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| #include "cache.h" | |
| #include "config.h" | |
| #include "repository.h" | |
| #include "refs.h" | |
| #include "pkt-line.h" | |
| #include "object.h" | |
| #include "tag.h" | |
| #include "exec-cmd.h" | |
| #include "run-command.h" | |
| #include "string-list.h" | |
| #include "url.h" | |
| #include "strvec.h" | |
| #include "packfile.h" | |
| #include "object-store.h" | |
| #include "protocol.h" | |
| static const char content_type[] = "Content-Type"; | |
| static const char content_length[] = "Content-Length"; | |
| static const char last_modified[] = "Last-Modified"; | |
| static int getanyfile = 1; | |
| static unsigned long max_request_buffer = 10 * 1024 * 1024; | |
| static struct string_list *query_params; | |
| struct rpc_service { | |
| const char *name; | |
| const char *config_name; | |
| unsigned buffer_input : 1; | |
| signed enabled : 2; | |
| }; | |
| static struct rpc_service rpc_service[] = { | |
| { "upload-pack", "uploadpack", 1, 1 }, | |
| { "receive-pack", "receivepack", 0, -1 }, | |
| }; | |
| static struct string_list *get_parameters(void) | |
| { | |
| if (!query_params) { | |
| const char *query = getenv("QUERY_STRING"); | |
| CALLOC_ARRAY(query_params, 1); | |
| while (query && *query) { | |
| char *name = url_decode_parameter_name(&query); | |
| char *value = url_decode_parameter_value(&query); | |
| struct string_list_item *i; | |
| i = string_list_lookup(query_params, name); | |
| if (!i) | |
| i = string_list_insert(query_params, name); | |
| else | |
| free(i->util); | |
| i->util = value; | |
| } | |
| } | |
| return query_params; | |
| } | |
| static const char *get_parameter(const char *name) | |
| { | |
| struct string_list_item *i; | |
| i = string_list_lookup(get_parameters(), name); | |
| return i ? i->util : NULL; | |
| } | |
| __attribute__((format (printf, 2, 3))) | |
| static void format_write(int fd, const char *fmt, ...) | |
| { | |
| static char buffer[1024]; | |
| va_list args; | |
| unsigned n; | |
| va_start(args, fmt); | |
| n = vsnprintf(buffer, sizeof(buffer), fmt, args); | |
| va_end(args); | |
| if (n >= sizeof(buffer)) | |
| die("protocol error: impossibly long line"); | |
| write_or_die(fd, buffer, n); | |
| } | |
| static void http_status(struct strbuf *hdr, unsigned code, const char *msg) | |
| { | |
| strbuf_addf(hdr, "Status: %u %s\r\n", code, msg); | |
| } | |
| static void hdr_str(struct strbuf *hdr, const char *name, const char *value) | |
| { | |
| strbuf_addf(hdr, "%s: %s\r\n", name, value); | |
| } | |
| static void hdr_int(struct strbuf *hdr, const char *name, uintmax_t value) | |
| { | |
| strbuf_addf(hdr, "%s: %" PRIuMAX "\r\n", name, value); | |
| } | |
| static void hdr_date(struct strbuf *hdr, const char *name, timestamp_t when) | |
| { | |
| const char *value = show_date(when, 0, DATE_MODE(RFC2822)); | |
| hdr_str(hdr, name, value); | |
| } | |
| static void hdr_nocache(struct strbuf *hdr) | |
| { | |
| hdr_str(hdr, "Expires", "Fri, 01 Jan 1980 00:00:00 GMT"); | |
| hdr_str(hdr, "Pragma", "no-cache"); | |
| hdr_str(hdr, "Cache-Control", "no-cache, max-age=0, must-revalidate"); | |
| } | |
