ui-tree.c

   1 /* ui-tree.c: functions for tree output
   2  *
   3  * Copyright (C) 2006 Lars Hjemli
   4  *
   5  * Licensed under GNU General Public License v2
   6  *   (see COPYING for full license text)
   7  */
   8
   9 #include <ctype.h>
  10 #include "cgit.h"
  11 #include "html.h"
  12 #include "ui-shared.h"
  13
  14 char *curr_rev;
  15 char *match_path;
  16 int header = 0;
  17
  18 static void print_text_buffer(char *buf, unsigned long size)
  19 {
  20         unsigned long lineno, idx;
  21         const char *numberfmt =
  22                 "<a class='no' id='n%1$d' name='n%1$d' href='#n%1$d'>%1$d</a>\n";
  23
  24         html("<table summary='blob content' class='blob'>\n");
  25         html("<tr><td class='linenumbers'><pre>");
  26         idx = 0;
  27         lineno = 0;
  28         htmlf(numberfmt, ++lineno);
  29         while(idx < size - 1) { // skip absolute last newline
  30                 if (buf[idx] == '\n')
  31                         htmlf(numberfmt, ++lineno);
  32                 idx++;
  33         }
  34         html("</pre></td>\n");
  35         html("<td class='lines'><pre><code>");
  36         html_txt(buf);
  37         html("</code></pre></td></tr></table>\n");
  38 }
  39
  40 static void print_binary_buffer(char *buf, unsigned long size)
  41 {
  42         unsigned long ofs, idx;
  43
  44         html("<table summary='blob content' class='bin-blob'>\n");
  45         html("<tr><th>ofs</th><th>hex dump</th><th>ascii</th></tr>");
  46         for (ofs = 0; ofs < size; ofs += 32, buf += 32) {
  47                 htmlf("<tr><td class='right'>%04x</td><td class='hex'>", ofs);
  48                 for (idx = 0; idx < 32 && ofs + idx < size; idx++)
  49                         htmlf("%*s%02x",
  50                               idx == 16 ? 4 : 1, "",
  51                               buf[idx] & 0xff);
  52                 html(" </td><td class='hex'>");
  53                 for (idx = 0; idx < 32 && ofs + idx < size; idx++)
  54                         htmlf("%c", isgraph(buf[idx]) ? buf[idx] : '.');
  55                 html("</td></tr>\n");
  56         }
  57         html("</table>\n");
  58 }
  59
  60 static void print_object(const unsigned char *sha1, char *path)
  61 {
  62         enum object_type type;
  63         char *buf;
  64         unsigned long size;
  65
  66         type = sha1_object_info(sha1, &size);
  67         if (type == OBJ_BAD) {
  68                 cgit_print_error(fmt("Bad object name: %s",
  69                                      sha1_to_hex(sha1)));
  70                 return;
  71         }
  72
  73         buf = read_sha1_file(sha1, &type, &size);
  74         if (!buf) {
  75                 cgit_print_error(fmt("Error reading object %s",
  76                                      sha1_to_hex(sha1)));
  77                 return;
  78         }
  79
  80         html(" (");
  81         cgit_plain_link("plain", NULL, NULL, ctx.qry.head,
  82                         curr_rev, path);
  83         htmlf(")<br/>blob: %s\n", sha1_to_hex(sha1));
  84
  85         if (buffer_is_binary(buf, size))
  86                 print_binary_buffer(buf, size);
  87         else
  88                 print_text_buffer(buf, size);
  89 }
  90
  91
  92 static int ls_item(const unsigned char *sha1, const char *base, int baselen,
  93                    const char *pathname, unsigned int mode, int stage,
  94                    void *cbdata)
  95 {
  96         char *name;
  97         char *fullpath;
  98         enum object_type type;
  99         unsigned long size = 0;
 100
 101         name = xstrdup(pathname);
 102         fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
 103                        ctx.qry.path ? "/" : "", name);
 104
 105         if (!S_ISGITLINK(mode)) {
 106                 type = sha1_object_info(sha1, &size);
 107                 if (type == OBJ_BAD) {
 108                         htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
 109                               name,
 110                               sha1_to_hex(sha1));
 111                         return 0;
 112                 }
 113         }
 114
 115         html("<tr><td class='ls-mode'>");
 116         cgit_print_filemode(mode);
 117         html("</td><td>");
 118         if (S_ISGITLINK(mode)) {
 119                 htmlf("<a class='ls-mod' href='");
 120                 html_attr(fmt(ctx.repo->module_link,
 121                               name,
 122                               sha1_to_hex(sha1)));
