#include "fetch.h"
#include "tag.h"
#include "blob.h"
+#include "http.h"
-#include <curl/curl.h>
-#include <curl/easy.h>
-#include "expat.h"
+#include <expat.h>
static const char http_push_usage[] =
"git-http-push [--complete] [--force] [--verbose] <url> <ref> [<ref>...]\n";
-#if LIBCURL_VERSION_NUM >= 0x070908
-#define USE_CURL_MULTI
-#define DEFAULT_MAX_REQUESTS 5
-#endif
-
-#if LIBCURL_VERSION_NUM < 0x070704
-#define curl_global_cleanup() do { /* nothing */ } while(0)
-#endif
-#if LIBCURL_VERSION_NUM < 0x070800
-#define curl_global_init(a) do { /* nothing */ } while(0)
-#endif
-
-#if LIBCURL_VERSION_NUM < 0x070c04
-#define NO_CURL_EASY_DUPHANDLE
+#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 RANGE_HEADER_SIZE 30
-/* DAV method names and request body templates */
+/* 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"
+
+/* 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"
+
+/* DAV request body templates */
#define PROPFIND_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 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>"
-static int active_requests = 0;
-static int data_received;
+#define LOCK_TIME 600
+#define LOCK_REFRESH 30
+
static int pushing = 0;
static int aborted = 0;
+static char remote_dir_exists[256];
-#ifdef USE_CURL_MULTI
-static int max_requests = -1;
-static CURLM *curlm;
-#endif
-#ifndef NO_CURL_EASY_DUPHANDLE
-static CURL *curl_default;
-#endif
static struct curl_slist *no_pragma_header;
static struct curl_slist *default_headers;
-static char curl_errorstr[CURL_ERROR_SIZE];
-static char *lock_token = NULL;
static int push_verbosely = 0;
static int push_all = 0;
static int force_all = 0;
-struct buffer
-{
- size_t posn;
- size_t size;
- void *buffer;
-};
-
struct repo
{
char *url;
unsigned char sha1[20];
char *url;
char *dest;
- char *lock_token;
+ struct active_lock *lock;
struct curl_slist *headers;
struct buffer buffer;
char filename[PATH_MAX];
struct transfer_request *next;
};
-struct active_request_slot
-{
- CURL *curl;
- FILE *local;
- int in_use;
- int done;
- CURLcode curl_result;
- long http_code;
- struct active_request_slot *next;
-};
-
static struct transfer_request *request_queue_head = NULL;
-static struct active_request_slot *active_queue_head = NULL;
-
-static int curl_ssl_verify = -1;
-static char *ssl_cert = NULL;
-#if LIBCURL_VERSION_NUM >= 0x070902
-static char *ssl_key = NULL;
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070908
-static char *ssl_capath = NULL;
-#endif
-static char *ssl_cainfo = NULL;
-static long curl_low_speed_limit = -1;
-static long curl_low_speed_time = -1;
-struct lockprop
+struct xml_ctx
{
- int supported_lock;
- int lock_entry;
- int lock_scope;
- int lock_type;
- int lock_exclusive;
- int lock_exclusive_write;
+ char *name;
+ int len;
+ char *cdata;
+ void (*userFunc)(struct xml_ctx *ctx, int tag_closed);
+ void *userData;
};
-static int http_options(const char *var, const char *value)
-{
- if (!strcmp("http.sslverify", var)) {
- if (curl_ssl_verify == -1) {
- curl_ssl_verify = git_config_bool(var, value);
- }
- return 0;
- }
-
- if (!strcmp("http.sslcert", var)) {
- if (ssl_cert == NULL) {
- ssl_cert = xmalloc(strlen(value)+1);
- strcpy(ssl_cert, value);
- }
- return 0;
- }
-#if LIBCURL_VERSION_NUM >= 0x070902
- if (!strcmp("http.sslkey", var)) {
- if (ssl_key == NULL) {
- ssl_key = xmalloc(strlen(value)+1);
- strcpy(ssl_key, value);
- }
- return 0;
- }
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070908
- if (!strcmp("http.sslcapath", var)) {
- if (ssl_capath == NULL) {
- ssl_capath = xmalloc(strlen(value)+1);
- strcpy(ssl_capath, value);
- }
- return 0;
- }
-#endif
- if (!strcmp("http.sslcainfo", var)) {
- if (ssl_cainfo == NULL) {
- ssl_cainfo = xmalloc(strlen(value)+1);
- strcpy(ssl_cainfo, value);
- }
- return 0;
- }
-
-#ifdef USE_CURL_MULTI
- if (!strcmp("http.maxrequests", var)) {
- if (max_requests == -1)
- max_requests = git_config_int(var, value);
- return 0;
- }
-#endif
-
- if (!strcmp("http.lowspeedlimit", var)) {
- if (curl_low_speed_limit == -1)
- curl_low_speed_limit = (long)git_config_int(var, value);
- return 0;
- }
- if (!strcmp("http.lowspeedtime", var)) {
- if (curl_low_speed_time == -1)
- curl_low_speed_time = (long)git_config_int(var, value);
