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diff --git a/http-fetch.c b/http-fetch.c
index de5fc44e660e3eb6f52191dd0983744447a2fe46..bc74f30f76fe0200f6c7ecc215ee1cd9211670f4 100644 (file)
--- a/http-fetch.c
+++ b/http-fetch.c
#define PREV_BUF_SIZE 4096
#define RANGE_HEADER_SIZE 30
-static int commits_on_stdin = 0;
+static int commits_on_stdin;
static int got_alternates = -1;
-static int corrupt_object_found = 0;
+static int corrupt_object_found;
static struct curl_slist *no_pragma_header;
struct alt_base *next;
};
-static struct alt_base *alt = NULL;
+static struct alt_base *alt;
enum object_request_state {
WAITING,
};
#endif
-static struct object_request *object_queue_head = NULL;
+static struct object_request *object_queue_head;
static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
void *data)
return size;
}
+static int missing__target(int code, int result)
+{
+ return /* file:// URL -- do we ever use one??? */
+ (result == CURLE_FILE_COULDNT_READ_FILE) ||
+ /* http:// and https:// URL */
+ (code == 404 && result == CURLE_HTTP_RETURNED_ERROR) ||
+ /* ftp:// URL */
+ (code == 550 && result == CURLE_FTP_COULDNT_RETR_FILE)
+ ;
+}
+
+#define missing_target(a) missing__target((a)->http_code, (a)->curl_result)
+
static void fetch_alternates(const char *base);
static void process_object_response(void *callback_data);
unlink(obj_req->tmpfile);
return;
}
- if (memcmp(obj_req->sha1, obj_req->real_sha1, 20)) {
+ if (hashcmp(obj_req->sha1, obj_req->real_sha1)) {
unlink(obj_req->tmpfile);
return;
}
obj_req->state = COMPLETE;
/* Use alternates if necessary */
- if (obj_req->http_code == 404 ||
- obj_req->curl_result == CURLE_FILE_COULDNT_READ_FILE) {
+ if (missing_target(obj_req)) {
fetch_alternates(alt->base);
if (obj_req->repo->next != NULL) {
obj_req->repo =
char *filename = sha1_file_name(sha1);
newreq = xmalloc(sizeof(*newreq));
- memcpy(newreq->sha1, sha1, 20);
+ hashcpy(newreq->sha1, sha1);
newreq->repo = alt;
newreq->url = NULL;
newreq->local = -1;
return;
}
} else if (slot->curl_result != CURLE_OK) {
- if (slot->http_code != 404 &&
- slot->curl_result != CURLE_FILE_COULDNT_READ_FILE) {
+ if (!missing_target(slot)) {
got_alternates = -1;
return;
}
char *target = NULL;
char *path;
if (data[i] == '/') {
- serverlen = strchr(base + 8, '/') - base;
- okay = 1;
+ /* This counts
+ * http://git.host/pub/scm/linux.git/
+ * -----------here^
+ * so memcpy(dst, base, serverlen) will
+ * copy up to "...git.host".
+ */
+ const char *colon_ss = strstr(base,"://");
+ if (colon_ss) {
+ serverlen = (strchr(colon_ss + 3, '/')
+ - base);
+ okay = 1;
+ }
} else if (!memcmp(data + i, "../", 3)) {
+ /* Relative URL; chop the corresponding
+ * number of subpath from base (and ../
+ * from data), and concatenate the result.
+ *
+ * The code first drops ../ from data, and
+ * then drops one ../ from data and one path
+ * from base. IOW, one extra ../ is dropped
+ * from data than path is dropped from base.
+ *
+ * This is not wrong. The alternate in
+ * http://git.host/pub/scm/linux.git/
+ * to borrow from
+ * http://git.host/pub/scm/linus.git/
+ * is ../../linus.git/objects/. You need
+ * two ../../ to borrow from your direct
+ * neighbour.
+ */
i += 3;
serverlen = strlen(base);
while (i + 2 < posn &&
okay = 1;
}
}
- /* skip 'objects' at end */
+ /* skip "objects\n" at end */
if (okay) {
target = xmalloc(serverlen + posn - i - 6);
- strlcpy(target, base, serverlen);
- strlcpy(target + serverlen, data + i, posn - i - 6);
+ memcpy(target, base, serverlen);
+ memcpy(target + serverlen, data + i,
+ posn - i - 7);
+ target[serverlen + posn - i - 7] = 0;
if (get_verbosely)
fprintf(stderr,
"Also look at %s\n", target);
strcat(ctx->name, ".");
strcat(ctx->name, c);
- if (ctx->cdata) {
- free(ctx->cdata);
- ctx->cdata = NULL;
- }
+ free(ctx->cdata);
+ ctx->cdata = NULL;
ctx->userFunc(ctx, 0);
}
xml_cdata(void *userData, const XML_Char *s, int len)
{
struct xml_ctx *ctx = (struct xml_ctx *)userData;
- if (ctx->cdata)
- free(ctx->cdata);
+ free(ctx->cdata);
ctx->cdata = xmalloc(len + 1);
strlcpy(ctx->cdata, s, len + 1);
}
ls->dentry_flags |= IS_DIR;
}
} else if (!strcmp(ctx->name, DAV_PROPFIND_RESP)) {
- if (ls->dentry_name) {
- free(ls->dentry_name);
- }
+ free(ls->dentry_name);
ls->dentry_name = NULL;
ls->dentry_flags = 0;
}
ls.flags = flags;
ls.repo = repo;
- ls.path = strdup(path);
+ ls.path = xstrdup(path);
ls.dentry_name = NULL;
ls.dentry_flags = 0;
ls.userData = userData;
if (start_active_slot(slot)) {
run_active_slot(slot);
if (results.curl_result != CURLE_OK) {
- if (results.http_code == 404 ||
- results.curl_result == CURLE_FILE_COULDNT_READ_FILE) {
+ if (missing_target(&results)) {
repo->got_indices = 1;
free(buffer.buffer);
return 0;
int ret = 0;
struct object_request *obj_req = object_queue_head;
- while (obj_req != NULL && memcmp(obj_req->sha1, sha1, 20))
+ while (obj_req != NULL && hashcmp(obj_req->sha1, sha1))
obj_req = obj_req->next;
if (obj_req == NULL)
return error("Couldn't find request for %s in the queue", hex);
ret = error("Request for %s aborted", hex);
} else if (obj_req->curl_result != CURLE_OK &&
obj_req->http_code != 416) {
- if (obj_req->http_code == 404 ||
- obj_req->curl_result == CURLE_FILE_COULDNT_READ_FILE)
+ if (missing_target(obj_req))
ret = -1; /* Be silent, it is probably in a pack. */
else
ret = error("%s (curl_result = %d, http_code = %ld, sha1 = %s)",
} else if (obj_req->zret != Z_STREAM_END) {
corrupt_object_found++;
ret = error("File %s (%s) corrupt", hex, obj_req->url);
- } else if (memcmp(obj_req->sha1, obj_req->real_sha1, 20)) {
+ } else if (hashcmp(obj_req->sha1, obj_req->real_sha1)) {
ret = error("File %s has bad hash", hex);
} else if (obj_req->rename < 0) {
ret = error("unable to write sha1 filename %s",