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2013-08-12robots.txt: disallow access to snapshotsJason A. Donenfeld
My dmesg is filled with the oom killer bringing down processes while the Bingbot downloads every snapshot for every commit of the Linux kernel in tar.xz format. Sure, I should be running with memory limits, and now I'm using cgroups, but a more general solution is to prevent crawlers from wasting resources like that in the first place. Suggested-by: Natanael Copa <ncopa@alpinelinux.org> Suggested-by: Julius Plenz <plenz@cis.fu-berlin.de> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-08-12use favicon by defaultChristian Hesse
2013-05-31Add faviconChristian Hesse
This adds a favicon to cgit. It is not enabled by default, though. The file contains two icons, 16x16 and 32x32 pixels, optimized for size.
2013-05-28ui-summary: do not free refJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-05-28filters: toggle perl utf8 situationJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-05-27CGIT-0.9.2Jason A. Donenfeld
Features: - update to git v1.8.3. - expanded set of default filters to include markdown, restructuredtext, and man pages. - better sample configuration file in man page. - "readme" may now be specified multiple times, and cgit will choose the first one it finds. - "readme" no longer needs a branch name. If prefixed with simply ":" it will use the default branch. - "branch-sort" allowing branches to be sorted either by "age" or "name", for kernel.org. - "enable-index-owner" allowing the owner column to be disabled in the index page. - print submodule revision next to submodule link. - integrate more closely with git apis, such as strbuf. - rely on git test harness and git makefiles. - more robust test suite. - more rebust makefile dependency accounting. - pager navigation is now unordered list. - span tag wraps commit directions. Behavior changes: - HOME is no longer passed as an environment variable to any filter api scripts. - "about-filter" now receives the filename being filtered as argv[1]. This may disrupt existing scripts, so adjust accordingly. - gitconfig and gitattributes are no longer loaded from any system directories or home directories. Security: - CVE-2013-2117: disallow directory traversal when readme is set to filesystem path. Bug fixes: - ssdiff now correctly manages tab expansion. - support unannotated tags in http git clone. - lots of cleanups of global variables and memory leaks. - do not rely on gettext/libintl. - better C standard compliance. - make several functions and variables static. - improved constification. - remove unused functions. - fix colspan values to correct width. - fix out-of-bounds memory accesses with virtual_root="". - cache repo config more precisely. - die when write fails. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-05-27README: add trailing slash to homepageJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-05-27cgitrc.5: improve example configJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-05-27filters: import more modern scriptsJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-05-26readme: use string_list instead of space deliminationsJason A. Donenfeld
Now this is possible in cgitrc - readme=:README.md readme=:readme.md readme=:README.mkd readme=:readme.mkd readme=:README.rst readme=:readme.rst readme=:README.html readme=:readme.html readme=:README.htm readme=:readme.htm readme=:README.txt readme=:readme.txt readme=:README readme=:readme readme=:INSTALL.txt readme=:install.txt readme=:INSTALL readme=:install Suggested-by: John Keeping <john@keeping.me.uk> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-05-25ui-summary: Disallow directory traversalJason A. Donenfeld
Using the url= query string, it was possible request arbitrary files from the filesystem if the readme for a given page was set to a filesystem file. The following request would return my /etc/passwd file: http://git.zx2c4.com/?url=/somerepo/about/../../../../etc/passwd http://data.zx2c4.com/cgit-directory-traversal.png This fix uses realpath(3) to canonicalize all paths, and then compares the base components. This fix introduces a subtle timing attack, whereby a client can check whether or not strstr is called using timing measurements in order to determine if a given file exists on the filesystem. This fix also does not account for filesystem race conditions (TOCTOU) in resolving symlinks. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-05-25cgitrc.5: information on directory traversal and multiple readme filesJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-05-25readme: Accept multiple candidates and test them.Jason A. Donenfeld
