| #include "cache.h" |
| #include "repository.h" |
| #include "commit.h" |
| #include "tag.h" |
| #include "blob.h" |
| #include "http.h" |
| #include "refs.h" |
| #include "diff.h" |
| #include "revision.h" |
| #include "exec-cmd.h" |
| #include "remote.h" |
| #include "list-objects.h" |
| #include "sigchain.h" |
| #include "strvec.h" |
| #include "packfile.h" |
| #include "object-store.h" |
| #include "commit-reach.h" |
| |
| #ifdef EXPAT_NEEDS_XMLPARSE_H |
| #include <xmlparse.h> |
| #else |
| #include <expat.h> |
| #endif |
| |
| static const char http_push_usage[] = |
| "git http-push [--all] [--dry-run] [--force] [--verbose] <remote> [<head>...]\n"; |
| |
| #ifndef XML_STATUS_OK |
| enum XML_Status { |
| XML_STATUS_OK = 1, |
| XML_STATUS_ERROR = 0 |
| }; |
| #define XML_STATUS_OK 1 |
| #define XML_STATUS_ERROR 0 |
| #endif |
| |
| #define PREV_BUF_SIZE 4096 |
| |
| /* DAV methods */ |
| #define DAV_LOCK "LOCK" |
| #define DAV_MKCOL "MKCOL" |
| #define DAV_MOVE "MOVE" |
| #define DAV_PROPFIND "PROPFIND" |
| #define DAV_PUT "PUT" |
| #define DAV_UNLOCK "UNLOCK" |
| #define DAV_DELETE "DELETE" |
| |
| /* DAV lock flags */ |
| #define DAV_PROP_LOCKWR (1u << 0) |
| #define DAV_PROP_LOCKEX (1u << 1) |
| #define DAV_LOCK_OK (1u << 2) |
| |
| /* DAV XML properties */ |
| #define DAV_CTX_LOCKENTRY ".multistatus.response.propstat.prop.supportedlock.lockentry" |
| #define DAV_CTX_LOCKTYPE_WRITE ".multistatus.response.propstat.prop.supportedlock.lockentry.locktype.write" |
| #define DAV_CTX_LOCKTYPE_EXCLUSIVE ".multistatus.response.propstat.prop.supportedlock.lockentry.lockscope.exclusive" |
| #define DAV_ACTIVELOCK_OWNER ".prop.lockdiscovery.activelock.owner.href" |
| #define DAV_ACTIVELOCK_TIMEOUT ".prop.lockdiscovery.activelock.timeout" |
| #define DAV_ACTIVELOCK_TOKEN ".prop.lockdiscovery.activelock.locktoken.href" |
| #define DAV_PROPFIND_RESP ".multistatus.response" |
| #define DAV_PROPFIND_NAME ".multistatus.response.href" |
| #define DAV_PROPFIND_COLLECTION ".multistatus.response.propstat.prop.resourcetype.collection" |
| |
| /* DAV request body templates */ |
| #define PROPFIND_SUPPORTEDLOCK_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:propfind xmlns:D=\"DAV:\">\n<D:prop xmlns:R=\"%s\">\n<D:supportedlock/>\n</D:prop>\n</D:propfind>" |
| #define PROPFIND_ALL_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:propfind xmlns:D=\"DAV:\">\n<D:allprop/>\n</D:propfind>" |
| #define LOCK_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:lockinfo xmlns:D=\"DAV:\">\n<D:lockscope><D:exclusive/></D:lockscope>\n<D:locktype><D:write/></D:locktype>\n<D:owner>\n<D:href>mailto:%s</D:href>\n</D:owner>\n</D:lockinfo>" |
| |
| #define LOCK_TIME 600 |
| #define LOCK_REFRESH 30 |
| |
| /* Remember to update object flag allocation in object.h */ |
| #define LOCAL (1u<<11) |
| #define REMOTE (1u<<12) |
| #define FETCHING (1u<<13) |
| #define PUSHING (1u<<14) |
| |
| /* We allow "recursive" symbolic refs. Only within reason, though */ |
| #define MAXDEPTH 5 |
| |
| static int pushing; |
| static int aborted; |
| static signed char remote_dir_exists[256]; |
| |
| static int push_verbosely; |
| static int push_all = MATCH_REFS_NONE; |
| static int force_all; |
| static int dry_run; |
| static int helper_status; |
| |
| static struct object_list *objects; |
| |
| struct repo { |
| char *url; |
| char *path; |
| int path_len; |
| int has_info_refs; |
| int can_update_info_refs; |
| int has_info_packs; |
| struct packed_git *packs; |
| struct remote_lock *locks; |
| }; |
| |
| static struct repo *repo; |
| |
| enum transfer_state { |
| NEED_FETCH, |
| RUN_FETCH_LOOSE, |
| RUN_FETCH_PACKED, |
| NEED_PUSH, |
| RUN_MKCOL, |
| RUN_PUT, |
| RUN_MOVE, |
| ABORTED, |
| COMPLETE |
| }; |
| |
| struct transfer_request { |
| struct object *obj; |
| struct packed_git *target; |
| char *url; |
| char *dest; |
| struct remote_lock *lock; |
| struct curl_slist *headers; |
| struct buffer buffer; |
| enum transfer_state state; |
| CURLcode curl_result; |
| char errorstr[CURL_ERROR_SIZE]; |
| long http_code; |
| void *userData; |
| struct active_request_slot *slot; |
| struct transfer_request *next; |
| }; |
| |
| static struct transfer_request *request_queue_head; |
| |
| struct xml_ctx { |
| char *name; |
| int len; |
| char *cdata; |
| void (*userFunc)(struct xml_ctx *ctx, int tag_closed); |
| void *userData; |
| }; |
| |
| struct remote_lock { |
| char *url; |
| char *owner; |
| char *token; |
| char tmpfile_suffix[GIT_MAX_HEXSZ + 1]; |
| time_t start_time; |
| long timeout; |
| int refreshing; |
| struct remote_lock *next; |
| }; |
| |
| /* Flags that control remote_ls processing */ |
| #define PROCESS_FILES (1u << 0) |
| #define PROCESS_DIRS (1u << 1) |
| #define RECURSIVE (1u << 2) |
| |
| /* Flags that remote_ls passes to callback functions */ |
| #define IS_DIR (1u << 0) |
| |
| struct remote_ls_ctx { |
| char *path; |
| void (*userFunc)(struct remote_ls_ctx *ls); |
| void *userData; |
| int flags; |
| char *dentry_name; |
| int dentry_flags; |
| struct remote_ls_ctx *parent; |
| }; |
| |
| /* get_dav_token_headers options */ |
| enum dav_header_flag { |
| DAV_HEADER_IF = (1u << 0), |
| DAV_HEADER_LOCK = (1u << 1), |
| DAV_HEADER_TIMEOUT = (1u << 2) |
| }; |
| |
| static char *xml_entities(const char *s) |
| { |
| struct strbuf buf = STRBUF_INIT; |
| strbuf_addstr_xml_quoted(&buf, s); |
| return strbuf_detach(&buf, NULL); |
| } |
| |
| static void curl_setup_http_get(CURL *curl, const char *url, |
| const char *custom_req) |
| { |
| curl_easy_setopt(curl, CURLOPT_HTTPGET, 1); |
| curl_easy_setopt(curl, CURLOPT_URL, url); |
| curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, custom_req); |
| curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fwrite_null); |
| } |
| |
| static void curl_setup_http(CURL *curl, const char *url, |
| const char *custom_req, struct buffer *buffer, |
| curl_write_callback write_fn) |
| { |
| curl_easy_setopt(curl, CURLOPT_PUT, 1); |
| curl_easy_setopt(curl, CURLOPT_URL, url); |
| curl_easy_setopt(curl, CURLOPT_INFILE, buffer); |
| curl_easy_setopt(curl, CURLOPT_INFILESIZE, buffer->buf.len); |
| curl_easy_setopt(curl, CURLOPT_READFUNCTION, fread_buffer); |
| curl_easy_setopt(curl, CURLOPT_IOCTLFUNCTION, ioctl_buffer); |
| curl_easy_setopt(curl, CURLOPT_IOCTLDATA, buffer); |
| curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_fn); |
| curl_easy_setopt(curl, CURLOPT_NOBODY, 0); |
| curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, custom_req); |
| curl_easy_setopt(curl, CURLOPT_UPLOAD, 1); |
| } |
| |
| static struct curl_slist *get_dav_token_headers(struct remote_lock *lock, enum dav_header_flag options) |
| { |
| struct strbuf buf = STRBUF_INIT; |
| struct curl_slist *dav_headers = http_copy_default_headers(); |
| |
| if (options & DAV_HEADER_IF) { |
| strbuf_addf(&buf, "If: (<%s>)", lock->token); |
| dav_headers = curl_slist_append(dav_headers, buf.buf); |
| strbuf_reset(&buf); |