- return 0;
- }
-
- /* Fall back on the default ones */
- return git_default_config(var, value);
-}
-
-static size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb,
- struct buffer *buffer)
+struct active_lock
{
- size_t size = eltsize * nmemb;
- if (size > buffer->size - buffer->posn)
- size = buffer->size - buffer->posn;
- memcpy(ptr, buffer->buffer + buffer->posn, size);
- buffer->posn += size;
- return size;
-}
-
-static size_t fwrite_buffer_dynamic(const void *ptr, size_t eltsize,
- size_t nmemb, struct buffer *buffer)
-{
- size_t size = eltsize * nmemb;
- if (size > buffer->size - buffer->posn) {
- buffer->size = buffer->size * 3 / 2;
- if (buffer->size < buffer->posn + size)
- buffer->size = buffer->posn + size;
- buffer->buffer = xrealloc(buffer->buffer, buffer->size);
- }
- memcpy(buffer->buffer + buffer->posn, ptr, size);
- buffer->posn += size;
- data_received++;
- return size;
-}
-
-static size_t fwrite_null(const void *ptr, size_t eltsize,
- size_t nmemb, struct buffer *buffer)
-{
- data_received++;
- return eltsize * nmemb;
-}
-
-#ifdef USE_CURL_MULTI
-static void process_curl_messages(void);
-static void process_request_queue(void);
-#endif
-
-static CURL* get_curl_handle(void)
-{
- CURL* result = curl_easy_init();
-
- curl_easy_setopt(result, CURLOPT_SSL_VERIFYPEER, curl_ssl_verify);
-#if LIBCURL_VERSION_NUM >= 0x070907
- curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
-#endif
-
- if (ssl_cert != NULL)
- curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert);
-#if LIBCURL_VERSION_NUM >= 0x070902
- if (ssl_key != NULL)
- curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key);
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070908
- if (ssl_capath != NULL)
- curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath);
-#endif
- if (ssl_cainfo != NULL)
- curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo);
- curl_easy_setopt(result, CURLOPT_FAILONERROR, 1);
-
- if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) {
- curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT,
- curl_low_speed_limit);
- curl_easy_setopt(result, CURLOPT_LOW_SPEED_TIME,
- curl_low_speed_time);
- }
-
- return result;
-}
-
-static struct active_request_slot *get_active_slot(void)
-{
- struct active_request_slot *slot = active_queue_head;
- struct active_request_slot *newslot;
-
-#ifdef USE_CURL_MULTI
- int num_transfers;
-
- /* Wait for a slot to open up if the queue is full */
- while (active_requests >= max_requests) {
- curl_multi_perform(curlm, &num_transfers);
- if (num_transfers < active_requests) {
- process_curl_messages();
- }
- }
-#endif
-
- while (slot != NULL && slot->in_use) {
- slot = slot->next;
- }
- if (slot == NULL) {
- newslot = xmalloc(sizeof(*newslot));
- newslot->curl = NULL;
- newslot->in_use = 0;
- newslot->next = NULL;
-
- slot = active_queue_head;
- if (slot == NULL) {
- active_queue_head = newslot;
- } else {
- while (slot->next != NULL) {
- slot = slot->next;
- }
- slot->next = newslot;
- }
- slot = newslot;
- }
-
- if (slot->curl == NULL) {
-#ifdef NO_CURL_EASY_DUPHANDLE
- slot->curl = get_curl_handle();
-#else
- slot->curl = curl_easy_duphandle(curl_default);
-#endif
- }
-
- active_requests++;
- slot->in_use = 1;
- slot->done = 0;
- slot->local = NULL;
- curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, default_headers);
- curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr);
+ char *url;
+ char *owner;
+ char *token;
+ time_t start_time;
+ long timeout;
+ int refreshing;
+};
- return slot;
-}
+static void finish_request(struct transfer_request *request);
-static int start_active_slot(struct active_request_slot *slot)
+static void process_response(void *callback_data)
{
-#ifdef USE_CURL_MULTI
- CURLMcode curlm_result = curl_multi_add_handle(curlm, slot->curl);
+ struct transfer_request *request =
+ (struct transfer_request *)callback_data;
- if (curlm_result != CURLM_OK &&
- curlm_result != CURLM_CALL_MULTI_PERFORM) {
- active_requests--;
- slot->in_use = 0;
- return 0;
- }
-#endif
- return 1;
-}
-
-static void run_active_slot(struct active_request_slot *slot)
-{
-#ifdef USE_CURL_MULTI
- int num_transfers;
- long last_pos = 0;
- long current_pos;
- fd_set readfds;
- fd_set writefds;
