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(const char *name, 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
  26         if (ctx.cfg.enable_tree_linenumbers) {
  27                 html("<tr><td class='linenumbers'><pre>");
  28                 idx = 0;
  29                 lineno = 0;
  30
  31                 if (size) {
  32                         htmlf(numberfmt, ++lineno);
  33                         while(idx < size - 1) { // skip absolute last newline
  34                                 if (buf[idx] == '\n')
  35                                         htmlf(numberfmt, ++lineno);
  36                                 idx++;
  37                         }
  38                 }
  39                 html("</pre></td>\n");
  40         }
  41         else {
  42                 html("<tr>\n");
  43         }
  44
  45         if (ctx.repo->source_filter) {
  46                 html("<td class='lines'><pre><code>");
  47                 ctx.repo->source_filter->argv[1] = xstrdup(name);
  48                 cgit_open_filter(ctx.repo->source_filter);
  49                 write(STDOUT_FILENO, buf, size);
  50                 cgit_close_filter(ctx.repo->source_filter);
  51                 html("</code></pre></td></tr></table>\n");
  52                 return;
  53         }
  54
  55         html("<td class='lines'><pre><code>");
  56         html_txt(buf);
  57         html("</code></pre></td></tr></table>\n");
  58 }
  59
  60 #define ROWLEN 32
  61
  62 static void print_binary_buffer(char *buf, unsigned long size)
  63 {
  64         unsigned long ofs, idx;
  65         static char ascii[ROWLEN + 1];
  66
  67         html("<table summary='blob content' class='bin-blob'>\n");
  68         html("<tr><th>ofs</th><th>hex dump</th><th>ascii</th></tr>");
  69         for (ofs = 0; ofs < size; ofs += ROWLEN, buf += ROWLEN) {
  70                 htmlf("<tr><td class='right'>%04x</td><td class='hex'>", ofs);
  71                 for (idx = 0; idx < ROWLEN && ofs + idx < size; idx++)
  72                         htmlf("%*s%02x",
  73                               idx == 16 ? 4 : 1, "",
  74                               buf[idx] & 0xff);
  75                 html(" </td><td class='hex'>");
  76                 for (idx = 0; idx < ROWLEN && ofs + idx < size; idx++)
  77                         ascii[idx] = isgraph(buf[idx]) ? buf[idx] : '.';
  78                 ascii[idx] = '\0';
  79                 html_txt(ascii);
  80                 html("</td></tr>\n");
  81         }
  82         html("</table>\n");
  83 }
  84
  85 static void print_object(const unsigned char *sha1, char *path, const char *basename)
  86 {
  87         enum object_type type;
  88         char *buf;
  89         unsigned long size;
  90
  91         type = sha1_object_info(sha1, &size);
  92         if (type == OBJ_BAD) {
  93                 cgit_print_error(fmt("Bad object name: %s",
  94                                      sha1_to_hex(sha1)));
  95                 return;
  96         }
  97
  98         buf = read_sha1_file(sha1, &type, &size);
  99         if (!buf) {
 100                 cgit_print_error(fmt("Error reading object %s",
 101                                      sha1_to_hex(sha1)));
 102                 return;
 103         }
 104
 105         htmlf("blob: %s (", sha1_to_hex(sha1));
 106         cgit_plain_link("plain", NULL, NULL, ctx.qry.head,
 107                         curr_rev, path);
 108         html(")\n");
 109
 110         if (ctx.cfg.max_blob_size && size / 1024 > ctx.cfg.max_blob_size) {
 111                 htmlf("<div class='error'>blob size (%dKB) exceeds display size limit (%dKB).</div>",
 112                                 size / 1024, ctx.cfg.max_blob_size);
 113                 return;
 114         }
 115
 116         if (buffer_is_binary(buf, size))
 117                 print_binary_buffer(buf, size);
 118         else
 119                 print_text_buffer(basename, buf, size);
 120 }
 121
 122
 123 static int ls_item(const unsigned char *sha1, const char *base, int baselen,
 124                    const char *pathname, unsigned int mode, int stage,
 125                    void *cbdata)
 126 {
 127         char *name;
 128         char *fullpath;
 129         char *class;
 130         enum object_type type;
 131         unsigned long size = 0;
 132
 133         name = xstrdup(pathname);
 134         fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
 135                        ctx.qry.path ? "/" : "", name);
 136
 137         if (!S_ISGITLINK(mode)) {
 138                 type = sha1_object_info(sha1, &size);
 139                 if (type == OBJ_BAD) {
 140                         htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
 141                               name,
 142                               sha1_to_hex(sha1));
