diff options
Diffstat (limited to 'cgit.c')
| -rw-r--r-- | cgit.c | 345 |
1 files changed, 287 insertions, 58 deletions
diff --git a/cgit.c b/cgit.c index 5301840..bd37788 100644 --- a/cgit.c +++ b/cgit.c @@ -17,9 +17,81 @@ 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 == '/') + ctx.repo->readme = xstrdup(value); + else + ctx.repo->readme = xstrdup(fmt("%s/%s", ctx.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, "root-title")) + 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); @@ -31,6 +103,8 @@ void config_cb(const char *name, const char *value) 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")) @@ -49,14 +123,22 @@ void config_cb(const char *name, const char *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")) @@ -67,10 +149,18 @@ void config_cb(const char *name, const char *value) 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")) @@ -79,6 +169,13 @@ void config_cb(const char *name, const char *value) 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")) @@ -95,38 +192,9 @@ void config_cb(const char *name, const char *value) ctx.cfg.clone_prefix = xstrdup(value); else if (!strcmp(name, "local-time")) ctx.cfg.local_time = atoi(value); - else if (!strcmp(name, "repo.group")) - ctx.cfg.repo_group = xstrdup(value); - else if (!strcmp(name, "repo.url")) - ctx.repo = cgit_add_repo(value); - else if (!strcmp(name, "repo.name")) - ctx.repo->name = xstrdup(value); - else if (ctx.repo && !strcmp(name, "repo.path")) - ctx.repo->path = trim_end(value, '/'); - else if (ctx.repo && !strcmp(name, "repo.clone-url")) - ctx.repo->clone_url = xstrdup(value); - else if (ctx.repo && !strcmp(name, "repo.desc")) - ctx.repo->desc = xstrdup(value); - else if (ctx.repo && !strcmp(name, "repo.owner")) - ctx.repo->owner = xstrdup(value); - else if (ctx.repo && !strcmp(name, "repo.defbranch")) - ctx.repo->defbranch = xstrdup(value); - else if (ctx.repo && !strcmp(name, "repo.snapshots")) - ctx.repo->snapshots = ctx.cfg.snapshots & cgit_parse_snapshots_mask(value); /* XXX: &? */ - else if (ctx.repo && !strcmp(name, "repo.enable-log-filecount")) - ctx.repo->enable_log_filecount = ctx.cfg.enable_log_filecount * atoi(value); - else if (ctx.repo && !strcmp(name, "repo.enable-log-linecount")) - ctx.repo->enable_log_linecount = ctx.cfg.enable_log_linecount * atoi(value); - else if (ctx.repo && !strcmp(name, "repo.max-stats")) - ctx.repo->max_stats = cgit_find_stats_period(value, NULL); - else if (ctx.repo && !strcmp(name, "repo.module-link")) - ctx.repo->module_link= xstrdup(value); - else if (ctx.repo && !strcmp(name, "repo.readme") && value != NULL) { - if (*value == '/') - ctx.repo->readme = xstrdup(value); - else - ctx.repo->readme = xstrdup(fmt("%s/%s", ctx.repo->path, value)); - } else if (!strcmp(name, "include")) + else if (!prefixcmp(name, "mimetype.")) + add_mimetype(name + 9, value); + else if (!strcmp(name, "include")) parse_configfile(value, config_cb); } @@ -173,6 +241,11 @@ static void querystring_cb(const char *name, const char *value) } } +char *xstrdupn(const char *str) +{ + return (str ? xstrdup(str) : NULL); +} + static void prepare_context(struct cgit_context *ctx) { memset(ctx, 0, sizeof(ctx)); @@ -184,10 +257,12 @@ static void prepare_context(struct cgit_context *ctx) 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 = "/git-logo.png"; + 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; @@ -200,15 +275,34 @@ static void prepare_context(struct cgit_context *ctx) 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 { @@ -288,6 +382,8 @@ static int prepare_repo_cmd(struct cgit_context *ctx) 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); @@ -344,28 +440,151 @@ int cmp_repos(const void *a, const void *b) return strcmp(ra->url, rb->url); } -void print_repo(struct cgit_repo *repo) +char *build_snapshot_setting(int bitmap) { - printf("repo.url=%s\n", repo->url); - printf("repo.name=%s\n", repo->name); - printf("repo.path=%s\n", repo->path); + 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) - printf("repo.owner=%s\n", repo->owner); - if (repo->desc) - printf("repo.desc=%s\n", repo->desc); + 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) - printf("repo.readme=%s\n", repo->readme); - printf("\n"); + 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(struct cgit_repolist *list) +void print_repolist(FILE *f, struct cgit_repolist *list, int start) { int i; - for(i = 0; i < list->count; i++) - print_repo(&list->repos[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) { @@ -379,6 +598,9 @@ static void cgit_parse_args(int argc, const char **argv) 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); } @@ -399,15 +621,26 @@ static void cgit_parse_args(int argc, const char **argv) if (!strncmp(argv[i], "--ofs=", 6)) { ctx.qry.ofs = atoi(argv[i]+6); } - if (!strncmp(argv[i], "--scan-tree=", 12)) { + 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); + scan_tree(argv[i] + 12, repo_config); } } if (scan) { qsort(cgit_repolist.repos, cgit_repolist.count, sizeof(struct cgit_repo), cmp_repos); - print_repolist(&cgit_repolist); + print_repolist(stdout, &cgit_repolist, 0); exit(0); } } @@ -431,7 +664,6 @@ static int calc_ttl() int main(int argc, const char **argv) { - const char *cgit_config_env = getenv("CGIT_CONFIG"); const char *path; char *qry; int err, ttl; @@ -441,13 +673,8 @@ int main(int argc, const char **argv) cgit_repolist.count = 0; cgit_repolist.repos = NULL; - if (getenv("SCRIPT_NAME")) - ctx.cfg.script_name = xstrdup(getenv("SCRIPT_NAME")); - if (getenv("QUERY_STRING")) - ctx.qry.raw = xstrdup(getenv("QUERY_STRING")); cgit_parse_args(argc, argv); - parse_configfile(cgit_config_env ? cgit_config_env : CGIT_CONFIG, - config_cb); + parse_configfile(ctx.env.cgit_config, config_cb); ctx.repo = NULL; http_parse_querystring(ctx.qry.raw, querystring_cb); @@ -462,7 +689,7 @@ int main(int argc, const char **argv) * urls without the need for rewriterules in the webserver (as * long as PATH_INFO is included in the cache lookup key). */ - path = getenv("PATH_INFO"); + path = ctx.env.path_info; if (!ctx.qry.url && path) { if (path[0] == '/') path++; @@ -472,12 +699,14 @@ int main(int argc, const char **argv) ctx.qry.raw = xstrdup(fmt("%s?%s", path, qry)); free(qry); } else - ctx.qry.raw = ctx.qry.url; + 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, |