зеркало из https://github.com/microsoft/git.git
2475 строки
64 KiB
C
2475 строки
64 KiB
C
#include "cache.h"
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#include "commit.h"
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#include "pack.h"
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#include "tag.h"
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#include "blob.h"
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#include "http.h"
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#include "refs.h"
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#include "diff.h"
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#include "revision.h"
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#include "exec_cmd.h"
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#include "remote.h"
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#include "list-objects.h"
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#include <expat.h>
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static const char http_push_usage[] =
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"git http-push [--all] [--dry-run] [--force] [--verbose] <remote> [<head>...]\n";
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#ifndef XML_STATUS_OK
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enum XML_Status {
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XML_STATUS_OK = 1,
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XML_STATUS_ERROR = 0
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};
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#define XML_STATUS_OK 1
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#define XML_STATUS_ERROR 0
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#endif
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#define PREV_BUF_SIZE 4096
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#define RANGE_HEADER_SIZE 30
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/* DAV methods */
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#define DAV_LOCK "LOCK"
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#define DAV_MKCOL "MKCOL"
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#define DAV_MOVE "MOVE"
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#define DAV_PROPFIND "PROPFIND"
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#define DAV_PUT "PUT"
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#define DAV_UNLOCK "UNLOCK"
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#define DAV_DELETE "DELETE"
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/* DAV lock flags */
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#define DAV_PROP_LOCKWR (1u << 0)
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#define DAV_PROP_LOCKEX (1u << 1)
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#define DAV_LOCK_OK (1u << 2)
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/* DAV XML properties */
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#define DAV_CTX_LOCKENTRY ".multistatus.response.propstat.prop.supportedlock.lockentry"
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#define DAV_CTX_LOCKTYPE_WRITE ".multistatus.response.propstat.prop.supportedlock.lockentry.locktype.write"
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#define DAV_CTX_LOCKTYPE_EXCLUSIVE ".multistatus.response.propstat.prop.supportedlock.lockentry.lockscope.exclusive"
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#define DAV_ACTIVELOCK_OWNER ".prop.lockdiscovery.activelock.owner.href"
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#define DAV_ACTIVELOCK_TIMEOUT ".prop.lockdiscovery.activelock.timeout"
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#define DAV_ACTIVELOCK_TOKEN ".prop.lockdiscovery.activelock.locktoken.href"
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#define DAV_PROPFIND_RESP ".multistatus.response"
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#define DAV_PROPFIND_NAME ".multistatus.response.href"
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#define DAV_PROPFIND_COLLECTION ".multistatus.response.propstat.prop.resourcetype.collection"
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/* DAV request body templates */
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#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>"
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#define PROPFIND_ALL_REQUEST "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<D:propfind xmlns:D=\"DAV:\">\n<D:allprop/>\n</D:propfind>"
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#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>"
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#define LOCK_TIME 600
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#define LOCK_REFRESH 30
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/* bits #0-15 in revision.h */
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#define LOCAL (1u<<16)
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#define REMOTE (1u<<17)
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#define FETCHING (1u<<18)
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#define PUSHING (1u<<19)
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/* We allow "recursive" symbolic refs. Only within reason, though */
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#define MAXDEPTH 5
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static int pushing;
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static int aborted;
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static signed char remote_dir_exists[256];
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static struct curl_slist *no_pragma_header;
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static int push_verbosely;
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static int push_all = MATCH_REFS_NONE;
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static int force_all;
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static int dry_run;
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static struct object_list *objects;
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struct repo
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{
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char *url;
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char *path;
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int path_len;
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int has_info_refs;
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int can_update_info_refs;
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int has_info_packs;
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struct packed_git *packs;
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struct remote_lock *locks;
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};
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static struct repo *remote;
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enum transfer_state {
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NEED_FETCH,
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RUN_FETCH_LOOSE,
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RUN_FETCH_PACKED,
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NEED_PUSH,
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RUN_MKCOL,
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RUN_PUT,
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RUN_MOVE,
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ABORTED,
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COMPLETE,
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};
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struct transfer_request
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{
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struct object *obj;
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char *url;
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char *dest;
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struct remote_lock *lock;
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struct curl_slist *headers;
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struct buffer buffer;
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char filename[PATH_MAX];
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char tmpfile[PATH_MAX];
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int local_fileno;
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FILE *local_stream;
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enum transfer_state state;
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CURLcode curl_result;
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char errorstr[CURL_ERROR_SIZE];
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long http_code;
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unsigned char real_sha1[20];
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git_SHA_CTX c;
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z_stream stream;
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int zret;
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int rename;
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void *userData;
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struct active_request_slot *slot;
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struct transfer_request *next;
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};
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static struct transfer_request *request_queue_head;
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struct xml_ctx
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{
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char *name;
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int len;
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char *cdata;
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void (*userFunc)(struct xml_ctx *ctx, int tag_closed);
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void *userData;
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};
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struct remote_lock
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{
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char *url;
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char *owner;
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char *token;
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time_t start_time;
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long timeout;
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int refreshing;
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struct remote_lock *next;
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};
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/* Flags that control remote_ls processing */
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#define PROCESS_FILES (1u << 0)
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#define PROCESS_DIRS (1u << 1)
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#define RECURSIVE (1u << 2)
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/* Flags that remote_ls passes to callback functions */
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#define IS_DIR (1u << 0)
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struct remote_ls_ctx
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{
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char *path;
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void (*userFunc)(struct remote_ls_ctx *ls);
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void *userData;
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int flags;
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char *dentry_name;
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int dentry_flags;
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struct remote_ls_ctx *parent;
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};
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static void finish_request(struct transfer_request *request);
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static void release_request(struct transfer_request *request);
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static void process_response(void *callback_data)
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{
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struct transfer_request *request =
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(struct transfer_request *)callback_data;
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finish_request(request);
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}
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#ifdef USE_CURL_MULTI
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static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
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void *data)
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{
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unsigned char expn[4096];
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size_t size = eltsize * nmemb;
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int posn = 0;
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struct transfer_request *request = (struct transfer_request *)data;
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do {
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ssize_t retval = xwrite(request->local_fileno,
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(char *) ptr + posn, size - posn);
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if (retval < 0)
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return posn;
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posn += retval;
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} while (posn < size);
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request->stream.avail_in = size;
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request->stream.next_in = ptr;
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do {
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request->stream.next_out = expn;
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request->stream.avail_out = sizeof(expn);
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request->zret = inflate(&request->stream, Z_SYNC_FLUSH);
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git_SHA1_Update(&request->c, expn,
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sizeof(expn) - request->stream.avail_out);
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} while (request->stream.avail_in && request->zret == Z_OK);
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data_received++;
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return size;
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}
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static void start_fetch_loose(struct transfer_request *request)
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{
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char *hex = sha1_to_hex(request->obj->sha1);
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char *filename;
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char prevfile[PATH_MAX];
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char *url;
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char *posn;
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int prevlocal;
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unsigned char prev_buf[PREV_BUF_SIZE];
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ssize_t prev_read = 0;
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long prev_posn = 0;
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char range[RANGE_HEADER_SIZE];
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struct curl_slist *range_header = NULL;
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struct active_request_slot *slot;
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filename = sha1_file_name(request->obj->sha1);
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snprintf(request->filename, sizeof(request->filename), "%s", filename);
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snprintf(request->tmpfile, sizeof(request->tmpfile),
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"%s.temp", filename);
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snprintf(prevfile, sizeof(prevfile), "%s.prev", request->filename);
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unlink(prevfile);
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rename(request->tmpfile, prevfile);
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unlink(request->tmpfile);
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if (request->local_fileno != -1)
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error("fd leakage in start: %d", request->local_fileno);
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request->local_fileno = open(request->tmpfile,
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O_WRONLY | O_CREAT | O_EXCL, 0666);
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/* This could have failed due to the "lazy directory creation";
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* try to mkdir the last path component.