| } |
| if (options & DAV_HEADER_LOCK) { |
| strbuf_addf(&buf, "Lock-Token: <%s>", lock->token); |
| dav_headers = curl_slist_append(dav_headers, buf.buf); |
| strbuf_reset(&buf); |
| } |
| if (options & DAV_HEADER_TIMEOUT) { |
| strbuf_addf(&buf, "Timeout: Second-%ld", lock->timeout); |
| dav_headers = curl_slist_append(dav_headers, buf.buf); |
| strbuf_reset(&buf); |
| } |
| strbuf_release(&buf); |
| |
| return dav_headers; |
| } |
| |
| static void finish_request(struct transfer_request *request); |
| static void release_request(struct transfer_request *request); |
| |
| static void process_response(void *callback_data) |
| { |
| struct transfer_request *request = |
| (struct transfer_request *)callback_data; |
| |
| finish_request(request); |
| } |
| |
| static void start_fetch_loose(struct transfer_request *request) |
| { |
| struct active_request_slot *slot; |
| struct http_object_request *obj_req; |
| |
| obj_req = new_http_object_request(repo->url, &request->obj->oid); |
| if (!obj_req) { |
| request->state = ABORTED; |
| return; |
| } |
| |
| slot = obj_req->slot; |
| slot->callback_func = process_response; |
| slot->callback_data = request; |
| request->slot = slot; |
| request->userData = obj_req; |
| |
| /* Try to get the request started, abort the request on error */ |
| request->state = RUN_FETCH_LOOSE; |
| if (!start_active_slot(slot)) { |
| fprintf(stderr, "Unable to start GET request\n"); |
| repo->can_update_info_refs = 0; |
| release_http_object_request(obj_req); |
| release_request(request); |
| } |
| } |
| |
| static void start_mkcol(struct transfer_request *request) |
| { |
| char *hex = oid_to_hex(&request->obj->oid); |
| struct active_request_slot *slot; |
| |
| request->url = get_remote_object_url(repo->url, hex, 1); |
| |
| slot = get_active_slot(); |
| slot->callback_func = process_response; |
| slot->callback_data = request; |
| curl_setup_http_get(slot->curl, request->url, DAV_MKCOL); |
| curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr); |
| |
| if (start_active_slot(slot)) { |
| request->slot = slot; |
| request->state = RUN_MKCOL; |
| } else { |
| request->state = ABORTED; |
| FREE_AND_NULL(request->url); |
| } |
| } |
| |
| static void start_fetch_packed(struct transfer_request *request) |
| { |
| struct packed_git *target; |
| |
| struct transfer_request *check_request = request_queue_head; |
| struct http_pack_request *preq; |
| |
| target = find_sha1_pack(request->obj->oid.hash, repo->packs); |
| if (!target) { |
| fprintf(stderr, "Unable to fetch %s, will not be able to update server info refs\n", oid_to_hex(&request->obj->oid)); |
| repo->can_update_info_refs = 0; |
| release_request(request); |
| return; |
| } |
| close_pack_index(target); |
| request->target = target; |
| |
| fprintf(stderr, "Fetching pack %s\n", |
| hash_to_hex(target->hash)); |
| fprintf(stderr, " which contains %s\n", oid_to_hex(&request->obj->oid)); |
| |
| preq = new_http_pack_request(target->hash, repo->url); |
| if (!preq) { |
| repo->can_update_info_refs = 0; |
| return; |
| } |
| |
| /* Make sure there isn't another open request for this pack */ |
| while (check_request) { |
| if (check_request->state == RUN_FETCH_PACKED && |
| !strcmp(check_request->url, preq->url)) { |
| release_http_pack_request(preq); |
| release_request(request); |
| return; |
| } |
| check_request = check_request->next; |
| } |
| |
| preq->slot->callback_func = process_response; |
| preq->slot->callback_data = request; |
| request->slot = preq->slot; |
| request->userData = preq; |
| |
| /* Try to get the request started, abort the request on error */ |
| request->state = RUN_FETCH_PACKED; |
| if (!start_active_slot(preq->slot)) { |
| fprintf(stderr, "Unable to start GET request\n"); |
| release_http_pack_request(preq); |
| repo->can_update_info_refs = 0; |
| release_request(request); |
| } |
| } |
| |
| static void start_put(struct transfer_request *request) |
| { |
| char *hex = oid_to_hex(&request->obj->oid); |
| struct active_request_slot *slot; |
| struct strbuf buf = STRBUF_INIT; |
| enum object_type type; |
| char hdr[50]; |
| void *unpacked; |
| unsigned long len; |
| int hdrlen; |
| ssize_t size; |
| git_zstream stream; |
| |
| unpacked = read_object_file(&request->obj->oid, &type, &len); |
| hdrlen = format_object_header(hdr, sizeof(hdr), type, len); |
| |
| /* Set it up */ |
| git_deflate_init(&stream, zlib_compression_level); |
| size = git_deflate_bound(&stream, len + hdrlen); |
| strbuf_init(&request->buffer.buf, size); |
| request->buffer.posn = 0; |
| |
| /* Compress it */ |
| stream.next_out = (unsigned char *)request->buffer.buf.buf; |
| stream.avail_out = size; |
| |
| /* First header.. */ |
| stream.next_in = (void *)hdr; |
| stream.avail_in = hdrlen; |
| while (git_deflate(&stream, 0) == Z_OK) |
| ; /* nothing */ |
| |
| /* Then the data itself.. */ |
| stream.next_in = unpacked; |
| stream.avail_in = len; |
| while (git_deflate(&stream, Z_FINISH) == Z_OK) |
| ; /* nothing */ |
| git_deflate_end(&stream); |
| free(unpacked); |
| |
| request->buffer.buf.len = stream.total_out; |
| |
| strbuf_addstr(&buf, "Destination: "); |
| append_remote_object_url(&buf, repo->url, hex, 0); |
| request->dest = strbuf_detach(&buf, NULL); |
| |
| append_remote_object_url(&buf, repo->url, hex, 0); |
| strbuf_add(&buf, request->lock->tmpfile_suffix, the_hash_algo->hexsz + 1); |
| request->url = strbuf_detach(&buf, NULL); |
| |
| slot = get_active_slot(); |
| slot->callback_func = process_response; |
| slot->callback_data = request; |
| curl_setup_http(slot->curl, request->url, DAV_PUT, |
| &request->buffer, fwrite_null); |
| |
| if (start_active_slot(slot)) { |
| request->slot = slot; |
| request->state = RUN_PUT; |
| } else { |
| request->state = ABORTED; |
| FREE_AND_NULL(request->url); |
| } |
| } |
| |
| static void start_move(struct transfer_request *request) |
| { |
| struct active_request_slot *slot; |
| struct curl_slist *dav_headers = http_copy_default_headers(); |
| |
| slot = get_active_slot(); |
| slot->callback_func = process_response; |
| slot->callback_data = request; |
| curl_setup_http_get(slot->curl, request->url, DAV_MOVE); |
| dav_headers = curl_slist_append(dav_headers, request->dest); |
| dav_headers = curl_slist_append(dav_headers, "Overwrite: T"); |
| curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); |
| |
| if (start_active_slot(slot)) { |
| request->slot = slot; |
| request->state = RUN_MOVE; |
| } else { |
| request->state = ABORTED; |
| FREE_AND_NULL(request->url); |
| } |
| } |
| |
| static int refresh_lock(struct remote_lock *lock) |
| { |
| struct active_request_slot *slot; |
| struct slot_results results; |
| struct curl_slist *dav_headers; |
| int rc = 0; |
| |
| lock->refreshing = 1; |
| |
| dav_headers = get_dav_token_headers(lock, DAV_HEADER_IF | DAV_HEADER_TIMEOUT); |
| |
| slot = get_active_slot(); |
| slot->results = &results; |
| curl_setup_http_get(slot->curl, lock->url, DAV_LOCK); |
| curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); |
| |
| if (start_active_slot(slot)) { |
| run_active_slot(slot); |
| if (results.curl_result != CURLE_OK) { |
| fprintf(stderr, "LOCK HTTP error %ld\n", |
| results.http_code); |
| } else { |
| lock->start_time = time(NULL); |
| rc = 1; |
| } |
| } |
| |
| lock->refreshing = 0; |
| curl_slist_free_all(dav_headers); |
| |
| return rc; |
| } |
| |
| static void check_locks(void) |
| { |
| struct remote_lock *lock = repo->locks; |
| time_t current_time = time(NULL); |
| int time_remaining; |
| |
| while (lock) { |
| time_remaining = lock->start_time + lock->timeout - |
| current_time; |
| if (!lock->refreshing && time_remaining < LOCK_REFRESH) { |
| if (!refresh_lock(lock)) { |
| fprintf(stderr, |
| "Unable to refresh lock for %s\n", |
| lock->url); |
| aborted = 1; |
| return; |
| } |
| } |
| lock = lock->next; |
| } |
| } |
| |
| static void release_request(struct transfer_request *request) |
| { |
| struct transfer_request *entry = request_queue_head; |
| |
| if (request == request_queue_head) { |
| request_queue_head = request->next; |
| } else { |
| while (entry && entry->next != request) |
| entry = entry->next; |
| if (entry) |
| entry->next = request->next; |
| } |
| |
| free(request->url); |
| free(request); |
| } |
| |
| static void finish_request(struct transfer_request *request) |
| { |
| struct http_pack_request *preq; |
| struct http_object_request *obj_req; |
| |
| request->curl_result = request->slot->curl_result; |
| request->http_code = request->slot->http_code; |
| request->slot = NULL; |
| |
| /* Keep locks active */ |
| check_locks(); |
| |
| if (request->headers) |
| curl_slist_free_all(request->headers); |
| |
| /* URL is reused for MOVE after PUT and used during FETCH */ |
| if (request->state != RUN_PUT && request->state != RUN_FETCH_PACKED) { |
| FREE_AND_NULL(request->url); |
| } |
| |
| if (request->state == RUN_MKCOL) { |
| if (request->curl_result == CURLE_OK || |
| request->http_code == 405) { |
| remote_dir_exists[request->obj->oid.hash[0]] = 1; |
| start_put(request); |
| } else { |
| fprintf(stderr, "MKCOL %s failed, aborting (%d/%ld)\n", |
| oid_to_hex(&request->obj->oid), |
| request->curl_result, request->http_code); |
| request->state = ABORTED; |
| aborted = 1; |
| } |
| } else if (request->state == RUN_PUT) { |
| if (request->curl_result == CURLE_OK) { |
| start_move(request); |
| } else { |
| fprintf(stderr, "PUT %s failed, aborting (%d/%ld)\n", |
| oid_to_hex(&request->obj->oid), |
| request->curl_result, request->http_code); |
| request->state = ABORTED; |
| aborted = 1; |
| } |
| } else if (request->state == RUN_MOVE) { |
| if (request->curl_result == CURLE_OK) { |
| if (push_verbosely) |
| fprintf(stderr, " sent %s\n", |
| oid_to_hex(&request->obj->oid)); |
| request->obj->flags |= REMOTE; |
| release_request(request); |
| } else { |
| fprintf(stderr, "MOVE %s failed, aborting (%d/%ld)\n", |
| oid_to_hex(&request->obj->oid), |
| request->curl_result, request->http_code); |
| request->state = ABORTED; |
| aborted = 1; |
| } |
| } else if (request->state == RUN_FETCH_LOOSE) { |
| obj_req = (struct http_object_request *)request->userData; |
| |
| if (finish_http_object_request(obj_req) == 0) |
| if (obj_req->rename == 0) |
| request->obj->flags |= (LOCAL | REMOTE); |
| |
| /* Try fetching packed if necessary */ |
| if (request->obj->flags & LOCAL) { |
| release_http_object_request(obj_req); |
| release_request(request); |
| } else |
| start_fetch_packed(request); |
| |
| } else if (request->state == RUN_FETCH_PACKED) { |
| int fail = 1; |
| if (request->curl_result != CURLE_OK) { |
| fprintf(stderr, "Unable to get pack file %s\n%s", |
| request->url, curl_errorstr); |
| } else { |
| preq = (struct http_pack_request *)request->userData; |
| |
| if (preq) { |
| if (finish_http_pack_request(preq) == 0) |
| fail = 0; |
| release_http_pack_request(preq); |
| } |
| } |
| if (fail) |
| repo->can_update_info_refs = 0; |
| else |
| http_install_packfile(request->target, &repo->packs); |
| release_request(request); |
| } |
| } |
| |
| static int is_running_queue; |
| static int fill_active_slot(void *unused) |
| { |
| struct transfer_request *request; |
| |
| if (aborted || !is_running_queue) |
| return 0; |
| |
| for (request = request_queue_head; request; request = request->next) { |
| if (request->state == NEED_FETCH) { |
| start_fetch_loose(request); |
| return 1; |
| } else if (pushing && request->state == NEED_PUSH) { |
| if (remote_dir_exists[request->obj->oid.hash[0]] == 1) { |
| start_put(request); |
| } else { |
| start_mkcol(request); |
| } |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| static void get_remote_object_list(unsigned char parent); |
| |
| static void add_fetch_request(struct object *obj) |
| { |
| struct transfer_request *request; |
| |
| check_locks(); |
| |
| /* |
| * Don't fetch the object if it's known to exist locally |
| * or is already in the request queue |
| */ |
| if (remote_dir_exists[obj->oid.hash[0]] == -1) |
| get_remote_object_list(obj->oid.hash[0]); |
| if (obj->flags & (LOCAL | FETCHING)) |
| return; |
| |
| obj->flags |= FETCHING; |
| request = xmalloc(sizeof(*request)); |
| request->obj = obj; |
| request->url = NULL; |
| request->lock = NULL; |
| request->headers = NULL; |
| request->state = NEED_FETCH; |
| request->next = request_queue_head; |
| request_queue_head = request; |
| |
| fill_active_slots(); |
| step_active_slots(); |
| } |
| |
| static int add_send_request(struct object *obj, struct remote_lock *lock) |
| { |
| struct transfer_request *request; |
| struct packed_git *target; |
| |
| /* Keep locks active */ |
| check_locks(); |
| |
| /* |
| * Don't push the object if it's known to exist on the remote |
| * or is already in the request queue |
| */ |
| if (remote_dir_exists[obj->oid.hash[0]] == -1) |
| get_remote_object_list(obj->oid.hash[0]); |
| if (obj->flags & (REMOTE | PUSHING)) |
| return 0; |
| target = find_sha1_pack(obj->oid.hash, repo->packs); |
| if (target) { |
| obj->flags |= REMOTE; |
| return 0; |
| } |
| |
| obj->flags |= PUSHING; |
| request = xmalloc(sizeof(*request)); |
| request->obj = obj; |
| request->url = NULL; |
| request->lock = lock; |
| request->headers = NULL; |
| request->state = NEED_PUSH; |
| request->next = request_queue_head; |
| request_queue_head = request; |
| |
| fill_active_slots(); |
| step_active_slots(); |
| |
| return 1; |
| } |
| |
| static int fetch_indices(void) |
| { |
| int ret; |
| |
| if (push_verbosely) |
| fprintf(stderr, "Getting pack list\n"); |
| |
| switch (http_get_info_packs(repo->url, &repo->packs)) { |
| case HTTP_OK: |
| case HTTP_MISSING_TARGET: |
| ret = 0; |
| break; |
| default: |
| ret = -1; |
| } |
| |
| return ret; |
| } |
| |
| static void one_remote_object(const struct object_id *oid) |
| { |
| struct object *obj; |
| |
| obj = lookup_object(the_repository, oid); |
| if (!obj) |
