diff options
Diffstat (limited to 'cgit/ui-clone.c')
| -rw-r--r-- | cgit/ui-clone.c | 142 | +142 −0 |
1 files changed, 142 insertions, 0 deletions
diff --git a/cgit/ui-clone.c b/cgit/ui-clone.c new file mode 100644 --- /dev/null +++ b/cgit/ui-clone.c @@ -0,0 +1,142 @@ +/* SPDX-FileCopyrightText: cgit Development Team <cgit@lists.zx2c4.com> + * SPDX-License-Identifier: GPL-2.0-only + */ + +/* ui-clone.c: functions for http cloning, based on + * git's http-backend.c by Shawn O. Pearce + * + * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com> + * + * Licensed under GNU General Public License v2 + * (see COPYING for full license text) + */ + +#define USE_THE_REPOSITORY_VARIABLE + +#include "cgit.h" +#include "ui-clone.h" +#include "html.h" +#include "ui-shared.h" +#include "packfile.h" + +static int print_ref_info(const struct reference *ref, void *cb_data) +{ + struct object *obj; + + if (!(obj = parse_object(the_repository, ref->oid))) + return 0; + + htmlf("%s\t%s\n", oid_to_hex(ref->oid), ref->name); + if (obj->type == OBJ_TAG) { + if (!(obj = deref_tag(the_repository, obj, ref->name, 0))) + return 0; + htmlf("%s\t%s^{}\n", oid_to_hex(&obj->oid), ref->name); + } + return 0; +} + +static void print_pack_info(void) +{ + struct odb_source *source; + char *offset; + + ctx.page.mimetype = "text/plain"; + ctx.page.filename = "objects/info/packs"; + cgit_print_http_headers(); + odb_reprepare(the_repository->objects); + for (source = the_repository->objects->sources; source; source = source->next) { + struct odb_source_files *files = odb_source_files_downcast(source); + struct packfile_list_entry *e; + for (e = files->packed->packs.head; e; e = e->next) { + struct packed_git *p = e->pack; + if (p->pack_local) { + offset = strrchr(p->pack_name, '/'); + if (offset && offset[1] != '\0') + ++offset; + else + offset = p->pack_name; + htmlf("P %s\n", offset); + } + } + } +} + +static void send_file(const char *path) +{ + struct stat st; + + if (stat(path, &st)) { + switch (errno) { + case ENOENT: + cgit_print_error_page(404, "Not found", "Not found"); + break; + case EACCES: + cgit_print_error_page(403, "Forbidden", "Forbidden"); + break; + default: + cgit_print_error_page(400, "Bad request", "Bad request"); + } + return; + } + ctx.page.mimetype = "application/octet-stream"; + ctx.page.filename = path; + skip_prefix(path, ctx.repo->path, &ctx.page.filename); + skip_prefix(ctx.page.filename, "/", &ctx.page.filename); + cgit_print_http_headers(); + html_include(path); +} + +void cgit_clone_info(void) +{ + if (!ctx.qry.path || strcmp(ctx.qry.path, "refs")) { + cgit_print_error_page(400, "Bad request", "Bad request"); + return; + } + + ctx.page.mimetype = "text/plain"; + ctx.page.filename = "info/refs"; + cgit_print_http_headers(); + refs_for_each_ref(get_main_ref_store(the_repository), + print_ref_info, NULL); +} + +void cgit_clone_objects(void) +{ + char *p, *path; + + if (!ctx.qry.path) + goto err; + + if (!strcmp(ctx.qry.path, "info/packs")) { + print_pack_info(); + return; + } + + /* Avoid directory traversal by forbidding "..", but also work around + * other funny business by just specifying a fairly strict format. For + * example, now we don't have to stress out about the Cygwin port. + */ + for (p = ctx.qry.path; *p; ++p) { + if (*p == '.' && *(p + 1) == '.') + goto err; + if (!isalnum(*p) && *p != '/' && *p != '.' && *p != '-') + goto err; + } + + path = repo_git_path(the_repository, "objects/%s", ctx.qry.path); + send_file(path); + free(path); + return; + +err: + cgit_print_error_page(400, "Bad request", "Bad request"); +} + +void cgit_clone_head(void) +{ + char *path; + + path = repo_git_path(the_repository, "HEAD"); + send_file(path); + free(path); +} |