| static void hdr_cache_forever(struct strbuf *hdr) | |
| { | |
| timestamp_t now = time(NULL); | |
| hdr_date(hdr, "Date", now); | |
| hdr_date(hdr, "Expires", now + 31536000); | |
| hdr_str(hdr, "Cache-Control", "public, max-age=31536000"); | |
| } | |
| static void end_headers(struct strbuf *hdr) | |
| { | |
| strbuf_add(hdr, "\r\n", 2); | |
| write_or_die(1, hdr->buf, hdr->len); | |
| strbuf_release(hdr); | |
| } | |
| __attribute__((format (printf, 2, 3))) | |
| static NORETURN void not_found(struct strbuf *hdr, const char *err, ...) | |
| { | |
| va_list params; | |
| http_status(hdr, 404, "Not Found"); | |
| hdr_nocache(hdr); | |
| end_headers(hdr); | |
| va_start(params, err); | |
| if (err && *err) | |
| vfprintf(stderr, err, params); | |
| va_end(params); | |
| exit(0); | |
| } | |
| __attribute__((format (printf, 2, 3))) | |
| static NORETURN void forbidden(struct strbuf *hdr, const char *err, ...) | |
| { | |
| va_list params; | |
| http_status(hdr, 403, "Forbidden"); | |
| hdr_nocache(hdr); | |
| end_headers(hdr); | |
| va_start(params, err); | |
| if (err && *err) | |
| vfprintf(stderr, err, params); | |
| va_end(params); | |
| exit(0); | |
| } | |
| static void select_getanyfile(struct strbuf *hdr) | |
| { | |
| if (!getanyfile) | |
| forbidden(hdr, "Unsupported service: getanyfile"); | |
| } | |
| static void send_strbuf(struct strbuf *hdr, | |
| const char *type, struct strbuf *buf) | |
| { | |
| hdr_int(hdr, content_length, buf->len); | |
| hdr_str(hdr, content_type, type); | |
| end_headers(hdr); | |
| write_or_die(1, buf->buf, buf->len); | |
| } | |
| static void send_local_file(struct strbuf *hdr, const char *the_type, | |
| const char *name) | |
| { | |
| char *p = git_pathdup("%s", name); | |
| size_t buf_alloc = 8192; | |
| char *buf = xmalloc(buf_alloc); | |
| int fd; | |
| struct stat sb; | |
| fd = open(p, O_RDONLY); | |
| if (fd < 0) | |
| not_found(hdr, "Cannot open '%s': %s", p, strerror(errno)); | |
| if (fstat(fd, &sb) < 0) | |
| die_errno("Cannot stat '%s'", p); | |
| hdr_int(hdr, content_length, sb.st_size); | |
| hdr_str(hdr, content_type, the_type); | |
| hdr_date(hdr, last_modified, sb.st_mtime); | |
| end_headers(hdr); | |
| for (;;) { | |
| ssize_t n = xread(fd, buf, buf_alloc); | |
| if (n < 0) | |
| die_errno("Cannot read '%s'", p); | |
| if (!n) | |
| break; | |
| write_or_die(1, buf, n); | |
| } | |
| close(fd); | |
| free(buf); | |
| free(p); | |
| } | |
| static void get_text_file(struct strbuf *hdr, char *name) | |
| { | |
| select_getanyfile(hdr); | |
| hdr_nocache(hdr); | |
| send_local_file(hdr, "text/plain", name); | |
| } | |
| static void get_loose_object(struct strbuf *hdr, char *name) | |
| { | |
| select_getanyfile(hdr); | |
| hdr_cache_forever(hdr); | |
| send_local_file(hdr, "application/x-git-loose-object", name); | |
| } | |
| static void get_pack_file(struct strbuf *hdr, char *name) | |
| { | |
| select_getanyfile(hdr); | |
| hdr_cache_forever(hdr); | |
| send_local_file(hdr, "application/x-git-packed-objects", name); | |
| } | |
| static void get_idx_file(struct strbuf *hdr, char *name) | |
| { | |
| select_getanyfile(hdr); | |
| hdr_cache_forever(hdr); | |
| send_local_file(hdr, "application/x-git-packed-objects-toc", name); | |
