| -rw-r--r-- | cgit.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -1,718 +1,718 @@ /* cgit.c: cgi for the git scm * * Copyright (C) 2006 Lars Hjemli * * 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 "scan-tree.h" const char *cgit_version = CGIT_VERSION; void add_mimetype(const char *name, const char *value) { struct string_list_item *item; item = string_list_insert(xstrdup(name), &ctx.cfg.mimetypes); item->util = xstrdup(value); } struct cgit_filter *new_filter(const char *cmd, int extra_args) { struct cgit_filter *f; if (!cmd || !cmd[0]) return NULL; f = xmalloc(sizeof(struct cgit_filter)); f->cmd = xstrdup(cmd); f->argv = xmalloc((2 + extra_args) * sizeof(char *)); f->argv[0] = f->cmd; f->argv[1] = NULL; return f; } static void process_cached_repolist(const char *path); void repo_config(struct cgit_repo *repo, const char *name, const char *value) { 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, "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-log-filecount")) repo->enable_log_filecount = ctx.cfg.enable_log_filecount * atoi(value); else if (!strcmp(name, "enable-log-linecount")) repo->enable_log_linecount = ctx.cfg.enable_log_linecount * atoi(value); 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 (!strcmp(name, "section")) repo->section = xstrdup(value); else if (!strcmp(name, "readme") && value != NULL) { if (*value == '/') repo->readme = xstrdup(value); else repo->readme = xstrdup(fmt("%s/%s", repo->path, value)); } else if (ctx.cfg.enable_filter_overrides) { if (!strcmp(name, "about-filter")) repo->about_filter = new_filter(value, 0); else if (!strcmp(name, "commit-filter")) repo->commit_filter = new_filter(value, 0); else if (!strcmp(name, "source-filter")) repo->source_filter = new_filter(value, 1); } } void config_cb(const char *name, const char *value) { 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 && !prefixcmp(name, "repo.")) repo_config(ctx.repo, name + 5, 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, "virtual-root")) { ctx.cfg.virtual_root = trim_end(value, '/'); if (!ctx.cfg.virtual_root && (!strcmp(value, "/"))) ctx.cfg.virtual_root = ""; } 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-index-links")) ctx.cfg.enable_index_links = 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-tree-linenumbers")) ctx.cfg.enable_tree_linenumbers = 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(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, "about-filter")) ctx.cfg.about_filter = new_filter(value, 0); else if (!strcmp(name, "commit-filter")) ctx.cfg.commit_filter = new_filter(value, 0); else if (!strcmp(name, "embedded")) ctx.cfg.embedded = 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-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, "scan-path")) if (!ctx.cfg.nocache && ctx.cfg.cache_size) process_cached_repolist(value); else scan_tree(value, repo_config); else if (!strcmp(name, "source-filter")) ctx.cfg.source_filter = new_filter(value, 1); 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, "agefile")) ctx.cfg.agefile = xstrdup(value); else if (!strcmp(name, "renamelimit")) ctx.cfg.renamelimit = 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, "local-time")) ctx.cfg.local_time = atoi(value); else if (!prefixcmp(name, "mimetype.")) add_mimetype(name + 9, value); else if (!strcmp(name, "include")) parse_configfile(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")) { 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, "mimetype")) { ctx.qry.mimetype = 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); } } char *xstrdupn(const char *str) { return (str ? xstrdup(str) : NULL); } static void prepare_context(struct cgit_context *ctx) { - memset(ctx, 0, sizeof(ctx)); + memset(ctx, 0, sizeof(*ctx)); ctx->cfg.agefile = "info/web/last-modified"; ctx->cfg.nocache = 0; ctx->cfg.cache_size = 0; ctx->cfg.cache_dynamic_ttl = 5; ctx->cfg.cache_max_create_time = 5; ctx->cfg.cache_repo_ttl = 5; ctx->cfg.cache_root = CGIT_CACHE_ROOT; ctx->cfg.cache_root_ttl = 5; ctx->cfg.cache_scanrc_ttl = 15; ctx->cfg.cache_static_ttl = -1; ctx->cfg.css = "/cgit.css"; ctx->cfg.logo = "/cgit.png"; ctx->cfg.local_time = 0; ctx->cfg.enable_tree_linenumbers = 1; 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_stats = 0; ctx->cfg.module_link = "./?repo=%s&page=commit&id=%s"; ctx->cfg.renamelimit = -1; 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.script_name = CGIT_SCRIPT_NAME; ctx->cfg.section = ""; ctx->cfg.summary_branches = 10; ctx->cfg.summary_log = 10; ctx->cfg.summary_tags = 10; ctx->env.cgit_config = xstrdupn(getenv("CGIT_CONFIG")); ctx->env.http_host = xstrdupn(getenv("HTTP_HOST")); ctx->env.https = xstrdupn(getenv("HTTPS")); ctx->env.no_http = xstrdupn(getenv("NO_HTTP")); ctx->env.path_info = xstrdupn(getenv("PATH_INFO")); ctx->env.query_string = xstrdupn(getenv("QUERY_STRING")); ctx->env.request_method = xstrdupn(getenv("REQUEST_METHOD")); ctx->env.script_name = xstrdupn(getenv("SCRIPT_NAME")); ctx->env.server_name = xstrdupn(getenv("SERVER_NAME")); ctx->env.server_port = xstrdupn(getenv("SERVER_PORT")); 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 = ctx->env.script_name; if (ctx->env.query_string) ctx->qry.raw = 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; }; int find_current_ref(const char *refname, const unsigned char *sha1, 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; } 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); return ref; } static int prepare_repo_cmd(struct cgit_context *ctx) { char *tmp; unsigned char sha1[20]; int nongit = 0; setenv("GIT_DIR", ctx->repo->path, 1); setup_git_directory_gently(&nongit); if (nongit) { ctx->page.title = fmt("%s - %s", ctx->cfg.root_title, "config error"); tmp = fmt("Not a git repository: '%s'", ctx->repo->path); ctx->repo = NULL; cgit_print_http_headers(ctx); cgit_print_docstart(ctx); cgit_print_pageheader(ctx); cgit_print_error(tmp); cgit_print_docend(); return 1; } ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc); if (!ctx->qry.head) { ctx->qry.nohead = 1; ctx->qry.head = find_default_branch(ctx->repo); ctx->repo->defbranch = ctx->qry.head; } if (!ctx->qry.head) { cgit_print_http_headers(ctx); cgit_print_docstart(ctx); cgit_print_pageheader(ctx); cgit_print_error("Repository seems to be empty"); cgit_print_docend(); return 1; } if (get_sha1(ctx->qry.head, sha1)) { tmp = xstrdup(ctx->qry.head); ctx->qry.head = ctx->repo->defbranch; ctx->page.status = 404; ctx->page.statusmsg = "not found"; cgit_print_http_headers(ctx); cgit_print_docstart(ctx); cgit_print_pageheader(ctx); cgit_print_error(fmt("Invalid branch: %s", tmp)); cgit_print_docend(); return 1; } return 0; } static void process_request(void *cbdata) { struct cgit_context *ctx = cbdata; struct cgit_cmd *cmd; cmd = cgit_get_cmd(ctx); if (!cmd) { ctx->page.title = "cgit error"; cgit_print_http_headers(ctx); cgit_print_docstart(ctx); cgit_print_pageheader(ctx); cgit_print_error("Invalid request"); cgit_print_docend(); return; } if (cmd->want_repo && !ctx->repo) { cgit_print_http_headers(ctx); cgit_print_docstart(ctx); cgit_print_pageheader(ctx); cgit_print_error(fmt("No repository selected")); cgit_print_docend(); return; } if (ctx->repo && prepare_repo_cmd(ctx)) return; if (cmd->want_layout) { cgit_print_http_headers(ctx); cgit_print_docstart(ctx); cgit_print_pageheader(ctx); } cmd->fn(ctx); if (cmd->want_layout) cgit_print_docend(); } int cmp_repos(const void *a, const void *b) { const struct cgit_repo *ra = a, *rb = b; return strcmp(ra->url, rb->url); } char *build_snapshot_setting(int bitmap) { const struct cgit_snapshot_format *f; char *result = xstrdup(""); char *tmp; int len; for (f = cgit_snapshot_formats; f->suffix; f++) { if (f->bit & bitmap) { tmp = result; result = xstrdup(fmt("%s%s ", tmp, f->suffix)); free(tmp); } } len = strlen(result); if (len) result[len - 1] = '\0'; return result; } char *get_first_line(char *txt) { char *t = xstrdup(txt); char *p = strchr(t, '\n'); if (p) *p = '\0'; return t; } void print_repo(FILE *f, struct cgit_repo *repo) { 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); } if (repo->readme) fprintf(f, "repo.readme=%s\n", repo->readme); 