| /* cgit.c: cgi for the git scm |
| * |
| * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com> |
| * |
| * Licensed under GNU General Public License v2 |
| * (see COPYING for full license text) |
| */ |
| |
| #include "cgit.h" |
| #include "cache.h" |
| #include "cmd.h" |
| #include "configfile.h" |
| #include "html.h" |
| #include "ui-shared.h" |
| #include "ui-stats.h" |
| #include "ui-blob.h" |
| #include "ui-summary.h" |
| #include "scan-tree.h" |
| |
| const char *cgit_version = CGIT_VERSION; |
| |
| static void add_mimetype(const char *name, const char *value) |
| { |
| struct string_list_item *item; |
| |
| item = string_list_insert(&ctx.cfg.mimetypes, xstrdup(name)); |
| item->util = xstrdup(value); |
| } |
| |
| static void process_cached_repolist(const char *path); |
| |
| static void repo_config(struct cgit_repo *repo, const char *name, const char *value) |
| { |
| const char *path; |
| struct string_list_item *item; |
| |
| if (!strcmp(name, "name")) |
| repo->name = xstrdup(value); |
| else if (!strcmp(name, "clone-url")) |
| repo->clone_url = xstrdup(value); |
| else if (!strcmp(name, "desc")) |
| repo->desc = xstrdup(value); |
| else if (!strcmp(name, "owner")) |
| repo->owner = xstrdup(value); |
| else if (!strcmp(name, "homepage")) |
| repo->homepage = xstrdup(value); |
| else if (!strcmp(name, "defbranch")) |
| repo->defbranch = xstrdup(value); |
| else if (!strcmp(name, "snapshots")) |
| repo->snapshots = ctx.cfg.snapshots & cgit_parse_snapshots_mask(value); |
| else if (!strcmp(name, "enable-commit-graph")) |
| repo->enable_commit_graph = atoi(value); |
| else if (!strcmp(name, "enable-log-filecount")) |
| repo->enable_log_filecount = atoi(value); |
| else if (!strcmp(name, "enable-log-linecount")) |
| repo->enable_log_linecount = atoi(value); |
| else if (!strcmp(name, "enable-remote-branches")) |
| repo->enable_remote_branches = atoi(value); |
| else if (!strcmp(name, "enable-subject-links")) |
| repo->enable_subject_links = atoi(value); |
| else if (!strcmp(name, "enable-html-serving")) |
| repo->enable_html_serving = atoi(value); |
| else if (!strcmp(name, "branch-sort")) { |
| if (!strcmp(value, "age")) |
| repo->branch_sort = 1; |
| if (!strcmp(value, "name")) |
| repo->branch_sort = 0; |
| } else if (!strcmp(name, "commit-sort")) { |
| if (!strcmp(value, "date")) |
| repo->commit_sort = 1; |
| if (!strcmp(value, "topo")) |
| repo->commit_sort = 2; |
| } else if (!strcmp(name, "max-stats")) |
| repo->max_stats = cgit_find_stats_period(value, NULL); |
| else if (!strcmp(name, "module-link")) |
| repo->module_link= xstrdup(value); |
| else if (skip_prefix(name, "module-link.", &path)) { |
| item = string_list_append(&repo->submodules, xstrdup(path)); |
| item->util = xstrdup(value); |
| } else if (!strcmp(name, "section")) |
| repo->section = xstrdup(value); |
| else if (!strcmp(name, "readme") && value != NULL) { |
| if (repo->readme.items == ctx.cfg.readme.items) |
| memset(&repo->readme, 0, sizeof(repo->readme)); |
| string_list_append(&repo->readme, xstrdup(value)); |
| } else if (!strcmp(name, "logo") && value != NULL) |
| repo->logo = xstrdup(value); |
| else if (!strcmp(name, "logo-link") && value != NULL) |
| repo->logo_link = xstrdup(value); |
| else if (!strcmp(name, "hide")) |
| repo->hide = atoi(value); |
| else if (!strcmp(name, "ignore")) |
| repo->ignore = atoi(value); |
| else if (ctx.cfg.enable_filter_overrides) { |
| if (!strcmp(name, "about-filter")) |
| repo->about_filter = cgit_new_filter(value, ABOUT); |
| else if (!strcmp(name, "commit-filter")) |
| repo->commit_filter = cgit_new_filter(value, COMMIT); |
| else if (!strcmp(name, "source-filter")) |
| repo->source_filter = cgit_new_filter(value, SOURCE); |
| else if (!strcmp(name, "email-filter")) |
| repo->email_filter = cgit_new_filter(value, EMAIL); |
| else if (!strcmp(name, "owner-filter")) |
| repo->owner_filter = cgit_new_filter(value, OWNER); |
| } |
| } |
| |
| static void config_cb(const char *name, const char *value) |
| { |
| const char *arg; |
| |
| if (!strcmp(name, "section") || !strcmp(name, "repo.group")) |
| ctx.cfg.section = xstrdup(value); |
| else if (!strcmp(name, "repo.url")) |
| ctx.repo = cgit_add_repo(value); |
| else if (ctx.repo && !strcmp(name, "repo.path")) |
| ctx.repo->path = trim_end(value, '/'); |
| else if (ctx.repo && skip_prefix(name, "repo.", &arg)) |
| repo_config(ctx.repo, arg, value); |
| else if (!strcmp(name, "readme")) |
| string_list_append(&ctx.cfg.readme, xstrdup(value)); |
| else if (!strcmp(name, "root-title")) |
| ctx.cfg.root_title = xstrdup(value); |
| else if (!strcmp(name, "root-desc")) |
| ctx.cfg.root_desc = xstrdup(value); |
| else if (!strcmp(name, "root-readme")) |
