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) 2008 Lars Hjemli
   5  *
   6  * Licensed under GNU General Public License v2
   7  *   (see COPYING for full license text)
   8  */
   9
  10 #include "cgit.h"
  11 #include "html.h"
  12 #include "ui-shared.h"
  13
  14 static int print_ref_info(const char *refname, const unsigned char *sha1,
  15                           int flags, void *cb_data)
  16 {
  17         struct object *obj;
  18
  19         if (!(obj = parse_object(sha1)))
  20                 return 0;
  21
  22         htmlf("%s\t%s\n", sha1_to_hex(sha1), refname);
  23         if (obj->type == OBJ_TAG) {
  24                 if (!(obj = deref_tag(obj, refname, 0)))
  25                         return 0;
  26                 htmlf("%s\t%s^{}\n", sha1_to_hex(obj->sha1), refname);
  27         }
  28         return 0;
  29 }
  30
  31 static void print_pack_info(struct cgit_context *ctx)
  32 {
  33         struct packed_git *pack;
  34         int ofs;
  35
  36         ctx->page.mimetype = "text/plain";
  37         ctx->page.filename = "objects/info/packs";
  38         cgit_print_http_headers(ctx);
  39         ofs = strlen(ctx->repo->path) + strlen("/objects/pack/");
  40         prepare_packed_git();
  41         for (pack = packed_git; pack; pack = pack->next)
  42                 if (pack->pack_local)
  43                         htmlf("P %s\n", pack->pack_name + ofs);
  44 }
  45
  46 static void send_file(struct cgit_context *ctx, char *path)
  47 {
  48         struct stat st;
  49
  50         if (stat(path, &st)) {
  51                 switch (errno) {
  52                 case ENOENT:
  53                         html_status(404, "Not found", 0);
  54                         break;
  55                 case EACCES:
  56                         html_status(403, "Forbidden", 0);
  57                         break;
  58                 default:
  59                         html_status(400, "Bad request", 0);
  60                 }
  61                 return;
  62         }
  63         ctx->page.mimetype = "application/octet-stream";
  64         ctx->page.filename = path;
  65         if (prefixcmp(ctx->repo->path, path))
  66                 ctx->page.filename += strlen(ctx->repo->path) + 1;
  67         cgit_print_http_headers(ctx);
  68         html_include(path);
  69 }
  70
  71 void cgit_clone_info(struct cgit_context *ctx)
  72 {
  73         if (!ctx->qry.path || strcmp(ctx->qry.path, "refs"))
  74                 return;
  75
  76         ctx->page.mimetype = "text/plain";
  77         ctx->page.filename = "info/refs";
  78         cgit_print_http_headers(ctx);
  79         for_each_ref(print_ref_info, ctx);
  80 }
  81
  82 void cgit_clone_objects(struct cgit_context *ctx)
  83 {
  84         if (!ctx->qry.path) {
  85                 html_status(400, "Bad request", 0);
  86                 return;
  87         }
  88
  89         if (!strcmp(ctx->qry.path, "info/packs")) {
  90                 print_pack_info(ctx);
  91                 return;
  92         }
  93
  94         send_file(ctx, git_path("objects/%s", ctx->qry.path));
  95 }
  96
  97 void cgit_clone_head(struct cgit_context *ctx)
  98 {
  99         send_file(ctx, git_path("%s", "HEAD"));
 100 }