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*/
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if (request->local_fileno < 0 && errno == ENOENT) {
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char *dir = strrchr(request->tmpfile, '/');
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if (dir) {
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*dir = 0;
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mkdir(request->tmpfile, 0777);
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*dir = '/';
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}
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request->local_fileno = open(request->tmpfile,
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O_WRONLY | O_CREAT | O_EXCL, 0666);
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}
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if (request->local_fileno < 0) {
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request->state = ABORTED;
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error("Couldn't create temporary file %s for %s: %s",
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request->tmpfile, request->filename, strerror(errno));
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return;
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}
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memset(&request->stream, 0, sizeof(request->stream));
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inflateInit(&request->stream);
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git_SHA1_Init(&request->c);
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url = xmalloc(strlen(remote->url) + 50);
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request->url = xmalloc(strlen(remote->url) + 50);
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strcpy(url, remote->url);
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posn = url + strlen(remote->url);
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strcpy(posn, "objects/");
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posn += 8;
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memcpy(posn, hex, 2);
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posn += 2;
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*(posn++) = '/';
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strcpy(posn, hex + 2);
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strcpy(request->url, url);
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/* If a previous temp file is present, process what was already
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fetched. */
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prevlocal = open(prevfile, O_RDONLY);
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if (prevlocal != -1) {
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do {
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prev_read = xread(prevlocal, prev_buf, PREV_BUF_SIZE);
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if (prev_read>0) {
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if (fwrite_sha1_file(prev_buf,
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1,
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prev_read,
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request) == prev_read) {
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prev_posn += prev_read;
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} else {
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prev_read = -1;
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}
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}
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} while (prev_read > 0);
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close(prevlocal);
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}
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unlink(prevfile);
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/* Reset inflate/SHA1 if there was an error reading the previous temp
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file; also rewind to the beginning of the local file. */
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if (prev_read == -1) {
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memset(&request->stream, 0, sizeof(request->stream));
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inflateInit(&request->stream);
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git_SHA1_Init(&request->c);
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if (prev_posn>0) {
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prev_posn = 0;
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lseek(request->local_fileno, 0, SEEK_SET);
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ftruncate(request->local_fileno, 0);
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}
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}
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slot = get_active_slot();
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slot->callback_func = process_response;
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slot->callback_data = request;
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request->slot = slot;
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curl_easy_setopt(slot->curl, CURLOPT_FILE, request);
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curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file);
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curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr);
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curl_easy_setopt(slot->curl, CURLOPT_URL, url);
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curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
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/* If we have successfully processed data from a previous fetch
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attempt, only fetch the data we don't already have. */
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if (prev_posn>0) {
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if (push_verbosely)
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fprintf(stderr,
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"Resuming fetch of object %s at byte %ld\n",
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hex, prev_posn);
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sprintf(range, "Range: bytes=%ld-", prev_posn);
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range_header = curl_slist_append(range_header, range);
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curl_easy_setopt(slot->curl,
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CURLOPT_HTTPHEADER, range_header);
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}
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/* Try to get the request started, abort the request on error */
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request->state = RUN_FETCH_LOOSE;
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if (!start_active_slot(slot)) {
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fprintf(stderr, "Unable to start GET request\n");
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remote->can_update_info_refs = 0;
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release_request(request);
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}
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}
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static void start_mkcol(struct transfer_request *request)
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{