| ctx.cfg.root_readme = xstrdup(value); |
| else if (!strcmp(name, "css")) |
| ctx.cfg.css = xstrdup(value); |
| else if (!strcmp(name, "favicon")) |
| ctx.cfg.favicon = xstrdup(value); |
| else if (!strcmp(name, "footer")) |
| ctx.cfg.footer = xstrdup(value); |
| else if (!strcmp(name, "head-include")) |
| ctx.cfg.head_include = xstrdup(value); |
| else if (!strcmp(name, "header")) |
| ctx.cfg.header = xstrdup(value); |
| else if (!strcmp(name, "logo")) |
| ctx.cfg.logo = xstrdup(value); |
| else if (!strcmp(name, "index-header")) |
| ctx.cfg.index_header = xstrdup(value); |
| else if (!strcmp(name, "index-info")) |
| ctx.cfg.index_info = xstrdup(value); |
| else if (!strcmp(name, "logo-link")) |
| ctx.cfg.logo_link = xstrdup(value); |
| else if (!strcmp(name, "module-link")) |
| ctx.cfg.module_link = xstrdup(value); |
| else if (!strcmp(name, "strict-export")) |
| ctx.cfg.strict_export = xstrdup(value); |
| else if (!strcmp(name, "virtual-root")) { |
| ctx.cfg.virtual_root = ensure_end(value, '/'); |
| } else if (!strcmp(name, "nocache")) |
| ctx.cfg.nocache = atoi(value); |
| else if (!strcmp(name, "noplainemail")) |
| ctx.cfg.noplainemail = atoi(value); |
| else if (!strcmp(name, "noheader")) |
| ctx.cfg.noheader = atoi(value); |
| else if (!strcmp(name, "snapshots")) |
| ctx.cfg.snapshots = cgit_parse_snapshots_mask(value); |
| else if (!strcmp(name, "enable-filter-overrides")) |
| ctx.cfg.enable_filter_overrides = atoi(value); |
| else if (!strcmp(name, "enable-follow-links")) |
| ctx.cfg.enable_follow_links = atoi(value); |
| else if (!strcmp(name, "enable-http-clone")) |
| ctx.cfg.enable_http_clone = atoi(value); |
| else if (!strcmp(name, "enable-index-links")) |
| ctx.cfg.enable_index_links = atoi(value); |
| else if (!strcmp(name, "enable-index-owner")) |
| ctx.cfg.enable_index_owner = atoi(value); |
| else if (!strcmp(name, "enable-blame")) |
| ctx.cfg.enable_blame = atoi(value); |
| else if (!strcmp(name, "enable-commit-graph")) |
| ctx.cfg.enable_commit_graph = atoi(value); |
| else if (!strcmp(name, "enable-log-filecount")) |
| ctx.cfg.enable_log_filecount = atoi(value); |
| else if (!strcmp(name, "enable-log-linecount")) |
| ctx.cfg.enable_log_linecount = atoi(value); |
| else if (!strcmp(name, "enable-remote-branches")) |
| ctx.cfg.enable_remote_branches = atoi(value); |
| else if (!strcmp(name, "enable-subject-links")) |
| ctx.cfg.enable_subject_links = atoi(value); |
| else if (!strcmp(name, "enable-html-serving")) |
| ctx.cfg.enable_html_serving = atoi(value); |
| else if (!strcmp(name, "enable-tree-linenumbers")) |
| ctx.cfg.enable_tree_linenumbers = atoi(value); |
| else if (!strcmp(name, "enable-git-config")) |
| ctx.cfg.enable_git_config = atoi(value); |
| else if (!strcmp(name, "max-stats")) |
| ctx.cfg.max_stats = cgit_find_stats_period(value, NULL); |
| else if (!strcmp(name, "cache-size")) |
| ctx.cfg.cache_size = atoi(value); |
| else if (!strcmp(name, "cache-root")) |
| ctx.cfg.cache_root = xstrdup(expand_macros(value)); |
| else if (!strcmp(name, "cache-root-ttl")) |
| ctx.cfg.cache_root_ttl = atoi(value); |
| else if (!strcmp(name, "cache-repo-ttl")) |
| ctx.cfg.cache_repo_ttl = atoi(value); |
| else if (!strcmp(name, "cache-scanrc-ttl")) |
| ctx.cfg.cache_scanrc_ttl = atoi(value); |
| else if (!strcmp(name, "cache-static-ttl")) |
| ctx.cfg.cache_static_ttl = atoi(value); |
| else if (!strcmp(name, "cache-dynamic-ttl")) |
| ctx.cfg.cache_dynamic_ttl = atoi(value); |
| else if (!strcmp(name, "cache-about-ttl")) |
| ctx.cfg.cache_about_ttl = atoi(value); |
| else if (!strcmp(name, "cache-snapshot-ttl")) |
| ctx.cfg.cache_snapshot_ttl = atoi(value); |
| else if (!strcmp(name, "case-sensitive-sort")) |
| ctx.cfg.case_sensitive_sort = atoi(value); |
| else if (!strcmp(name, "about-filter")) |
| ctx.cfg.about_filter = cgit_new_filter(value, ABOUT); |
| else if (!strcmp(name, "commit-filter")) |
| ctx.cfg.commit_filter = cgit_new_filter(value, COMMIT); |
| else if (!strcmp(name, "email-filter")) |
| ctx.cfg.email_filter = cgit_new_filter(value, EMAIL); |
| else if (!strcmp(name, "owner-filter")) |
| ctx.cfg.owner_filter = cgit_new_filter(value, OWNER); |
| else if (!strcmp(name, "auth-filter")) |
| ctx.cfg.auth_filter = cgit_new_filter(value, AUTH); |
| else if (!strcmp(name, "embedded")) |
| ctx.cfg.embedded = atoi(value); |
| else if (!strcmp(name, "max-atom-items")) |
| ctx.cfg.max_atom_items = atoi(value); |
| else if (!strcmp(name, "max-message-length")) |
| ctx.cfg.max_msg_len = atoi(value); |
| else if (!strcmp(name, "max-repodesc-length")) |
| ctx.cfg.max_repodesc_len = atoi(value); |
| else if (!strcmp(name, "max-blob-size")) |
| ctx.cfg.max_blob_size = atoi(value); |