| obj = parse_object(the_repository, oid); |
| |
| /* Ignore remote objects that don't exist locally */ |
| if (!obj) |
| return; |
| |
| obj->flags |= REMOTE; |
| if (!object_list_contains(objects, obj)) |
| object_list_insert(obj, &objects); |
| } |
| |
| static void handle_lockprop_ctx(struct xml_ctx *ctx, int tag_closed) |
| { |
| int *lock_flags = (int *)ctx->userData; |
| |
| if (tag_closed) { |
| if (!strcmp(ctx->name, DAV_CTX_LOCKENTRY)) { |
| if ((*lock_flags & DAV_PROP_LOCKEX) && |
| (*lock_flags & DAV_PROP_LOCKWR)) { |
| *lock_flags |= DAV_LOCK_OK; |
| } |
| *lock_flags &= DAV_LOCK_OK; |
| } else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_WRITE)) { |
| *lock_flags |= DAV_PROP_LOCKWR; |
| } else if (!strcmp(ctx->name, DAV_CTX_LOCKTYPE_EXCLUSIVE)) { |
| *lock_flags |= DAV_PROP_LOCKEX; |
| } |
| } |
| } |
| |
| static void handle_new_lock_ctx(struct xml_ctx *ctx, int tag_closed) |
| { |
| struct remote_lock *lock = (struct remote_lock *)ctx->userData; |
| git_hash_ctx hash_ctx; |
| unsigned char lock_token_hash[GIT_MAX_RAWSZ]; |
| |
| if (tag_closed && ctx->cdata) { |
| if (!strcmp(ctx->name, DAV_ACTIVELOCK_OWNER)) { |
| lock->owner = xstrdup(ctx->cdata); |
| } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TIMEOUT)) { |
| const char *arg; |
| if (skip_prefix(ctx->cdata, "Second-", &arg)) |
| lock->timeout = strtol(arg, NULL, 10); |
| } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TOKEN)) { |
| lock->token = xstrdup(ctx->cdata); |
| |
| the_hash_algo->init_fn(&hash_ctx); |
| the_hash_algo->update_fn(&hash_ctx, lock->token, strlen(lock->token)); |
| the_hash_algo->final_fn(lock_token_hash, &hash_ctx); |
| |
| lock->tmpfile_suffix[0] = '_'; |
| memcpy(lock->tmpfile_suffix + 1, hash_to_hex(lock_token_hash), the_hash_algo->hexsz); |
| } |
| } |
| } |
| |
| static void one_remote_ref(const char *refname); |
| |
| static void |
| xml_start_tag(void *userData, const char *name, const char **atts) |
| { |
| struct xml_ctx *ctx = (struct xml_ctx *)userData; |
| const char *c = strchr(name, ':'); |
| int old_namelen, new_len; |
| |
| if (!c) |
| c = name; |
| else |
| c++; |
| |
| old_namelen = strlen(ctx->name); |
| new_len = old_namelen + strlen(c) + 2; |
| |
| if (new_len > ctx->len) { |
| ctx->name = xrealloc(ctx->name, new_len); |
| ctx->len = new_len; |
| } |
| xsnprintf(ctx->name + old_namelen, ctx->len - old_namelen, ".%s", c); |
| |
| FREE_AND_NULL(ctx->cdata); |
| |
| ctx->userFunc(ctx, 0); |
| } |
| |
| static void |
| xml_end_tag(void *userData, const char *name) |
| { |
| struct xml_ctx *ctx = (struct xml_ctx *)userData; |
| const char *c = strchr(name, ':'); |
| char *ep; |
| |
| ctx->userFunc(ctx, 1); |
| |
| if (!c) |
| c = name; |
| else |
| c++; |
| |
| ep = ctx->name + strlen(ctx->name) - strlen(c) - 1; |
| *ep = 0; |
| } |
| |
| static void |
| xml_cdata(void *userData, const XML_Char *s, int len) |
| { |
| struct xml_ctx *ctx = (struct xml_ctx *)userData; |
| free(ctx->cdata); |
| ctx->cdata = xmemdupz(s, len); |
| } |
| |
| static struct remote_lock *lock_remote(const char *path, long timeout) |
| { |
| struct active_request_slot *slot; |
| struct slot_results results; |
| struct buffer out_buffer = { STRBUF_INIT, 0 }; |
| struct strbuf in_buffer = STRBUF_INIT; |
| char *url; |
| char *ep; |
| char timeout_header[25]; |
| struct remote_lock *lock = NULL; |
| struct curl_slist *dav_headers = http_copy_default_headers(); |
| struct xml_ctx ctx; |
| char *escaped; |
| |
| url = xstrfmt("%s%s", repo->url, path); |
| |
| /* Make sure leading directories exist for the remote ref */ |
| ep = strchr(url + strlen(repo->url) + 1, '/'); |
| while (ep) { |
| char saved_character = ep[1]; |
| ep[1] = '\0'; |
| slot = get_active_slot(); |
| slot->results = &results; |
| curl_setup_http_get(slot->curl, url, DAV_MKCOL); |
| if (start_active_slot(slot)) { |
| run_active_slot(slot); |
| if (results.curl_result != CURLE_OK && |
| results.http_code != 405) { |
| fprintf(stderr, |
| "Unable to create branch path %s\n", |
| url); |
| free(url); |
| return NULL; |
| } |
| } else { |
| fprintf(stderr, "Unable to start MKCOL request\n"); |
| free(url); |
| return NULL; |
| } |
| ep[1] = saved_character; |
| ep = strchr(ep + 1, '/'); |
| } |
| |
| escaped = xml_entities(ident_default_email()); |
| strbuf_addf(&out_buffer.buf, LOCK_REQUEST, escaped); |
| free(escaped); |
| |
| xsnprintf(timeout_header, sizeof(timeout_header), "Timeout: Second-%ld", timeout); |
| dav_headers = curl_slist_append(dav_headers, timeout_header); |
| dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml"); |
| |
| slot = get_active_slot(); |
| slot->results = &results; |
| curl_setup_http(slot->curl, url, DAV_LOCK, &out_buffer, fwrite_buffer); |
| curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); |
| curl_easy_setopt(slot->curl, CURLOPT_WRITEDATA, &in_buffer); |
| |
| CALLOC_ARRAY(lock, 1); |
| lock->timeout = -1; |
| |
| if (start_active_slot(slot)) { |
| run_active_slot(slot); |
| if (results.curl_result == CURLE_OK) { |
| XML_Parser parser = XML_ParserCreate(NULL); |
| enum XML_Status result; |
| ctx.name = xcalloc(10, 1); |
| ctx.len = 0; |
| ctx.cdata = NULL; |
| ctx.userFunc = handle_new_lock_ctx; |
| ctx.userData = lock; |
| XML_SetUserData(parser, &ctx); |
| XML_SetElementHandler(parser, xml_start_tag, |
| xml_end_tag); |
| XML_SetCharacterDataHandler(parser, xml_cdata); |
| result = XML_Parse(parser, in_buffer.buf, |
| in_buffer.len, 1); |
| free(ctx.name); |
| if (result != XML_STATUS_OK) { |
| fprintf(stderr, "XML error: %s\n", |
| XML_ErrorString( |
| XML_GetErrorCode(parser))); |
| lock->timeout = -1; |
| } |
| XML_ParserFree(parser); |
| } else { |
| fprintf(stderr, |
| "error: curl result=%d, HTTP code=%ld\n", |
| results.curl_result, results.http_code); |
| } |
| } else { |
| fprintf(stderr, "Unable to start LOCK request\n"); |
| } |
| |
| curl_slist_free_all(dav_headers); |
| strbuf_release(&out_buffer.buf); |
| strbuf_release(&in_buffer); |
| |
| if (lock->token == NULL || lock->timeout <= 0) { |
| free(lock->token); |
| free(lock->owner); |
| free(url); |
| FREE_AND_NULL(lock); |
| } else { |
| lock->url = url; |
| lock->start_time = time(NULL); |
| lock->next = repo->locks; |
| repo->locks = lock; |
| } |
| |
| return lock; |
| } |
| |
| static int unlock_remote(struct remote_lock *lock) |
| { |
| struct active_request_slot *slot; |
| struct slot_results results; |
| struct remote_lock *prev = repo->locks; |
| struct curl_slist *dav_headers; |
| int rc = 0; |
| |
| dav_headers = get_dav_token_headers(lock, DAV_HEADER_LOCK); |
| |
| slot = get_active_slot(); |
| slot->results = &results; |
| curl_setup_http_get(slot->curl, lock->url, DAV_UNLOCK); |
| curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); |
| |
| if (start_active_slot(slot)) { |
| run_active_slot(slot); |
| if (results.curl_result == CURLE_OK) |
| rc = 1; |
| else |
| fprintf(stderr, "UNLOCK HTTP error %ld\n", |
| results.http_code); |
