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         html(" (");
 106         cgit_plain_link("plain", NULL, NULL, ctx.qry.head,
 107                         curr_rev, path);
 108         htmlf(")<br/>blob: %s\n", sha1_to_hex(sha1));
 109
 110         if (buffer_is_binary(buf, size))
 111                 print_binary_buffer(buf, size);
 112         else
 113                 print_text_buffer(basename, buf, size);
 114 }
 115
 116
 117 static int ls_item(const unsigned char *sha1, const char *base, int baselen,
 118                    const char *pathname, unsigned int mode, int stage,
 119                    void *cbdata)
 120 {
 121         char *name;
 122         char *fullpath;
 123         char *class;
 124         enum object_type type;
 125         unsigned long size = 0;
 126
 127         name = xstrdup(pathname);
 128         fullpath = fmt("%s%s%s", ctx.qry.path ? ctx.qry.path : "",
 129                        ctx.qry.path ? "/" : "", name);
 130
 131         if (!S_ISGITLINK(mode)) {
 132                 type = sha1_object_info(sha1, &size);
 133                 if (type == OBJ_BAD) {
 134                         htmlf("<tr><td colspan='3'>Bad object: %s %s</td></tr>",
 135                               name,
 136                               sha1_to_hex(sha1));
 137                         return 0;
 138                 }
 139         }
 140
 141         html("<tr><td class='ls-mode'>");
 142         cgit_print_filemode(mode);
 143         html("</td><td>");
 144         if (S_ISGITLINK(mode)) {
 145                 htmlf("<a class='ls-mod' href='");
 146                 html_attr(fmt(ctx.repo->module_link,
 147                               name,
 148                               sha1_to_hex(sha1)));
 149                 html("'>");
 150                 html_txt(name);
 151                 html("</a>");
 152         } else if (S_ISDIR(mode)) {
 153                 cgit_tree_link(name, NULL, "ls-dir", ctx.qry.head,
 154                                curr_rev, fullpath);
 155         } else {
 156                 class = strrchr(name, '.');
 157                 if (class != NULL) {
 158                         class = fmt("ls-blob %s", class + 1);
 159                 } else
 160                         class = "ls-blob";
 161                 cgit_tree_link(name, NULL, class, ctx.qry.head,
 162                                curr_rev, fullpath);
 163         }
 164         htmlf("</td><td class='ls-size'>%li</td>", size);
 165
 166         html("<td>");
 167         cgit_log_link("log", NULL, "button", ctx.qry.head, curr_rev,
 168                       fullpath, 0, NULL, NULL, ctx.qry.showmsg);
 169         if (ctx.repo->max_stats)
 170                 cgit_stats_link("stats", NULL, "button", ctx.qry.head,
 171                                 fullpath);
 172         html("</td></tr>\n");
 173         free(name);
 174         return 0;
 175 }
 176
 177 static void ls_head()
 178 {
 179         html("<table summary='tree listing' class='list'>\n");
 180         html("<tr class='nohover'>");
 181         html("<th class='left'>Mode</th>");
 182         html("<th class='left'>Name</th>");
 183         html("<th class='right'>Size</th>");
 184         html("<th/>");
 185         html("</tr>\n");
 186         header = 1;
 187 }
 188
 189 static void ls_tail()
 190 {
 191         if (!header)
 192                 return;
 193         html("</table>\n");
 194         header = 0;
 195 }
 196
 197 static void ls_tree(const unsigned char *sha1, char *path)
 198 {
 199         struct tree *tree;
 200
 201         tree = parse_tree_indirect(sha1);
 202         if (!tree) {
 203                 cgit_print_error(fmt("Not a tree object: %s",
 204                                      sha1_to_hex(sha1)));
 205                 return;
 206         }
 207
 208         ls_head();
 209         read_tree_recursive(tree, "", 0, 1, NULL, ls_item, NULL);
 210         ls_tail();
 211 }
 212
 213
 214 static int walk_tree(const unsigned char *sha1, const char *base, int baselen,
 215                      const char *pathname, unsigned mode, int stage,
 216                      void *cbdata)
 217 {
 218         static int state;
 219         static char buffer[PATH_MAX];
 220         char *url;
 221
 222         if (state == 0) {
 223                 memcpy(buffer, base, baselen);
 224                 strcpy(buffer+baselen, pathname);
 225                 url = cgit_pageurl(ctx.qry.repo, "tree",
 226                                    fmt("h=%s&amp;path=%s", curr_rev, buffer));
 227                 html("/");
 228                 cgit_tree_link(xstrdup(pathname), NULL, NULL, ctx.qry.head,
 229                                curr_rev, buffer);
 230
 231                 if (strcmp(match_path, buffer))
 232                         return READ_TREE_RECURSIVE;
 233
 234                 if (S_ISDIR(mode)) {
 235                         state = 1;
 236                         ls_head();
 237                         return READ_TREE_RECURSIVE;
 238                 } else {
 239                         print_object(sha1, buffer, pathname);
 240                         return 0;
 241                 }
 242         }
 243         ls_item(sha1, base, baselen, pathname, mode, stage, NULL);
 244         return 0;
 245 }
 246
 247
 248 /*
 249  * Show a tree or a blob
 250  *   rev:  the commit pointing at the root tree object
 251  *   path: path to tree or blob
 252  */
 253 void cgit_print_tree(const char *rev, char *path)
 254 {
 255         unsigned char sha1[20];
 256         struct commit *commit;
 257         const char *paths[] = {path, NULL};
 258
 259         if (!rev)
 260                 rev = ctx.qry.head;
 261
 262         curr_rev = xstrdup(rev);
 263         if (get_sha1(rev, sha1)) {
 264                 cgit_print_error(fmt("Invalid revision name: %s", rev));
 265                 return;
 266         }
 267         commit = lookup_commit_reference(sha1);
 268         if (!commit || parse_commit(commit)) {
 269                 cgit_print_error(fmt("Invalid commit reference: %s", rev));
 270                 return;
 271         }
 272
 273         html("path: <a href='");
 274         html_attr(cgit_pageurl(ctx.qry.repo, "tree", fmt("h=%s", rev)));
 275         html("'>root</a>");
 276
 277         if (path == NULL) {
 278                 ls_tree(commit->tree->object.sha1, NULL);
 279                 return;
 280         }
 281
 282         match_path = path;
 283         read_tree_recursive(commit->tree, NULL, 0, 0, paths, walk_tree, NULL);
 284         ls_tail();
 285 }