| else if (!strcmp(name, "max-repo-count")) |
| ctx.cfg.max_repo_count = atoi(value); |
| else if (!strcmp(name, "max-commit-count")) |
| ctx.cfg.max_commit_count = atoi(value); |
| else if (!strcmp(name, "project-list")) |
| ctx.cfg.project_list = xstrdup(expand_macros(value)); |
| else if (!strcmp(name, "scan-path")) |
| if (!ctx.cfg.nocache && ctx.cfg.cache_size) |
| process_cached_repolist(expand_macros(value)); |
| else if (ctx.cfg.project_list) |
| scan_projects(expand_macros(value), |
| ctx.cfg.project_list, repo_config); |
| else |
| scan_tree(expand_macros(value), repo_config); |
| else if (!strcmp(name, "scan-hidden-path")) |
| ctx.cfg.scan_hidden_path = atoi(value); |
| else if (!strcmp(name, "section-from-path")) |
| ctx.cfg.section_from_path = atoi(value); |
| else if (!strcmp(name, "repository-sort")) |
| ctx.cfg.repository_sort = xstrdup(value); |
| else if (!strcmp(name, "section-sort")) |
| ctx.cfg.section_sort = atoi(value); |
| else if (!strcmp(name, "source-filter")) |
| ctx.cfg.source_filter = cgit_new_filter(value, SOURCE); |
| else if (!strcmp(name, "summary-log")) |
| ctx.cfg.summary_log = atoi(value); |
| else if (!strcmp(name, "summary-branches")) |
| ctx.cfg.summary_branches = atoi(value); |
| else if (!strcmp(name, "summary-tags")) |
| ctx.cfg.summary_tags = atoi(value); |
| else if (!strcmp(name, "side-by-side-diffs")) |
| ctx.cfg.difftype = atoi(value) ? DIFF_SSDIFF : DIFF_UNIFIED; |
| else if (!strcmp(name, "agefile")) |
| ctx.cfg.agefile = xstrdup(value); |
| else if (!strcmp(name, "mimetype-file")) |
| ctx.cfg.mimetype_file = xstrdup(value); |
| else if (!strcmp(name, "renamelimit")) |
| ctx.cfg.renamelimit = atoi(value); |
| else if (!strcmp(name, "remove-suffix")) |
| ctx.cfg.remove_suffix = atoi(value); |
| else if (!strcmp(name, "robots")) |
| ctx.cfg.robots = xstrdup(value); |
| else if (!strcmp(name, "clone-prefix")) |
| ctx.cfg.clone_prefix = xstrdup(value); |
| else if (!strcmp(name, "clone-url")) |
| ctx.cfg.clone_url = xstrdup(value); |
| else if (!strcmp(name, "local-time")) |
| ctx.cfg.local_time = atoi(value); |
| else if (!strcmp(name, "commit-sort")) { |
| if (!strcmp(value, "date")) |
| ctx.cfg.commit_sort = 1; |
| if (!strcmp(value, "topo")) |
| ctx.cfg.commit_sort = 2; |
| } else if (!strcmp(name, "branch-sort")) { |
| if (!strcmp(value, "age")) |
| ctx.cfg.branch_sort = 1; |
| if (!strcmp(value, "name")) |
| ctx.cfg.branch_sort = 0; |
| } else if (skip_prefix(name, "mimetype.", &arg)) |
| add_mimetype(arg, value); |
| else if (!strcmp(name, "include")) |
| parse_configfile(expand_macros(value), config_cb); |
| } |
| |
| static void querystring_cb(const char *name, const char *value) |
| { |
| if (!value) |
| value = ""; |
| |
| if (!strcmp(name,"r")) { |
| ctx.qry.repo = xstrdup(value); |
| ctx.repo = cgit_get_repoinfo(value); |
| } else if (!strcmp(name, "p")) { |
| ctx.qry.page = xstrdup(value); |
| } else if (!strcmp(name, "url")) { |
| if (*value == '/') |
| value++; |
| ctx.qry.url = xstrdup(value); |
| cgit_parse_url(value); |
| } else if (!strcmp(name, "qt")) { |
| ctx.qry.grep = xstrdup(value); |
| } else if (!strcmp(name, "q")) { |
| ctx.qry.search = xstrdup(value); |
| } else if (!strcmp(name, "h")) { |
| ctx.qry.head = xstrdup(value); |
| ctx.qry.has_symref = 1; |
| } else if (!strcmp(name, "id")) { |
| ctx.qry.sha1 = xstrdup(value); |
| ctx.qry.has_sha1 = 1; |
| } else if (!strcmp(name, "id2")) { |
| ctx.qry.sha2 = xstrdup(value); |
| ctx.qry.has_sha1 = 1; |
| } else if (!strcmp(name, "ofs")) { |
| ctx.qry.ofs = atoi(value); |
| } else if (!strcmp(name, "path")) { |
| ctx.qry.path = trim_end(value, '/'); |
| } else if (!strcmp(name, "name")) { |
| ctx.qry.name = xstrdup(value); |
| } else if (!strcmp(name, "s")) { |
| ctx.qry.sort = xstrdup(value); |
| } else if (!strcmp(name, "showmsg")) { |
| ctx.qry.showmsg = atoi(value); |
| } else if (!strcmp(name, "period")) { |
| ctx.qry.period = xstrdup(value); |
| } else if (!strcmp(name, "dt")) { |
| ctx.qry.difftype = atoi(value); |
| ctx.qry.has_difftype = 1; |
| } else if (!strcmp(name, "ss")) { |
| /* No longer generated, but there may be links out there. */ |
| ctx.qry.difftype = atoi(value) ? DIFF_SSDIFF : DIFF_UNIFIED; |
| ctx.qry.has_difftype = 1; |
| } else if (!strcmp(name, "all")) { |
| ctx.qry.show_all = atoi(value); |
| } else if (!strcmp(name, "context")) { |
| ctx.qry.context = atoi(value); |
| } else if (!strcmp(name, "ignorews")) { |
| ctx.qry.ignorews = atoi(value); |
| } else if (!strcmp(name, "follow")) { |
| ctx.qry.follow = atoi(value); |
| } |
| } |
| |
| static void prepare_context(void) |
| { |
| memset(&ctx, 0, sizeof(ctx)); |
| ctx.cfg.agefile = "info/web/last-modified"; |