- fd_set excfds;
- int max_fd;
- struct timeval select_timeout;
- CURLMcode curlm_result;
-
- while (!slot->done) {
- data_received = 0;
- do {
- curlm_result = curl_multi_perform(curlm,
- &num_transfers);
- } while (curlm_result == CURLM_CALL_MULTI_PERFORM);
- if (num_transfers < active_requests) {
- process_curl_messages();
- process_request_queue();
- }
-
- if (!data_received && slot->local != NULL) {
- current_pos = ftell(slot->local);
- if (current_pos > last_pos)
- data_received++;
- last_pos = current_pos;
- }
-
- if (!slot->done && !data_received) {
- max_fd = 0;
- FD_ZERO(&readfds);
- FD_ZERO(&writefds);
- FD_ZERO(&excfds);
- select_timeout.tv_sec = 0;
- select_timeout.tv_usec = 50000;
- select(max_fd, &readfds, &writefds,
- &excfds, &select_timeout);
- }
- }
-#else
- slot->curl_result = curl_easy_perform(slot->curl);
- active_requests--;
-#endif
+ finish_request(request);
}
static void start_check(struct transfer_request *request)
strcpy(posn, hex + 2);
slot = get_active_slot();
+ slot->callback_func = process_response;
+ slot->callback_data = request;
curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr);
curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
} else {
request->state = ABORTED;
free(request->url);
+ request->url = NULL;
}
}
strcpy(posn, "/");
slot = get_active_slot();
+ slot->callback_func = process_response;
+ slot->callback_data = request;
curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); /* undo PUT setup */
curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr);
} else {
request->state = ABORTED;
free(request->url);
+ request->url = NULL;
}
}
request->buffer.size = stream.total_out;
request->buffer.posn = 0;
- if (request->url != NULL)
- free(request->url);
request->url = xmalloc(strlen(remote->url) +
- strlen(request->lock_token) + 51);
+ strlen(request->lock->token) + 51);
strcpy(request->url, remote->url);
posn = request->url + strlen(remote->url);
strcpy(posn, "objects/");
sprintf(request->dest, "Destination: %s", request->url);
posn += 38;
*(posn++) = '.';
- strcpy(posn, request->lock_token);
+ strcpy(posn, request->lock->token);
slot = get_active_slot();
+ slot->callback_func = process_response;
+ slot->callback_data = request;
curl_easy_setopt(slot->curl, CURLOPT_INFILE, &request->buffer);
curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, request->buffer.size);
curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
} else {
request->state = ABORTED;
free(request->url);
+ request->url = NULL;
}
}
struct curl_slist *dav_headers = NULL;
slot = get_active_slot();
+ slot->callback_func = process_response;
+ slot->callback_data = request;
curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); /* undo PUT setup */
curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MOVE);
dav_headers = curl_slist_append(dav_headers, request->dest);
} else {
request->state = ABORTED;
free(request->url);
+ request->url = NULL;
}
}
+static int refresh_lock(struct active_lock *lock)
+{
+ struct active_request_slot *slot;
+ char *if_header;
+ char timeout_header[25];
+ struct curl_slist *dav_headers = NULL;
+ int rc = 0;
+
+ lock->refreshing = 1;
+
+ if_header = xmalloc(strlen(lock->token) + 25);
+ sprintf(if_header, "If: (<opaquelocktoken:%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);
+
+ slot = get_active_slot();
+ curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
+ curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
+ curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
+ curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK);
+ curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
+
+ if (start_active_slot(slot)) {
+ run_active_slot(slot);
+ if (slot->curl_result != CURLE_OK) {
+ fprintf(stderr, "Got HTTP error %ld\n", slot->http_code);
+ } else {
+ lock->start_time = time(NULL);
+ rc = 1;
+ }
+ }
+
+ lock->refreshing = 0;
+ curl_slist_free_all(dav_headers);
+ free(if_header);
+
+ return rc;
+}
+
static void finish_request(struct transfer_request *request)
{
+ time_t current_time = time(NULL);
+ int time_remaining;
+
request->curl_result = request->slot->curl_result;
request->http_code = request->slot->http_code;
request->slot = NULL;
+
+ /* Refresh the lock if it is close to timing out */