| } | |
| static void http_config(void) | |
| { | |
| int i, value = 0; | |
| struct strbuf var = STRBUF_INIT; | |
| git_config_get_bool("http.getanyfile", &getanyfile); | |
| git_config_get_ulong("http.maxrequestbuffer", &max_request_buffer); | |
| for (i = 0; i < ARRAY_SIZE(rpc_service); i++) { | |
| struct rpc_service *svc = &rpc_service[i]; | |
| strbuf_addf(&var, "http.%s", svc->config_name); | |
| if (!git_config_get_bool(var.buf, &value)) | |
| svc->enabled = value; | |
| strbuf_reset(&var); | |
| } | |
| strbuf_release(&var); | |
| } | |
| static struct rpc_service *select_service(struct strbuf *hdr, const char *name) | |
| { | |
| const char *svc_name; | |
| struct rpc_service *svc = NULL; | |
| int i; | |
| if (!skip_prefix(name, "git-", &svc_name)) | |
| forbidden(hdr, "Unsupported service: '%s'", name); | |
| for (i = 0; i < ARRAY_SIZE(rpc_service); i++) { | |
| struct rpc_service *s = &rpc_service[i]; | |
| if (!strcmp(s->name, svc_name)) { | |
| svc = s; | |
| break; | |
| } | |
| } | |
| if (!svc) | |
| forbidden(hdr, "Unsupported service: '%s'", name); | |
| if (svc->enabled < 0) { | |
| const char *user = getenv("REMOTE_USER"); | |
| svc->enabled = (user && *user) ? 1 : 0; | |
| } | |
| if (!svc->enabled) | |
| forbidden(hdr, "Service not enabled: '%s'", svc->name); | |
| return svc; | |
| } | |
| static void write_to_child(int out, const unsigned char *buf, ssize_t len, const char *prog_name) | |
| { | |
| if (write_in_full(out, buf, len) < 0) | |
| die("unable to write to '%s'", prog_name); | |
| } | |
| /* | |
| * This is basically strbuf_read(), except that if we | |
| * hit max_request_buffer we die (we'd rather reject a | |
| * maliciously large request than chew up infinite memory). | |
| */ | |
| static ssize_t read_request_eof(int fd, unsigned char **out) | |
| { | |
| size_t len = 0, alloc = 8192; | |
| unsigned char *buf = xmalloc(alloc); | |
| if (max_request_buffer < alloc) | |
| max_request_buffer = alloc; | |
| while (1) { | |
| ssize_t cnt; | |
| cnt = read_in_full(fd, buf + len, alloc - len); | |
| if (cnt < 0) { | |
| free(buf); | |
| return -1; | |
| } | |
| /* partial read from read_in_full means we hit EOF */ | |
| len += cnt; | |
| if (len < alloc) { | |
| *out = buf; | |
| return len; | |
| } | |
| /* otherwise, grow and try again (if we can) */ | |
| if (alloc == max_request_buffer) | |
| die("request was larger than our maximum size (%lu);" | |
| " try setting GIT_HTTP_MAX_REQUEST_BUFFER", | |
| max_request_buffer); | |
| alloc = alloc_nr(alloc); | |
| if (alloc > max_request_buffer) | |
| alloc = max_request_buffer; | |
| REALLOC_ARRAY(buf, alloc); | |
| } | |
| } | |
| static ssize_t read_request_fixed_len(int fd, ssize_t req_len, unsigned char **out) | |
| { | |
| unsigned char *buf = NULL; | |
| ssize_t cnt = 0; | |
| if (max_request_buffer < req_len) { | |
| die("request was larger than our maximum size (%lu): " | |
| "%" PRIuMAX "; try setting GIT_HTTP_MAX_REQUEST_BUFFER", | |
| max_request_buffer, (uintmax_t)req_len); | |
| } | |
| buf = xmalloc(req_len); | |
| cnt = read_in_full(fd, buf, req_len); | |
| if (cnt < 0) { | |
| free(buf); | |
| return -1; | |
| } | |