 123                 html("'>");
 124                 html_txt(name);
 125                 html("</a>");
 126         } else if (S_ISDIR(mode)) {
 127                 cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
 128                                curr_rev, fullpath);
 129         } else {
 130                 cgit_tree_link(name, NULL, "ls-blob", ctx.qry.head,
 131                                curr_rev, fullpath);
 132         }
 133         htmlf("</td><td class='ls-size'>%li</td>", size);
 134
 135         html("<td>");
 136         cgit_log_link("log", NULL, "button", ctx.qry.head, curr_rev,
 137                       fullpath, 0, NULL, NULL, ctx.qry.showmsg);
 138         if (ctx.repo->max_stats)
 139                 cgit_stats_link("stats", NULL, "button", ctx.qry.head,
 140                                 fullpath);
 141         html("</td></tr>\n");
 142         free(name);
 143         return 0;
 144 }
 145
 146 static void ls_head()
 147 {
 148         html("<table summary='tree listing' class='list'>\n");
 149         html("<tr class='nohover'>");
 150         html("<th class='left'>Mode</th>");
 151         html("<th class='left'>Name</th>");
 152         html("<th class='right'>Size</th>");
 153         html("<th/>");
 154         html("</tr>\n");
 155         header = 1;
 156 }
 157
 158 static void ls_tail()
 159 {
 160         if (!header)
 161                 return;
 162         html("</table>\n");
 163         header = 0;
 164 }
 165
 166 static void ls_tree(const unsigned char *sha1, char *path)
 167 {
 168         struct tree *tree;
 169
 170         tree = parse_tree_indirect(sha1);
 171         if (!tree) {
 172                 cgit_print_error(fmt("Not a tree object: %s",
 173                                      sha1_to_hex(sha1)));
 174                 return;
 175         }
 176
 177         ls_head();
 178         read_tree_recursive(tree, "", 0, 1, NULL, ls_item, NULL);
 179         ls_tail();
 180 }
 181
 182
 183 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
 184                      const char *pathname, unsigned mode, int stage,
 185                      void *cbdata)
 186 {
 187         static int state;
 188         static char buffer[PATH_MAX];
 189         char *url;
 190
 191         if (state == 0) {
 192                 memcpy(buffer, base, baselen);
 193                 strcpy(buffer+baselen, pathname);
 194                 url = cgit_pageurl(ctx.qry.repo, "tree",
 195                                    fmt("h=%s&amp;path=%s", curr_rev, buffer));
 196                 html("/");
 197                 cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
 198                                curr_rev, buffer);
 199
 200                 if (strcmp(match_path, buffer))
 201                         return READ_TREE_RECURSIVE;
 202
 203                 if (S_ISDIR(mode)) {
 204                         state = 1;
 205                         ls_head();
 206                         return READ_TREE_RECURSIVE;
 207                 } else {
 208                         print_object(sha1, buffer);
 209                         return 0;
 210                 }
 211         }
 212         ls_item(sha1, base, baselen, pathname, mode, stage, NULL);
 213         return 0;
 214 }
 215
 216
 217 /*
 218  * Show a tree or a blob
 219  *   rev:  the commit pointing at the root tree object
 220  *   path: path to tree or blob
 221  */
 222 void cgit_print_tree(const char *rev, char *path)
 223 {
 224         unsigned char sha1[20];
 225         struct commit *commit;
 226         const char *paths[] = {path, NULL};
 227
 228         if (!rev)
 229                 rev = ctx.qry.head;
 230
 231         curr_rev = xstrdup(rev);
 232         if (get_sha1(rev, sha1)) {
 233                 cgit_print_error(fmt("Invalid revision name: %s", rev));
 234                 return;
 235         }
 236         commit = lookup_commit_reference(sha1);
 237         if (!commit || parse_commit(commit)) {
 238                 cgit_print_error(fmt("Invalid commit reference: %s", rev));
 239                 return;
 240         }
 241
 242         html("path: <a href='");
 243         html_attr(cgit_pageurl(ctx.qry.repo, "tree", fmt("h=%s", rev)));
 244         html("'>root</a>");
 245
 246         if (path == NULL) {
 247                 ls_tree(commit->tree->object.sha1, NULL);
 248                 return;
 249         }
 250
 251         match_path = path;
 252         read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree, NULL);
 253         ls_tail();
 254 }