GIT 1.6.2.3
[gitweb.git] / http-push.c
index cb5bf95a736c571259aef51884cc20e4169bf707..968b6b0662a89d437e53bcc699c65e98a745f659 100644 (file)
@@ -10,6 +10,7 @@
 #include "exec_cmd.h"
 #include "remote.h"
 #include "list-objects.h"
+#include "sigchain.h"
 
 #include <expat.h>
 
@@ -152,6 +153,7 @@ struct remote_lock
        char *url;
        char *owner;
        char *token;
+       char tmpfile_suffix[41];
        time_t start_time;
        long timeout;
        int refreshing;
@@ -177,6 +179,47 @@ struct remote_ls_ctx
        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 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 = NULL;
+
+       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 append_remote_object_url(struct strbuf *buf, const char *url,
+                                    const char *hex,
+                                    int only_two_digit_prefix)
+{
+       strbuf_addf(buf, "%sobjects/%.*s/", url, 2, hex);
+       if (!only_two_digit_prefix)
+               strbuf_addf(buf, "%s", hex+2);
+}
+
 static void finish_request(struct transfer_request *request);
 static void release_request(struct transfer_request *request);
 
@@ -189,6 +232,15 @@ static void process_response(void *callback_data)
 }
 
 #ifdef USE_CURL_MULTI
+
+static char *get_remote_object_url(const char *url, const char *hex,
+                                  int only_two_digit_prefix)
+{
+       struct strbuf buf = STRBUF_INIT;
+       append_remote_object_url(&buf, url, hex, only_two_digit_prefix);
+       return strbuf_detach(&buf, NULL);
+}
+
 static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
                               void *data)
 {
@@ -223,7 +275,6 @@ static void start_fetch_loose(struct transfer_request *request)
        char *filename;
        char prevfile[PATH_MAX];
        char *url;
-       char *posn;
        int prevlocal;
        unsigned char prev_buf[PREV_BUF_SIZE];
        ssize_t prev_read = 0;
@@ -273,17 +324,8 @@ static void start_fetch_loose(struct transfer_request *request)
 
        git_SHA1_Init(&request->c);
 
-       url = xmalloc(strlen(remote->url) + 50);
-       request->url = xmalloc(strlen(remote->url) + 50);
-       strcpy(url, remote->url);
-       posn = url + strlen(remote->url);
-       strcpy(posn, "objects/");
-       posn += 8;
-       memcpy(posn, hex, 2);
-       posn += 2;
-       *(posn++) = '/';
-       strcpy(posn, hex + 2);
-       strcpy(request->url, url);
+       url = get_remote_object_url(remote->url, hex, 0);
+       request->url = xstrdup(url);
 
        /* If a previous temp file is present, process what was already
           fetched. */
@@ -356,16 +398,8 @@ static void start_mkcol(struct transfer_request *request)
 {
        char *hex = sha1_to_hex(request->obj->sha1);
        struct active_request_slot *slot;
-       char *posn;
 
-       request->url = xmalloc(strlen(remote->url) + 13);
-       strcpy(request->url, remote->url);
-       posn = request->url + strlen(remote->url);
-       strcpy(posn, "objects/");
-       posn += 8;
-       memcpy(posn, hex, 2);
-       posn += 2;
-       strcpy(posn, "/");
+       request->url = get_remote_object_url(remote->url, hex, 1);
 
        slot = get_active_slot();
        slot->callback_func = process_response;
@@ -480,7 +514,7 @@ static void start_put(struct transfer_request *request)
 {
        char *hex = sha1_to_hex(request->obj->sha1);
        struct active_request_slot *slot;
-       char *posn;
+       struct strbuf buf = STRBUF_INIT;
        enum object_type type;
        char hdr[50];
        void *unpacked;
@@ -519,21 +553,13 @@ static void start_put(struct transfer_request *request)
 
        request->buffer.buf.len = stream.total_out;
 
