ui-clone.c

   1 /* ui-clone.c: functions for http cloning, based on
   2  * git's http-backend.c by Shawn O. Pearce
   3  *
   4  * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
   5  *
   6  * Licensed under GNU General Public License v2
   7  *   (see COPYING for full license text)
   8  */
   9
  10 #include "cgit.h"
  11 #include "ui-clone.h"
  12 #include "html.h"
  13 #include "ui-shared.h"
  14
  15 static int print_ref_info(const char *refname, const unsigned char *sha1,
  16                           int flags, void *cb_data)
  17 {
  18         struct object *obj;
  19
  20         if (!(obj = parse_object(sha1)))
  21                 return 0;
  22
  23         htmlf("%s\t%s\n", sha1_to_hex(sha1), refname);
  24         if (obj->type == OBJ_TAG) {
  25                 if (!(obj = deref_tag(obj, refname, 0)))
  26                         return 0;
  27                 htmlf("%s\t%s^{}\n", sha1_to_hex(obj->sha1), refname);
  28         }
  29         return 0;
  30 }
  31
  32 static void print_pack_info(struct cgit_context *ctx)
  33 {
  34         struct packed_git *pack;
  35         int ofs;
  36
  37         ctx->page.mimetype = "text/plain";
  38         ctx->page.filename = "objects/info/packs";
  39         cgit_print_http_headers(ctx);
  40         ofs = strlen(ctx->repo->path) + strlen("/objects/pack/");
  41         prepare_packed_git();
  42         for (pack = packed_git; pack; pack = pack->next)
  43                 if (pack->pack_local)
  44                         htmlf("P %s\n", pack->pack_name + ofs);
  45 }
  46
  47 static void send_file(struct cgit_context *ctx, char *path)
  48 {
  49         struct stat st;
  50
  51         if (stat(path, &st)) {
  52                 switch (errno) {
  53                 case ENOENT:
  54                         html_status(404, "Not found", 0);
  55                         break;
  56                 case EACCES:
  57                         html_status(403, "Forbidden", 0);
  58                         break;
  59                 default:
  60                         html_status(400, "Bad request", 0);
  61                 }
  62                 return;
  63         }
  64         ctx->page.mimetype = "application/octet-stream";
  65         ctx->page.filename = path;
  66         if (prefixcmp(ctx->repo->path, path))
  67                 ctx->page.filename += strlen(ctx->repo->path) + 1;
  68         cgit_print_http_headers(ctx);
  69         html_include(path);
  70 }
  71
  72 void cgit_clone_info(struct cgit_context *ctx)
  73 {
  74         if (!ctx->qry.path || strcmp(ctx->qry.path, "refs"))
  75                 return;
  76
  77         ctx->page.mimetype = "text/plain";
  78         ctx->page.filename = "info/refs";
  79         cgit_print_http_headers(ctx);
  80         for_each_ref(print_ref_info, ctx);
  81 }
  82
  83 void cgit_clone_objects(struct cgit_context *ctx)
  84 {
  85         if (!ctx->qry.path) {
  86                 html_status(400, "Bad request", 0);
  87                 return;
  88         }
  89
  90         if (!strcmp(ctx->qry.path, "info/packs")) {
  91                 print_pack_info(ctx);
  92                 return;
  93         }
  94
  95         send_file(ctx, git_path("objects/%s", ctx->qry.path));
  96 }
  97
  98 void cgit_clone_head(struct cgit_context *ctx)
  99 {
 100         send_file(ctx, git_path("%s", "HEAD"));
 101 }