| } else { |
| fprintf(stderr, "Unable to start UNLOCK request\n"); |
| } |
| |
| curl_slist_free_all(dav_headers); |
| |
| if (repo->locks == lock) { |
| repo->locks = lock->next; |
| } else { |
| while (prev && prev->next != lock) |
| prev = prev->next; |
| if (prev) |
| prev->next = lock->next; |
| } |
| |
| free(lock->owner); |
| free(lock->url); |
| free(lock->token); |
| free(lock); |
| |
| return rc; |
| } |
| |
| static void remove_locks(void) |
| { |
| struct remote_lock *lock = repo->locks; |
| |
| fprintf(stderr, "Removing remote locks...\n"); |
| while (lock) { |
| struct remote_lock *next = lock->next; |
| unlock_remote(lock); |
| lock = next; |
| } |
| } |
| |
| static void remove_locks_on_signal(int signo) |
| { |
| remove_locks(); |
| sigchain_pop(signo); |
| raise(signo); |
| } |
| |
| static void remote_ls(const char *path, int flags, |
| void (*userFunc)(struct remote_ls_ctx *ls), |
| void *userData); |
| |
| /* extract hex from sharded "xx/x{38}" filename */ |
| static int get_oid_hex_from_objpath(const char *path, struct object_id *oid) |
| { |
| oid->algo = hash_algo_by_ptr(the_hash_algo); |
| |
| if (strlen(path) != the_hash_algo->hexsz + 1) |
| return -1; |
| |
| if (hex_to_bytes(oid->hash, path, 1)) |
| return -1; |
| path += 2; |
| path++; /* skip '/' */ |
| |
| return hex_to_bytes(oid->hash + 1, path, the_hash_algo->rawsz - 1); |
| } |
| |
| static void process_ls_object(struct remote_ls_ctx *ls) |
| { |
| unsigned int *parent = (unsigned int *)ls->userData; |
| const char *path = ls->dentry_name; |
| struct object_id oid; |
| |
| if (!strcmp(ls->path, ls->dentry_name) && (ls->flags & IS_DIR)) { |
| remote_dir_exists[*parent] = 1; |
| return; |
| } |
| |
| if (!skip_prefix(path, "objects/", &path) || |
| get_oid_hex_from_objpath(path, &oid)) |
| return; |
| |
| one_remote_object(&oid); |
| } |
| |
| static void process_ls_ref(struct remote_ls_ctx *ls) |
| { |
| if (!strcmp(ls->path, ls->dentry_name) && (ls->dentry_flags & IS_DIR)) { |
| fprintf(stderr, " %s\n", ls->dentry_name); |
| return; |
| } |
| |
| if (!(ls->dentry_flags & IS_DIR)) |
| one_remote_ref(ls->dentry_name); |
| } |
| |
| static void handle_remote_ls_ctx(struct xml_ctx *ctx, int tag_closed) |
| { |
| struct remote_ls_ctx *ls = (struct remote_ls_ctx *)ctx->userData; |
| |
| if (tag_closed) { |
| if (!strcmp(ctx->name, DAV_PROPFIND_RESP) && ls->dentry_name) { |
| if (ls->dentry_flags & IS_DIR) { |
| |
| /* ensure collection names end with slash */ |
| str_end_url_with_slash(ls->dentry_name, &ls->dentry_name); |
| |
| if (ls->flags & PROCESS_DIRS) { |
| ls->userFunc(ls); |
| } |
| if (strcmp(ls->dentry_name, ls->path) && |
| ls->flags & RECURSIVE) { |
| remote_ls(ls->dentry_name, |
| ls->flags, |
| ls->userFunc, |
| ls->userData); |
| } |
| } else if (ls->flags & PROCESS_FILES) { |
| ls->userFunc(ls); |
| } |
| } else if (!strcmp(ctx->name, DAV_PROPFIND_NAME) && ctx->cdata) { |
| char *path = ctx->cdata; |
| if (*ctx->cdata == 'h') { |
| path = strstr(path, "//"); |
| if (path) { |
| path = strchr(path+2, '/'); |
| } |
| } |
| if (path) { |
| const char *url = repo->url; |
| if (repo->path) |
| url = repo->path; |
| if (strncmp(path, url, repo->path_len)) |
| error("Parsed path '%s' does not match url: '%s'", |
| path, url); |
| else { |
| path += repo->path_len; |
| ls->dentry_name = xstrdup(path); |
| } |
| } |
| } else if (!strcmp(ctx->name, DAV_PROPFIND_COLLECTION)) { |
| ls->dentry_flags |= IS_DIR; |
| } |
| } else if (!strcmp(ctx->name, DAV_PROPFIND_RESP)) { |
| FREE_AND_NULL(ls->dentry_name); |
| ls->dentry_flags = 0; |
| } |
| } |
| |
| /* |
| * NEEDSWORK: remote_ls() ignores info/refs on the remote side. But it |
| * should _only_ heed the information from that file, instead of trying to |
| * determine the refs from the remote file system (badly: it does not even |
| * know about packed-refs). |
| */ |
| static void remote_ls(const char *path, int flags, |
| void (*userFunc)(struct remote_ls_ctx *ls), |
| void *userData) |
| { |
| char *url = xstrfmt("%s%s", repo->url, path); |
| struct active_request_slot *slot; |
| struct slot_results results; |
| struct strbuf in_buffer = STRBUF_INIT; |
| struct buffer out_buffer = { STRBUF_INIT, 0 }; |
| struct curl_slist *dav_headers = http_copy_default_headers(); |
| struct xml_ctx ctx; |
| struct remote_ls_ctx ls; |
| |
| ls.flags = flags; |
| ls.path = xstrdup(path); |
| ls.dentry_name = NULL; |
| ls.dentry_flags = 0; |
| ls.userData = userData; |
| ls.userFunc = userFunc; |
| |
| strbuf_addstr(&out_buffer.buf, PROPFIND_ALL_REQUEST); |
| |
| dav_headers = curl_slist_append(dav_headers, "Depth: 1"); |
| dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml"); |
| |
| slot = get_active_slot(); |
| slot->results = &results; |
| curl_setup_http(slot->curl, url, DAV_PROPFIND, |
| &out_buffer, fwrite_buffer); |
| curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); |
| curl_easy_setopt(slot->curl, CURLOPT_WRITEDATA, &in_buffer); |
| |
| if (start_active_slot(slot)) { |
| run_active_slot(slot); |
| if (results.curl_result == CURLE_OK) { |
| XML_Parser parser = XML_ParserCreate(NULL); |
| enum XML_Status result; |
| ctx.name = xcalloc(10, 1); |
| ctx.len = 0; |
| ctx.cdata = NULL; |
| ctx.userFunc = handle_remote_ls_ctx; |
| ctx.userData = &ls; |
| XML_SetUserData(parser, &ctx); |
| XML_SetElementHandler(parser, xml_start_tag, |
| xml_end_tag); |
| XML_SetCharacterDataHandler(parser, xml_cdata); |
| result = XML_Parse(parser, in_buffer.buf, |
| in_buffer.len, 1); |
| free(ctx.name); |
| |
| if (result != XML_STATUS_OK) { |
| fprintf(stderr, "XML error: %s\n", |
| XML_ErrorString( |
| XML_GetErrorCode(parser))); |
| } |
| XML_ParserFree(parser); |
| } |
| } else { |
| fprintf(stderr, "Unable to start PROPFIND request\n"); |
| } |
| |
| free(ls.path); |
| free(url); |
| strbuf_release(&out_buffer.buf); |
| strbuf_release(&in_buffer); |
| curl_slist_free_all(dav_headers); |
| } |
| |
| static void get_remote_object_list(unsigned char parent) |
| { |
| char path[] = "objects/XX/"; |
| static const char hex[] = "0123456789abcdef"; |
| unsigned int val = parent; |
| |
| path[8] = hex[val >> 4]; |
| path[9] = hex[val & 0xf]; |
| remote_dir_exists[val] = 0; |
| remote_ls(path, (PROCESS_FILES | PROCESS_DIRS), |
| process_ls_object, &val); |
| } |
| |
| static int locking_available(void) |
| { |
| struct active_request_slot *slot; |
| struct slot_results results; |
| struct strbuf in_buffer = STRBUF_INIT; |
| struct buffer out_buffer = { STRBUF_INIT, 0 }; |
| struct curl_slist *dav_headers = http_copy_default_headers(); |
| struct xml_ctx ctx; |
| int lock_flags = 0; |
| char *escaped; |
| |
| escaped = xml_entities(repo->url); |
| strbuf_addf(&out_buffer.buf, PROPFIND_SUPPORTEDLOCK_REQUEST, escaped); |
| free(escaped); |
| |
| dav_headers = curl_slist_append(dav_headers, "Depth: 0"); |
| dav_headers = curl_slist_append(dav_headers, "Content-Type: text/xml"); |
| |