| ctx.cfg.nocache = 0; |
| ctx.cfg.cache_size = 0; |
| ctx.cfg.cache_max_create_time = 5; |
| ctx.cfg.cache_root = CGIT_CACHE_ROOT; |
| ctx.cfg.cache_about_ttl = 15; |
| ctx.cfg.cache_snapshot_ttl = 5; |
| ctx.cfg.cache_repo_ttl = 5; |
| ctx.cfg.cache_root_ttl = 5; |
| ctx.cfg.cache_scanrc_ttl = 15; |
| ctx.cfg.cache_dynamic_ttl = 5; |
| ctx.cfg.cache_static_ttl = -1; |
| ctx.cfg.case_sensitive_sort = 1; |
| ctx.cfg.branch_sort = 0; |
| ctx.cfg.commit_sort = 0; |
| ctx.cfg.css = "/cgit.css"; |
| ctx.cfg.logo = "/cgit.png"; |
| ctx.cfg.favicon = "/favicon.ico"; |
| ctx.cfg.local_time = 0; |
| ctx.cfg.enable_http_clone = 1; |
| ctx.cfg.enable_index_owner = 1; |
| ctx.cfg.enable_tree_linenumbers = 1; |
| ctx.cfg.enable_git_config = 0; |
| ctx.cfg.max_repo_count = 50; |
| ctx.cfg.max_commit_count = 50; |
| ctx.cfg.max_lock_attempts = 5; |
| ctx.cfg.max_msg_len = 80; |
| ctx.cfg.max_repodesc_len = 80; |
| ctx.cfg.max_blob_size = 0; |
| ctx.cfg.max_stats = 0; |
| ctx.cfg.project_list = NULL; |
| ctx.cfg.renamelimit = -1; |
| ctx.cfg.remove_suffix = 0; |
| ctx.cfg.robots = "index, nofollow"; |
| ctx.cfg.root_title = "Git repository browser"; |
| ctx.cfg.root_desc = "a fast webinterface for the git dscm"; |
| ctx.cfg.scan_hidden_path = 0; |
| ctx.cfg.script_name = CGIT_SCRIPT_NAME; |
| ctx.cfg.section = ""; |
| ctx.cfg.repository_sort = "name"; |
| ctx.cfg.section_sort = 1; |
| ctx.cfg.summary_branches = 10; |
| ctx.cfg.summary_log = 10; |
| ctx.cfg.summary_tags = 10; |
| ctx.cfg.max_atom_items = 10; |
| ctx.cfg.difftype = DIFF_UNIFIED; |
| ctx.env.cgit_config = getenv("CGIT_CONFIG"); |
| ctx.env.http_host = getenv("HTTP_HOST"); |
| ctx.env.https = getenv("HTTPS"); |
| ctx.env.no_http = getenv("NO_HTTP"); |
| ctx.env.path_info = getenv("PATH_INFO"); |
| ctx.env.query_string = getenv("QUERY_STRING"); |
| ctx.env.request_method = getenv("REQUEST_METHOD"); |
| ctx.env.script_name = getenv("SCRIPT_NAME"); |
| ctx.env.server_name = getenv("SERVER_NAME"); |
| ctx.env.server_port = getenv("SERVER_PORT"); |
| ctx.env.http_cookie = getenv("HTTP_COOKIE"); |
| ctx.env.http_referer = getenv("HTTP_REFERER"); |
| ctx.env.content_length = getenv("CONTENT_LENGTH") ? strtoul(getenv("CONTENT_LENGTH"), NULL, 10) : 0; |
| ctx.env.authenticated = 0; |
| ctx.page.mimetype = "text/html"; |
| ctx.page.charset = PAGE_ENCODING; |
| ctx.page.filename = NULL; |
| ctx.page.size = 0; |
| ctx.page.modified = time(NULL); |
| ctx.page.expires = ctx.page.modified; |
| ctx.page.etag = NULL; |
| memset(&ctx.cfg.mimetypes, 0, sizeof(struct string_list)); |
| if (ctx.env.script_name) |
| ctx.cfg.script_name = xstrdup(ctx.env.script_name); |
| if (ctx.env.query_string) |
| ctx.qry.raw = xstrdup(ctx.env.query_string); |
| if (!ctx.env.cgit_config) |
| ctx.env.cgit_config = CGIT_CONFIG; |
| } |
| |
| struct refmatch { |
| char *req_ref; |
| char *first_ref; |
| int match; |
| }; |
| |
| static int find_current_ref(const char *refname, const struct object_id *oid, |
| int flags, void *cb_data) |
| { |
| struct refmatch *info; |
| |
| info = (struct refmatch *)cb_data; |
| if (!strcmp(refname, info->req_ref)) |
| info->match = 1; |
| if (!info->first_ref) |
| info->first_ref = xstrdup(refname); |
| return info->match; |
| } |
| |
| static void free_refmatch_inner(struct refmatch *info) |
| { |
| if (info->first_ref) |
| free(info->first_ref); |
| } |
| |
| static char *find_default_branch(struct cgit_repo *repo) |
| { |
| struct refmatch info; |
| char *ref; |
| |
| info.req_ref = repo->defbranch; |
| info.first_ref = NULL; |
| info.match = 0; |
| for_each_branch_ref(find_current_ref, &info); |
| if (info.match) |
| ref = info.req_ref; |
| else |
| ref = info.first_ref; |
| if (ref) |
| ref = xstrdup(ref); |
| free_refmatch_inner(&info); |
| |
| return ref; |
| } |
| |
| static char *guess_defbranch(void) |
| { |
| const char *ref, *refname; |
| struct object_id oid; |
| |
| ref = resolve_ref_unsafe("HEAD", 0, oid.hash, NULL); |
| if (!ref || !skip_prefix(ref, "refs/heads/", &refname)) |
| return "master"; |
| return xstrdup(refname); |
| } |
| |
| /* The caller must free filename and ref after calling this. */ |
| static inline void parse_readme(const char *readme, char **filename, char **ref, struct cgit_repo *repo) |
| { |
| const char *colon; |
| |
| *filename = NULL; |
| *ref = NULL; |
| |
| if (!readme || !readme[0]) |
| return; |
| |
| /* Check if the readme is tracked in the git repo. */ |
| colon = strchr(readme, ':'); |
| if (colon && strlen(colon) > 1) { |
| /* If it starts with a colon, we want to use |
| * the default branch */ |
| if (colon == readme && repo->defbranch) |
| *ref = xstrdup(repo->defbranch); |
| else |
| *ref = xstrndup(readme, colon - readme); |