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char *hex = sha1_to_hex(request->obj->sha1);
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struct active_request_slot *slot;
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char *posn;
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request->url = xmalloc(strlen(remote->url) + 13);
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strcpy(request->url, remote->url);
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posn = request->url + strlen(remote->url);
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strcpy(posn, "objects/");
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posn += 8;
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memcpy(posn, hex, 2);
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posn += 2;
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strcpy(posn, "/");
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slot = get_active_slot();
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slot->callback_func = process_response;
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slot->callback_data = request;
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curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1); /* undo PUT setup */
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curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
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curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr);
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curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_MKCOL);
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curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
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if (start_active_slot(slot)) {
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request->slot = slot;
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request->state = RUN_MKCOL;
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} else {
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request->state = ABORTED;
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free(request->url);
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request->url = NULL;
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}
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}
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#endif
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static void start_fetch_packed(struct transfer_request *request)
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{
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char *url;
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struct packed_git *target;
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FILE *packfile;
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char *filename;
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long prev_posn = 0;
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char range[RANGE_HEADER_SIZE];
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struct curl_slist *range_header = NULL;
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struct transfer_request *check_request = request_queue_head;
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struct active_request_slot *slot;
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target = find_sha1_pack(request->obj->sha1, remote->packs);
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if (!target) {
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fprintf(stderr, "Unable to fetch %s, will not be able to update server info refs\n", sha1_to_hex(request->obj->sha1));
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remote->can_update_info_refs = 0;
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release_request(request);
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return;
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}
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fprintf(stderr, "Fetching pack %s\n", sha1_to_hex(target->sha1));
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fprintf(stderr, " which contains %s\n", sha1_to_hex(request->obj->sha1));
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filename = sha1_pack_name(target->sha1);
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snprintf(request->filename, sizeof(request->filename), "%s", filename);
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snprintf(request->tmpfile, sizeof(request->tmpfile),
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"%s.temp", filename);
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url = xmalloc(strlen(remote->url) + 64);
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sprintf(url, "%sobjects/pack/pack-%s.pack",
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remote->url, sha1_to_hex(target->sha1));
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/* Make sure there isn't another open request for this pack */
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while (check_request) {
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if (check_request->state == RUN_FETCH_PACKED &&
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!strcmp(check_request->url, url)) {
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free(url);
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release_request(request);
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return;
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}
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check_request = check_request->next;
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}
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packfile = fopen(request->tmpfile, "a");
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if (!packfile) {
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fprintf(stderr, "Unable to open local file %s for pack",
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request->tmpfile);
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remote->can_update_info_refs = 0;
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free(url);
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return;
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}
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slot = get_active_slot();
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slot->callback_func = process_response;
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slot->callback_data = request;
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request->slot = slot;
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request->local_stream = packfile;
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request->userData = target;
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request->url = url;
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curl_easy_setopt(slot->curl, CURLOPT_FILE, packfile);
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curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
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curl_easy_setopt(slot->curl, CURLOPT_URL, url);
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curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
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slot->local = packfile;
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/* If there is data present from a previous transfer attempt,
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resume where it left off */
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prev_posn = ftell(packfile);
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if (prev_posn>0) {