The readme variable may now contain multiple space deliminated entries, which per usual are either a filepath or a git ref filepath. If multiple are specified, cgit will now select the first one in the list that exists. This is to make it easier to specify multiple default readme types in the main cgitrc file and have them automatically get applied to each repo based on what exists. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-05-25ui-summary: Pass filename to about-filterJason A. Donenfeld
This gives the about-filter API the same semantics as source-filter, where the filter receives the filename so it can decide what to do next with it. While we're at it, plug a memory leak. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-05-25ui-summary: Use default branch for readme if : prefixJason A. Donenfeld
If the readme value begins with ":", and has no specified branch before it, use the repository's default branch. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-05-25cgit.c: Do not reset HOME after unsetting it.Jason A. Donenfeld
The number of odd cases in which git will try to read config is far too great to keep putting a bandaid over each one, so we'll just unset it. If it turns out that scripts really liked to know about $HOME, we can always reset it in the filter forks. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-05-25cgit.c: sync repo config printing with struct cgit_repoJason A. Donenfeld
We've now added quite a few config keys for repositories, but we've forgotten to update the printing of it for cache files. Synchronize the two. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-05-25git: update to 1.8.3John Keeping
No changes required, just bump the submodule and Makefile versions. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-05-22cache.c: cache ls_cache output properlyJohn Keeping
By using the standard library's printf, cache_ls does not redirect its output to the cache when we change the process' stdout file descriptor to point to the cache file. Fix this by using "htmlf" in the same way that we do for writing HTTP headers. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-05-22tests: introduce strip_header() helper functionJohn Keeping
This means that we can avoid hardcoding the number of headers we expect CGit to generate in test cases and simply remove whatever headers happen to by there when we are checking body content. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-05-22shared.c: use die_errno() where appropriateJohn Keeping
This replaces some code that is re-implementing die_errno by just calling the function. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-05-22html.c: die when write failsJohn Keeping
If we fail to write HTML output once, there's no point carrying on so just write a failure message once and die. By using Git's die_errno function we also let the user know in what way the write failed. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-05-22ui-log: add <span/> around commit decorationsJohn Keeping
This helps projects that have a large number of tags to display them all using custom CSS. The default stylesheet has not been updated since what is useful for projects with a lot of tags is not the same as what is useful for projects with only a small number of decorations per commit. Suggested-by: Konstantin Ryabitsev <mricon@kernel.org> Signed-off-by: John Keeping <john@keeping.me.uk>
2013-05-22Makefile: fix parallel "make test"John Keeping
When building the "test" target we depend on both cgit and building the Git tools. By doing this with two targets we end up running make in the git/ directory twice, concurrently if using parallel make, which causes us to build more than we need and potentially builds incorrectly if multi-step build-then-move operations overlap. Fix this by instead calling back into the makefile so that we alter the "cgit" target to also build the Git tools. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-05-18cache.c: fix cache_lsJohn Keeping
Commit fb3655d (use struct strbuf instead of static buffers, 2013-04-06) broke the logic in cache.c::cache_ls by failing to set slot->cache_name before calling open_slot. While fixing this, also free the strbufs added by that commit once we're done with them. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-05-13t0109: "function" is a bash-ismJohn Keeping
We try to stick to POSIX shell in the tests but a "function" keyword has found its way into t0109. Remove it. This makes the tests work with dash again. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-05-13New mailing list.Jason A. Donenfeld
2013-04-30ui-snapshot: do not access $HOMEJason A. Donenfeld
It's a bit tedious to have to do this here too. If we encounter other issues with $HOME down the line, I'll look into adding some nice utility functions to handle this, or perhaps giving up on the hope that we could keep $HOME defined for scripts. This commit additionally adds a test case, should the issue surface again. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-04-27t0001: validate Git -rcN version numbers correctlyJohn Keeping