| readme = colon + 1; |
| } |
| |
| /* Prepend repo path to relative readme path unless tracked. */ |
| if (!(*ref) && readme[0] != '/') |
| *filename = fmtalloc("%s/%s", repo->path, readme); |
| else |
| *filename = xstrdup(readme); |
| } |
| static void choose_readme(struct cgit_repo *repo) |
| { |
| int found; |
| char *filename, *ref; |
| struct string_list_item *entry; |
| |
| if (!repo->readme.nr) |
| return; |
| |
| found = 0; |
| for_each_string_list_item(entry, &repo->readme) { |
| parse_readme(entry->string, &filename, &ref, repo); |
| if (!filename) { |
| free(filename); |
| free(ref); |
| continue; |
| } |
| if (ref) { |
| if (cgit_ref_path_exists(filename, ref, 1)) { |
| found = 1; |
| break; |
| } |
| } |
| else if (!access(filename, R_OK)) { |
| found = 1; |
| break; |
| } |
| free(filename); |
| free(ref); |
| } |
| repo->readme.strdup_strings = 1; |
| string_list_clear(&repo->readme, 0); |
| repo->readme.strdup_strings = 0; |
| if (found) |
| string_list_append(&repo->readme, filename)->util = ref; |
| } |
| |
| static void print_no_repo_clone_urls(const char *url) |
| { |
| html("<tr><td><a rel='vcs-git' href='"); |
| html_url_path(url); |
| html("' title='"); |
| html_attr(ctx.repo->name); |
| html(" Git repository'>"); |
| html_txt(url); |
| html("</a></td></tr>\n"); |
| } |
| |
| static int prepare_repo_cmd(void) |
| { |
| struct object_id oid; |
| int nongit = 0; |
| int rc; |
| |
| /* The path to the git repository. */ |
| setenv("GIT_DIR", ctx.repo->path, 1); |
| |
| /* Do not look in /etc/ for gitconfig and gitattributes. */ |
| setenv("GIT_CONFIG_NOSYSTEM", "1", 1); |
| setenv("GIT_ATTR_NOSYSTEM", "1", 1); |
| unsetenv("HOME"); |
| unsetenv("XDG_CONFIG_HOME"); |
| |
| /* Setup the git directory and initialize the notes system. Both of these |
| * load local configuration from the git repository, so we do them both while |
| * the HOME variables are unset. */ |
| setup_git_directory_gently(&nongit); |
| init_display_notes(NULL); |
| |
| if (nongit) { |
| const char *name = ctx.repo->name; |
| rc = errno; |
| ctx.page.title = fmtalloc("%s - %s", ctx.cfg.root_title, |
| "config error"); |
| ctx.repo = NULL; |
| cgit_print_http_headers(); |
| cgit_print_docstart(); |
| cgit_print_pageheader(); |
| cgit_print_error("Failed to open %s: %s", name, |
| rc ? strerror(rc) : "Not a valid git repository"); |
| cgit_print_docend(); |
| return 1; |
| } |
| ctx.page.title = fmtalloc("%s - %s", ctx.repo->name, ctx.repo->desc); |
| |
| if (!ctx.repo->defbranch) |
| ctx.repo->defbranch = guess_defbranch(); |
| |
| if (!ctx.qry.head) { |
| ctx.qry.nohead = 1; |
| ctx.qry.head = find_default_branch(ctx.repo); |
| } |
| |
| if (!ctx.qry.head) { |
| cgit_print_http_headers(); |
| cgit_print_docstart(); |
| cgit_print_pageheader(); |
| cgit_print_error("Repository seems to be empty"); |
| if (!strcmp(ctx.qry.page, "summary")) { |
| html("<table class='list'><tr class='nohover'><td> </td></tr><tr class='nohover'><th class='left'>Clone</th></tr>\n"); |
| cgit_prepare_repo_env(ctx.repo); |
| cgit_add_clone_urls(print_no_repo_clone_urls); |
| html("</table>\n"); |
| } |
| cgit_print_docend(); |
| return 1; |
| } |
| |
| if (get_oid(ctx.qry.head, &oid)) { |
| char *old_head = ctx.qry.head; |
| ctx.qry.head = xstrdup(ctx.repo->defbranch); |
| cgit_print_error_page(404, "Not found", |
| "Invalid branch: %s", old_head); |
| free(old_head); |
| return 1; |
| } |
| string_list_sort(&ctx.repo->submodules); |
| cgit_prepare_repo_env(ctx.repo); |
| choose_readme(ctx.repo); |
| return 0; |
| } |
| |
| static inline void open_auth_filter(const char *function) |
| { |
| cgit_open_filter(ctx.cfg.auth_filter, function, |
| ctx.env.http_cookie ? ctx.env.http_cookie : "", |
| ctx.env.request_method ? ctx.env.request_method : "", |
| ctx.env.query_string ? ctx.env.query_string : "", |
| ctx.env.http_referer ? ctx.env.http_referer : "", |
| ctx.env.path_info ? ctx.env.path_info : "", |
| ctx.env.http_host ? ctx.env.http_host : "", |
| ctx.env.https ? ctx.env.https : "", |
| ctx.qry.repo ? ctx.qry.repo : "", |
| ctx.qry.page ? ctx.qry.page : "", |
| ctx.qry.url ? ctx.qry.url : "", |
| cgit_loginurl()); |
| } |
| |
| /* We intentionally keep this rather small, instead of looping and |
| * feeding it to the filter a couple bytes at a time. This way, the |
| * filter itself does not need to handle any denial of service or |
| * buffer bloat issues. If this winds up being too small, people |
| * will complain on the mailing list, and we'll increase it as needed. */ |
| #define MAX_AUTHENTICATION_POST_BYTES 4096 |
| /* The filter is expected to spit out "Status: " and all headers. */ |
| static inline void authenticate_post(void) |