| *out = buf; | |
| return cnt; | |
| } | |
| static ssize_t get_content_length(void) | |
| { | |
| ssize_t val = -1; | |
| const char *str = getenv("CONTENT_LENGTH"); | |
| if (str && *str && !git_parse_ssize_t(str, &val)) | |
| die("failed to parse CONTENT_LENGTH: %s", str); | |
| return val; | |
| } | |
| static ssize_t read_request(int fd, unsigned char **out, ssize_t req_len) | |
| { | |
| if (req_len < 0) | |
| return read_request_eof(fd, out); | |
| else | |
| return read_request_fixed_len(fd, req_len, out); | |
| } | |
| static void inflate_request(const char *prog_name, int out, int buffer_input, ssize_t req_len) | |
| { | |
| git_zstream stream; | |
| unsigned char *full_request = NULL; | |
| unsigned char in_buf[8192]; | |
| unsigned char out_buf[8192]; | |
| unsigned long cnt = 0; | |
| int req_len_defined = req_len >= 0; | |
| size_t req_remaining_len = req_len; | |
| memset(&stream, 0, sizeof(stream)); | |
| git_inflate_init_gzip_only(&stream); | |
| while (1) { | |
| ssize_t n; | |
| if (buffer_input) { | |
| if (full_request) | |
| n = 0; /* nothing left to read */ | |
| else | |
| n = read_request(0, &full_request, req_len); | |
| stream.next_in = full_request; | |
| } else { | |
| ssize_t buffer_len; | |
| if (req_len_defined && req_remaining_len <= sizeof(in_buf)) | |
| buffer_len = req_remaining_len; | |
| else | |
| buffer_len = sizeof(in_buf); | |
| n = xread(0, in_buf, buffer_len); | |
| stream.next_in = in_buf; | |
| if (req_len_defined && n > 0) | |
| req_remaining_len -= n; | |
| } | |
| if (n <= 0) | |
| die("request ended in the middle of the gzip stream"); | |
| stream.avail_in = n; | |
| while (0 < stream.avail_in) { | |
| int ret; | |
| stream.next_out = out_buf; | |
| stream.avail_out = sizeof(out_buf); | |
| ret = git_inflate(&stream, Z_NO_FLUSH); | |
| if (ret != Z_OK && ret != Z_STREAM_END) | |
| die("zlib error inflating request, result %d", ret); | |
| n = stream.total_out - cnt; | |
| write_to_child(out, out_buf, stream.total_out - cnt, prog_name); | |
| cnt = stream.total_out; | |
| if (ret == Z_STREAM_END) | |
| goto done; | |
| } | |
| } | |
| done: | |
| git_inflate_end(&stream); | |
| close(out); | |
| free(full_request); | |
| } | |
| static void copy_request(const char *prog_name, int out, ssize_t req_len) | |
| { | |
| unsigned char *buf; | |
| ssize_t n = read_request(0, &buf, req_len); | |
| if (n < 0) | |
| die_errno("error reading request body"); | |
| write_to_child(out, buf, n, prog_name); | |
| close(out); | |
| free(buf); | |
| } | |
| static void pipe_fixed_length(const char *prog_name, int out, size_t req_len) | |
| { | |
| unsigned char buf[8192]; | |
| size_t remaining_len = req_len; | |
| while (remaining_len > 0) { | |
| size_t chunk_length = remaining_len > sizeof(buf) ? sizeof(buf) : remaining_len; | |
| ssize_t n = xread(0, buf, chunk_length); | |
| if (n < 0) | |
| die_errno("Reading request failed"); | |
| write_to_child(out, buf, n, prog_name); | |
| remaining_len -= n; | |
| } | |
| close(out); | |
| } | |
| static void run_service(const char **argv, int buffer_input) | |
| { | |
| const char *encoding = getenv("HTTP_CONTENT_ENCODING"); | |
| const char *user = getenv("REMOTE_USER"); | |
