| -rw-r--r-- | cgit.c | 389 |
1 files changed, 265 insertions, 124 deletions
@@ -1,231 +1,372 @@ /* 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" + +const char *cgit_version = CGIT_VERSION; + +void config_cb(const char *name, const char *value) +{ + if (!strcmp(name, "root-title")) + ctx.cfg.root_title = xstrdup(value); + else if (!strcmp(name, "css")) + ctx.cfg.css = 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, "snapshots")) + ctx.cfg.snapshots = cgit_parse_snapshots_mask(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, "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-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, "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-commit-count")) + ctx.cfg.max_commit_count = atoi(value); + 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, "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.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")) + parse_configfile(value, config_cb); +} + +static void querystring_cb(const char *name, const char *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")) { + 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); + } +} + +static void prepare_context(struct cgit_context *ctx) +{ + memset(ctx, 0, sizeof(ctx)); + ctx->cfg.agefile = "info/web/last-modified"; + 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_static_ttl = -1; + ctx->cfg.css = "/cgit.css"; + ctx->cfg.logo = "/git-logo.png"; + ctx->cfg.max_commit_count = 50; + ctx->cfg.max_lock_attempts = 5; + ctx->cfg.max_msg_len = 60; + ctx->cfg.max_repodesc_len = 60; + 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.script_name = CGIT_SCRIPT_NAME; + ctx->page.mimetype = "text/html"; + ctx->page.charset = PAGE_ENCODING; + ctx->page.filename = NULL; +} static int cgit_prepare_cache(struct cacheitem *item) { - if (!cgit_repo && cgit_query_repo) { - char *title = fmt("%s - %s", cgit_root_title, "Bad request"); - cgit_print_docstart(title, item); - cgit_print_pageheader(title, 0); - cgit_print_error(fmt("Unknown repo: %s", cgit_query_repo)); + if (!ctx.repo && ctx.qry.repo) { + ctx.page.title = fmt("%s - %s", ctx.cfg.root_title, + "Bad request"); + cgit_print_http_headers(&ctx); + cgit_print_docstart(&ctx); + cgit_print_pageheader(&ctx); + cgit_print_error(fmt("Unknown repo: %s", ctx.qry.repo)); cgit_print_docend(); return 0; } - if (!cgit_repo) { - item->name = xstrdup(fmt("%s/index.html", cgit_cache_root)); - item->ttl = cgit_cache_root_ttl; + if (!ctx.repo) { + item->name = xstrdup(fmt("%s/index.html", ctx.cfg.cache_root)); + item->ttl = ctx.cfg.cache_root_ttl; return 1; } - if (!cgit_cmd) { - item->name = xstrdup(fmt("%s/%s/index.%s.html", cgit_cache_root, - cache_safe_filename(cgit_repo->url), - cache_safe_filename(cgit_querystring))); - item->ttl = cgit_cache_repo_ttl; + if (!ctx.qry.page) { + item->name = xstrdup(fmt("%s/%s/index.%s.html", ctx.cfg.cache_root, + cache_safe_filename(ctx.repo->url), + cache_safe_filename(ctx.qry.raw))); + item->ttl = ctx.cfg.cache_repo_ttl; } else { - item->name = xstrdup(fmt("%s/%s/%s/%s.html", cgit_cache_root, - cache_safe_filename(cgit_repo->url), - cgit_query_page, - cache_safe_filename(cgit_querystring))); - if (cgit_query_has_symref) - item->ttl = cgit_cache_dynamic_ttl; - else if (cgit_query_has_sha1) - item->ttl = cgit_cache_static_ttl; + item->name = xstrdup(fmt("%s/%s/%s/%s.html", ctx.cfg.cache_root, + cache_safe_filename(ctx.repo->url), + ctx.qry.page, + cache_safe_filename(ctx.qry.raw))); + if (ctx.qry.has_symref) + item->ttl = ctx.cfg.cache_dynamic_ttl; + else if (ctx.qry.has_sha1) + item->ttl = ctx.cfg.cache_static_ttl; else - item->ttl = cgit_cache_repo_ttl; + item->ttl = ctx.cfg.cache_repo_ttl; } return 1; } 