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if (push_verbosely)
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fprintf(stderr,
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"Resuming fetch of pack %s at byte %ld\n",
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sha1_to_hex(target->sha1), prev_posn);
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sprintf(range, "Range: bytes=%ld-", prev_posn);
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range_header = curl_slist_append(range_header, range);
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curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, range_header);
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}
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/* Try to get the request started, abort the request on error */
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request->state = RUN_FETCH_PACKED;
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if (!start_active_slot(slot)) {
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fprintf(stderr, "Unable to start GET request\n");
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remote->can_update_info_refs = 0;
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release_request(request);
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}
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}
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static void start_put(struct transfer_request *request)
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{
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char *hex = sha1_to_hex(request->obj->sha1);
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struct active_request_slot *slot;
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char *posn;
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enum object_type type;
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char hdr[50];
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void *unpacked;
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unsigned long len;
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int hdrlen;
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ssize_t size;
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z_stream stream;
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unpacked = read_sha1_file(request->obj->sha1, &type, &len);
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hdrlen = sprintf(hdr, "%s %lu", typename(type), len) + 1;
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/* Set it up */
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memset(&stream, 0, sizeof(stream));
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deflateInit(&stream, zlib_compression_level);
|
|
size = deflateBound(&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 (deflate(&stream, 0) == Z_OK)
|
|
/* nothing */;
|
|
|
|
/* Then the data itself.. */
|
|
stream.next_in = unpacked;
|
|
stream.avail_in = len;
|
|
while (deflate(&stream, Z_FINISH) == Z_OK)
|
|
/* nothing */;
|
|
deflateEnd(&stream);
|
|
free(unpacked);
|
|
|
|
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);
|
|
|
|
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.buf.len);
|
|
curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
|
|
curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
|
|
curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
|
|
curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
|
|
curl_easy_setopt(slot->curl, CURLOPT_PUT, 1);
|
|
curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
|
|
curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
|
|
|
|
if (start_active_slot(slot)) {
|
|
request->slot = slot;
|
|
request->state = RUN_PUT;
|
|
} else {
|
|
request->state = ABORTED;
|
|
free(request->url);
|
|
request->url = NULL;
|
|
}
|
|
}
|
|
|
|
static void start_move(struct transfer_request *request)
|
|
{
|
|
struct active_request_slot *slot;
|
|
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);
|
|
dav_headers = curl_slist_append(dav_headers, "Overwrite: T");
|
|
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
|
|
curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
|
|
curl_easy_setopt(slot->curl, CURLOPT_URL, request->url);
|
|
|
|
if (start_active_slot(slot)) {
|
|
request->slot = slot;
|
|
request->state = RUN_MOVE;
|
|
} else {
|
|
request->state = ABORTED;
|
|
free(request->url);
|
|
request->url = NULL;
|
|
}
|
|
}
|
|
|
|
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;
|
|
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);
|
|
|
|
slot = get_active_slot();
|
|
slot->results = &results;
|
|
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 (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);
|
|
free(if_header);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void check_locks(void)
|
|
{
|
|
struct remote_lock *lock = remote->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->next != NULL && entry->next != request)
|
|
entry = entry->next;
|
|
if (entry->next == request)
|
|
entry->next = entry->next->next;
|
|
}
|
|
|
|
if (request->local_fileno != -1)
|
|
close(request->local_fileno);
|
|
if (request->local_stream)
|
|
fclose(request->local_stream);
|
|
free(request->url);
|
|
free(request);
|
|
}
|
|
|
|
static void finish_request(struct transfer_request *request)
|
|
{
|
|
struct stat st;
|
|
struct packed_git *target;
|
|
struct packed_git **lst;
|
|
|
|
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 != 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_MKCOL) {
|
|
if (request->curl_result == CURLE_OK ||
|
|
request->http_code == 405) {
|
|
remote_dir_exists[request->obj->sha1[0]] = 1;
|
|
start_put(request);
|
|
} else {
|
|
fprintf(stderr, "MKCOL %s failed, aborting (%d/%ld)\n",
|
|
sha1_to_hex(request->obj->sha1),
|
|
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",
|
|
sha1_to_hex(request->obj->sha1),
|
|
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",
|
|
sha1_to_hex(request->obj->sha1));
|
|
request->obj->flags |= REMOTE;
|
|
release_request(request);
|
|
} else {
|
|
fprintf(stderr, "MOVE %s failed, aborting (%d/%ld)\n",
|
|
sha1_to_hex(request->obj->sha1),
|
|
request->curl_result, request->http_code);
|
|
request->state = ABORTED;
|
|
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 &&
|
|
request->http_code != 416) {
|
|
if (stat(request->tmpfile, &st) == 0) {
|
|
if (st.st_size == 0)
|
|
unlink(request->tmpfile);
|
|
}
|
|
} else {
|
|
if (request->http_code == 416)
|
|
fprintf(stderr, "Warning: requested range invalid; we may already have all the data.\n");
|
|
|
|
inflateEnd(&request->stream);
|
|
git_SHA1_Final(request->real_sha1, &request->c);
|
|
if (request->zret != Z_STREAM_END) {
|
|
unlink(request->tmpfile);
|
|
} else if (hashcmp(request->obj->sha1, request->real_sha1)) {
|
|
unlink(request->tmpfile);
|
|
} else {
|
|
request->rename =
|
|
move_temp_to_file(
|
|
request->tmpfile,
|
|
request->filename);
|
|
if (request->rename == 0) {
|
|
request->obj->flags |= (LOCAL | REMOTE);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Try fetching packed if necessary */
|
|
if (request->obj->flags & LOCAL)
|
|
release_request(request);
|
|
else
|
|
start_fetch_packed(request);
|
|
|
|
} else if (request->state == RUN_FETCH_PACKED) {
|
|
if (request->curl_result != CURLE_OK) {
|
|
fprintf(stderr, "Unable to get pack file %s\n%s",
|
|
request->url, curl_errorstr);
|
|
remote->can_update_info_refs = 0;
|
|
} else {
|
|
off_t pack_size = ftell(request->local_stream);
|
|
|
|
fclose(request->local_stream);
|
|
request->local_stream = NULL;
|
|
if (!move_temp_to_file(request->tmpfile,
|
|
request->filename)) {
|
|
