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