoji and aliases in JSON
* Update build/generate-emoji.go
* Tweak regex slightly to really match everything including random invisible characters. Run tests for every emoji we have
* final updates
* code review
* code review
* hard code gitea custom emoji to match previous behavior
* Update .eslintrc
Co-Authored-By: silverwind <me@silverwind.io>
* disable preempt
Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com>
* Move to goldmark
Markdown rendering moved from blackfriday to the goldmark.
Multiple subtle changes required to the goldmark extensions to keep
current rendering and defaults.
Can go further with goldmark linkify and have this work within markdown
rendering making the link processor unnecessary.
Need to think about how to go about allowing extensions - at present it
seems that these would be hard to do without recompilation.
* linter fixes
Co-authored-by: Lauris BH <lauris@nix.lv>
* Check commit message hashes before making links
Previously, when formatting commit messages, anything
that looked like SHA1 hashes was turned into a link
using regex. This meant that certain phrases or numbers
such as `777777` or `deadbeef` could be recognized as a commit
even if the repository has no commit with those hashes.
This change will make it so that anything that looks
like a SHA1 hash using regex will then also be checked
to ensure that there is a commit in the repository
with that hash before making a link.
Signed-off-by: Gary Kim <gary@garykim.dev>
* Use gogit to check if commit exists
This commit modifies the commit hash check
in the render for commit messages to use
gogit for better performance.
Signed-off-by: Gary Kim <gary@garykim.dev>
* Make code cleaner
Signed-off-by: Gary Kim <gary@garykim.dev>
* Use rev-parse to check if commit exists
Signed-off-by: Gary Kim <gary@garykim.dev>
* Add and modify tests for checking hashes in html link rendering
Signed-off-by: Gary Kim <gary@garykim.dev>
* Return error in sha1CurrentPatternProcessor
Co-Authored-By: mrsdizzie <info@mrsdizzie.com>
* Import Gitea log module
Signed-off-by: Gary Kim <gary@garykim.dev>
* Revert "Return error in sha1CurrentPatternProcessor"
This reverts commit 28f561cac4.
Signed-off-by: Gary Kim <gary@garykim.dev>
* Add debug logging to sha1CurrentPatternProcessor
This will log errors by the git command run in
sha1CurrentPatternProcessor if the error is one
that was unexpected.
Signed-off-by: Gary Kim <gary@garykim.dev>
Since #6273 was merged, we now have access to proper context metas
always. Update SHA generated links to use these instead of urlPrefix.
Update tests as well.
Fixes #4536.
* Use stricter boundaries for auto-link detection
Currently autolinks use \W for boundary detection which creates many
situations of inserting links into places they don't belong (paths,
URLs, UUIDs, etc...)
This fixes that by replacing \W and only allowing these matches to touch
an open paren or bracket (matching what seems to be Github behavior) in
addition to whitespace and start of line. Similar for ending boundary as
well.
Fixes #6149
(and probably others)
* Update test
Replace incorrect test with a value that is a valid username, based on:
"Username should contain only alphanumeric, dash ('-'), underscore ('_')
and dot ('.') characters."
* Also allow for period at the end
Matching Github behavior
* Fix email regex to work properly with specificed boundaries
Create a specific capture group for email address and then use
FindStringSubmatchIndex to allow for non-matching patterns as
boundaries.
* Add Tests
Add tests for new behavior -- including tests for email addresses which
were absent before.