| { |
| char buffer[MAX_AUTHENTICATION_POST_BYTES]; |
| unsigned int len; |
| |
| open_auth_filter("authenticate-post"); |
| len = ctx.env.content_length; |
| if (len > MAX_AUTHENTICATION_POST_BYTES) |
| len = MAX_AUTHENTICATION_POST_BYTES; |
| if (read(STDIN_FILENO, buffer, len) < 0) |
| die_errno("Could not read POST from stdin"); |
| if (write(STDOUT_FILENO, buffer, len) < 0) |
| die_errno("Could not write POST to stdout"); |
| cgit_close_filter(ctx.cfg.auth_filter); |
| exit(0); |
| } |
| |
| static inline void authenticate_cookie(void) |
| { |
| /* If we don't have an auth_filter, consider all cookies valid, and thus return early. */ |
| if (!ctx.cfg.auth_filter) { |
| ctx.env.authenticated = 1; |
| return; |
| } |
| |
| /* If we're having something POST'd to /login, we're authenticating POST, |
| * instead of the cookie, so call authenticate_post and bail out early. |
| * This pattern here should match /?p=login with POST. */ |
| if (ctx.env.request_method && ctx.qry.page && !ctx.repo && \ |
| !strcmp(ctx.env.request_method, "POST") && !strcmp(ctx.qry.page, "login")) { |
| authenticate_post(); |
| return; |
| } |
| |
| /* If we've made it this far, we're authenticating the cookie for real, so do that. */ |
| open_auth_filter("authenticate-cookie"); |
| ctx.env.authenticated = cgit_close_filter(ctx.cfg.auth_filter); |
| } |
| |
| static void process_request(void) |
| { |
| struct cgit_cmd *cmd; |
| |
| /* If we're not yet authenticated, no matter what page we're on, |
| * display the authentication body from the auth_filter. This should |
| * never be cached. */ |
| if (!ctx.env.authenticated) { |
| ctx.page.title = "Authentication Required"; |
| cgit_print_http_headers(); |
| cgit_print_docstart(); |
| cgit_print_pageheader(); |
| open_auth_filter("body"); |
| cgit_close_filter(ctx.cfg.auth_filter); |
| cgit_print_docend(); |
| return; |
| } |
| |
| cmd = cgit_get_cmd(); |
| if (!cmd) { |
| ctx.page.title = "cgit error"; |
| cgit_print_error_page(404, "Not found", "Invalid request"); |
| return; |
| } |
| |
| if (!ctx.cfg.enable_http_clone && cmd->is_clone) { |
| ctx.page.title = "cgit error"; |
| cgit_print_error_page(404, "Not found", "Invalid request"); |
| return; |
| } |
| |
| if (cmd->want_repo && !ctx.repo) { |
| cgit_print_error_page(400, "Bad request", |
| "No repository selected"); |
| return; |
| } |
| |
| /* If cmd->want_vpath is set, assume ctx.qry.path contains a "virtual" |
| * in-project path limit to be made available at ctx.qry.vpath. |
| * Otherwise, no path limit is in effect (ctx.qry.vpath = NULL). |
| */ |
| ctx.qry.vpath = cmd->want_vpath ? ctx.qry.path : NULL; |
| |
| if (ctx.repo && prepare_repo_cmd()) |
| return; |
| |
| cmd->fn(); |
| } |
| |
| static int cmp_repos(const void *a, const void *b) |
| { |
| const struct cgit_repo *ra = a, *rb = b; |
| return strcmp(ra->url, rb->url); |
| } |
| |
| static char *build_snapshot_setting(int bitmap) |
| { |
| const struct cgit_snapshot_format *f; |
| struct strbuf result = STRBUF_INIT; |
| |
| for (f = cgit_snapshot_formats; f->suffix; f++) { |
| if (f->bit & bitmap) { |
| if (result.len) |
| strbuf_addch(&result, ' '); |
| strbuf_addstr(&result, f->suffix); |
| } |
| } |
| return strbuf_detach(&result, NULL); |
| } |
| |
| static char *get_first_line(char *txt) |
| { |
| char *t = xstrdup(txt); |
| char *p = strchr(t, '\n'); |
| if (p) |
| *p = '\0'; |
| return t; |
| } |
| |
| static void print_repo(FILE *f, struct cgit_repo *repo) |
| { |
| struct string_list_item *item; |
| fprintf(f, "repo.url=%s\n", repo->url); |
| fprintf(f, "repo.name=%s\n", repo->name); |
| fprintf(f, "repo.path=%s\n", repo->path); |
| if (repo->owner) |
| fprintf(f, "repo.owner=%s\n", repo->owner); |
| if (repo->desc) { |
| char *tmp = get_first_line(repo->desc); |
| fprintf(f, "repo.desc=%s\n", tmp); |
| free(tmp); |
| } |
| for_each_string_list_item(item, &repo->readme) { |
| if (item->util) |
| fprintf(f, "repo.readme=%s:%s\n", (char *)item->util, item->string); |
| else |
| fprintf(f, "repo.readme=%s\n", item->string); |
| } |
| if (repo->defbranch) |
| fprintf(f, "repo.defbranch=%s\n", repo->defbranch); |
| if (repo->module_link) |
| fprintf(f, "repo.module-link=%s\n", repo->module_link); |
| if (repo->section) |
| fprintf(f, "repo.section=%s\n", repo->section); |
| if (repo->homepage) |
| fprintf(f, "repo.homepage=%s\n", repo->homepage); |
| if (repo->clone_url) |
| fprintf(f, "repo.clone-url=%s\n", repo->clone_url); |
| fprintf(f, "repo.enable-commit-graph=%d\n", |
| repo->enable_commit_graph); |
| fprintf(f, "repo.enable-log-filecount=%d\n", |
| repo->enable_log_filecount); |
| fprintf(f, "repo.enable-log-linecount=%d\n", |
| repo->enable_log_linecount); |