| const char *host = getenv("REMOTE_ADDR"); | |
| int gzipped_request = 0; | |
| struct child_process cld = CHILD_PROCESS_INIT; | |
| ssize_t req_len = get_content_length(); | |
| if (encoding && !strcmp(encoding, "gzip")) | |
| gzipped_request = 1; | |
| else if (encoding && !strcmp(encoding, "x-gzip")) | |
| gzipped_request = 1; | |
| if (!user || !*user) | |
| user = "anonymous"; | |
| if (!host || !*host) | |
| host = "(none)"; | |
| if (!getenv("GIT_COMMITTER_NAME")) | |
| strvec_pushf(&cld.env_array, "GIT_COMMITTER_NAME=%s", user); | |
| if (!getenv("GIT_COMMITTER_EMAIL")) | |
| strvec_pushf(&cld.env_array, | |
| "GIT_COMMITTER_EMAIL=%s@http.%s", user, host); | |
| cld.argv = argv; | |
| if (buffer_input || gzipped_request || req_len >= 0) | |
| cld.in = -1; | |
| cld.git_cmd = 1; | |
| cld.clean_on_exit = 1; | |
| cld.wait_after_clean = 1; | |
| if (start_command(&cld)) | |
| exit(1); | |
| close(1); | |
| if (gzipped_request) | |
| inflate_request(argv[0], cld.in, buffer_input, req_len); | |
| else if (buffer_input) | |
| copy_request(argv[0], cld.in, req_len); | |
| else if (req_len >= 0) | |
| pipe_fixed_length(argv[0], cld.in, req_len); | |
| else | |
| close(0); | |
| if (finish_command(&cld)) | |
| exit(1); | |
| } | |
| static int show_text_ref(const char *name, const struct object_id *oid, | |
| int flag, void *cb_data) | |
| { | |
| const char *name_nons = strip_namespace(name); | |
| struct strbuf *buf = cb_data; | |
| struct object *o = parse_object(the_repository, oid); | |
| if (!o) | |
| return 0; | |
| strbuf_addf(buf, "%s\t%s\n", oid_to_hex(oid), name_nons); | |
| if (o->type == OBJ_TAG) { | |
| o = deref_tag(the_repository, o, name, 0); | |
| if (!o) | |
| return 0; | |
| strbuf_addf(buf, "%s\t%s^{}\n", oid_to_hex(&o->oid), | |
| name_nons); | |
| } | |
| return 0; | |
| } | |
| static void get_info_refs(struct strbuf *hdr, char *arg) | |
| { | |
| const char *service_name = get_parameter("service"); | |
| struct strbuf buf = STRBUF_INIT; | |
| hdr_nocache(hdr); | |
| if (service_name) { | |
| const char *argv[] = {NULL /* service name */, | |
| "--stateless-rpc", "--advertise-refs", | |
| ".", NULL}; | |
| struct rpc_service *svc = select_service(hdr, service_name); | |
| strbuf_addf(&buf, "application/x-git-%s-advertisement", | |
| svc->name); | |
| hdr_str(hdr, content_type, buf.buf); | |
| end_headers(hdr); | |
| if (determine_protocol_version_server() != protocol_v2) { | |
| packet_write_fmt(1, "# service=git-%s\n", svc->name); | |
| packet_flush(1); | |
| } | |
| argv[0] = svc->name; | |
| run_service(argv, 0); | |
| } else { | |
| select_getanyfile(hdr); | |
| for_each_namespaced_ref(show_text_ref, &buf); | |
| send_strbuf(hdr, "text/plain", &buf); | |
| } | |
| strbuf_release(&buf); | |
| } | |
| static int show_head_ref(const char *refname, const struct object_id *oid, | |
| int flag, void *cb_data) | |
| { | |
| struct strbuf *buf = cb_data; | |
| if (flag & REF_ISSYMREF) { | |
| const char *target = resolve_ref_unsafe(refname, | |
| RESOLVE_REF_READING, | |
| NULL, NULL); | |
| if (target) | |
| strbuf_addf(buf, "ref: %s\n", strip_namespace(target)); | |
| } else { | |