+ time_remaining = request->lock->start_time + request->lock->timeout
+ - current_time;
+ if (time_remaining < LOCK_REFRESH && !request->lock->refreshing) {
+ if (!refresh_lock(request->lock)) {
+ fprintf(stderr, "Unable to refresh remote lock\n");
+ aborted = 1;
+ }
+ }
+
if (request->headers != NULL)
curl_slist_free_all(request->headers);
+
+ /* URL is reused for MOVE after PUT */
+ if (request->state != RUN_PUT) {
+ free(request->url);
+ request->url = NULL;
+ }
+
if (request->state == RUN_HEAD) {
if (request->http_code == 404) {
request->state = NEED_PUSH;
} else if (request->curl_result == CURLE_OK) {
+ remote_dir_exists[request->sha1[0]] = 1;
request->state = COMPLETE;
} else {
fprintf(stderr, "HEAD %s failed, aborting (%d/%ld)\n",
} else if (request->state == RUN_MKCOL) {
if (request->curl_result == CURLE_OK ||
request->http_code == 405) {
+ remote_dir_exists[request->sha1[0]] = 1;
start_put(request);
} else {
fprintf(stderr, "MKCOL %s failed, aborting (%d/%ld)\n",
entry->next = entry->next->next;
}
- free(request->url);
+ if (request->url != NULL)
+ free(request->url);
free(request);
}
-#ifdef USE_CURL_MULTI
-void process_curl_messages(void)
-{
- int num_messages;
- struct active_request_slot *slot;
- struct transfer_request *request = NULL;
- CURLMsg *curl_message = curl_multi_info_read(curlm, &num_messages);
-
- while (curl_message != NULL) {
- if (curl_message->msg == CURLMSG_DONE) {
- slot = active_queue_head;
- while (slot != NULL &&
- slot->curl != curl_message->easy_handle)
- slot = slot->next;
- if (slot != NULL) {
- curl_multi_remove_handle(curlm, slot->curl);
- active_requests--;
- slot->done = 1;
- slot->in_use = 0;
- slot->curl_result = curl_message->data.result;
- curl_easy_getinfo(slot->curl,
- CURLINFO_HTTP_CODE,
- &slot->http_code);
- request = request_queue_head;
- while (request != NULL &&
- request->slot != slot)
- request = request->next;
- if (request != NULL)
- finish_request(request);
- } else {
- fprintf(stderr, "Received DONE message for unknown request!\n");
- }
- } else {
- fprintf(stderr, "Unknown CURL message received: %d\n",
- (int)curl_message->msg);
- }
- curl_message = curl_multi_info_read(curlm, &num_messages);
- }
-}
-
-void process_request_queue(void)
+void fill_active_slots(void)
{
struct transfer_request *request = request_queue_head;
struct active_request_slot *slot = active_queue_head;
start_check(request);
curl_multi_perform(curlm, &num_transfers);
} else if (pushing && request->state == NEED_PUSH) {
- start_mkcol(request);
+ if (remote_dir_exists[request->sha1[0]])
+ start_put(request);
+ else
+ start_mkcol(request);
curl_multi_perform(curlm, &num_transfers);
}
request = request->next;
slot = slot->next;
}
}
-#endif
-
-void process_waiting_requests(void)
-{
- struct active_request_slot *slot = active_queue_head;
-
- while (slot != NULL)
- if (slot->in_use) {
- run_active_slot(slot);
- slot = active_queue_head;
- } else {
- slot = slot->next;
- }
-}
-void add_request(unsigned char *sha1, char *lock_token)
+static void add_request(unsigned char *sha1, struct active_lock *lock)
{
struct transfer_request *request = request_queue_head;
struct packed_git *target;
request = xmalloc(sizeof(*request));
memcpy(request->sha1, sha1, 20);
request->url = NULL;
- request->lock_token = lock_token;
+ request->lock = lock;
request->headers = NULL;
request->state = NEED_CHECK;
request->next = request_queue_head;
request_queue_head = request;
-#ifdef USE_CURL_MULTI
- process_request_queue();
- process_curl_messages();
-#endif
+
+ fill_active_slots();
+ step_active_slots();
}
static int fetch_index(unsigned char *sha1)
}
} else {
free(url);
+ fclose(indexfile);
return error("Unable to start request");
}
return 0;
}
-static int fetch_indices()
+static int fetch_indices(void)
{
unsigned char sha1[20];
char *url;
slot = get_active_slot();
curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
- curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION,
- fwrite_buffer_dynamic);
+ curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
curl_easy_setopt(slot->curl, CURLOPT_URL, url);
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
if (start_active_slot(slot)) {
url = quote_ref_url(base, ref);
slot = get_active_slot();
curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
- curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION,
- fwrite_buffer_dynamic);
+ curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
curl_easy_setopt(slot->curl, CURLOPT_URL, url);
if (start_active_slot(slot)) {
return 0;
}
-static void
-start_lockprop_element(void *userData, const char *name, const char **atts)
+static void handle_lockprop_ctx(struct xml_ctx *ctx, int tag_closed)
{
- struct lockprop *prop = (struct lockprop *)userData;
+ int *lock_flags = (int *)ctx->userData;
- if (prop->lock_type && !strcmp(name, "D:write")) {
- if (prop->lock_exclusive) {
- prop->lock_exclusive_write = 1;
- }
- } else if (prop->lock_scope && !strcmp(name, "D:exclusive")) {
- prop->lock_exclusive = 1;
- } else if (prop->lock_entry) {
- if (!strcmp(name, "D:lockscope")) {
- prop->lock_scope = 1;
- } else if (!strcmp(name, "D:locktype")) {
- prop->lock_type = 1;
+ 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;
}
- } else if (prop->supported_lock) {
- if (!strcmp(name, "D:lockentry")) {
- prop->lock_entry = 1;
+ }
+}
+
+static void handle_new_lock_ctx(struct xml_ctx *ctx, int tag_closed)
+{
+ struct active_lock *lock = (struct active_lock *)ctx->userData;
+
+ if (tag_closed && ctx->cdata) {
+ if (!strcmp(ctx->name, DAV_ACTIVELOCK_OWNER)) {
+ lock->owner = xmalloc(strlen(ctx->cdata) + 1);
+ strcpy(lock->owner, ctx->cdata);
+ } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TIMEOUT)) {
+ if (!strncmp(ctx->cdata, "Second-", 7))
+ lock->timeout =
+ strtol(ctx->cdata + 7, NULL, 10);
+ } else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TOKEN)) {
+ if (!strncmp(ctx->cdata, "opaquelocktoken:", 16)) {
+ lock->token = xmalloc(strlen(ctx->cdata) - 15);
+ strcpy(lock->token, ctx->cdata + 16);
+ }
}
- } else if (!strcmp(name, "D:supportedlock")) {
- prop->supported_lock = 1;
}
}
static void
-end_lockprop_element(void *userData, const char *name)
+xml_start_tag(void *userData, const char *name, const char **atts)
{
- struct lockprop *prop = (struct lockprop *)userData;
-
- if (!strcmp(name, "D:lockentry")) {
- prop->lock_entry = 0;
- prop->lock_scope = 0;
- prop->lock_type = 0;
- prop->lock_exclusive = 0;
- } else if (!strcmp(name, "D:supportedlock")) {
- prop->supported_lock = 0;
+ struct xml_ctx *ctx = (struct xml_ctx *)userData;
+ const char *c = index(name, ':');
+ int new_len;
+
+ if (c == NULL)
+ c = name;
+ else
+ c++;
+
+ new_len = strlen(ctx->name) + strlen(c) + 2;
+
+ if (new_len > ctx->len) {
+ ctx->name = xrealloc(ctx->name, new_len);
+ ctx->len = new_len;
+ }
+ strcat(ctx->name, ".");
+ strcat(ctx->name, c);
+
+ if (ctx->cdata) {
+ free(ctx->cdata);
+ ctx->cdata = NULL;
}
+
+ ctx->userFunc(ctx, 0);
}
-size_t process_lock_header( void *ptr, size_t size, size_t nmemb, void *stream)
+static void
+xml_end_tag(void *userData, const char *name)
{
- size_t header_size = size*nmemb;
- char *start;
- char *end;
-
- if (!strncmp(ptr, "Lock-Token: <opaquelocktoken:", 29)) {
- start = ptr + 29;
- for (end = ptr + header_size;
- *(end - 1) == '\r' || *(end - 1) == '\n' || *(end - 1) == '>';
- end--) {}
- if (end > start) {
- lock_token = xmalloc(end - start + 1);
- memcpy(lock_token, start, end - start);
- lock_token[end - start] = 0;
- }
- }
+ struct xml_ctx *ctx = (struct xml_ctx *)userData;
+ const char *c = index(name, ':');
+ char *ep;
- return header_size;
+ ctx->userFunc(ctx, 1);
+
+ if (c == NULL)
+ 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;
+ if (ctx->cdata)
+ free(ctx->cdata);
+ ctx->cdata = xcalloc(len+1, 1);
+ strncpy(ctx->cdata, s, len);
}
-char *lock_remote(char *file, int timeout)
+static struct active_lock *lock_remote(char *file, long timeout)
{
struct active_request_slot *slot;
struct buffer out_buffer;
+ struct buffer in_buffer;
char *out_data;
+ char *in_data;
char *url;
+ char *ep;
char timeout_header[25];
+ struct active_lock *new_lock = NULL;
+ XML_Parser parser = XML_ParserCreate(NULL);
+ enum XML_Status result;
struct curl_slist *dav_headers = NULL;
+ struct xml_ctx ctx;
- if (lock_token != NULL)
- free(lock_token);
+ url = xmalloc(strlen(remote->url) + strlen(file) + 1);
+ sprintf(url, "%s%s", remote->url, file);
+
+ /* Make sure leading directories exist for the remote ref */