| slot = get_active_slot(); |
| slot->results = &results; |
| curl_setup_http(slot->curl, repo->url, DAV_PROPFIND, |
| &out_buffer, fwrite_buffer); |
| curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); |
| curl_easy_setopt(slot->curl, CURLOPT_WRITEDATA, &in_buffer); |
| |
| if (start_active_slot(slot)) { |
| run_active_slot(slot); |
| if (results.curl_result == CURLE_OK) { |
| XML_Parser parser = XML_ParserCreate(NULL); |
| enum XML_Status result; |
| ctx.name = xcalloc(10, 1); |
| ctx.len = 0; |
| ctx.cdata = NULL; |
| ctx.userFunc = handle_lockprop_ctx; |
| ctx.userData = &lock_flags; |
| XML_SetUserData(parser, &ctx); |
| XML_SetElementHandler(parser, xml_start_tag, |
| xml_end_tag); |
| result = XML_Parse(parser, in_buffer.buf, |
| in_buffer.len, 1); |
| free(ctx.name); |
| |
| if (result != XML_STATUS_OK) { |
| fprintf(stderr, "XML error: %s\n", |
| XML_ErrorString( |
| XML_GetErrorCode(parser))); |
| lock_flags = 0; |
| } |
| XML_ParserFree(parser); |
| if (!lock_flags) |
| error("no DAV locking support on %s", |
| repo->url); |
| |
| } else { |
| error("Cannot access URL %s, return code %d", |
| repo->url, results.curl_result); |
| lock_flags = 0; |
| } |
| } else { |
| error("Unable to start PROPFIND request on %s", repo->url); |
| } |
| |
| strbuf_release(&out_buffer.buf); |
| strbuf_release(&in_buffer); |
| curl_slist_free_all(dav_headers); |
| |
| return lock_flags; |
| } |
| |
| static struct object_list **add_one_object(struct object *obj, struct object_list **p) |
| { |
| struct object_list *entry = xmalloc(sizeof(struct object_list)); |
| entry->item = obj; |
| entry->next = *p; |
| *p = entry; |
| return &entry->next; |
| } |
| |
| static struct object_list **process_blob(struct blob *blob, |
| struct object_list **p) |
| { |
| struct object *obj = &blob->object; |
| |
| obj->flags |= LOCAL; |
| |
| if (obj->flags & (UNINTERESTING | SEEN)) |
| return p; |
| |
| obj->flags |= SEEN; |
| return add_one_object(obj, p); |
| } |
| |
| static struct object_list **process_tree(struct tree *tree, |
| struct object_list **p) |
| { |
| struct object *obj = &tree->object; |
| struct tree_desc desc; |
| struct name_entry entry; |
| |
| obj->flags |= LOCAL; |
| |
| if (obj->flags & (UNINTERESTING | SEEN)) |
| return p; |
| if (parse_tree(tree) < 0) |
| die("bad tree object %s", oid_to_hex(&obj->oid)); |
| |
| obj->flags |= SEEN; |
| p = add_one_object(obj, p); |
| |
| init_tree_desc(&desc, tree->buffer, tree->size); |
| |
| while (tree_entry(&desc, &entry)) |
| switch (object_type(entry.mode)) { |
| case OBJ_TREE: |
| p = process_tree(lookup_tree(the_repository, &entry.oid), |
| p); |
| break; |
| case OBJ_BLOB: |
| p = process_blob(lookup_blob(the_repository, &entry.oid), |
| p); |
| break; |
| default: |
| /* Subproject commit - not in this repository */ |
| break; |
| } |
| |
| free_tree_buffer(tree); |
| return p; |
| } |
| |
| static int get_delta(struct rev_info *revs, struct remote_lock *lock) |
| { |
| int i; |
| struct commit *commit; |
| struct object_list **p = &objects; |
| int count = 0; |
| |
| while ((commit = get_revision(revs)) != NULL) { |
| p = process_tree(get_commit_tree(commit), p); |
| commit->object.flags |= LOCAL; |
| if (!(commit->object.flags & UNINTERESTING)) |
| count += add_send_request(&commit->object, lock); |
| } |
| |
| for (i = 0; i < revs->pending.nr; i++) { |
| struct object_array_entry *entry = revs->pending.objects + i; |
| struct object *obj = entry->item; |
| const char *name = entry->name; |
| |
| if (obj->flags & (UNINTERESTING | SEEN)) |
| continue; |
| if (obj->type == OBJ_TAG) { |
| obj->flags |= SEEN; |
| p = add_one_object(obj, p); |
| continue; |
| } |
| if (obj->type == OBJ_TREE) { |
| p = process_tree((struct tree *)obj, p); |
| continue; |
| } |
| if (obj->type == OBJ_BLOB) { |
| p = process_blob((struct blob *)obj, p); |
| continue; |
| } |
| die("unknown pending object %s (%s)", oid_to_hex(&obj->oid), name); |
| } |
| |
| while (objects) { |
| if (!(objects->item->flags & UNINTERESTING)) |
| count += add_send_request(objects->item, lock); |
| objects = objects->next; |
| } |
| |
| return count; |
| } |
| |
| static int update_remote(const struct object_id *oid, struct remote_lock *lock) |
| { |
| struct active_request_slot *slot; |
| struct slot_results results; |
| struct buffer out_buffer = { STRBUF_INIT, 0 }; |
| struct curl_slist *dav_headers; |
| |
| dav_headers = get_dav_token_headers(lock, DAV_HEADER_IF); |
| |
| strbuf_addf(&out_buffer.buf, "%s\n", oid_to_hex(oid)); |
| |
| slot = get_active_slot(); |
| slot->results = &results; |
| curl_setup_http(slot->curl, lock->url, DAV_PUT, |
| &out_buffer, fwrite_null); |
| curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); |
| |
| if (start_active_slot(slot)) { |
| run_active_slot(slot); |
| strbuf_release(&out_buffer.buf); |
| if (results.curl_result != CURLE_OK) { |
| fprintf(stderr, |
| "PUT error: curl result=%d, HTTP code=%ld\n", |
| results.curl_result, results.http_code); |
| /* We should attempt recovery? */ |
| return 0; |
| } |
| } else { |
| strbuf_release(&out_buffer.buf); |
| fprintf(stderr, "Unable to start PUT request\n"); |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| static struct ref *remote_refs; |
| |
| static void one_remote_ref(const char *refname) |
| { |
| struct ref *ref; |
| struct object *obj; |
| |
| ref = alloc_ref(refname); |
| |
| if (http_fetch_ref(repo->url, ref) != 0) { |
| fprintf(stderr, |
| "Unable to fetch ref %s from %s\n", |
| refname, repo->url); |
| free(ref); |
| return; |
| } |
| |
| /* |
| * Fetch a copy of the object if it doesn't exist locally - it |
| * may be required for updating server info later. |
| */ |
| if (repo->can_update_info_refs && !has_object_file(&ref->old_oid)) { |
| obj = lookup_unknown_object(the_repository, &ref->old_oid); |
| fprintf(stderr, " fetch %s for %s\n", |
| oid_to_hex(&ref->old_oid), refname); |
| add_fetch_request(obj); |
| } |
| |
| ref->next = remote_refs; |
| remote_refs = ref; |
| } |
| |
| static void get_dav_remote_heads(void) |
| { |
| remote_ls("refs/", (PROCESS_FILES | PROCESS_DIRS | RECURSIVE), process_ls_ref, NULL); |
| } |
| |
| static void add_remote_info_ref(struct remote_ls_ctx *ls) |
| { |
| struct strbuf *buf = (struct strbuf *)ls->userData; |
| struct object *o; |
| struct ref *ref; |
| |
| ref = alloc_ref(ls->dentry_name); |
| |
| if (http_fetch_ref(repo->url, ref) != 0) { |
| fprintf(stderr, |
| "Unable to fetch ref %s from %s\n", |
| ls->dentry_name, repo->url); |
| aborted = 1; |
| free(ref); |
| return; |
| } |
| |
| o = parse_object(the_repository, &ref->old_oid); |
| if (!o) { |
| fprintf(stderr, |
| "Unable to parse object %s for remote ref %s\n", |
| oid_to_hex(&ref->old_oid), ls->dentry_name); |
| aborted = 1; |
| free(ref); |
| return; |
| } |
| |
| strbuf_addf(buf, "%s\t%s\n", |
| oid_to_hex(&ref->old_oid), ls->dentry_name); |
| |
| if (o->type == OBJ_TAG) { |