target = (struct packed_git *)request->userData;
|
|
target->pack_size = pack_size;
|
|
lst = &remote->packs;
|
|
while (*lst != target)
|
|
lst = &((*lst)->next);
|
|
*lst = (*lst)->next;
|
|
|
|
if (!verify_pack(target))
|
|
install_packed_git(target);
|
|
else
|
|
remote->can_update_info_refs = 0;
|
|
}
|
|
}
|
|
release_request(request);
|
|
}
|
|
}
|
|
|
|
#ifdef USE_CURL_MULTI
|
|
static int fill_active_slot(void *unused)
|
|
{
|
|
struct transfer_request *request = request_queue_head;
|
|
|
|
if (aborted)
|
|
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->sha1[0]] == 1) {
|
|
start_put(request);
|
|
} else {
|
|
start_mkcol(request);
|
|
}
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
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->sha1[0]] == -1)
|
|
get_remote_object_list(obj->sha1[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->local_fileno = -1;
|
|
request->local_stream = NULL;
|
|
request->state = NEED_FETCH;
|
|
request->next = request_queue_head;
|
|
request_queue_head = request;
|
|
|
|
#ifdef USE_CURL_MULTI
|
|
fill_active_slots();
|
|
step_active_slots();
|
|
#endif
|
|
}
|
|
|
|
static int add_send_request(struct object *obj, struct remote_lock *lock)
|
|
{
|
|
struct transfer_request *request = request_queue_head;
|
|
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->sha1[0]] == -1)
|
|
get_remote_object_list(obj->sha1[0]);
|
|
if (obj->flags & (REMOTE | PUSHING))
|
|
return 0;
|
|
target = find_sha1_pack(obj->sha1, remote->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->local_fileno = -1;
|
|
request->local_stream = NULL;
|
|
request->state = NEED_PUSH;
|
|
request->next = request_queue_head;
|
|
request_queue_head = request;
|
|
|
|
#ifdef USE_CURL_MULTI
|
|
fill_active_slots();
|
|
step_active_slots();
|
|
#endif
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int fetch_index(unsigned char *sha1)
|
|
{
|
|
char *hex = sha1_to_hex(sha1);
|
|
char *filename;
|
|
char *url;
|
|
char tmpfile[PATH_MAX];
|
|
long prev_posn = 0;
|
|
char range[RANGE_HEADER_SIZE];
|
|
struct curl_slist *range_header = NULL;
|
|
|
|
FILE *indexfile;
|
|
struct active_request_slot *slot;
|
|
struct slot_results results;
|
|
|
|
/* Don't use the index if the pack isn't there */
|
|
url = xmalloc(strlen(remote->url) + 64);
|
|
sprintf(url, "%sobjects/pack/pack-%s.pack", remote->url, hex);
|
|
slot = get_active_slot();
|
|
slot->results = &results;
|
|
curl_easy_setopt(slot->curl, CURLOPT_URL, url);
|
|
curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
|
|
if (start_active_slot(slot)) {
|
|
run_active_slot(slot);
|
|
if (results.curl_result != CURLE_OK) {
|
|
free(url);
|
|
return error("Unable to verify pack %s is available",
|
|
hex);
|
|
}
|
|
} else {
|
|
free(url);
|
|
return error("Unable to start request");
|
|
}
|
|
|
|
if (has_pack_index(sha1)) {
|
|
free(url);
|
|
return 0;
|
|
}
|
|
|
|
if (push_verbosely)
|
|
fprintf(stderr, "Getting index for pack %s\n", hex);
|
|
|
|
sprintf(url, "%sobjects/pack/pack-%s.idx", remote->url, hex);
|
|
|
|
filename = sha1_pack_index_name(sha1);
|
|
snprintf(tmpfile, sizeof(tmpfile), "%s.temp", filename);
|
|
indexfile = fopen(tmpfile, "a");
|
|
if (!indexfile) {
|
|
free(url);
|
|
return error("Unable to open local file %s for pack index",
|
|
tmpfile);
|
|
}
|
|
|
|
slot = get_active_slot();
|
|
slot->results = &results;
|
|
curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
|
|
curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
|
|
curl_easy_setopt(slot->curl, CURLOPT_FILE, indexfile);
|
|
curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
|
|
curl_easy_setopt(slot->curl, CURLOPT_URL, url);
|
|
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header);
|
|
slot->local = indexfile;
|
|
|
|
/* If there is data present from a previous transfer attempt,
|
|
resume where it left off */
|
|
prev_posn = ftell(indexfile);
|
|
if (prev_posn>0) {
|
|
if (push_verbosely)
|
|
fprintf(stderr,
|
|
"Resuming fetch of index for pack %s at byte %ld\n",
|
|
hex, prev_posn);
|
|
sprintf(range, "Range: bytes=%ld-", prev_posn);
|
|
range_header = curl_slist_append(range_header, range);
|
|
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, range_header);
|
|
}
|
|
|
|
if (start_active_slot(slot)) {
|
|
run_active_slot(slot);
|
|
if (results.curl_result != CURLE_OK) {
|
|
free(url);
|
|
fclose(indexfile);
|
|
return error("Unable to get pack index %s\n%s", url,
|
|
curl_errorstr);
|
|
}
|
|
} else {
|
|
free(url);
|
|
fclose(indexfile);
|
|
return error("Unable to start request");
|
|
}
|
|
|
|
free(url);
|
|
fclose(indexfile);
|
|
|
|
return move_temp_to_file(tmpfile, filename);
|
|
}
|
|
|
|
static int setup_index(unsigned char *sha1)
|
|
{
|
|
struct packed_git *new_pack;
|
|
|
|
if (fetch_index(sha1))
|
|
return -1;
|
|
|
|
new_pack = parse_pack_index(sha1);
|
|
new_pack->next = remote->packs;
|
|
remote->packs = new_pack;
|
|
return 0;
|
|
}
|
|
|
|
static int fetch_indices(void)
|
|
{
|
|
unsigned char sha1[20];
|
|
char *url;
|
|
struct strbuf buffer = STRBUF_INIT;
|
|
char *data;
|
|
int i = 0;
|
|
|
|
struct active_request_slot *slot;
|
|
struct slot_results results;
|
|
|
|
if (push_verbosely)
|
|
fprintf(stderr, "Getting pack list\n");
|
|
|
|
url = xmalloc(strlen(remote->url) + 20);
|
|
sprintf(url, "%sobjects/info/packs", remote->url);
|
|
|
|
slot = get_active_slot();
|
|
slot->results = &results;
|
|
curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
|
|
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)) {
|
|
run_active_slot(slot);
|
|
if (results.curl_result != CURLE_OK) {
|
|
strbuf_release(&buffer);
|
|
free(url);
|
|
if (results.http_code == 404)
|
|
return 0;
|
|
else
|
|
return error("%s", curl_errorstr);
|
|
}
|
|
} else {
|
|
strbuf_release(&buffer);
|
|
free(url);
|
|
return error("Unable to start request");
|
|
}
|
|
free(url);
|
|
|
|
data = buffer.buf;
|
|
while (i < buffer.len) {
|
|
switch (data[i]) {
|
|
case 'P':
|
|
i++;
|
|
if (i + 52 < buffer.len &&
|
|
!prefixcmp(data + i, " pack-") &&
|
|
!prefixcmp(data + i + 46, ".pack\n")) {
|
|
get_sha1_hex(data + i + 6, sha1);
|
|
setup_index(sha1);
|
|
i += 51;
|
|
break;
|
|
}
|
|
default:
|
|
while (data[i] != '\n')
|
|
i++;
|
|
}
|
|
i++;
|
|
}
|
|
|
|
strbuf_release(&buffer);
|
|
return 0;
|
|
}
|
|
|
|
static void one_remote_object(const char *hex)
|
|
{
|
|
unsigned char sha1[20];
|
|
struct object *obj;
|
|
|
|
if (get_sha1_hex(hex, sha1) != 0)
|
|
return;
|
|
|
|
obj = lookup_object(sha1);
|
|
if (!obj)
|
|
obj = parse_object(sha1);
|
|
|
|
/* 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;
|
|
|
|
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 (!prefixcmp(ctx->cdata, "Second-"))
|
|
lock->timeout =
|
|
strtol(ctx->cdata + 7, NULL, 10);
|
|
} else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TOKEN)) {
|
|
lock->token = xmalloc(strlen(ctx->cdata) + 1);
|
|
strcpy(lock->token, ctx->cdata);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void one_remote_ref(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 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);
|
|
|
|
free(ctx->cdata);
|
|
ctx->cdata = NULL;
|
|
|
|
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 == 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;
|
|
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 = NULL;
|
|
struct xml_ctx ctx;
|
|
|
|
url = xmalloc(strlen(remote->url) + strlen(path) + 1);
|
|
sprintf(url, "%s%s", remote->url, path);
|
|
|
|
/* Make sure leading directories exist for the remote ref */
|
|
ep = strchr(url + strlen(remote->url) + 1, '/');
|
|
while (ep) {
|
|
char saved_character = ep[1];
|
|
ep[1] = '\0';
|
|
slot = get_active_slot();
|
|
slot->results = &results;