| strbuf_addf(buf, "%s\n", oid_to_hex(oid)); | |
| } | |
| return 0; | |
| } | |
| static void get_head(struct strbuf *hdr, char *arg) | |
| { | |
| struct strbuf buf = STRBUF_INIT; | |
| select_getanyfile(hdr); | |
| head_ref_namespaced(show_head_ref, &buf); | |
| send_strbuf(hdr, "text/plain", &buf); | |
| strbuf_release(&buf); | |
| } | |
| static void get_info_packs(struct strbuf *hdr, char *arg) | |
| { | |
| size_t objdirlen = strlen(get_object_directory()); | |
| struct strbuf buf = STRBUF_INIT; | |
| struct packed_git *p; | |
| size_t cnt = 0; | |
| select_getanyfile(hdr); | |
| for (p = get_all_packs(the_repository); p; p = p->next) { | |
| if (p->pack_local) | |
| cnt++; | |
| } | |
| strbuf_grow(&buf, cnt * 53 + 2); | |
| for (p = get_all_packs(the_repository); p; p = p->next) { | |
| if (p->pack_local) | |
| strbuf_addf(&buf, "P %s\n", p->pack_name + objdirlen + 6); | |
| } | |
| strbuf_addch(&buf, '\n'); | |
| hdr_nocache(hdr); | |
| send_strbuf(hdr, "text/plain; charset=utf-8", &buf); | |
| strbuf_release(&buf); | |
| } | |
| static void check_content_type(struct strbuf *hdr, const char *accepted_type) | |
| { | |
| const char *actual_type = getenv("CONTENT_TYPE"); | |
| if (!actual_type) | |
| actual_type = ""; | |
| if (strcmp(actual_type, accepted_type)) { | |
| http_status(hdr, 415, "Unsupported Media Type"); | |
| hdr_nocache(hdr); | |
| end_headers(hdr); | |
| format_write(1, | |
| "Expected POST with Content-Type '%s'," | |
| " but received '%s' instead.\n", | |
| accepted_type, actual_type); | |
| exit(0); | |
| } | |
| } | |
| static void service_rpc(struct strbuf *hdr, char *service_name) | |
| { | |
| const char *argv[] = {NULL, "--stateless-rpc", ".", NULL}; | |
| struct rpc_service *svc = select_service(hdr, service_name); | |
| struct strbuf buf = STRBUF_INIT; | |
| strbuf_reset(&buf); | |
| strbuf_addf(&buf, "application/x-git-%s-request", svc->name); | |
| check_content_type(hdr, buf.buf); | |
| hdr_nocache(hdr); | |
| strbuf_reset(&buf); | |
| strbuf_addf(&buf, "application/x-git-%s-result", svc->name); | |
| hdr_str(hdr, content_type, buf.buf); | |
| end_headers(hdr); | |
| argv[0] = svc->name; | |
| run_service(argv, svc->buffer_input); | |
| strbuf_release(&buf); | |
| } | |
| static int dead; | |
| static NORETURN void die_webcgi(const char *err, va_list params) | |
| { | |
| if (dead <= 1) { | |
| struct strbuf hdr = STRBUF_INIT; | |
| vreportf("fatal: ", err, params); | |
| http_status(&hdr, 500, "Internal Server Error"); | |
| hdr_nocache(&hdr); | |
| end_headers(&hdr); | |
| } | |
| exit(0); /* we successfully reported a failure ;-) */ | |
| } | |
| static int die_webcgi_recursing(void) | |
| { | |
| return dead++ > 1; | |
| } | |
| static char* getdir(void) | |
| { | |
| struct strbuf buf = STRBUF_INIT; | |
| char *pathinfo = getenv("PATH_INFO"); | |
| char *root = getenv("GIT_PROJECT_ROOT"); | |
| char *path = getenv("PATH_TRANSLATED"); | |
| if (root && *root) { | |
| if (!pathinfo || !*pathinfo) | |
| die("GIT_PROJECT_ROOT is set but PATH_INFO is not"); | |
| if (daemon_avoid_alias(pathinfo)) | |
| die("'%s': aliased", pathinfo); | |
| end_url_with_slash(&buf, root); | |
| if (pathinfo[0] == '/') | |
| pathinfo++; | |
