[PATCH] http-push: refactor request url creation
From: Tay Ray Chuan <hidden>
Date: 2016-06-15 22:46:03
Currently, functions that deal with objects on the remote repository have to allocate and do strcpys to generate the URL. This patch saves them this trouble, by providing two functions, "append_remote_object_url" and "get_remote_object_url". Both generate a URL, with either the object's 2-digit hex directory (eg. /objects/a1/), or the complete object location (eg. /objects/a1/b2). However, they differ in that "append_remote_object_url" appends this URL to a strbuf, while "get_remote_object_url" wraps around the former and returns the URL directly in char*. Users usually would use "get_remote_object_url", but may find "append_remote_object_url" useful if they require further string operations on the URL. PS. In "start_fetch_loose", the variable "url" which is passed to "curl_easy_setopt" is removed, and in its place "request->url" is used. This is safe, since curl strdup's it. Signed-off-by: Tay Ray Chuan <redacted> Acked-by: Johannes Schindelin <redacted> Acked-by: Junio C Hamano <redacted> --- * renamed only_two_digit_postfix in original patch to only_two_digit_prefix * rebased and generated on master (5dc1308) * updated with Junio's changes (if (...) and fix memory leak) * updated with Junio's double interface * rebased and generated on master (297f6a5) http-push.c | 64 +++++++++++++++++++++++----------------------------------- 1 files changed, 25 insertions(+), 39 deletions(-)
diff --git a/http-push.c b/http-push.c
index 59037df..6511d19 100644
--- a/http-push.c
+++ b/http-push.c@@ -209,6 +209,20 @@ static struct curl_slist *get_dav_token_headers(struct remote_lock *lock, enum d return dav_headers; } +static void append_remote_object_url(struct strbuf *buf, const char *url, const char *hex, int only_two_digit_prefix) +{ + strbuf_addf(buf, "%sobjects/%.*s/", url, 2, hex); + if (!only_two_digit_prefix) + strbuf_addf(buf, "%s", hex+2); +} + +static char *get_remote_object_url(const char *url, const char *hex, int only_two_digit_prefix) +{ + struct strbuf buf = STRBUF_INIT; + append_remote_object_url(&buf, url, hex, only_two_digit_prefix); + return strbuf_detach(&buf, NULL); +} + static void finish_request(struct transfer_request *request); static void release_request(struct transfer_request *request);
@@ -254,8 +268,6 @@ static void start_fetch_loose(struct transfer_request *request) char *hex = sha1_to_hex(request->obj->sha1); char *filename; char prevfile[PATH_MAX]; - char *url; - char *posn; int prevlocal; unsigned char prev_buf[PREV_BUF_SIZE]; ssize_t prev_read = 0;
@@ -305,17 +317,7 @@ static void start_fetch_loose(struct transfer_request *request) git_SHA1_Init(&request->c); - url = xmalloc(strlen(remote->url) + 50); - request->url = xmalloc(strlen(remote->url) + 50); - strcpy(url, remote->url); - posn = url + strlen(remote->url); - strcpy(posn, "objects/"); - posn += 8; - memcpy(posn, hex, 2); - posn += 2; - *(posn++) = '/'; - strcpy(posn, hex + 2); - strcpy(request->url, url); + request->url = get_remote_object_url(remote->url, hex, 0); /* If a previous temp file is present, process what was already fetched. */
@@ -359,7 +361,7 @@ static void start_fetch_loose(struct transfer_request *request) curl_easy_setopt(slot->curl, CURLOPT_FILE, request); curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file); curl_easy_setopt(slot->curl, CURLOPT_ERRORBUFFER, request->errorstr); - curl_easy_setopt(slot->curl, CURLOPT_URL, url); + curl_easy_setopt(slot->curl, CURLOPT_URL, request->url); curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, no_pragma_header); /* If we have successfully processed data from a previous fetch
@@ -388,16 +390,8 @@ static void start_mkcol(struct transfer_request *request) { char *hex = sha1_to_hex(request->obj->sha1); struct active_request_slot *slot; - char *posn; - request->url = xmalloc(strlen(remote->url) + 13); - strcpy(request->url, remote->url); - posn = request->url + strlen(remote->url); - strcpy(posn, "objects/"); - posn += 8; - memcpy(posn, hex, 2); - posn += 2; - strcpy(posn, "/"); + request->url = get_remote_object_url(remote->url, hex, 1); slot = get_active_slot(); slot->callback_func = process_response;
@@ -512,7 +506,7 @@ static void start_put(struct transfer_request *request) { char *hex = sha1_to_hex(request->obj->sha1); struct active_request_slot *slot; - char *posn; + struct strbuf buf = STRBUF_INIT; enum object_type type; char hdr[50]; void *unpacked;
@@ -551,21 +545,13 @@ static void start_put(struct transfer_request *request) 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); + strbuf_addstr(&buf, "Destination: "); + append_remote_object_url(&buf, remote->url, hex, 0); + request->dest = strbuf_detach(&buf, NULL); + + append_remote_object_url(&buf, remote->url, hex, 0); + strbuf_addstr(&buf, request->lock->token); + request->url = strbuf_detach(&buf, NULL); slot = get_active_slot(); slot->callback_func = process_response;
--
1.6.1.1.251.g0dfa1