|
|
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 (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, '/');
|
|
}
|
|
|
|
strbuf_addf(&out_buffer.buf, LOCK_REQUEST, git_default_email);
|
|
|
|
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");
|
|
|
|
slot = get_active_slot();
|
|
slot->results = &results;
|
|
curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
|
|
curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
|
|
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);
|
|
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);
|
|
|
|
lock = xcalloc(1, sizeof(*lock));
|
|
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, "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(lock);
|
|
lock = NULL;
|
|
} else {
|
|
lock->url = url;
|
|
lock->start_time = time(NULL);
|
|
lock->next = remote->locks;
|
|
remote->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 = remote->locks;
|
|
char *lock_token_header;
|
|
struct curl_slist *dav_headers = NULL;
|
|
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);
|
|
|
|
slot = get_active_slot();
|
|
slot->results = &results;
|
|
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_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);
|
|
free(lock_token_header);
|
|
|
|
if (remote->locks == lock) {
|
|
remote->locks = lock->next;
|
|
} else {
|
|
while (prev && prev->next != lock)
|
|
prev = prev->next;
|
|
if (prev)
|
|
prev->next = prev->next->next;
|
|
}
|
|
|
|
free(lock->owner);
|
|
free(lock->url);
|
|
free(lock->token);
|
|
free(lock);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void remove_locks(void)
|
|
{
|
|
struct remote_lock *lock = remote->locks;
|
|
|
|
fprintf(stderr, "Removing remote locks...\n");
|
|
while (lock) {
|
|
unlock_remote(lock);
|
|
lock = lock->next;
|
|
}
|
|
}
|
|
|
|
static void remove_locks_on_signal(int signo)
|
|
{
|
|
remove_locks();
|
|
signal(signo, SIG_DFL);
|
|
raise(signo);
|
|
}
|
|
|
|
static void remote_ls(const char *path, int flags,
|
|
void (*userFunc)(struct remote_ls_ctx *ls),
|
|
void *userData);
|
|
|
|
static void process_ls_object(struct remote_ls_ctx *ls)
|
|
{
|
|
unsigned int *parent = (unsigned int *)ls->userData;
|
|
char *path = ls->dentry_name;
|
|
char *obj_hex;
|
|
|
|
if (!strcmp(ls->path, ls->dentry_name) && (ls->flags & IS_DIR)) {
|
|
remote_dir_exists[*parent] = 1;
|
|
return;
|
|
}
|
|
|
|
if (strlen(path) != 49)
|
|
return;
|
|
path += 8;
|
|
obj_hex = xmalloc(strlen(path));
|
|
/* NB: path is not null-terminated, can not use strlcpy here */
|
|
memcpy(obj_hex, path, 2);
|
|
strcpy(obj_hex + 2, path + 3);
|
|
one_remote_object(obj_hex);
|
|
free(obj_hex);
|
|
}
|
|
|
|
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) {
|
|
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) {
|
|
path += remote->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(ls->dentry_name);
|
|
ls->dentry_name = NULL;
|
|
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 = xmalloc(strlen(remote->url) + strlen(path) + 1);
|
|
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 = NULL;
|
|
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;
|
|
|
|
sprintf(url, "%s%s", remote->url, path);
|
|
|
|
strbuf_addf(&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_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
|
|
curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
|
|
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);
|
|
curl_easy_setopt(slot->curl, CURLOPT_URL, url);
|
|
curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 1);
|
|
curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PROPFIND);
|
|
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
|
|
|
|
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 = NULL;
|
|
struct xml_ctx ctx;
|
|
int lock_flags = 0;
|
|
|
|
strbuf_addf(&out_buffer.buf, PROPFIND_SUPPORTEDLOCK_REQUEST, remote->url);
|
|
|
|
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_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
|
|
curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
|
|
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);
|
|
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);
|
|
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, dav_headers);
|
|
|
|
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("Error: no DAV locking support on %s",
|
|
remote->url);
|
|
|
|
} else {
|
|
error("Cannot access URL %s, return code %d",
|
|
remote->url, results.curl_result);
|
|
lock_flags = 0;
|
|
}
|
|
} else {
|
|
error("Unable to start PROPFIND request on %s", remote->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 name_path *path,
|
|
const char *name)
|
|
{
|
|
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 name_path *path,
|
|
const char *name)
|
|
{
|
|
struct object *obj = &tree->object;
|
|
struct tree_desc desc;
|
|
struct name_entry entry;
|
|
struct name_path me;
|
|
|
|
obj->flags |= LOCAL;
|
|
|
|
if (obj->flags & (UNINTERESTING | SEEN))
|
|
return p;
|
|
if (parse_tree(tree) < 0)
|
|
die("bad tree object %s", sha1_to_hex(obj->sha1));
|
|
|
|
obj->flags |= SEEN;
|
|
name = xstrdup(name);
|
|
p = add_one_object(obj, p);
|
|
me.up = path;
|
|
me.elem = name;
|
|
me.elem_len = strlen(name);
|
|
|
|
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(entry.sha1), p, &me, name);
|
|
break;
|
|
case OBJ_BLOB:
|
|
p = process_blob(lookup_blob(entry.sha1), p, &me, name);
|
|
break;
|
|
default:
|
|
/* Subproject commit - not in this repository */
|
|
break;
|
|
}
|
|
|
|
free(tree->buffer);
|
|
tree->buffer = NULL;
|
|
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(commit->tree, p, NULL, "");
|
|
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, NULL, name);
|
|
continue;
|
|
}
|
|
if (obj->type == OBJ_BLOB) {
|
|
p = process_blob((struct blob *)obj, p, NULL, name);
|
|
continue;
|
|
}
|
|
die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
|
|
}
|
|
|
|
while (objects) {
|
|
if (!(objects->item->flags & UNINTERESTING))
|
|
count += add_send_request(objects->item, lock);
|
|
objects = objects->next;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
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;
|
|
|
|
if_header = xmalloc(strlen(lock->token) + 25);
|
|
sprintf(if_header, "If: (<%s>)", lock->token);
|
|
dav_headers = curl_slist_append(dav_headers, if_header);
|
|
|
|
strbuf_addf(&out_buffer.buf, "%s\n", sha1_to_hex(sha1));
|
|
|
|
slot = get_active_slot();
|
|
slot->results = &results;
|
|
curl_easy_setopt(slot->curl, CURLOPT_INFILE, &out_buffer);
|
|
curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, out_buffer.buf.len);
|
|
curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
|
|
curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
|
|
curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
|
|
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, lock->url);
|
|
|
|
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",
|
|
results.curl_result, results.http_code);
|
|
/* We should attempt recovery? */
|
|
return 0;
|
|
}
|
|
} else {
|
|
strbuf_release(&out_buffer.buf);
|
|
free(if_header);
|
|
fprintf(stderr, "Unable to start PUT request\n");
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static struct ref *local_refs, **local_tail;
|
|
static struct ref *remote_refs, **remote_tail;
|
|
|
|
static int one_local_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
|
|
{
|
|
struct ref *ref;
|
|
int len = strlen(refname) + 1;
|
|
ref = xcalloc(1, sizeof(*ref) + len);
|
|
hashcpy(ref->new_sha1, sha1);
|
|
memcpy(ref->name, refname, len);
|
|
*local_tail = ref;
|
|
local_tail = &ref->next;
|
|
return 0;
|
|
}
|
|
|
|
static void one_remote_ref(char *refname)
