diff options
Diffstat (limited to 'www/git.causal.agency/cgit/cgit.c')
| -rw-r--r-- | www/git.causal.agency/cgit/cgit.c | 1105 |
1 files changed, 0 insertions, 1105 deletions
diff --git a/www/git.causal.agency/cgit/cgit.c b/www/git.causal.agency/cgit/cgit.c deleted file mode 100644 index 642cac77..00000000 --- a/www/git.causal.agency/cgit/cgit.c +++ /dev/null @@ -1,1105 +0,0 @@ -/* 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; - -__attribute__((constructor)) -static void constructor_environment() -{ - /* 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"); -} - -static void add_mimetype(const char *name, const char *value) -{ - struct string_list_item *item; - - item = string_list_insert(&ctx.cfg.mimetypes, 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, "extra-head-content")) - repo->extra_head_content = xstrdup(value); - else if (!strcmp(name, "snapshots")) - repo->snapshots = ctx.cfg.snapshots & cgit_parse_snapshots_mask(value); - else if (!strcmp(name, "enable-blame")) - repo->enable_blame = atoi(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, "snapshot-prefix")) - repo->snapshot_prefix = 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")) - 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, "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, "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.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.oid = xstrdup(value); - ctx.qry.has_oid = 1; - } else if (!strcmp(name, "id2")) { - ctx.qry.oid2 = xstrdup(value); - ctx.qry.has_oid = 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.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 = NULL; - 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; - string_list_init(&ctx.cfg.mimetypes, 1); - 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, 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 void prepare_repo_env(int *nongit) -{ - /* The path to the git repository. */ - setenv("GIT_DIR", ctx.repo->path, 1); - - /* 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); - load_display_notes(NULL); -} - -static int prepare_repo_cmd(int nongit) -{ - struct object_id oid; - int rc; - - 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 : "", - cgit_currentfullurl(), - 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]; - ssize_t len; - - open_auth_filter("authenticate-post"); - len = ctx.env.content_length; - if (len > MAX_AUTHENTICATION_POST_BYTES) - len = MAX_AUTHENTICATION_POST_BYTES; - if ((len = read(STDIN_FILENO, buffer, len)) < 0) - die_errno("Could not read POST from stdin"); - if (fwrite(buffer, 1, len, stdout) < len) - 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; - int nongit = 0; - - /* 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; - } - - if (ctx.repo) - prepare_repo_env(&nongit); - - 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(nongit)) - 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 (cgit_snapshot_format_bit(f) & 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->extra_head_content) - fprintf(f, "repo.extra-head-content=%s\n", repo->extra_head_content); - 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-blame=%d\n", - repo->enable_blame); - 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->snapshot_prefix) - fprintf(f, "repo.snapshot-prefix=%s\n", repo->snapshot_prefix); - 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); -#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], "--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], "--oid=", &arg)) { - ctx.qry.oid = xstrdup(arg); - ctx.qry.has_oid = 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_oid) - 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; - - 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.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; -} |