| o = deref_tag(the_repository, o, ls->dentry_name, 0); |
| if (o) |
| strbuf_addf(buf, "%s\t%s^{}\n", |
| oid_to_hex(&o->oid), ls->dentry_name); |
| } |
| free(ref); |
| } |
| |
| static void update_remote_info_refs(struct remote_lock *lock) |
| { |
| struct buffer buffer = { STRBUF_INIT, 0 }; |
| struct active_request_slot *slot; |
| struct slot_results results; |
| struct curl_slist *dav_headers; |
| |
| remote_ls("refs/", (PROCESS_FILES | RECURSIVE), |
| add_remote_info_ref, &buffer.buf); |
| if (!aborted) { |
| dav_headers = get_dav_token_headers(lock, DAV_HEADER_IF); |
| |
| slot = get_active_slot(); |
| slot->results = &results; |
| curl_setup_http(slot->curl, lock->url, DAV_PUT, |
| &buffer, fwrite_null); |
| curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers); |
| |
| if (start_active_slot(slot)) { |
| run_active_slot(slot); |
| if (results.curl_result != CURLE_OK) { |
| fprintf(stderr, |
| "PUT error: curl result=%d, HTTP code=%ld\n", |
| results.curl_result, results.http_code); |
| } |
| } |
| } |
| strbuf_release(&buffer.buf); |
| } |
| |
| static int remote_exists(const char *path) |
| { |
| char *url = xstrfmt("%s%s", repo->url, path); |
| int ret; |
| |
| |
| switch (http_get_strbuf(url, NULL, NULL)) { |
| case HTTP_OK: |
| ret = 1; |
| break; |
| case HTTP_MISSING_TARGET: |
| ret = 0; |
| break; |
| case HTTP_ERROR: |
| error("unable to access '%s': %s", url, curl_errorstr); |
| /* fallthrough */ |
| default: |
| ret = -1; |
| } |
| free(url); |
| return ret; |
| } |
| |
| static void fetch_symref(const char *path, char **symref, struct object_id *oid) |
| { |
| char *url = xstrfmt("%s%s", repo->url, path); |
| struct strbuf buffer = STRBUF_INIT; |
| const char *name; |
| |
| if (http_get_strbuf(url, &buffer, NULL) != HTTP_OK) |
| die("Couldn't get %s for remote symref\n%s", url, |
| curl_errorstr); |
| free(url); |
| |
| FREE_AND_NULL(*symref); |
| oidclr(oid); |
| |
| if (buffer.len == 0) |
| return; |
| |
| /* Cut off trailing newline. */ |
| strbuf_rtrim(&buffer); |
| |
| /* If it's a symref, set the refname; otherwise try for a sha1 */ |
| if (skip_prefix(buffer.buf, "ref: ", &name)) { |
| *symref = xmemdupz(name, buffer.len - (name - buffer.buf)); |
| } else { |
| get_oid_hex(buffer.buf, oid); |
| } |
| |
| strbuf_release(&buffer); |
| } |
| |
| static int verify_merge_base(struct object_id *head_oid, struct ref *remote) |
| { |
| struct commit *head = lookup_commit_or_die(head_oid, "HEAD"); |
| struct commit *branch = lookup_commit_or_die(&remote->old_oid, |
| remote->name); |
| |
| return in_merge_bases(branch, head); |
| } |
| |
| static int delete_remote_branch(const char *pattern, int force) |
| { |
| struct ref *refs = remote_refs; |
| struct ref *remote_ref = NULL; |
| struct object_id head_oid; |
| char *symref = NULL; |
| int match; |
| int patlen = strlen(pattern); |
| int i; |
| struct active_request_slot *slot; |
| struct slot_results results; |
| char *url; |
| |
| /* Find the remote branch(es) matching the specified branch name */ |
| for (match = 0; refs; refs = refs->next) { |
| char *name = refs->name; |
| int namelen = strlen(name); |
| if (namelen < patlen || |
| memcmp(name + namelen - patlen, pattern, patlen)) |
| continue; |
| if (namelen != patlen && name[namelen - patlen - 1] != '/') |
| continue; |
| match++; |
| remote_ref = refs; |
| } |
| if (match == 0) |
| return error("No remote branch matches %s", pattern); |
| if (match != 1) |
| return error("More than one remote branch matches %s", |
| pattern); |
| |
| /* |
| * Remote HEAD must be a symref (not exactly foolproof; a remote |
| * symlink to a symref will look like a symref) |
| */ |
| fetch_symref("HEAD", &symref, &head_oid); |
| if (!symref) |
| return error("Remote HEAD is not a symref"); |
| |
| /* Remote branch must not be the remote HEAD */ |
| for (i = 0; symref && i < MAXDEPTH; i++) { |
| if (!strcmp(remote_ref->name, symref)) |
| return error("Remote branch %s is the current HEAD", |
| remote_ref->name); |
| fetch_symref(symref, &symref, &head_oid); |
| } |
| |
| /* Run extra sanity checks if delete is not forced */ |
| if (!force) { |
| /* Remote HEAD must resolve to a known object */ |
| if (symref) |
| return error("Remote HEAD symrefs too deep"); |
| if (is_null_oid(&head_oid)) |
| return error("Unable to resolve remote HEAD"); |
| if (!has_object_file(&head_oid)) |
| return error("Remote HEAD resolves to object %s\nwhich does not exist locally, perhaps you need to fetch?", oid_to_hex(&head_oid)); |
| |
| /* Remote branch must resolve to a known object */ |
| if (is_null_oid(&remote_ref->old_oid)) |
| return error("Unable to resolve remote branch %s", |
| remote_ref->name); |
| if (!has_object_file(&remote_ref->old_oid)) |
| return error("Remote branch %s resolves to object %s\nwhich does not exist locally, perhaps you need to fetch?", remote_ref->name, oid_to_hex(&remote_ref->old_oid)); |
| |
| /* Remote branch must be an ancestor of remote HEAD */ |
| if (!verify_merge_base(&head_oid, remote_ref)) { |
| return error("The branch '%s' is not an ancestor " |
| "of your current HEAD.\n" |
| "If you are sure you want to delete it," |
| " run:\n\t'git http-push -D %s %s'", |
| remote_ref->name, repo->url, pattern); |
| } |
| } |
| |
| /* Send delete request */ |
| fprintf(stderr, "Removing remote branch '%s'\n", remote_ref->name); |
| if (dry_run) |
| return 0; |
| url = xstrfmt("%s%s", repo->url, remote_ref->name); |
| slot = get_active_slot(); |
| slot->results = &results; |
| curl_setup_http_get(slot->curl, url, DAV_DELETE); |
| if (start_active_slot(slot)) { |
| run_active_slot(slot); |
| free(url); |
| if (results.curl_result != CURLE_OK) |
| return error("DELETE request failed (%d/%ld)", |
| results.curl_result, results.http_code); |
| } else { |
| free(url); |
| return error("Unable to start DELETE request"); |
| } |
| |
| return 0; |
| } |
| |
| static void run_request_queue(void) |
| { |
| is_running_queue = 1; |
| fill_active_slots(); |
| add_fill_function(NULL, fill_active_slot); |
| do { |
| finish_all_active_slots(); |
| fill_active_slots(); |
| } while (request_queue_head && !aborted); |
| |
| is_running_queue = 0; |
| } |
| |
| int cmd_main(int argc, const char **argv) |
| { |
| struct transfer_request *request; |
| struct transfer_request *next_request; |
| struct refspec rs = REFSPEC_INIT_PUSH; |
| struct remote_lock *ref_lock = NULL; |
| struct remote_lock *info_ref_lock = NULL; |
| int delete_branch = 0; |
| int force_delete = 0; |
| int objects_to_send; |
| int rc = 0; |
| int i; |
| int new_refs; |
| struct ref *ref, *local_refs; |
| |
| CALLOC_ARRAY(repo, 1); |
| |
| argv++; |
| for (i = 1; i < argc; i++, argv++) { |
| const char *arg = *argv; |
| |
| if (*arg == '-') { |
| if (!strcmp(arg, "--all")) { |
| push_all = MATCH_REFS_ALL; |
| continue; |
| } |
| if (!strcmp(arg, "--force")) { |
| force_all = 1; |
| continue; |
| } |
| if (!strcmp(arg, "--dry-run")) { |
| dry_run = 1; |
| continue; |
| } |