| strbuf_addstr(&buf, pathinfo); | |
| return strbuf_detach(&buf, NULL); | |
| } else if (path && *path) { | |
| return xstrdup(path); | |
| } else | |
| die("No GIT_PROJECT_ROOT or PATH_TRANSLATED from server"); | |
| return NULL; | |
| } | |
| static struct service_cmd { | |
| const char *method; | |
| const char *pattern; | |
| void (*imp)(struct strbuf *, char *); | |
| } services[] = { | |
| {"GET", "/HEAD$", get_head}, | |
| {"GET", "/info/refs$", get_info_refs}, | |
| {"GET", "/objects/info/alternates$", get_text_file}, | |
| {"GET", "/objects/info/http-alternates$", get_text_file}, | |
| {"GET", "/objects/info/packs$", get_info_packs}, | |
| {"GET", "/objects/[0-9a-f]{2}/[0-9a-f]{38}$", get_loose_object}, | |
| {"GET", "/objects/[0-9a-f]{2}/[0-9a-f]{62}$", get_loose_object}, | |
| {"GET", "/objects/pack/pack-[0-9a-f]{40}\\.pack$", get_pack_file}, | |
| {"GET", "/objects/pack/pack-[0-9a-f]{64}\\.pack$", get_pack_file}, | |
| {"GET", "/objects/pack/pack-[0-9a-f]{40}\\.idx$", get_idx_file}, | |
| {"GET", "/objects/pack/pack-[0-9a-f]{64}\\.idx$", get_idx_file}, | |
| {"POST", "/git-upload-pack$", service_rpc}, | |
| {"POST", "/git-receive-pack$", service_rpc} | |
| }; | |
| static int bad_request(struct strbuf *hdr, const struct service_cmd *c) | |
| { | |
| const char *proto = getenv("SERVER_PROTOCOL"); | |
| if (proto && !strcmp(proto, "HTTP/1.1")) { | |
| http_status(hdr, 405, "Method Not Allowed"); | |
| hdr_str(hdr, "Allow", | |
| !strcmp(c->method, "GET") ? "GET, HEAD" : c->method); | |
| } else | |
| http_status(hdr, 400, "Bad Request"); | |
| hdr_nocache(hdr); | |
| end_headers(hdr); | |
| return 0; | |
| } | |
| int cmd_main(int argc, const char **argv) | |
| { | |
| char *method = getenv("REQUEST_METHOD"); | |
| char *dir; | |
| struct service_cmd *cmd = NULL; | |
| char *cmd_arg = NULL; | |
| int i; | |
| struct strbuf hdr = STRBUF_INIT; | |
| set_die_routine(die_webcgi); | |
| set_die_is_recursing_routine(die_webcgi_recursing); | |
| if (!method) | |
| die("No REQUEST_METHOD from server"); | |
| if (!strcmp(method, "HEAD")) | |
| method = "GET"; | |
| dir = getdir(); | |
| for (i = 0; i < ARRAY_SIZE(services); i++) { | |
| struct service_cmd *c = &services[i]; | |
| regex_t re; | |
| regmatch_t out[1]; | |
| if (regcomp(&re, c->pattern, REG_EXTENDED)) | |
| die("Bogus regex in service table: %s", c->pattern); | |
| if (!regexec(&re, dir, 1, out, 0)) { | |
| size_t n; | |
| if (strcmp(method, c->method)) | |
| return bad_request(&hdr, c); | |
| cmd = c; | |
| n = out[0].rm_eo - out[0].rm_so; | |
| cmd_arg = xmemdupz(dir + out[0].rm_so + 1, n - 1); | |
| dir[out[0].rm_so] = 0; | |
| break; | |
| } | |
| regfree(&re); | |
| } | |
| if (!cmd) | |
| not_found(&hdr, "Request not supported: '%s'", dir); | |
| setup_path(); | |
| if (!enter_repo(dir, 0)) | |
| not_found(&hdr, "Not a git repository: '%s'", dir); | |
| if (!getenv("GIT_HTTP_EXPORT_ALL") && | |
| access("git-daemon-export-ok", F_OK) ) | |
| not_found(&hdr, "Repository not exported: '%s'", dir); | |
| http_config(); | |
| max_request_buffer = git_env_ulong("GIT_HTTP_MAX_REQUEST_BUFFER", | |
| max_request_buffer); | |
| cmd->imp(&hdr, cmd_arg); | |
| return 0; | |
| } |