|
|
{
|
|
struct ref *ref;
|
|
struct object *obj;
|
|
|
|
ref = alloc_ref(refname);
|
|
|
|
if (http_fetch_ref(remote->url, ref) != 0) {
|
|
fprintf(stderr,
|
|
"Unable to fetch ref %s from %s\n",
|
|
refname, remote->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 (remote->can_update_info_refs && !has_sha1_file(ref->old_sha1)) {
|
|
obj = lookup_unknown_object(ref->old_sha1);
|
|
if (obj) {
|
|
fprintf(stderr, " fetch %s for %s\n",
|
|
sha1_to_hex(ref->old_sha1), refname);
|
|
add_fetch_request(obj);
|
|
}
|
|
}
|
|
|
|
*remote_tail = ref;
|
|
remote_tail = &ref->next;
|
|
}
|
|
|
|
static void get_local_heads(void)
|
|
{
|
|
local_tail = &local_refs;
|
|
for_each_ref(one_local_ref, NULL);
|
|
}
|
|
|
|
static void get_dav_remote_heads(void)
|
|
{
|
|
remote_tail = &remote_refs;
|
|
remote_ls("refs/", (PROCESS_FILES | PROCESS_DIRS | RECURSIVE), process_ls_ref, NULL);
|
|
}
|
|
|
|
static int is_zero_sha1(const unsigned char *sha1)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 20; i++) {
|
|
if (*sha1++)
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static void unmark_and_free(struct commit_list *list, unsigned int mark)
|
|
{
|
|
while (list) {
|
|
struct commit_list *temp = list;
|
|
temp->item->object.flags &= ~mark;
|
|
list = temp->next;
|
|
free(temp);
|
|
}
|
|
}
|
|
|
|
static int ref_newer(const unsigned char *new_sha1,
|
|
const unsigned char *old_sha1)
|
|
{
|
|
struct object *o;
|
|
struct commit *old, *new;
|
|
struct commit_list *list, *used;
|
|
int found = 0;
|
|
|
|
/* Both new and old must be commit-ish and new is descendant of
|
|
* old. Otherwise we require --force.
|
|
*/
|
|
o = deref_tag(parse_object(old_sha1), NULL, 0);
|
|
if (!o || o->type != OBJ_COMMIT)
|
|
return 0;
|
|
old = (struct commit *) o;
|
|
|
|
o = deref_tag(parse_object(new_sha1), NULL, 0);
|
|
if (!o || o->type != OBJ_COMMIT)
|
|
return 0;
|
|
new = (struct commit *) o;
|
|
|
|
if (parse_commit(new) < 0)
|
|
return 0;
|
|
|
|
used = list = NULL;
|
|
commit_list_insert(new, &list);
|
|
while (list) {
|
|
new = pop_most_recent_commit(&list, TMP_MARK);
|
|
commit_list_insert(new, &used);
|
|
if (new == old) {
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
unmark_and_free(list, TMP_MARK);
|
|
unmark_and_free(used, TMP_MARK);
|
|
return found;
|
|
}
|
|
|
|
static void add_remote_info_ref(struct remote_ls_ctx *ls)
|
|
{
|
|
struct strbuf *buf = (struct strbuf *)ls->userData;
|
|
struct object *o;
|
|
int len;
|
|
char *ref_info;
|
|
struct ref *ref;
|
|
|
|
ref = alloc_ref(ls->dentry_name);
|
|
|
|
if (http_fetch_ref(remote->url, ref) != 0) {
|
|
fprintf(stderr,
|
|
"Unable to fetch ref %s from %s\n",
|
|
ls->dentry_name, remote->url);
|
|
aborted = 1;
|
|
free(ref);
|
|
return;
|
|
}
|
|
|
|
o = parse_object(ref->old_sha1);
|
|
if (!o) {
|
|
fprintf(stderr,
|
|
"Unable to parse object %s for remote ref %s\n",
|
|
sha1_to_hex(ref->old_sha1), ls->dentry_name);
|
|
aborted = 1;
|
|
free(ref);
|
|
return;
|
|
}
|
|
|
|
len = strlen(ls->dentry_name) + 42;
|
|
ref_info = xcalloc(len + 1, 1);
|
|
sprintf(ref_info, "%s %s\n",
|
|
sha1_to_hex(ref->old_sha1), ls->dentry_name);
|
|
fwrite_buffer(ref_info, 1, len, buf);
|
|
free(ref_info);
|
|
|
|
if (o->type == OBJ_TAG) {
|
|
o = deref_tag(o, ls->dentry_name, 0);
|
|
if (o) {
|
|
len = strlen(ls->dentry_name) + 45;
|
|
ref_info = xcalloc(len + 1, 1);
|
|
sprintf(ref_info, "%s %s^{}\n",
|
|
sha1_to_hex(o->sha1), ls->dentry_name);
|
|
fwrite_buffer(ref_info, 1, len, buf);
|
|
free(ref_info);
|
|
}
|
|
}
|
|
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;
|
|
char *if_header;
|
|
struct curl_slist *dav_headers = NULL;
|
|
|
|
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);
|
|
|
|
slot = get_active_slot();
|
|
slot->results = &results;
|
|
curl_easy_setopt(slot->curl, CURLOPT_INFILE, &buffer);
|
|
curl_easy_setopt(slot->curl, CURLOPT_INFILESIZE, buffer.buf.len);
|
|
curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, fread_buffer);
|
|
curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
|
|
curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, DAV_PUT);
|
|
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, lock->url);
|
|
|
|
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);
|
|
}
|
|
}
|
|
free(if_header);
|
|
}
|
|
strbuf_release(&buffer.buf);
|
|
}
|
|
|
|
static int remote_exists(const char *path)
|
|
{
|
|
char *url = xmalloc(strlen(remote->url) + strlen(path) + 1);
|
|
struct active_request_slot *slot;
|
|
struct slot_results results;
|
|
int ret = -1;
|
|
|
|
sprintf(url, "%s%s", remote->url, path);
|
|
|
|
slot = get_active_slot();
|
|
slot->results = &results;
|
|
curl_easy_setopt(slot->curl, CURLOPT_URL, url);
|
|
curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 1);
|
|
|
|
if (start_active_slot(slot)) {
|
|
run_active_slot(slot);
|
|
if (results.http_code == 404)
|
|
ret = 0;
|
|
else if (results.curl_result == CURLE_OK)
|
|
ret = 1;
|
|
else
|
|
fprintf(stderr, "HEAD HTTP error %ld\n", results.http_code);
|
|
} else {
|
|
fprintf(stderr, "Unable to start HEAD request\n");
|
|
}
|
|
|
|
free(url);
|
|
return ret;
|
|
}
|
|
|
|
static void fetch_symref(const char *path, char **symref, unsigned char *sha1)
|
|
{
|
|
char *url;
|
|
struct strbuf buffer = STRBUF_INIT;
|
|
struct active_request_slot *slot;
|
|
struct slot_results results;
|
|
|
|
url = xmalloc(strlen(remote->url) + strlen(path) + 1);
|
|
sprintf(url, "%s%s", remote->url, path);
|
|
|
|
slot = get_active_slot();
|
|
slot->results = &results;
|
|
curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
|
|
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)) {
|
|
run_active_slot(slot);
|
|
if (results.curl_result != CURLE_OK) {
|
|
die("Couldn't get %s for remote symref\n%s",
|
|
url, curl_errorstr);
|
|
}
|
|
} else {
|
|
die("Unable to start remote symref request");
|
|
}
|
|
free(url);
|
|
|
|
free(*symref);
|
|
*symref = NULL;
|
|
hashclr(sha1);
|
|
|
|
if (buffer.len == 0)
|
|
return;
|
|
|
|
/* If it's a symref, set the refname; otherwise try for a sha1 */
|
|
if (!prefixcmp((char *)buffer.buf, "ref: ")) {
|
|
*symref = xmemdupz((char *)buffer.buf + 5, buffer.len - 6);
|
|
} else {
|
|
get_sha1_hex(buffer.buf, sha1);
|
|
}
|
|
|
|
strbuf_release(&buffer);
|
|
}
|
|
|
|
static int verify_merge_base(unsigned char *head_sha1, unsigned char *branch_sha1)
|
|
{
|
|
struct commit *head = lookup_commit(head_sha1);
|
|
struct commit *branch = lookup_commit(branch_sha1);
|
|
struct commit_list *merge_bases = get_merge_bases(head, branch, 1);
|
|
|
|
return (merge_bases && !merge_bases->next && merge_bases->item == branch);
|
|
}
|
|
|
|
static int delete_remote_branch(char *pattern, int force)
|
|
{
|
|
struct ref *refs = remote_refs;
|
|
struct ref *remote_ref = NULL;
|
|
unsigned char head_sha1[20];
|
|
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_sha1);
|
|
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_sha1);
|
|
}
|
|
|
|
/* 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_zero_sha1(head_sha1))
|
|
return error("Unable to resolve remote HEAD");
|
|
if (!has_sha1_file(head_sha1))
|
|
return error("Remote HEAD resolves to object %s\nwhich does not exist locally, perhaps you need to fetch?", sha1_to_hex(head_sha1));
|
|
|
|
/* Remote branch must resolve to a known object */
|
|
if (is_zero_sha1(remote_ref->old_sha1))
|
|
return error("Unable to resolve remote branch %s",
|
|
remote_ref->name);
|
|
if (!has_sha1_file(remote_ref->old_sha1))
|
|
return error("Remote branch %s resolves to object %s\nwhich does not exist locally, perhaps you need to fetch?", remote_ref->name, sha1_to_hex(remote_ref->old_sha1));
|
|
|
|
/* Remote branch must be an ancestor of remote HEAD */