+ ep = strchr(url + strlen(remote->url) + 11, '/');
+ while (ep) {
+ *ep = 0;
+ slot = get_active_slot();
+ curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
+ curl_easy_setopt(slot->curl, CURLOPT_URL, url);
+ curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MKCOL);
+ curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
+ if (start_active_slot(slot)) {
+ run_active_slot(slot);
+ if (slot->curl_result != CURLE_OK &&
+ slot->http_code != 405) {
+ fprintf(stderr,
+ "Unable to create branch path %s\n",
+ url);
+ free(url);
+ return NULL;
+ }
+ } else {
+ fprintf(stderr, "Unable to start request\n");
+ free(url);
+ return NULL;
+ }
+ *ep = '/';
+ ep = strchr(ep + 1, '/');
+ }
out_buffer.size = strlen(LOCK_REQUEST) + strlen(git_default_email) - 2;
out_data = xmalloc(out_buffer.size + 1);
out_buffer.posn = 0;
out_buffer.buffer = out_data;
- sprintf(timeout_header, "Timeout: Second-%d", timeout);
- url = xmalloc(strlen(remote->url) + strlen(file) + 1);
- sprintf(url, "%s%s", remote->url, file);
+ in_buffer.size = 4096;
+ in_data = xmalloc(in_buffer.size);
+ in_buffer.posn = 0;
+ in_buffer.buffer = in_data;
+
+ sprintf(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");
curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.size);
curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
- curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
- curl_easy_setopt(slot->curl, CURLOPT_HEADERFUNCTION,
- process_lock_header);
+ curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
+ curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
curl_easy_setopt(slot->curl, CURLOPT_URL, url);
curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_LOCK);
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
+ new_lock = xcalloc(1, sizeof(*new_lock));
+ new_lock->owner = NULL;
+ new_lock->token = NULL;
+ new_lock->timeout = -1;
+ new_lock->refreshing = 0;
+
if (start_active_slot(slot)) {
run_active_slot(slot);
- free(out_data);
- if (slot->curl_result != CURLE_OK) {
- fprintf(stderr, "Got HTTP error %ld\n", slot->http_code);
- return NULL;
+ if (slot->curl_result == CURLE_OK) {
+ ctx.name = xcalloc(10, 1);
+ ctx.len = 0;
+ ctx.cdata = NULL;
+ ctx.userFunc = handle_new_lock_ctx;
+ ctx.userData = new_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.buffer,
+ in_buffer.posn, 1);
+ free(ctx.name);
+ if (result != XML_STATUS_OK) {
+ fprintf(stderr, "XML error: %s\n",
+ XML_ErrorString(
+ XML_GetErrorCode(parser)));
+ new_lock->timeout = -1;
+ }
}
} else {
- free(out_data);
fprintf(stderr, "Unable to start request\n");
}
- return strdup(lock_token);
+ curl_slist_free_all(dav_headers);
+ free(out_data);
+ free(in_data);
+
+ if (new_lock->token == NULL || new_lock->timeout <= 0) {
+ if (new_lock->token != NULL)
+ free(new_lock->token);
+ if (new_lock->owner != NULL)
+ free(new_lock->owner);
+ free(url);
+ free(new_lock);
+ new_lock = NULL;
+ } else {
+ new_lock->url = url;
+ new_lock->start_time = time(NULL);
+ }
+
+ return new_lock;
}
-int unlock_remote(char *file, char *lock_token)
+static int unlock_remote(struct active_lock *lock)
{
struct active_request_slot *slot;
- char *url;
char *lock_token_header;
struct curl_slist *dav_headers = NULL;
int rc = 0;
- if (lock_token == NULL) {
- fprintf(stderr, "Unable to unlock, no lock token");
- return 0;
- }
-
- lock_token_header = xmalloc(strlen(lock_token) + 31);
+ lock_token_header = xmalloc(strlen(lock->token) + 31);
sprintf(lock_token_header, "Lock-Token: <opaquelocktoken:%s>",
- lock_token);
- url = xmalloc(strlen(remote->url) + strlen(file) + 1);
- sprintf(url, "%s%s", remote->url, file);
+ lock->token);
dav_headers = curl_slist_append(dav_headers, lock_token_header);
slot = get_active_slot();
curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
- curl_easy_setopt(slot->curl, CURLOPT_URL, url);
+ curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_UNLOCK);
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
curl_slist_free_all(dav_headers);
free(lock_token_header);
- free(url);
+
+ if (lock->owner != NULL)
+ free(lock->owner);
+ free(lock->url);
+ free(lock->token);
+ free(lock);
return rc;
}
-int check_locking()
+static int locking_available(void)
{
struct active_request_slot *slot;