When creating the GIT-VERSION-FILE that we use to test that the version of Git in git/ is the same as in the CGit Makefile, Git applies the transform "s/-/./g" to the version string. This doesn't affect released versions but does change RC version numbers such as 1.8.3-rc0. While CGit should only refer to a released Git version in general, it is useful to developers who want to test upcoming Git releases if the tests do work with RCs, so change t0001 to apply the same transform to our Makefile version before comparing it to the contents of GIT-VERSION-FILE. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-27git: update to 1.8.2.2John Keeping
No changes required, just bump the submodule and Makefile version. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-17scan-tree: fix regression in section-from-path=-1John Keeping
Commit fb3655d (use struct strbuf instead of static buffers - 2013-04-06) introduced a regression in the "section-from-path" handling when the configured value is negative. By changing the "rel" variable so that it includes a trailing slash, counting slashes from the end of the string no longer gives the same answer as it did before. Fix this by ensuring that "rel" does not have a trailing slash. Reported-by: Julius Plenz <plenz@cis.fu-berlin.de> Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-15t0001: ignore ".dirty" suffix on Git versionJohn Keeping
When testing modifications in Git that affect CGit, it is annoying to have t0001 failing simply because the Git version has a ".dirty" suffix when the version of Git there does indeed match that specified in the CGit makefile. Stop this by stripping the ".dirty" suffix from the GIT_VERSION variable. Note that this brings the "Git version" behaviour in line with the "submodule version" case which does not check if the working tree in git/ is modified. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-15tests: set TEST_OUTPUT_DIRECTORY to the CGit test directoryJohn Keeping
By default, Git's test suite puts the trash directories and test-results directory into its own directory, not that containing the tests being run. This is less convenient for inspecting test failures, so set the output directory to CGit's tests/ directory instead. Note that there is currently a bug in Git whereby it will create the trash directories in our tests/ directory regardless of the value of TEST_OUTPUT_DIRECTORY, and then fail to remove them once the tests are done. This change does currently affect the location of the test-results/ directory though. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-15t0109: test more URLsJohn Keeping
In order to ensure that we don't access $HOME at some point after initial startup when rendering a specific view, run the strace test on a range of different pages. This ensures that we don't end up reading a configuration later for some specific view. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-10cgitrc.5.txt: Specify when scan-path must be defined before.Jason A. Donenfeld
Several options must be specified prior to scan-path. This is consistant source of user confusion. Document these facts. Suggested-by: Lukas Fleischer <cgit@cryptocrack.de> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-04-10ui-snapshot.c: Prepend "V" when guessing ref namesLukas Fleischer
In cgit_print_snapshot_links() we strip leading "v" and "V", while we currently only prepend a lower case "v" when parsing a snapshot file name. This results in broken snapshot links for tags that start with an upper case "V". Avoid this by prepending a "V" as a fallback. Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
2013-04-10t0107: Skip ZIP tests if unzip(1) isn't availableLukas Fleischer
Note that we cannot use skip_all here since some tests have already been executed when ZIP tests are reached. Use test prerequisites to skip everything using unzip(1) if the binary is not available instead. Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
2013-04-10tests/: Do not use `sed -i`Lukas Fleischer
"-i" isn't part of the POSIX standard and doesn't work on several platforms such as OpenBSD. Use a temporary file instead. Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
2013-04-10Add branch-sort and repo.branch-sort options.Jason A. Donenfeld
When set to "name", branches are sorted by name, which is the current default. When set to "age", branches are sorted by the age of the repository. This feature was requested by Konstantin Ryabitsev for use on kernel.org. Proposed-by: Konstantin Ryabitsev <mricon@kernel.org>
2013-04-10t0109: chain operations with &&John Keeping
