gitweb.ps.run Git - ps-cgit/blob - ui-blob.c

   1 /* ui-blob.c: show blob content
   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 static char *match_path;
  14 static unsigned char *matched_sha1;
  15
  16 static int walk_tree(const unsigned char *sha1, const char *base,int baselen, const char *pathname, unsigned mode, int stage) {
  17         if(strncmp(base,match_path,baselen)
  18                 || strcmp(match_path+baselen,pathname) )
  19                 return READ_TREE_RECURSIVE;
  20         memmove(matched_sha1,sha1,20);
  21         return 0;
  22 }
  23
  24 void cgit_print_blob(const char *hex, char *path, const char *head)
  25 {
  26
  27         unsigned char sha1[20];
  28         enum object_type type;
  29         unsigned char *buf;
  30         unsigned long size;
  31         struct commit *commit;
  32         const char *paths[] = {path, NULL};
  33
  34         if (hex) {
  35                 if (get_sha1_hex(hex, sha1)){
  36                         cgit_print_error(fmt("Bad hex value: %s", hex));
  37                         return;
  38                 }
  39         } else {
  40                 if (get_sha1(head,sha1)) {
  41                         cgit_print_error(fmt("Bad ref: %s", head));
  42                         return;
  43                 }
  44         }
  45
  46         type = sha1_object_info(sha1, &size);
  47
  48         if((!hex) && type == OBJ_COMMIT && path) {
  49                 commit = lookup_commit_reference(sha1);
  50                 match_path = path;
  51                 matched_sha1 = sha1;
  52                 read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree);
  53                 type = sha1_object_info(sha1,&size);
  54         }
  55
  56         if (type == OBJ_BAD) {
  57                 cgit_print_error(fmt("Bad object name: %s", hex));
  58                 return;
  59         }
  60
  61         buf = read_sha1_file(sha1, &type, &size);
  62         if (!buf) {
  63                 cgit_print_error(fmt("Error reading object %s", hex));
  64                 return;
  65         }
  66
  67         buf[size] = '\0';
  68         ctx.page.mimetype = ctx.qry.mimetype;
  69         ctx.page.filename = path;
  70         cgit_print_http_headers(&ctx);
  71         write(htmlfd, buf, size);
  72 }