ui-plain.c

   1 /* ui-plain.c: functions for output of plain blobs by path
   2  *
   3  * Copyright (C) 2008 Lars Hjemli
   4  *
   5  * Licensed under GNU General Public License v2
   6  *   (see COPYING for full license text)
   7  */
   8
   9 #include "cgit.h"
  10 #include "html.h"
  11 #include "ui-shared.h"
  12
  13 char *curr_rev;
  14 char *match_path;
  15 int match;
  16
  17 static void print_object(const unsigned char *sha1, const char *path)
  18 {
  19         enum object_type type;
  20         char *buf;
  21         unsigned long size;
  22
  23         type = sha1_object_info(sha1, &size);
  24         if (type == OBJ_BAD) {
  25                 html_status(404, "Not found", 0);
  26                 return;
  27         }
  28
  29         buf = read_sha1_file(sha1, &type, &size);
  30         if (!buf) {
  31                 html_status(404, "Not found", 0);
  32                 return;
  33         }
  34         ctx.page.mimetype = "text/plain";
  35         ctx.page.filename = fmt("%s", path);
  36         ctx.page.size = size;
  37         cgit_print_http_headers(&ctx);
  38         html_raw(buf, size);
  39         match = 1;
  40 }
  41
  42 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
  43                      const char *pathname, unsigned mode, int stage,
  44                      void *cbdata)
  45 {
  46         if (S_ISDIR(mode))
  47                 return READ_TREE_RECURSIVE;
  48
  49         if (S_ISREG(mode) && !strncmp(base, match_path, baselen) &&
  50             !strcmp(pathname, match_path + baselen))
  51                 print_object(sha1, pathname);
  52
  53         return 0;
  54 }
  55
  56 void cgit_print_plain(struct cgit_context *ctx)
  57 {
  58         const char *rev = ctx->qry.sha1;
  59         unsigned char sha1[20];
  60         struct commit *commit;
  61         const char *paths[] = {ctx->qry.path, NULL};
  62
  63         if (!rev)
  64                 rev = ctx->qry.head;
  65
  66         curr_rev = xstrdup(rev);
  67         if (get_sha1(rev, sha1)) {
  68                 html_status(404, "Not found", 0);
  69                 return;
  70         }
  71         commit = lookup_commit_reference(sha1);
  72         if (!commit || parse_commit(commit)) {
  73                 html_status(404, "Not found", 0);
  74                 return;
  75         }
  76         match_path = ctx->qry.path;
  77         read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree, NULL);
  78         if (!match)
  79                 html_status(404, "Not found", 0);
  80 }