| if (!strcmp(arg, "--helper-status")) { |
| helper_status = 1; |
| continue; |
| } |
| if (!strcmp(arg, "--verbose")) { |
| push_verbosely = 1; |
| http_is_verbose = 1; |
| continue; |
| } |
| if (!strcmp(arg, "-d")) { |
| delete_branch = 1; |
| continue; |
| } |
| if (!strcmp(arg, "-D")) { |
| delete_branch = 1; |
| force_delete = 1; |
| continue; |
| } |
| if (!strcmp(arg, "-h")) |
| usage(http_push_usage); |
| } |
| if (!repo->url) { |
| char *path = strstr(arg, "//"); |
| str_end_url_with_slash(arg, &repo->url); |
| repo->path_len = strlen(repo->url); |
| if (path) { |
| repo->path = strchr(path+2, '/'); |
| if (repo->path) |
| repo->path_len = strlen(repo->path); |
| } |
| continue; |
| } |
| refspec_appendn(&rs, argv, argc - i); |
| break; |
| } |
| |
| if (!repo->url) |
| usage(http_push_usage); |
| |
| if (delete_branch && rs.nr != 1) |
| die("You must specify only one branch name when deleting a remote branch"); |
| |
| setup_git_directory(); |
| |
| memset(remote_dir_exists, -1, 256); |
| |
| http_init(NULL, repo->url, 1); |
| |
| is_running_queue = 0; |
| |
| /* Verify DAV compliance/lock support */ |
| if (!locking_available()) { |
| rc = 1; |
| goto cleanup; |
| } |
| |
| sigchain_push_common(remove_locks_on_signal); |
| |
| /* Check whether the remote has server info files */ |
| repo->can_update_info_refs = 0; |
| repo->has_info_refs = remote_exists("info/refs"); |
| repo->has_info_packs = remote_exists("objects/info/packs"); |
| if (repo->has_info_refs) { |
| info_ref_lock = lock_remote("info/refs", LOCK_TIME); |
| if (info_ref_lock) |
| repo->can_update_info_refs = 1; |
| else { |
| error("cannot lock existing info/refs"); |
| rc = 1; |
| goto cleanup; |
| } |
| } |
| if (repo->has_info_packs) |
| fetch_indices(); |
| |
| /* Get a list of all local and remote heads to validate refspecs */ |
| local_refs = get_local_heads(); |
| fprintf(stderr, "Fetching remote heads...\n"); |
| get_dav_remote_heads(); |
| run_request_queue(); |
| |
| /* Remove a remote branch if -d or -D was specified */ |
| if (delete_branch) { |
| const char *branch = rs.items[i].src; |
| if (delete_remote_branch(branch, force_delete) == -1) { |
| fprintf(stderr, "Unable to delete remote branch %s\n", |
| branch); |
| if (helper_status) |
| printf("error %s cannot remove\n", branch); |
| } |
| goto cleanup; |
| } |
| |
| /* match them up */ |
| if (match_push_refs(local_refs, &remote_refs, &rs, push_all)) { |
| rc = -1; |
| goto cleanup; |
| } |
| if (!remote_refs) { |
| fprintf(stderr, "No refs in common and none specified; doing nothing.\n"); |
| if (helper_status) |
| printf("error null no match\n"); |
| rc = 0; |
| goto cleanup; |
| } |
| |
| new_refs = 0; |
| for (ref = remote_refs; ref; ref = ref->next) { |
| struct rev_info revs; |
| struct strvec commit_argv = STRVEC_INIT; |
| |
| if (!ref->peer_ref) |
| continue; |
| |
| if (is_null_oid(&ref->peer_ref->new_oid)) { |
| if (delete_remote_branch(ref->name, 1) == -1) { |
| error("Could not remove %s", ref->name); |
| if (helper_status) |
| printf("error %s cannot remove\n", ref->name); |
| rc = -4; |
| } |
| else if (helper_status) |
| printf("ok %s\n", ref->name); |
| new_refs++; |
| continue; |
| } |
| |
| if (oideq(&ref->old_oid, &ref->peer_ref->new_oid)) { |
| if (push_verbosely) |
| fprintf(stderr, "'%s': up-to-date\n", ref->name); |
| if (helper_status) |
| printf("ok %s up to date\n", ref->name); |
| continue; |
| } |
| |
| if (!force_all && |
| !is_null_oid(&ref->old_oid) && |
| !ref->force) { |
| if (!has_object_file(&ref->old_oid) || |
| !ref_newer(&ref->peer_ref->new_oid, |
| &ref->old_oid)) { |
| /* |
| * We do not have the remote ref, or |
| * we know that the remote ref is not |
| * an ancestor of what we are trying to |
| * push. Either way this can be losing |
| * commits at the remote end and likely |
| * we were not up to date to begin with. |
| */ |
| error("remote '%s' is not an ancestor of\n" |
| "local '%s'.\n" |
| "Maybe you are not up-to-date and " |
| "need to pull first?", |
| ref->name, |
| ref->peer_ref->name); |
| if (helper_status) |
| printf("error %s non-fast forward\n", ref->name); |
| rc = -2; |
| continue; |
| } |
| } |
| oidcpy(&ref->new_oid, &ref->peer_ref->new_oid); |
| new_refs++; |
| |
| fprintf(stderr, "updating '%s'", ref->name); |
| if (strcmp(ref->name, ref->peer_ref->name)) |
| fprintf(stderr, " using '%s'", ref->peer_ref->name); |
| fprintf(stderr, "\n from %s\n to %s\n", |
| oid_to_hex(&ref->old_oid), oid_to_hex(&ref->new_oid)); |
| if (dry_run) { |
| if (helper_status) |
| printf("ok %s\n", ref->name); |
| continue; |
| } |
| |
| /* Lock remote branch ref */ |
| ref_lock = lock_remote(ref->name, LOCK_TIME); |
| if (!ref_lock) { |
| fprintf(stderr, "Unable to lock remote branch %s\n", |
| ref->name); |
| if (helper_status) |
| printf("error %s lock error\n", ref->name); |
| rc = 1; |
| continue; |
| } |
| |
| /* Set up revision info for this refspec */ |
| strvec_push(&commit_argv, ""); /* ignored */ |
| strvec_push(&commit_argv, "--objects"); |
| strvec_push(&commit_argv, oid_to_hex(&ref->new_oid)); |
| if (!push_all && !is_null_oid(&ref->old_oid)) |
| strvec_pushf(&commit_argv, "^%s", |
| oid_to_hex(&ref->old_oid)); |
| repo_init_revisions(the_repository, &revs, setup_git_directory()); |
| setup_revisions(commit_argv.nr, commit_argv.v, &revs, NULL); |
| revs.edge_hint = 0; /* just in case */ |
| |
| /* Generate a list of objects that need to be pushed */ |
| pushing = 0; |
| if (prepare_revision_walk(&revs)) |
| die("revision walk setup failed"); |
| mark_edges_uninteresting(&revs, NULL, 0); |
| objects_to_send = get_delta(&revs, ref_lock); |
| finish_all_active_slots(); |
| |
| /* Push missing objects to remote, this would be a |
| convenient time to pack them first if appropriate. */ |
| pushing = 1; |
| if (objects_to_send) |
| fprintf(stderr, " sending %d objects\n", |
| objects_to_send); |
| |
| run_request_queue(); |
| |
| /* Update the remote branch if all went well */ |
| if (aborted || !update_remote(&ref->new_oid, ref_lock)) |
| rc = 1; |
| |
| if (!rc) |
| fprintf(stderr, " done\n"); |
| if (helper_status) |
| printf("%s %s\n", !rc ? "ok" : "error", ref->name); |
| unlock_remote(ref_lock); |
| check_locks(); |
| strvec_clear(&commit_argv); |
| release_revisions(&revs); |
| } |
| |
| /* Update remote server info if appropriate */ |
| if (repo->has_info_refs && new_refs) { |
| if (info_ref_lock && repo->can_update_info_refs) { |
| fprintf(stderr, "Updating remote server info\n"); |
| if (!dry_run) |
| update_remote_info_refs(info_ref_lock); |
| } else { |
| fprintf(stderr, "Unable to update server info\n"); |
| } |
| } |
| |
| cleanup: |
| if (info_ref_lock) |
| unlock_remote(info_ref_lock); |
| free(repo); |
| |
| http_cleanup(); |
| |
| request = request_queue_head; |
| while (request != NULL) { |
| next_request = request->next; |
| release_request(request); |
| request = next_request; |
| } |
| |
| return rc; |
| } |