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 repoinfo *repo) +char *find_default_branch(struct cgit_repo *repo) { struct refmatch info; info.req_ref = repo->defbranch; info.first_ref = NULL; info.match = 0; for_each_branch_ref(find_current_ref, &info); if (info.match) return info.req_ref; else return info.first_ref; } -static void cgit_print_repo_page(struct cacheitem *item) +static int prepare_repo_cmd(struct cgit_context *ctx) { - char *title, *tmp; - int show_search; + char *tmp; unsigned char sha1[20]; - - if (chdir(cgit_repo->path)) { - title = fmt("%s - %s", cgit_root_title, "Bad request"); - cgit_print_docstart(title, item); - cgit_print_pageheader(title, 0); - cgit_print_error(fmt("Unable to scan repository: %s", - strerror(errno))); + 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; + return 1; } + ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc); - title = fmt("%s - %s", cgit_repo->name, cgit_repo->desc); - show_search = 0; - setenv("GIT_DIR", cgit_repo->path, 1); - - if (!cgit_query_head) { - cgit_query_head = xstrdup(find_default_branch(cgit_repo)); - cgit_repo->defbranch = cgit_query_head; + if (!ctx->qry.head) { + ctx->qry.head = xstrdup(find_default_branch(ctx->repo)); + ctx->repo->defbranch = ctx->qry.head; } - if (!cgit_query_head) { - cgit_print_docstart(title, item); - cgit_print_pageheader(title, 0); + 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; + return 1; } - if (get_sha1(cgit_query_head, sha1)) { - tmp = xstrdup(cgit_query_head); - cgit_query_head = cgit_repo->defbranch; - cgit_print_docstart(title, item); - cgit_print_pageheader(title, 0); + if (get_sha1(ctx->qry.head, sha1)) { + tmp = xstrdup(ctx->qry.head); + ctx->qry.head = ctx->repo->defbranch; + 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; + return 1; } - - if ((cgit_cmd == CMD_SNAPSHOT) && cgit_repo->snapshots) { - cgit_print_snapshot(item, cgit_query_head, cgit_query_sha1, - cgit_repobasename(cgit_repo->url), - cgit_query_path, - cgit_repo->snapshots ); - return; + return 0; } - if (cgit_cmd == CMD_PATCH) { - cgit_print_patch(cgit_query_sha1, item); +static void process_request(struct cgit_context *ctx) +{ + struct cgit_cmd *cmd; + + cmd = cgit_get_cmd(ctx); + if (!cmd) { + ctx->page.title = "cgit error"; + ctx->repo = NULL; + cgit_print_http_headers(ctx); + cgit_print_docstart(ctx); + cgit_print_pageheader(ctx); + cgit_print_error("Invalid request"); + cgit_print_docend(); return; } - if (cgit_cmd == CMD_BLOB) { - cgit_print_blob(item, cgit_query_sha1, cgit_query_path); + if (cmd->want_repo && prepare_repo_cmd(ctx)) return; + + if (cmd->want_layout) { + cgit_print_http_headers(ctx); + cgit_print_docstart(ctx); + cgit_print_pageheader(ctx); } - show_search = (cgit_cmd == CMD_LOG); - cgit_print_docstart(title, item); - if (!cgit_cmd) { - cgit_print_pageheader("summary", show_search); - cgit_print_summary(); + cmd->fn(ctx); + + if (cmd->want_layout) cgit_print_docend(); - return; } - cgit_print_pageheader(cgit_query_page, show_search); - - switch(cgit_cmd) { - case CMD_LOG: - cgit_print_log(cgit_query_sha1, cgit_query_ofs, - cgit_max_commit_count, cgit_query_grep, cgit_query_search, - cgit_query_path, 1); - break; - case CMD_TREE: - cgit_print_tree(cgit_query_sha1, cgit_query_path); - break; - case CMD_COMMIT: - cgit_print_commit(cgit_query_sha1); - break; - case CMD_REFS: - cgit_print_refs(); - break; - case CMD_TAG: - cgit_print_tag(cgit_query_sha1); - break; - case CMD_DIFF: - cgit_print_diff(cgit_query_sha1, cgit_query_sha2, cgit_query_path); - break; - default: - cgit_print_error("Invalid request"); - } - cgit_print_docend(); +static long ttl_seconds(long ttl) +{ + if (ttl<0) + return 60 * 60 * 24 * 365; + else + return ttl * 60; } static void cgit_fill_cache(struct