-       request->url = xmalloc(strlen(remote->url) +
-                              strlen(request->lock->token) + 51);
-       strcpy(request->url, remote->url);
-       posn = request->url + strlen(remote->url);
-       strcpy(posn, "objects/");
-       posn += 8;
-       memcpy(posn, hex, 2);
-       posn += 2;
-       *(posn++) = '/';
-       strcpy(posn, hex + 2);
-       request->dest = xmalloc(strlen(request->url) + 14);
-       sprintf(request->dest, "Destination: %s", request->url);
-       posn += 38;
-       *(posn++) = '_';
-       strcpy(posn, request->lock->token);
+       strbuf_addstr(&buf, "Destination: ");
+       append_remote_object_url(&buf, remote->url, hex, 0);
+       request->dest = strbuf_detach(&buf, NULL);
+
+       append_remote_object_url(&buf, remote->url, hex, 0);
+       strbuf_add(&buf, request->lock->tmpfile_suffix, 41);
+       request->url = strbuf_detach(&buf, NULL);
 
        slot = get_active_slot();
        slot->callback_func = process_response;
@@ -588,18 +614,12 @@ static int refresh_lock(struct remote_lock *lock)
 {
        struct active_request_slot *slot;
        struct slot_results results;
-       char *if_header;
-       char timeout_header[25];
-       struct curl_slist *dav_headers = NULL;
+       struct curl_slist *dav_headers;
        int rc = 0;
 
        lock->refreshing = 1;
 
-       if_header = xmalloc(strlen(lock->token) + 25);
-       sprintf(if_header, "If: (<%s>)", lock->token);
-       sprintf(timeout_header, "Timeout: Second-%ld", lock->timeout);
-       dav_headers = curl_slist_append(dav_headers, if_header);
-       dav_headers = curl_slist_append(dav_headers, timeout_header);
+       dav_headers = get_dav_token_headers(lock, DAV_HEADER_IF | DAV_HEADER_TIMEOUT);
 
        slot = get_active_slot();
        slot->results = &results;
@@ -622,7 +642,6 @@ static int refresh_lock(struct remote_lock *lock)
 
        lock->refreshing = 0;
        curl_slist_free_all(dav_headers);
-       free(if_header);
 
        return rc;
 }
@@ -729,7 +748,6 @@ static void finish_request(struct transfer_request *request)
                        aborted = 1;
                }
        } else if (request->state == RUN_FETCH_LOOSE) {
-               fchmod(request->local_fileno, 0444);
                close(request->local_fileno); request->local_fileno = -1;
 
                if (request->curl_result != CURLE_OK &&
@@ -1111,6 +1129,8 @@ static void handle_lockprop_ctx(struct xml_ctx *ctx, int tag_closed)
 static void handle_new_lock_ctx(struct xml_ctx *ctx, int tag_closed)
 {
        struct remote_lock *lock = (struct remote_lock *)ctx->userData;
+       git_SHA_CTX sha_ctx;
+       unsigned char lock_token_sha1[20];
 
        if (tag_closed && ctx->cdata) {
                if (!strcmp(ctx->name, DAV_ACTIVELOCK_OWNER)) {
@@ -1123,6 +1143,13 @@ static void handle_new_lock_ctx(struct xml_ctx *ctx, int tag_closed)
                } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TOKEN)) {
                        lock->token = xmalloc(strlen(ctx->cdata) + 1);
                        strcpy(lock->token, ctx->cdata);
+
+                       git_SHA1_Init(&sha_ctx);
+                       git_SHA1_Update(&sha_ctx, lock->token, strlen(lock->token));
+                       git_SHA1_Final(lock_token_sha1, &sha_ctx);
+
+                       lock->tmpfile_suffix[0] = '_';
+                       memcpy(lock->tmpfile_suffix + 1, sha1_to_hex(lock_token_sha1), 40);
                }
        }
 }
@@ -1303,14 +1330,10 @@ static int unlock_remote(struct remote_lock *lock)
        struct active_request_slot *slot;
        struct slot_results results;
        struct remote_lock *prev = remote->locks;
-       char *lock_token_header;
-       struct curl_slist *dav_headers = NULL;
+       struct curl_slist *dav_headers;
        int rc = 0;
 