struct buffer in_buffer;
char *out_data;
XML_Parser parser = XML_ParserCreate(NULL);
enum XML_Status result;
- struct lockprop supported_lock;
struct curl_slist *dav_headers = NULL;
+ struct xml_ctx ctx;
+ int lock_flags = 0;
out_buffer.size = strlen(PROPFIND_REQUEST) + strlen(remote->url) - 2;
out_data = xmalloc(out_buffer.size + 1);
curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.size);
curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
curl_easy_setopt(slot->curl, CURLOPT_FILE, &in_buffer);
- curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION,
- fwrite_buffer_dynamic);
+ curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
curl_easy_setopt(slot->curl, CURLOPT_URL, remote->url);
curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PROPFIND);
if (start_active_slot(slot)) {
run_active_slot(slot);
- free(out_data);
- if (slot->curl_result != CURLE_OK) {
- free(in_buffer.buffer);
- return -1;
+ if (slot->curl_result == CURLE_OK) {
+ 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.buffer,
+ in_buffer.posn, 1);
+ free(ctx.name);
+
+ if (result != XML_STATUS_OK) {
+ fprintf(stderr, "XML error: %s\n",
+ XML_ErrorString(
+ XML_GetErrorCode(parser)));
+ lock_flags = 0;
+ }
}
-
- XML_SetUserData(parser, &supported_lock);
- XML_SetElementHandler(parser, start_lockprop_element,
- end_lockprop_element);
- result = XML_Parse(parser, in_buffer.buffer, in_buffer.posn, 1);
- free(in_buffer.buffer);
- if (result != XML_STATUS_OK)
- return error("%s", XML_ErrorString(
- XML_GetErrorCode(parser)));
} else {
- free(out_data);
- free(in_buffer.buffer);
- return error("Unable to start request");
+ fprintf(stderr, "Unable to start request\n");
}
- if (supported_lock.lock_exclusive_write)
- return 0;
- else
- return 1;
+ free(out_data);
+ free(in_buffer.buffer);
+ curl_slist_free_all(dav_headers);
+
+ return lock_flags;
}
-int is_ancestor(unsigned char *sha1, struct commit *commit)
+static int is_ancestor(unsigned char *sha1, struct commit *commit)
{
struct commit_list *parents;
return 0;
}
-void get_delta(unsigned char *sha1, struct object *obj, char *lock_token)
+static void get_delta(unsigned char *sha1, struct object *obj,
+ struct active_lock *lock)
{
struct commit *commit;
struct commit_list *parents;
if (obj->type == commit_type) {
if (push_verbosely)
fprintf(stderr, "walk %s\n", sha1_to_hex(obj->sha1));
- add_request(obj->sha1, lock_token);
+ add_request(obj->sha1, lock);
commit = (struct commit *)obj;
if (parse_commit(commit)) {
fprintf(stderr, "Error parsing commit %s\n",
if (sha1 == NULL ||
memcmp(sha1, parents->item->object.sha1, 20))
get_delta(sha1, &parents->item->object,
- lock_token);
- get_delta(sha1, &commit->tree->object, lock_token);
+ lock);
+ get_delta(sha1, &commit->tree->object, lock);
} else if (obj->type == tree_type) {
if (push_verbosely)
fprintf(stderr, "walk %s\n", sha1_to_hex(obj->sha1));
- add_request(obj->sha1, lock_token);
+ add_request(obj->sha1, lock);
tree = (struct tree *)obj;
if (parse_tree(tree)) {
fprintf(stderr, "Error parsing tree %s\n",
tree->entries = NULL;
while (entry) {
struct tree_entry_list *next = entry->next;
- get_delta(sha1, entry->item.any, lock_token);
+ get_delta(sha1, entry->item.any, lock);
free(entry->name);
free(entry);
entry = next;
}
} else if (obj->type == blob_type || obj->type == tag_type) {
- add_request(obj->sha1, lock_token);
+ add_request(obj->sha1, lock);
}
}
-int update_remote(char *remote_path, unsigned char *sha1, char *lock_token)
+static int update_remote(unsigned char *sha1, struct active_lock *lock)
{
struct active_request_slot *slot;
- char *url;
char *out_data;
char *if_header;
struct buffer out_buffer;
struct curl_slist *dav_headers = NULL;
int i;
- url = xmalloc(strlen(remote->url) + strlen(remote_path) + 1);
- sprintf(url, "%s%s", remote->url, remote_path);
-
- if_header = xmalloc(strlen(lock_token) + 25);
- sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock_token);
+ if_header = xmalloc(strlen(lock->token) + 25);
+ sprintf(if_header, "If: (<opaquelocktoken:%s>)", lock->token);
dav_headers = curl_slist_append(dav_headers, if_header);
out_buffer.size = 41;
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
- curl_easy_setopt(slot->curl, CURLOPT_URL, url);