Without '&&' between operations, we will not detect if strace or cgit exit with an error status, which would cause a false positive test status in this case. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-10cgit.c: Do not restore unset environment variablesLukas Fleischer
getenv() returns a NULL pointer if the specified variable name cannot be found in the environment. However, some setenv() implementations crash if a NULL pointer is passed as second argument. Only restore variables that are not NULL. See commit d96d2c98ebc4c2d3765f5b35c4142e0e828a421b for a related patch. Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
2013-04-09t0107: Use `tar -z` for gzip'ed archivesLukas Fleischer
Some tar(1) versions do not support auto detection of the compression type. Explicitly specify "-z" to decompress a ".tar.gz" archive. Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
2013-04-08tests: Make sure that git does not access $HOMEJason A. Donenfeld
With the latest changes to prevent git from accessing configuration files that it should not, it's important to be sure that we won't have further breakage in the future. Use strace to implement a test to make sure cgit does not access() anything built from $HOME. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-04-08tests/.gitignore: update for using Git's test infrastructureJohn Keeping
Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-08tests: use Git's test frameworkJohn Keeping
This allows tests to run in parallel as well as letting us use "prove" or another TAP harness to run the tests. Git's test framework requires Git to be fully built before letting any tests run, so add a new target to the top-level Makefile which builds all of Git instead of just libgit.a and make the "test" target depend on that. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-08Do not load user or system gitconfig and gitattributesJason A. Donenfeld
While doing any kind of git loading, unset HOME variables and set NOSYSTEM variables so that cgit does not load any settings that a user may have set for his own /usr/bin/git usage. This fixes a fatal error introduced with git 1.8, whereupon git would fatally exit when failing to access particular files. The result of this is that only repo-local configuration files are accessed: zx2c4@thinkpad ~/Projects/cgit $ HOME=/root QUERY_STRING="url=foo/log" CGIT_CONFIG=tests/trash/cgitrc strace -e access ./cgit >/dev/null access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) access("repos/foo/.git/objects", X_OK) = 0 access("repos/foo/.git/refs", X_OK) = 0 access("repos/foo/.git/config", R_OK) = 0 access("repos/foo/.git/config", R_OK) = 0 access("repos/foo/.git/objects/b3/bafdbf0183f4897ef8b1319cb8c490ed54717e", F_OK) = 0 access("repos/foo/.git/objects/b3/bafdbf0183f4897ef8b1319cb8c490ed54717e", F_OK) = 0 access("repos/foo/.git/objects/b3/bafdbf0183f4897ef8b1319cb8c490ed54717e", F_OK) = 0 access("repos/foo/.git/objects/b3/bafdbf0183f4897ef8b1319cb8c490ed54717e", F_OK) = 0 +++ exited with 0 +++ Reported-by: Ferry Huberts <ferry.huberts@pelagic.nl> Tested-by: Jason A. Donenfeld <Jason@zx2c4.com> Tested-by: Ferry Huberts <ferry.huberts@pelagic.nl> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-04-08use struct strbuf instead of static buffersJohn Keeping
Use "struct strbuf" from Git to remove the limit on file path length. Notes on scan-tree: This is slightly involved since I decided to pass the strbuf into add_repo() and modify if whenever a new file name is required, which should avoid any extra allocations within that function. The pattern there is to append the filename, use it and then reset the buffer to its original length (retaining a trailing '/'). Notes on ui-snapshot: Since write_archive modifies the argv array passed to it we copy the argv_array values into a new array of char* and then free the original argv_array structure and the new array without worrying about what the values now look like. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-08Remove redundant calls to fmt("%s", ...)John Keeping
After this change there is one remaining call 'fmt("%s", delim)' in ui-shared.c but is needed as delim is stack allocated and so cannot be returned from the function. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-08Convert cgit_print_error to a variadic functionJohn Keeping
This removes many uses of "fmt" which uses a fixed size static pool of fixed size buffers. Instead of relying on these, we now pass around argument lists for as long as possible before using a strbuf to render content of an arbitrary size. Signed-off-by: John Keeping <john@keeping.me.uk>
2013-04-08shared.c: add strbuf_ensure_endJohn Keeping
This is a small helper so that we can easily ensure that a strbuf ends with the specified character. Signed-off-by: John Keeping <john@keeping.me.uk>