| if (repo->about_filter && repo->about_filter != ctx.cfg.about_filter) |
| cgit_fprintf_filter(repo->about_filter, f, "repo.about-filter="); |
| if (repo->commit_filter && repo->commit_filter != ctx.cfg.commit_filter) |
| cgit_fprintf_filter(repo->commit_filter, f, "repo.commit-filter="); |
| if (repo->source_filter && repo->source_filter != ctx.cfg.source_filter) |
| cgit_fprintf_filter(repo->source_filter, f, "repo.source-filter="); |
| if (repo->email_filter && repo->email_filter != ctx.cfg.email_filter) |
| cgit_fprintf_filter(repo->email_filter, f, "repo.email-filter="); |
| if (repo->owner_filter && repo->owner_filter != ctx.cfg.owner_filter) |
| cgit_fprintf_filter(repo->owner_filter, f, "repo.owner-filter="); |
| if (repo->snapshots != ctx.cfg.snapshots) { |
| char *tmp = build_snapshot_setting(repo->snapshots); |
| fprintf(f, "repo.snapshots=%s\n", tmp ? tmp : ""); |
| free(tmp); |
| } |
| if (repo->max_stats != ctx.cfg.max_stats) |
| fprintf(f, "repo.max-stats=%s\n", |
| cgit_find_stats_periodname(repo->max_stats)); |
| if (repo->logo) |
| fprintf(f, "repo.logo=%s\n", repo->logo); |
| if (repo->logo_link) |
| fprintf(f, "repo.logo-link=%s\n", repo->logo_link); |
| fprintf(f, "repo.enable-remote-branches=%d\n", repo->enable_remote_branches); |
| fprintf(f, "repo.enable-subject-links=%d\n", repo->enable_subject_links); |
| fprintf(f, "repo.enable-html-serving=%d\n", repo->enable_html_serving); |
| if (repo->branch_sort == 1) |
| fprintf(f, "repo.branch-sort=age\n"); |
| if (repo->commit_sort) { |
| if (repo->commit_sort == 1) |
| fprintf(f, "repo.commit-sort=date\n"); |
| else if (repo->commit_sort == 2) |
| fprintf(f, "repo.commit-sort=topo\n"); |
| } |
| fprintf(f, "repo.hide=%d\n", repo->hide); |
| fprintf(f, "repo.ignore=%d\n", repo->ignore); |
| fprintf(f, "\n"); |
| } |
| |
| static void print_repolist(FILE *f, struct cgit_repolist *list, int start) |
| { |
| int i; |
| |
| for (i = start; i < list->count; i++) |
| print_repo(f, &list->repos[i]); |
| } |
| |
| /* Scan 'path' for git repositories, save the resulting repolist in 'cached_rc' |
| * and return 0 on success. |
| */ |
| static int generate_cached_repolist(const char *path, const char *cached_rc) |
| { |
| struct strbuf locked_rc = STRBUF_INIT; |
| int result = 0; |
| int idx; |
| FILE *f; |
| |
| strbuf_addf(&locked_rc, "%s.lock", cached_rc); |
| f = fopen(locked_rc.buf, "wx"); |
| if (!f) { |
| /* Inform about the error unless the lockfile already existed, |
| * since that only means we've got concurrent requests. |
| */ |
| result = errno; |
| if (result != EEXIST) |
| fprintf(stderr, "[cgit] Error opening %s: %s (%d)\n", |
| locked_rc.buf, strerror(result), result); |
| goto out; |
| } |
| idx = cgit_repolist.count; |
| if (ctx.cfg.project_list) |
| scan_projects(path, ctx.cfg.project_list, repo_config); |
| else |
| scan_tree(path, repo_config); |
| print_repolist(f, &cgit_repolist, idx); |
| if (rename(locked_rc.buf, cached_rc)) |
| fprintf(stderr, "[cgit] Error renaming %s to %s: %s (%d)\n", |
| locked_rc.buf, cached_rc, strerror(errno), errno); |
| fclose(f); |
| out: |
| strbuf_release(&locked_rc); |
| return result; |
| } |
| |
| static void process_cached_repolist(const char *path) |
| { |
| struct stat st; |
| struct strbuf cached_rc = STRBUF_INIT; |
| time_t age; |
| unsigned long hash; |
| |
| hash = hash_str(path); |
| if (ctx.cfg.project_list) |
| hash += hash_str(ctx.cfg.project_list); |
| strbuf_addf(&cached_rc, "%s/rc-%8lx", ctx.cfg.cache_root, hash); |
| |
| if (stat(cached_rc.buf, &st)) { |
| /* Nothing is cached, we need to scan without forking. And |
| * if we fail to generate a cached repolist, we need to |
| * invoke scan_tree manually. |
| */ |
| if (generate_cached_repolist(path, cached_rc.buf)) { |
| if (ctx.cfg.project_list) |
| scan_projects(path, ctx.cfg.project_list, |
| repo_config); |
| else |
| scan_tree(path, repo_config); |
| } |
| goto out; |
| } |
| |
| parse_configfile(cached_rc.buf, config_cb); |
| |
| /* If the cached configfile hasn't expired, lets exit now */ |
| age = time(NULL) - st.st_mtime; |
| if (age <= (ctx.cfg.cache_scanrc_ttl * 60)) |
| goto out; |
| |
| /* The cached repolist has been parsed, but it was old. So lets |
| * rescan the specified path and generate a new cached repolist |
| * in a child-process to avoid latency for the current request. |
| */ |
| if (fork()) |
| goto out; |
| |
| exit(generate_cached_repolist(path, cached_rc.buf)); |
| out: |
| strbuf_release(&cached_rc); |
| } |
| |
| static void cgit_parse_args(int argc, const char **argv) |
| { |
| int i; |
| const char *arg; |
| int scan = 0; |
| |
| for (i = 1; i < argc; i++) { |
| if (!strcmp(argv[i], "--version")) { |
