diff options
| -rw-r--r-- | http-fetch.c | 45 |
1 files changed, 38 insertions, 7 deletions
diff --git a/http-fetch.c b/http-fetch.c index 17051fe..77f530c 100644 --- a/http-fetch.c +++ b/http-fetch.c @@ -144,10 +144,11 @@ static int fetch_alternates(char *base) char *url; char *data; int i = 0; + int http_specific = 1; if (got_alternates) return 0; data = xmalloc(4096); - buffer.size = 4096; + buffer.size = 4095; buffer.posn = 0; buffer.buffer = data; @@ -162,6 +163,8 @@ static int fetch_alternates(char *base) curl_easy_setopt(curl, CURLOPT_URL, url); if (curl_easy_perform(curl) || !buffer.posn) { + http_specific = 0; + sprintf(url, "%s/objects/info/alternates", base); curl_easy_setopt(curl, CURLOPT_FILE, &buffer); @@ -173,17 +176,45 @@ static int fetch_alternates(char *base) } } + data[buffer.posn] = '\0'; + while (i < buffer.posn) { int posn = i; while (posn < buffer.posn && data[posn] != '\n') posn++; if (data[posn] == '\n') { + int okay = 0; + int serverlen = 0; + struct alt_base *newalt; + char *target = NULL; if (data[i] == '/') { - int serverlen = strchr(base + 8, '/') - base; - // skip 'objects' at end - char *target = - xmalloc(serverlen + posn - i - 6); - struct alt_base *newalt; + serverlen = strchr(base + 8, '/') - base; + okay = 1; + } else if (!memcmp(data + i, "../", 3)) { + i += 3; + serverlen = strlen(base); + while (i + 2 < posn && + !memcmp(data + i, "../", 3)) { + do { + serverlen--; + } while (serverlen && + base[serverlen - 1] != '/'); + i += 3; + } + // If the server got removed, give up. + okay = strchr(base, ':') - base + 3 < + serverlen; + } else if (http_specific) { + char *colon = strchr(data + i, ':'); + char *slash = strchr(data + i, '/'); + if (colon && slash && colon < data + posn && + slash < data + posn && colon < slash) { + okay = 1; + } + } + // skip 'objects' at end + if (okay) { + target = xmalloc(serverlen + posn - i - 6); strncpy(target, base, serverlen); strncpy(target + serverlen, data + i, posn - i - 7); @@ -235,7 +266,7 @@ static int fetch_indices(struct alt_base *repo) curl_easy_setopt(curl, CURLOPT_HTTPHEADER, NULL); if (curl_easy_perform(curl)) { - return error("Unable to get pack index %s", url); + return -1; } while (i < buffer.posn) { |