Add support for cloning over http

This patch implements basic support for cloning over http, based on the
work on git-http-backend by Shawn O. Pearce.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>
This commit is contained in:
Lars Hjemli 2008-08-06 01:20:24 +02:00
parent 0f0ab148c6
commit 02a545e634
6 changed files with 140 additions and 0 deletions

View File

@ -56,6 +56,7 @@ OBJECTS += html.o
OBJECTS += parsing.o
OBJECTS += shared.o
OBJECTS += ui-blob.o
OBJECTS += ui-clone.o
OBJECTS += ui-commit.o
OBJECTS += ui-diff.o
OBJECTS += ui-log.o

19
cmd.c
View File

@ -11,6 +11,7 @@
#include "cache.h"
#include "ui-shared.h"
#include "ui-blob.h"
#include "ui-clone.h"
#include "ui-commit.h"
#include "ui-diff.h"
#include "ui-log.h"
@ -22,6 +23,11 @@
#include "ui-tag.h"
#include "ui-tree.h"
static void HEAD_fn(struct cgit_context *ctx)
{
cgit_clone_head(ctx);
}
static void about_fn(struct cgit_context *ctx)
{
if (ctx->repo)
@ -45,6 +51,11 @@ static void diff_fn(struct cgit_context *ctx)
cgit_print_diff(ctx->qry.sha1, ctx->qry.sha2, ctx->qry.path);
}
static void info_fn(struct cgit_context *ctx)
{
cgit_clone_info(ctx);
}
static void log_fn(struct cgit_context *ctx)
{
cgit_print_log(ctx->qry.sha1, ctx->qry.ofs, ctx->cfg.max_commit_count,
@ -59,6 +70,11 @@ static void ls_cache_fn(struct cgit_context *ctx)
cache_ls(ctx->cfg.cache_root);
}
static void objects_fn(struct cgit_context *ctx)
{
cgit_clone_objects(ctx);
}
static void repolist_fn(struct cgit_context *ctx)
{
cgit_print_repolist();
@ -102,12 +118,15 @@ static void tree_fn(struct cgit_context *ctx)
struct cgit_cmd *cgit_get_cmd(struct cgit_context *ctx)
{
static struct cgit_cmd cmds[] = {
def_cmd(HEAD, 1, 0),
def_cmd(about, 0, 1),
def_cmd(blob, 1, 0),
def_cmd(commit, 1, 1),
def_cmd(diff, 1, 1),
def_cmd(info, 1, 0),
def_cmd(log, 1, 1),
def_cmd(ls_cache, 0, 0),
def_cmd(objects, 1, 0),
def_cmd(patch, 1, 0),
def_cmd(refs, 1, 1),
def_cmd(repolist, 0, 0),

7
html.c
View File

@ -51,6 +51,13 @@ void htmlf(const char *format, ...)
html(buf);
}
void html_status(int code, int more_headers)
{
htmlf("Status: %d\n", code);
if (!more_headers)
html("\n");
}
void html_txt(char *txt)
{
char *t = txt;

1
html.h
View File

@ -5,6 +5,7 @@ extern int htmlfd;
extern void html(const char *txt);
extern void htmlf(const char *format,...);
extern void html_status(int code, int more_headers);
extern void html_txt(char *txt);
extern void html_ntxt(int len, char *txt);
extern void html_attr(char *txt);

104
ui-clone.c Normal file
View File

@ -0,0 +1,104 @@
/* ui-clone.c: functions for http cloning, based on
* git's http-backend.c by Shawn O. Pearce
*
* Copyright (C) 2008 Lars Hjemli
*
* Licensed under GNU General Public License v2
* (see COPYING for full license text)
*/
#include "cgit.h"
#include "html.h"
#include "ui-shared.h"
static int print_ref_info(const char *refname, const unsigned char *sha1,
int flags, void *cb_data)
{
struct object *obj;
if (!(obj = parse_object(sha1)))
return 0;
if (!strcmp(refname, "HEAD") || !prefixcmp(refname, "refs/heads/"))
htmlf("%s\t%s\n", sha1_to_hex(sha1), refname);
else if (!prefixcmp(refname, "refs/tags") && obj->type == OBJ_TAG) {
if (!(obj = deref_tag(obj, refname, 0)))
return 0;
htmlf("%s\t%s\n", sha1_to_hex(sha1), refname);
htmlf("%s\t%s^{}\n", sha1_to_hex(obj->sha1), refname);
}
return 0;
}
static void print_pack_info(struct cgit_context *ctx)
{
struct packed_git *pack;
int ofs;
ctx->page.mimetype = "text/plain";
ctx->page.filename = "objects/info/packs";
cgit_print_http_headers(ctx);
ofs = strlen(ctx->repo->path) + strlen("/objects/pack/");
prepare_packed_git();
for (pack = packed_git; pack; pack = pack->next)
if (pack->pack_local)
htmlf("P %s\n", pack->pack_name + ofs);
}
static void send_file(struct cgit_context *ctx, char *path)
{
struct stat st;
int err;
if (stat(path, &st)) {
switch (errno) {
case ENOENT:
err = 404;
break;
case EACCES:
err = 403;
break;
default:
err = 400;
}
html_status(err, 0);
return;
}
ctx->page.mimetype = "application/octet-stream";
ctx->page.filename = path;
if (prefixcmp(ctx->repo->path, path))
ctx->page.filename += strlen(ctx->repo->path) + 1;
cgit_print_http_headers(ctx);
html_include(path);
}
void cgit_clone_info(struct cgit_context *ctx)
{
if (!ctx->qry.path || strcmp(ctx->qry.path, "refs"))
return;
ctx->page.mimetype = "text/plain";
ctx->page.filename = "info/refs";
cgit_print_http_headers(ctx);
for_each_ref(print_ref_info, ctx);
}
void cgit_clone_objects(struct cgit_context *ctx)
{
if (!ctx->qry.path) {
html_status(400, 0);
return;
}
if (!strcmp(ctx->qry.path, "info/packs")) {
print_pack_info(ctx);
return;
}
send_file(ctx, git_path("objects/%s", ctx->qry.path));
}
void cgit_clone_head(struct cgit_context *ctx)
{
send_file(ctx, git_path("%s", "HEAD"));
}

8
ui-clone.h Normal file
View File

@ -0,0 +1,8 @@
#ifndef UI_CLONE_H
#define UI_CLONE_H
void cgit_clone_info(struct cgit_context *ctx);
void cgit_clone_objects(struct cgit_context *ctx);
void cgit_clone_head(struct cgit_context *ctx);
#endif /* UI_CLONE_H */