126 lines
2.9 KiB
C
126 lines
2.9 KiB
C
/* ui-clone.c: functions for http cloning, based on
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* git's http-backend.c by Shawn O. Pearce
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*
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* Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
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*
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* Licensed under GNU General Public License v2
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* (see COPYING for full license text)
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*/
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#include "cgit.h"
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#include "ui-clone.h"
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#include "html.h"
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#include "ui-shared.h"
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#include "packfile.h"
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#include "object-store.h"
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static int print_ref_info(const char *refname, const struct object_id *oid,
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int flags, void *cb_data)
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{
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struct object *obj;
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if (!(obj = parse_object(the_repository, oid)))
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return 0;
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htmlf("%s\t%s\n", oid_to_hex(oid), refname);
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if (obj->type == OBJ_TAG) {
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if (!(obj = deref_tag(the_repository, obj, refname, 0)))
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return 0;
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htmlf("%s\t%s^{}\n", oid_to_hex(&obj->oid), refname);
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}
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return 0;
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}
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static void print_pack_info(void)
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{
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struct packed_git *pack;
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char *offset;
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ctx.page.mimetype = "text/plain";
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ctx.page.filename = "objects/info/packs";
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cgit_print_http_headers();
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reprepare_packed_git(the_repository);
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for (pack = get_packed_git(the_repository); pack; pack = pack->next) {
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if (pack->pack_local) {
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offset = strrchr(pack->pack_name, '/');
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if (offset && offset[1] != '\0')
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++offset;
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else
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offset = pack->pack_name;
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htmlf("P %s\n", offset);
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}
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}
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}
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static void send_file(const char *path)
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{
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struct stat st;
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if (stat(path, &st)) {
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switch (errno) {
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case ENOENT:
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cgit_print_error_page(404, "Not found", "Not found");
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break;
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case EACCES:
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cgit_print_error_page(403, "Forbidden", "Forbidden");
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break;
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default:
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cgit_print_error_page(400, "Bad request", "Bad request");
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}
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return;
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}
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ctx.page.mimetype = "application/octet-stream";
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ctx.page.filename = path;
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skip_prefix(path, ctx.repo->path, &ctx.page.filename);
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skip_prefix(ctx.page.filename, "/", &ctx.page.filename);
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cgit_print_http_headers();
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html_include(path);
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}
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void cgit_clone_info(void)
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{
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if (!ctx.qry.path || strcmp(ctx.qry.path, "refs")) {
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cgit_print_error_page(400, "Bad request", "Bad request");
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return;
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}
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ctx.page.mimetype = "text/plain";
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ctx.page.filename = "info/refs";
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cgit_print_http_headers();
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for_each_ref(print_ref_info, NULL);
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}
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void cgit_clone_objects(void)
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{
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char *p;
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if (!ctx.qry.path)
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goto err;
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if (!strcmp(ctx.qry.path, "info/packs")) {
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print_pack_info();
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return;
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}
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/* Avoid directory traversal by forbidding "..", but also work around
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* other funny business by just specifying a fairly strict format. For
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* example, now we don't have to stress out about the Cygwin port.
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*/
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for (p = ctx.qry.path; *p; ++p) {
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if (*p == '.' && *(p + 1) == '.')
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goto err;
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if (!isalnum(*p) && *p != '/' && *p != '.' && *p != '-')
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goto err;
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}
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send_file(git_path("objects/%s", ctx.qry.path));
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return;
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err:
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cgit_print_error_page(400, "Bad request", "Bad request");
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}
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void cgit_clone_head(void)
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{
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send_file(git_path("%s", "HEAD"));
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}
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