+ curl_easy_setopt(slot->curl, CURLOPT_URL, lock->url);
if (start_active_slot(slot)) {
run_active_slot(slot);
free(out_data);
free(if_header);
- free(url);
if (slot->curl_result != CURLE_OK) {
fprintf(stderr,
"PUT error: curl result=%d, HTTP code=%ld\n",
} else {
free(out_data);
free(if_header);
- free(url);
fprintf(stderr, "Unable to start PUT request\n");
return 0;
}
int main(int argc, char **argv)
{
- struct active_request_slot *slot;
- struct active_request_slot *next_slot;
struct transfer_request *request;
struct transfer_request *next_request;
int nr_refspec = 0;
struct object *local_object = NULL;
char *remote_ref = NULL;
unsigned char remote_sha1[20];
- char *remote_lock = NULL;
+ struct active_lock *remote_lock;
char *remote_path = NULL;
- char *low_speed_limit;
- char *low_speed_time;
int rc = 0;
int i;
+ setup_git_directory();
setup_ident();
remote = xmalloc(sizeof(*remote));
break;
}
- curl_global_init(CURL_GLOBAL_ALL);
+ if (!remote->url)
+ usage(http_push_usage);
-#ifdef USE_CURL_MULTI
- {
- char *http_max_requests = getenv("GIT_HTTP_MAX_REQUESTS");
- if (http_max_requests != NULL)
- max_requests = atoi(http_max_requests);
- }
+ memset(remote_dir_exists, 0, 256);
- curlm = curl_multi_init();
- if (curlm == NULL) {
- fprintf(stderr, "Error creating curl multi handle.\n");
- return 1;
- }
-#endif
-
- if (getenv("GIT_SSL_NO_VERIFY"))
- curl_ssl_verify = 0;
-
- ssl_cert = getenv("GIT_SSL_CERT");
-#if LIBCURL_VERSION_NUM >= 0x070902
- ssl_key = getenv("GIT_SSL_KEY");
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070908
- ssl_capath = getenv("GIT_SSL_CAPATH");
-#endif
- ssl_cainfo = getenv("GIT_SSL_CAINFO");
-
- low_speed_limit = getenv("GIT_HTTP_LOW_SPEED_LIMIT");
- if (low_speed_limit != NULL)
- curl_low_speed_limit = strtol(low_speed_limit, NULL, 10);
- low_speed_time = getenv("GIT_HTTP_LOW_SPEED_TIME");
- if (low_speed_time != NULL)
- curl_low_speed_time = strtol(low_speed_time, NULL, 10);
-
- git_config(http_options);
-
- if (curl_ssl_verify == -1)
- curl_ssl_verify = 1;
-
-#ifdef USE_CURL_MULTI
- if (max_requests < 1)
- max_requests = DEFAULT_MAX_REQUESTS;
-#endif
+ http_init();
no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:");
default_headers = curl_slist_append(default_headers, "Range:");
default_headers = curl_slist_append(default_headers,
"Pragma: no-cache");
-#ifndef NO_CURL_EASY_DUPHANDLE
- curl_default = get_curl_handle();
-#endif
-
/* Verify DAV compliance/lock support */
- if (check_locking() != 0) {
+ if (!locking_available()) {
fprintf(stderr, "Error: no DAV locking support on remote repo %s\n", remote->url);
rc = 1;
goto cleanup;
free(remote_path);
remote_path = xmalloc(strlen(remote_ref) + 12);
sprintf(remote_path, "refs/heads/%s", remote_ref);
- remote_lock = lock_remote(remote_path, 3600);
+ remote_lock = lock_remote(remote_path, LOCK_TIME);
if (remote_lock == NULL) {
fprintf(stderr, "Unable to lock remote branch %s\n",
remote_ref);
fetch_indices();
get_delta(push_all ? NULL : remote_sha1,
local_object, remote_lock);
- process_waiting_requests();
+ finish_all_active_slots();
/* Push missing objects to remote, this would be a
convenient time to pack them first if appropriate. */
pushing = 1;
- process_request_queue();
- process_waiting_requests();
+ fill_active_slots();
+ finish_all_active_slots();
/* Update the remote branch if all went well */
if (do_remote_update) {
- if (!aborted && update_remote(remote_path,
- local_sha1,
+ if (!aborted && update_remote(local_sha1,
remote_lock)) {
fprintf(stderr, "%s remote branch %s\n",
new_branch ? "Created" : "Updated",
}
unlock:
- unlock_remote(remote_path, remote_lock);
+ unlock_remote(remote_lock);
free(remote_path);
- free(remote_lock);
}
cleanup:
curl_slist_free_all(no_pragma_header);
curl_slist_free_all(default_headers);
- slot = active_queue_head;
- while (slot != NULL) {
- next_slot = slot->next;
- if (slot->curl != NULL)
- curl_easy_cleanup(slot->curl);
- free(slot);
- slot = next_slot;
- }
+ http_cleanup();
request = request_queue_head;
while (request != NULL) {
request = next_request;
}
-#ifndef NO_CURL_EASY_DUPHANDLE
- curl_easy_cleanup(curl_default);
-#endif
-#ifdef USE_CURL_MULTI
- curl_multi_cleanup(curlm);
-#endif
- curl_global_cleanup();
return rc;
}