-       lock_token_header = xmalloc(strlen(lock->token) + 31);
-       sprintf(lock_token_header, "Lock-Token: <%s>",
-               lock->token);
-       dav_headers = curl_slist_append(dav_headers, lock_token_header);
+       dav_headers = get_dav_token_headers(lock, DAV_HEADER_LOCK);
 
        slot = get_active_slot();
        slot->results = &results;
@@ -1331,7 +1354,6 @@ static int unlock_remote(struct remote_lock *lock)
        }
 
        curl_slist_free_all(dav_headers);
-       free(lock_token_header);
 
        if (remote->locks == lock) {
                remote->locks = lock->next;
@@ -1364,7 +1386,7 @@ static void remove_locks(void)
 static void remove_locks_on_signal(int signo)
 {
        remove_locks();
-       signal(signo, SIG_DFL);
+       sigchain_pop(signo);
        raise(signo);
 }
 
@@ -1731,13 +1753,10 @@ static int update_remote(unsigned char *sha1, struct remote_lock *lock)
 {
        struct active_request_slot *slot;
        struct slot_results results;
-       char *if_header;
        struct buffer out_buffer = { STRBUF_INIT, 0 };
-       struct curl_slist *dav_headers = NULL;
+       struct curl_slist *dav_headers;
 
-       if_header = xmalloc(strlen(lock->token) + 25);
-       sprintf(if_header, "If: (<%s>)", lock->token);
-       dav_headers = curl_slist_append(dav_headers, if_header);
+       dav_headers = get_dav_token_headers(lock, DAV_HEADER_IF);
 
        strbuf_addf(&out_buffer.buf, "%s\n", sha1_to_hex(sha1));
 
@@ -1756,7 +1775,6 @@ static int update_remote(unsigned char *sha1, struct remote_lock *lock)
        if (start_active_slot(slot)) {
                run_active_slot(slot);
                strbuf_release(&out_buffer.buf);
-               free(if_header);
                if (results.curl_result != CURLE_OK) {
                        fprintf(stderr,
                                "PUT error: curl result=%d, HTTP code=%ld\n",
@@ -1766,7 +1784,6 @@ static int update_remote(unsigned char *sha1, struct remote_lock *lock)
                }
        } else {
                strbuf_release(&out_buffer.buf);
-               free(if_header);
                fprintf(stderr, "Unable to start PUT request\n");
                return 0;
        }
@@ -1948,15 +1965,12 @@ 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;
-       char *if_header;
-       struct curl_slist *dav_headers = NULL;
+       struct curl_slist *dav_headers;
 
        remote_ls("refs/", (PROCESS_FILES | RECURSIVE),
                  add_remote_info_ref, &buffer.buf);
        if (!aborted) {
-               if_header = xmalloc(strlen(lock->token) + 25);
-               sprintf(if_header, "If: (<%s>)", lock->token);
-               dav_headers = curl_slist_append(dav_headers, if_header);
+               dav_headers = get_dav_token_headers(lock, DAV_HEADER_IF);
 
                slot = get_active_slot();
                slot->results = &results;
@@ -1978,7 +1992,6 @@ static void update_remote_info_refs(struct remote_lock *lock)
                                        results.curl_result, results.http_code);
                        }
                }
-               free(if_header);
        }
        strbuf_release(&buffer.buf);
 }
@@ -2184,6 +2197,8 @@ int main(int argc, char **argv)
        struct ref *ref;
        char *rewritten_url = NULL;
 
+       git_extract_argv0_path(argv[0]);
+
        setup_git_directory();
 
        remote = xcalloc(sizeof(*remote), 1);
@@ -2266,10 +2281,7 @@ int main(int argc, char **argv)
                goto cleanup;
        }
 
-       signal(SIGINT, remove_locks_on_signal);
-       signal(SIGHUP, remove_locks_on_signal);
-       signal(SIGQUIT, remove_locks_on_signal);
-       signal(SIGTERM, remove_locks_on_signal);
+       sigchain_push_common(remove_locks_on_signal);
 
        /* Check whether the remote has server info files */
        remote->can_update_info_refs = 0;