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->clone_url) fprintf(f, "repo.clone-url=%s\n", repo->clone_url); 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) fprintf(f, "repo.about-filter=%s\n", repo->about_filter->cmd); if (repo->commit_filter && repo->commit_filter != ctx.cfg.commit_filter) fprintf(f, "repo.commit-filter=%s\n", repo->commit_filter->cmd); if (repo->source_filter && repo->source_filter != ctx.cfg.source_filter) fprintf(f, "repo.source-filter=%s\n", repo->source_filter->cmd); if (repo->snapshots != ctx.cfg.snapshots) { char *tmp = build_snapshot_setting(repo->snapshots); fprintf(f, "repo.snapshots=%s\n", 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)); fprintf(f, "\n"); } 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) { char *locked_rc; int idx; FILE *f; locked_rc = xstrdup(fmt("%s.lock", cached_rc)); f = fopen(locked_rc, "wx"); if (!f) { /* Inform about the error unless the lockfile already existed, * since that only means we've got concurrent requests. */ if (errno != EEXIST) fprintf(stderr, "[cgit] Error opening %s: %s (%d)\n", locked_rc, strerror(errno), errno); return errno; } idx = cgit_repolist.count; scan_tree(path, repo_config); print_repolist(f, &cgit_repolist, idx); if (rename(locked_rc, cached_rc)) fprintf(stderr, "[cgit] Error renaming %s to %s: %s (%d)\n", locked_rc, cached_rc, strerror(errno), errno); fclose(f); return 0; } static void process_cached_repolist(const char *path) { struct stat st; char *cached_rc; time_t age; cached_rc = xstrdup(fmt("%s/rc-%8x", ctx.cfg.cache_root, hash_str(path))); if (stat(cached_rc, &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)) scan_tree(path, repo_config); return; } parse_configfile(cached_rc, 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)) return; /* 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()) return; exit(generate_cached_repolist(path, cached_rc)); } static void cgit_parse_args(int argc, const char **argv) { int i; int scan = 0; for (i = 1; i < argc; i++) { if (!strncmp(argv[i], "--cache=", 8)) { ctx.cfg.cache_root = xstrdup(argv[i]+8); } if (!strcmp(argv[i], "--nocache")) { ctx.cfg.nocache = 1; } if (!strcmp(argv[i], "--nohttp")) { ctx.env.no_http = "1"; } if (!strncmp(argv[i], "--query=", 8)) { ctx.qry.raw = xstrdup(argv[i]+8); } if (!strncmp(argv[i], "--repo=", 7)) { ctx.qry.repo = xstrdup(argv[i]+7); } if (!strncmp(argv[i], "--page=", 7)) { ctx.qry.page = xstrdup(argv[i]+7); } if (!strncmp(argv[i], "--head=", 7)) { ctx.qry.head = xstrdup(argv[i]+7); ctx.qry.has_symref = 1; } if (!strncmp(argv[i], "--sha1=", 7)) { ctx.qry.sha1 = xstrdup(argv[i]+7); ctx.qry.has_sha1 = 1; } if (!strncmp(argv[i], "--ofs=", 6)) { ctx.qry.ofs = atoi(argv[i]+6); } if (!strncmp(argv[i], "--scan-tree=", 12) || !strncmp(argv[i], "--scan-path=", 12)) { /* HACK: the global snapshot bitmask 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(). * BTW: we assume that there'll never be more than * 255 different snapshot formats supported by cgit... */ ctx.cfg.snapshots = 0xFF; scan++; scan_tree(argv[i] + 12, 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() { if (!ctx.repo) return ctx.cfg.cache_root_ttl; if (!ctx.qry.page) return ctx.cfg.cache_repo_ttl; if (ctx.qry.has_symref) return ctx.cfg.cache_dynamic_ttl; if (ctx.qry.has_sha1) return ctx.cfg.cache_static_ttl; return ctx.cfg.cache_repo_ttl; } int main(int argc, const char **argv) { const char *path; char *qry; int err, ttl; prepare_context(&ctx); cgit_repolist.length = 0; cgit_repolist.count = 0; cgit_repolist.repos = NULL; cgit_parse_args(argc, argv); parse_configfile(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. */ if (!ctx.cfg.virtual_root) ctx.cfg.virtual_root = 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) { qry = ctx.qry.raw; ctx.qry.raw = xstrdup(fmt("%s?%s", path, qry)); free(qry); } else ctx.qry.raw = xstrdup(ctx.qry.url); cgit_parse_url(ctx.qry.url); } ttl = calc_ttl(); ctx.page.expires += ttl*60; if (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, &ctx); if (err) cgit_print_error(fmt("Error processing page: %s (%d)", strerror(err), err)); return err; } |