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