| printf("CGit %s | https://git.zx2c4.com/cgit/\n\nCompiled in features:\n", CGIT_VERSION); |
| #ifdef NO_LUA |
| printf("[-] "); |
| #else |
| printf("[+] "); |
| #endif |
| printf("Lua scripting\n"); |
| #ifndef HAVE_LINUX_SENDFILE |
| printf("[-] "); |
| #else |
| printf("[+] "); |
| #endif |
| printf("Linux sendfile() usage\n"); |
| |
| exit(0); |
| } |
| if (skip_prefix(argv[i], "--cache=", &arg)) { |
| ctx.cfg.cache_root = xstrdup(arg); |
| } else if (!strcmp(argv[i], "--nocache")) { |
| ctx.cfg.nocache = 1; |
| } else if (!strcmp(argv[i], "--nohttp")) { |
| ctx.env.no_http = "1"; |
| } else if (skip_prefix(argv[i], "--query=", &arg)) { |
| ctx.qry.raw = xstrdup(arg); |
| } else if (skip_prefix(argv[i], "--repo=", &arg)) { |
| ctx.qry.repo = xstrdup(arg); |
| } else if (skip_prefix(argv[i], "--page=", &arg)) { |
| ctx.qry.page = xstrdup(arg); |
| } else if (skip_prefix(argv[i], "--head=", &arg)) { |
| ctx.qry.head = xstrdup(arg); |
| ctx.qry.has_symref = 1; |
| } else if (skip_prefix(argv[i], "--sha1=", &arg)) { |
| ctx.qry.sha1 = xstrdup(arg); |
| ctx.qry.has_sha1 = 1; |
| } else if (skip_prefix(argv[i], "--ofs=", &arg)) { |
| ctx.qry.ofs = atoi(arg); |
| } else if (skip_prefix(argv[i], "--scan-tree=", &arg) || |
| skip_prefix(argv[i], "--scan-path=", &arg)) { |
| /* |
| * HACK: The global snapshot bit mask defines the set |
| * of allowed snapshot formats, but the config file |
| * hasn't been parsed yet so the mask is currently 0. |
| * By setting all bits high before scanning we make |
| * sure that any in-repo cgitrc snapshot setting is |
| * respected by scan_tree(). |
| * |
| * NOTE: We assume that there aren't more than 8 |
| * different snapshot formats supported by cgit... |
| */ |
| ctx.cfg.snapshots = 0xFF; |
| scan++; |
| scan_tree(arg, repo_config); |
| } |
| } |
| if (scan) { |
| qsort(cgit_repolist.repos, cgit_repolist.count, |
| sizeof(struct cgit_repo), cmp_repos); |
| print_repolist(stdout, &cgit_repolist, 0); |
| exit(0); |
| } |
| } |
| |
| static int calc_ttl(void) |
| { |
| if (!ctx.repo) |
| return ctx.cfg.cache_root_ttl; |
| |
| if (!ctx.qry.page) |
| return ctx.cfg.cache_repo_ttl; |
| |
| if (!strcmp(ctx.qry.page, "about")) |
| return ctx.cfg.cache_about_ttl; |
| |
| if (!strcmp(ctx.qry.page, "snapshot")) |
| return ctx.cfg.cache_snapshot_ttl; |
| |
| if (ctx.qry.has_sha1) |
| return ctx.cfg.cache_static_ttl; |
| |
| if (ctx.qry.has_symref) |
| return ctx.cfg.cache_dynamic_ttl; |
| |
| return ctx.cfg.cache_repo_ttl; |
| } |
| |
| int cmd_main(int argc, const char **argv) |
| { |
| const char *path; |
| int err, ttl; |
| |
| cgit_init_filters(); |
| atexit(cgit_cleanup_filters); |
| |
| prepare_context(); |
| cgit_repolist.length = 0; |
| cgit_repolist.count = 0; |
| cgit_repolist.repos = NULL; |
| |
| cgit_parse_args(argc, argv); |
| parse_configfile(expand_macros(ctx.env.cgit_config), config_cb); |
| ctx.repo = NULL; |
| http_parse_querystring(ctx.qry.raw, querystring_cb); |
| |
| /* If virtual-root isn't specified in cgitrc, lets pretend |
| * that virtual-root equals SCRIPT_NAME, minus any possibly |
| * trailing slashes. |
| */ |
| if (!ctx.cfg.virtual_root && ctx.cfg.script_name) |
| ctx.cfg.virtual_root = ensure_end(ctx.cfg.script_name, '/'); |
| |
| /* If no url parameter is specified on the querystring, lets |
| * use PATH_INFO as url. This allows cgit to work with virtual |
| * urls without the need for rewriterules in the webserver (as |
| * long as PATH_INFO is included in the cache lookup key). |
| */ |
| path = ctx.env.path_info; |
| if (!ctx.qry.url && path) { |
| if (path[0] == '/') |
| path++; |
| ctx.qry.url = xstrdup(path); |
| if (ctx.qry.raw) { |
| char *newqry = fmtalloc("%s?%s", path, ctx.qry.raw); |
| free(ctx.qry.raw); |
| ctx.qry.raw = newqry; |
| } else |
| ctx.qry.raw = xstrdup(ctx.qry.url); |
| cgit_parse_url(ctx.qry.url); |
| } |
| |
| /* Before we go any further, we set ctx.env.authenticated by checking to see |
| * if the supplied cookie is valid. All cookies are valid if there is no |
| * auth_filter. If there is an auth_filter, the filter decides. */ |
| authenticate_cookie(); |
| |
| ttl = calc_ttl(); |
| if (ttl < 0) |
| ctx.page.expires += 10 * 365 * 24 * 60 * 60; /* 10 years */ |
| else |
| ctx.page.expires += ttl * 60; |
| if (!ctx.env.authenticated || (ctx.env.request_method && !strcmp(ctx.env.request_method, "HEAD"))) |
| ctx.cfg.nocache = 1; |
| if (ctx.cfg.nocache) |
| ctx.cfg.cache_size = 0; |
| err = cache_process(ctx.cfg.cache_size, ctx.cfg.cache_root, |
| ctx.qry.raw, ttl, process_request); |
| cgit_cleanup_filters(); |
| if (err) |
| cgit_print_error("Error processing page: %s (%d)", |
| strerror(err), err); |
| return err; |
| } |