cacheitem *item, int use_cache) { - static char buf[PATH_MAX]; int stdout2; - getcwd(buf, sizeof(buf)); - item->st.st_mtime = time(NULL); - if (use_cache) { stdout2 = chk_positive(dup(STDOUT_FILENO), "Preserving STDOUT"); chk_zero(close(STDOUT_FILENO), "Closing STDOUT"); chk_positive(dup2(item->fd, STDOUT_FILENO), "Dup2(cachefile)"); } - if (cgit_repo) - cgit_print_repo_page(item); - else - cgit_print_repolist(item); + ctx.page.modified = time(NULL); + ctx.page.expires = ctx.page.modified + ttl_seconds(item->ttl); + process_request(&ctx); if (use_cache) { chk_zero(close(STDOUT_FILENO), "Close redirected STDOUT"); chk_positive(dup2(stdout2, STDOUT_FILENO), "Restoring original STDOUT"); chk_zero(close(stdout2), "Closing temporary STDOUT"); } - - chdir(buf); } static void cgit_check_cache(struct cacheitem *item) { int i = 0; top: - if (++i > cgit_max_lock_attempts) { + if (++i > ctx.cfg.max_lock_attempts) { die("cgit_refresh_cache: unable to lock %s: %s", item->name, strerror(errno)); } if (!cache_exist(item)) { if (!cache_lock(item)) { sleep(1); goto top; } if (!cache_exist(item)) { cgit_fill_cache(item, 1); cache_unlock(item); } else { cache_cancel_lock(item); } } else if (cache_expired(item) && cache_lock(item)) { if (cache_expired(item)) { @@ -245,74 +386,74 @@ static void cgit_print_cache(struct cacheitem *item) int fd = open(item->name, O_RDONLY); if (fd<0) die("Unable to open cached file %s", item->name); while((i=read(fd, buf, sizeof(buf))) > 0) write(STDOUT_FILENO, buf, i); close(fd); } static void cgit_parse_args(int argc, const char **argv) { int i; for (i = 1; i < argc; i++) { if (!strncmp(argv[i], "--cache=", 8)) { - cgit_cache_root = xstrdup(argv[i]+8); + ctx.cfg.cache_root = xstrdup(argv[i]+8); } if (!strcmp(argv[i], "--nocache")) { - cgit_nocache = 1; + ctx.cfg.nocache = 1; } if (!strncmp(argv[i], "--query=", 8)) { - cgit_querystring = xstrdup(argv[i]+8); + ctx.qry.raw = xstrdup(argv[i]+8); } if (!strncmp(argv[i], "--repo=", 7)) { - cgit_query_repo = xstrdup(argv[i]+7); + ctx.qry.repo = xstrdup(argv[i]+7); } if (!strncmp(argv[i], "--page=", 7)) { - cgit_query_page = xstrdup(argv[i]+7); + ctx.qry.page = xstrdup(argv[i]+7); } if (!strncmp(argv[i], "--head=", 7)) { - cgit_query_head = xstrdup(argv[i]+7); - cgit_query_has_symref = 1; + ctx.qry.head = xstrdup(argv[i]+7); + ctx.qry.has_symref = 1; } if (!strncmp(argv[i], "--sha1=", 7)) { - cgit_query_sha1 = xstrdup(argv[i]+7); - cgit_query_has_sha1 = 1; + ctx.qry.sha1 = xstrdup(argv[i]+7); + ctx.qry.has_sha1 = 1; } if (!strncmp(argv[i], "--ofs=", 6)) { - cgit_query_ofs = atoi(argv[i]+6); + ctx.qry.ofs = atoi(argv[i]+6); } } } int main(int argc, const char **argv) { struct cacheitem item; const char *cgit_config_env = getenv("CGIT_CONFIG"); - htmlfd = STDOUT_FILENO; + prepare_context(&ctx); item.st.st_mtime = time(NULL); cgit_repolist.length = 0; cgit_repolist.count = 0; cgit_repolist.repos = NULL; - cgit_read_config(cgit_config_env ? cgit_config_env : CGIT_CONFIG, - cgit_global_config_cb); - cgit_repo = NULL; + parse_configfile(cgit_config_env ? cgit_config_env : CGIT_CONFIG, + config_cb); + ctx.repo = NULL; if (getenv("SCRIPT_NAME")) - cgit_script_name = xstrdup(getenv("SCRIPT_NAME")); + ctx.cfg.script_name = xstrdup(getenv("SCRIPT_NAME")); if (getenv("QUERY_STRING")) - cgit_querystring = xstrdup(getenv("QUERY_STRING")); + ctx.qry.raw = xstrdup(getenv("QUERY_STRING")); cgit_parse_args(argc, argv); - cgit_parse_query(cgit_querystring, cgit_querystring_cb); + http_parse_querystring(ctx.qry.raw, querystring_cb); if (!cgit_prepare_cache(&item)) return 0; - if (cgit_nocache) { + if (ctx.cfg.nocache) { cgit_fill_cache(&item, 0); } else { cgit_check_cache(&item); cgit_print_cache(&item); } return 0; } |