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