int active_requests = 0;
#ifdef USE_CURL_MULTI
-int max_requests = -1;
-CURLM *curlm;
+static int max_requests = -1;
+static CURLM *curlm;
#endif
#ifndef NO_CURL_EASY_DUPHANDLE
-CURL *curl_default;
+static CURL *curl_default;
#endif
char curl_errorstr[CURL_ERROR_SIZE];
-int curl_ssl_verify = -1;
-char *ssl_cert = NULL;
+static int curl_ssl_verify = -1;
+static char *ssl_cert = NULL;
#if LIBCURL_VERSION_NUM >= 0x070902
-char *ssl_key = NULL;
+static char *ssl_key = NULL;
#endif
#if LIBCURL_VERSION_NUM >= 0x070908
-char *ssl_capath = NULL;
+static char *ssl_capath = NULL;
#endif
-char *ssl_cainfo = NULL;
-long curl_low_speed_limit = -1;
-long curl_low_speed_time = -1;
-int curl_ftp_no_epsv = 0;
-char *curl_http_proxy = NULL;
+static char *ssl_cainfo = NULL;
+static long curl_low_speed_limit = -1;
+static long curl_low_speed_time = -1;
+static int curl_ftp_no_epsv = 0;
+static char *curl_http_proxy = NULL;
-struct curl_slist *pragma_header;
+static struct curl_slist *pragma_header;
-struct active_request_slot *active_queue_head = NULL;
+static struct active_request_slot *active_queue_head = NULL;
size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb,
struct buffer *buffer)
{
size_t size = eltsize * nmemb;
- if (size > buffer->size - buffer->posn)
- size = buffer->size - buffer->posn;
- memcpy(ptr, (char *) buffer->buffer + buffer->posn, size);
+ if (size > buffer->buf.len - buffer->posn)
+ size = buffer->buf.len - buffer->posn;
+ memcpy(ptr, buffer->buf.buf + buffer->posn, size);
buffer->posn += size;
+
return size;
}
size_t fwrite_buffer(const void *ptr, size_t eltsize,
- size_t nmemb, struct buffer *buffer)
+ size_t nmemb, struct strbuf *buffer)
{
size_t size = eltsize * nmemb;
- if (size > buffer->size - buffer->posn) {
- buffer->size = buffer->size * 3 / 2;
- if (buffer->size < buffer->posn + size)
- buffer->size = buffer->posn + size;
- buffer->buffer = xrealloc(buffer->buffer, buffer->size);
- }
- memcpy((char *) buffer->buffer + buffer->posn, ptr, size);
- buffer->posn += size;
+ strbuf_add(buffer, ptr, size);
data_received++;
return size;
}
size_t fwrite_null(const void *ptr, size_t eltsize,
- size_t nmemb, struct buffer *buffer)
+ size_t nmemb, struct strbuf *buffer)
{
data_received++;
return eltsize * nmemb;
slot->finished = NULL;
slot->callback_data = NULL;
slot->callback_func = NULL;
- curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, pragma_header);
curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, curl_errorstr);
curl_easy_setopt(slot->curl, CURLOPT_CUSTOMREQUEST, NULL);
static void closedown_active_slot(struct active_request_slot *slot)
{
- active_requests--;
- slot->in_use = 0;
+ active_requests--;
+ slot->in_use = 0;
}
void release_active_slot(struct active_request_slot *slot)
static void finish_active_slot(struct active_request_slot *slot)
{
closedown_active_slot(slot);
- curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code);
+ curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code);
if (slot->finished != NULL)
(*slot->finished) = 1;
slot->results->http_code = slot->http_code;
}
- /* Run callback if appropriate */
- if (slot->callback_func != NULL) {
- slot->callback_func(slot->callback_data);
- }
+ /* Run callback if appropriate */
+ if (slot->callback_func != NULL) {
+ slot->callback_func(slot->callback_data);
+ }
}
void finish_all_active_slots(void)
slot = slot->next;
}
}
+
+static inline int needs_quote(int ch)
+{
+ if (((ch >= 'A') && (ch <= 'Z'))
+ || ((ch >= 'a') && (ch <= 'z'))
+ || ((ch >= '0') && (ch <= '9'))
+ || (ch == '/')
+ || (ch == '-')
+ || (ch == '.'))
+ return 0;
+ return 1;
+}
+
+static inline int hex(int v)
+{
+ if (v < 10) return '0' + v;
+ else return 'A' + v - 10;
+}
+
+static char *quote_ref_url(const char *base, const char *ref)
+{
+ const char *cp;
+ char *dp, *qref;
+ int len, baselen, ch;
+
+ baselen = strlen(base);
+ len = baselen + 7; /* "/refs/" + NUL */
+ for (cp = ref; (ch = *cp) != 0; cp++, len++)
+ if (needs_quote(ch))
+ len += 2; /* extra two hex plus replacement % */
+ qref = xmalloc(len);
+ memcpy(qref, base, baselen);
+ memcpy(qref + baselen, "/refs/", 6);
+ for (cp = ref, dp = qref + baselen + 6; (ch = *cp) != 0; cp++) {
+ if (needs_quote(ch)) {
+ *dp++ = '%';
+ *dp++ = hex((ch >> 4) & 0xF);
+ *dp++ = hex(ch & 0xF);
+ }
+ else
+ *dp++ = ch;
+ }
+ *dp = 0;
+
+ return qref;
+}
+
+int http_fetch_ref(const char *base, const char *ref, unsigned char *sha1)
+{
+ char *url;
+ struct strbuf buffer = STRBUF_INIT;
+ struct active_request_slot *slot;
+ struct slot_results results;
+ int ret;
+
+ url = quote_ref_url(base, ref);
+ 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) {
+ strbuf_rtrim(&buffer);
+ if (buffer.len == 40)
+ ret = get_sha1_hex(buffer.buf, sha1);
+ else
+ ret = 1;
+ } else {
+ ret = error("Couldn't get %s for %s\n%s",
+ url, ref, curl_errorstr);
+ }
+ } else {
+ ret = error("Unable to start request");
+ }
+
+ strbuf_release(&buffer);
+ free(url);
+ return ret;
+}