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