 143                         return 0;
 144                 }
 145         }
 146
 147         html("<tr><td class='ls-mode'>");
 148         cgit_print_filemode(mode);
 149         html("</td><td>");
 150         if (S_ISGITLINK(mode)) {
 151                 htmlf("<a class='ls-mod' href='");
 152                 html_attr(fmt(ctx.repo->module_link,
 153                               name,
 154                               sha1_to_hex(sha1)));
 155                 html("'>");
 156                 html_txt(name);
 157                 html("</a>");
 158         } else if (S_ISDIR(mode)) {
 159                 cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
 160                                curr_rev, fullpath);
 161         } else {
 162                 class = strrchr(name, '.');
 163                 if (class != NULL) {
 164                         class = fmt("ls-blob %s", class + 1);
 165                 } else
 166                         class = "ls-blob";
 167                 cgit_tree_link(name, NULL, class, ctx.qry.head,
 168                                curr_rev, fullpath);
 169         }
 170         htmlf("</td><td class='ls-size'>%li</td>", size);
 171
 172         html("<td>");
 173         cgit_log_link("log", NULL, "button", ctx.qry.head, curr_rev,
 174                       fullpath, 0, NULL, NULL, ctx.qry.showmsg);
 175         if (ctx.repo->max_stats)
 176                 cgit_stats_link("stats", NULL, "button", ctx.qry.head,
 177                                 fullpath);
 178         cgit_plain_link("plain", NULL, "button", ctx.qry.head, curr_rev,
 179                         fullpath);
 180         html("</td></tr>\n");
 181         free(name);
 182         return 0;
 183 }
 184
 185 static void ls_head()
 186 {
 187         html("<table summary='tree listing' class='list'>\n");
 188         html("<tr class='nohover'>");
 189         html("<th class='left'>Mode</th>");
 190         html("<th class='left'>Name</th>");
 191         html("<th class='right'>Size</th>");
 192         html("<th/>");
 193         html("</tr>\n");
 194         header = 1;
 195 }
 196
 197 static void ls_tail()
 198 {
 199         if (!header)
 200                 return;
 201         html("</table>\n");
 202         header = 0;
 203 }
 204
 205 static void ls_tree(const unsigned char *sha1, char *path)
 206 {
 207         struct tree *tree;
 208
 209         tree = parse_tree_indirect(sha1);
 210         if (!tree) {
 211                 cgit_print_error(fmt("Not a tree object: %s",
 212                                      sha1_to_hex(sha1)));
 213                 return;
 214         }
 215
 216         ls_head();
 217         read_tree_recursive(tree, "", 0, 1, NULL, ls_item, NULL);
 218         ls_tail();
 219 }
 220
 221
 222 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
 223                      const char *pathname, unsigned mode, int stage,
 224                      void *cbdata)
 225 {
 226         static int state;
 227         static char buffer[PATH_MAX];
 228
 229         if (state == 0) {
 230                 memcpy(buffer, base, baselen);
 231                 strcpy(buffer+baselen, pathname);
 232                 if (strcmp(match_path, buffer))
 233                         return READ_TREE_RECURSIVE;
 234
 235                 if (S_ISDIR(mode)) {
 236                         state = 1;
 237                         ls_head();
 238                         return READ_TREE_RECURSIVE;
 239                 } else {
 240                         print_object(sha1, buffer, pathname);
 241                         return 0;
 242                 }
 243         }
 244         ls_item(sha1, base, baselen, pathname, mode, stage, NULL);
 245         return 0;
 246 }
 247
 248
 249 /*
 250  * Show a tree or a blob
 251  *   rev:  the commit pointing at the root tree object
 252  *   path: path to tree or blob
 253  */
 254 void cgit_print_tree(const char *rev, char *path)
 255 {
 256         unsigned char sha1[20];
 257         struct commit *commit;
 258         const char *paths[] = {path, NULL};
 259
 260         if (!rev)
 261                 rev = ctx.qry.head;
 262
 263         curr_rev = xstrdup(rev);
 264         if (get_sha1(rev, sha1)) {
 265                 cgit_print_error(fmt("Invalid revision name: %s", rev));
 266                 return;
 267         }
 268         commit = lookup_commit_reference(sha1);
 269         if (!commit || parse_commit(commit)) {
 270                 cgit_print_error(fmt("Invalid commit reference: %s", rev));
 271                 return;
 272         }
 273
 274         if (path == NULL) {
 275                 ls_tree(commit->tree->object.sha1, NULL);
 276                 return;
 277         }
 278
 279         match_path = path;
 280         read_tree_recursive(commit->tree, "", 0, 0, paths, walk_tree, NULL);
 281         ls_tail();
 282 }