|
|
if (!verify_merge_base(head_sha1, remote_ref->old_sha1)) {
|
|
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, remote->url, pattern);
|
|
}
|
|
}
|
|
|
|
/* Send delete request */
|
|
fprintf(stderr, "Removing remote branch '%s'\n", remote_ref->name);
|
|
if (dry_run)
|
|
return 0;
|
|
url = xmalloc(strlen(remote->url) + strlen(remote_ref->name) + 1);
|
|
sprintf(url, "%s%s", remote->url, remote_ref->name);
|
|
slot = get_active_slot();
|
|
slot->results = &results;
|
|
curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
|
|
curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_null);
|
|
curl_easy_setopt(slot->curl, CURLOPT_URL, url);
|
|
curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, 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)\n",
|
|
results.curl_result, results.http_code);
|
|
} else {
|
|
free(url);
|
|
return error("Unable to start DELETE request");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
struct transfer_request *request;
|
|
struct transfer_request *next_request;
|
|
int nr_refspec = 0;
|
|
char **refspec = NULL;
|
|
struct remote_lock *ref_lock = NULL;
|
|
struct remote_lock *info_ref_lock = NULL;
|
|
struct rev_info revs;
|
|
int delete_branch = 0;
|
|
int force_delete = 0;
|
|
int objects_to_send;
|
|
int rc = 0;
|
|
int i;
|
|
int new_refs;
|
|
struct ref *ref;
|
|
char *rewritten_url = NULL;
|
|
|
|
setup_git_directory();
|
|
|
|
remote = xcalloc(sizeof(*remote), 1);
|
|
|
|
argv++;
|
|
for (i = 1; i < argc; i++, argv++) {
|
|
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, "--verbose")) {
|
|
push_verbosely = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-d")) {
|
|
delete_branch = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-D")) {
|
|
delete_branch = 1;
|
|
force_delete = 1;
|
|
continue;
|
|
}
|
|
}
|
|
if (!remote->url) {
|
|
char *path = strstr(arg, "//");
|
|
remote->url = arg;
|
|
remote->path_len = strlen(arg);
|
|
if (path) {
|
|
remote->path = strchr(path+2, '/');
|
|
if (remote->path)
|
|
remote->path_len = strlen(remote->path);
|
|
}
|
|
continue;
|
|
}
|
|
refspec = argv;
|
|
nr_refspec = argc - i;
|
|
break;
|
|
}
|
|
|
|
#ifndef USE_CURL_MULTI
|
|
die("git-push is not available for http/https repository when not compiled with USE_CURL_MULTI");
|
|
#endif
|
|
|
|
if (!remote->url)
|
|
usage(http_push_usage);
|
|
|
|
if (delete_branch && nr_refspec != 1)
|
|
die("You must specify only one branch name when deleting a remote branch");
|
|
|
|
memset(remote_dir_exists, -1, 256);
|
|
|
|
http_init(NULL);
|
|
|
|
no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:");
|
|
|
|
if (remote->url && remote->url[strlen(remote->url)-1] != '/') {
|
|
rewritten_url = xmalloc(strlen(remote->url)+2);
|
|
strcpy(rewritten_url, remote->url);
|
|
strcat(rewritten_url, "/");
|
|
remote->path = rewritten_url + (remote->path - remote->url);
|
|
remote->path_len++;
|
|
remote->url = rewritten_url;
|
|
}
|
|
|
|
/* Verify DAV compliance/lock support */
|
|
if (!locking_available()) {
|
|
rc = 1;
|
|
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);
|
|
|
|
/* Check whether the remote has server info files */
|
|
remote->can_update_info_refs = 0;
|
|
remote->has_info_refs = remote_exists("info/refs");
|
|
remote->has_info_packs = remote_exists("objects/info/packs");
|
|
if (remote->has_info_refs) {
|
|
info_ref_lock = lock_remote("info/refs", LOCK_TIME);
|
|
if (info_ref_lock)
|
|
remote->can_update_info_refs = 1;
|
|
else {
|
|
fprintf(stderr, "Error: cannot lock existing info/refs\n");
|
|
rc = 1;
|
|
goto cleanup;
|
|
}
|
|
}
|
|
if (remote->has_info_packs)
|
|
fetch_indices();
|
|
|
|
/* Get a list of all local and remote heads to validate refspecs */
|
|
get_local_heads();
|
|
fprintf(stderr, "Fetching remote heads...\n");
|
|
get_dav_remote_heads();
|
|
|
|
/* Remove a remote branch if -d or -D was specified */
|
|
if (delete_branch) {
|
|
if (delete_remote_branch(refspec[0], force_delete) == -1)
|
|
fprintf(stderr, "Unable to delete remote branch %s\n",
|
|
refspec[0]);
|
|
goto cleanup;
|
|
}
|
|
|
|
/* match them up */
|
|
if (!remote_tail)
|
|
remote_tail = &remote_refs;
|
|
if (match_refs(local_refs, remote_refs, &remote_tail,
|
|
nr_refspec, (const char **) refspec, push_all)) {
|
|
rc = -1;
|
|
goto cleanup;
|
|
}
|
|
if (!remote_refs) {
|
|
fprintf(stderr, "No refs in common and none specified; doing nothing.\n");
|
|
rc = 0;
|
|
goto cleanup;
|
|
}
|
|
|
|
new_refs = 0;
|
|
for (ref = remote_refs; ref; ref = ref->next) {
|
|
char old_hex[60], *new_hex;
|
|
const char *commit_argv[4];
|
|
int commit_argc;
|
|
char *new_sha1_hex, *old_sha1_hex;
|
|
|
|
if (!ref->peer_ref)
|
|
continue;
|
|
|
|
if (is_zero_sha1(ref->peer_ref->new_sha1)) {
|
|
if (delete_remote_branch(ref->name, 1) == -1) {
|
|
error("Could not remove %s", ref->name);
|
|
rc = -4;
|
|
}
|
|
new_refs++;
|
|
continue;
|
|
}
|
|
|
|
if (!hashcmp(ref->old_sha1, ref->peer_ref->new_sha1)) {
|
|
if (push_verbosely || 1)
|
|
fprintf(stderr, "'%s': up-to-date\n", ref->name);
|
|
continue;
|
|
}
|
|
|
|
if (!force_all &&
|
|
!is_zero_sha1(ref->old_sha1) &&
|
|
!ref->force) {
|
|
if (!has_sha1_file(ref->old_sha1) ||
|
|
!ref_newer(ref->peer_ref->new_sha1,
|
|
ref->old_sha1)) {
|
|
/*
|
|
* 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);
|
|
rc = -2;
|
|
continue;
|
|
}
|
|
}
|
|
hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
|
|
new_refs++;
|
|
strcpy(old_hex, sha1_to_hex(ref->old_sha1));
|
|
new_hex = sha1_to_hex(ref->new_sha1);
|
|
|
|
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", old_hex, new_hex);
|
|
if (dry_run)
|
|
continue;
|
|
|
|
/* Lock remote branch ref */
|
|
ref_lock = lock_remote(ref->name, LOCK_TIME);
|
|
if (ref_lock == NULL) {
|
|
fprintf(stderr, "Unable to lock remote branch %s\n",
|
|
ref->name);
|
|
rc = 1;
|
|
continue;
|
|
}
|
|
|
|
/* Set up revision info for this refspec */
|
|
commit_argc = 3;
|
|
new_sha1_hex = xstrdup(sha1_to_hex(ref->new_sha1));
|
|
old_sha1_hex = NULL;
|
|
commit_argv[1] = "--objects";
|
|
commit_argv[2] = new_sha1_hex;
|
|
if (!push_all && !is_zero_sha1(ref->old_sha1)) {
|
|
old_sha1_hex = xmalloc(42);
|
|
sprintf(old_sha1_hex, "^%s",
|
|
sha1_to_hex(ref->old_sha1));
|
|
commit_argv[3] = old_sha1_hex;
|
|
commit_argc++;
|
|
}
|
|
init_revisions(&revs, setup_git_directory());
|
|
setup_revisions(commit_argc, commit_argv, &revs, NULL);
|
|
revs.edge_hint = 0; /* just in case */
|
|
free(new_sha1_hex);
|
|
if (old_sha1_hex) {
|
|
free(old_sha1_hex);
|
|
commit_argv[1] = NULL;
|
|
}
|
|
|
|
/* 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.commits, &revs, NULL);
|
|
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);
|
|
#ifdef USE_CURL_MULTI
|
|
fill_active_slots();
|
|
add_fill_function(NULL, fill_active_slot);
|
|
#endif
|
|
do {
|
|
finish_all_active_slots();
|
|
#ifdef USE_CURL_MULTI
|
|
fill_active_slots();
|
|
#endif
|
|
} while (request_queue_head && !aborted);
|
|
|
|
/* Update the remote branch if all went well */
|
|
if (aborted || !update_remote(ref->new_sha1, ref_lock))
|
|
rc = 1;
|
|
|
|
if (!rc)
|
|
fprintf(stderr, " done\n");
|
|
unlock_remote(ref_lock);
|
|
check_locks();
|
|
}
|
|
|
|
/* Update remote server info if appropriate */
|
|
if (remote->has_info_refs && new_refs) {
|
|
if (info_ref_lock && remote->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:
|
|
free(rewritten_url);
|
|
if (info_ref_lock)
|
|
unlock_remote(info_ref_lock);
|
|
free(remote);
|
|
|
|
curl_slist_free_all(no_pragma_header);
|
|
|
|
http_cleanup();
|
|
|
|
request = request_queue_head;
|
|
while (request != NULL) {
|
|
next_request = request->next;
|
|
release_request(request);
|
|
request = next_request;
|
|
}
|
|
|
|
return rc;
|
|
}
|