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1 | <?php |
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2 | |
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3 | /** |
4 | * help.php |
5 | * |
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6 | * Displays help for the user |
7 | * |
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8 | * @copyright © 1999-2007 The SquirrelMail Project Team |
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9 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License |
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10 | * @version $Id$ |
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11 | * @package squirrelmail |
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12 | */ |
13 | |
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14 | /** |
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15 | * Include the SquirrelMail initialization file. |
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16 | */ |
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17 | require('../include/init.php'); |
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18 | |
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19 | displayPageHeader($color); |
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20 | |
21 | $helpdir[0] = 'basic.hlp'; |
22 | $helpdir[1] = 'main_folder.hlp'; |
23 | $helpdir[2] = 'read_mail.hlp'; |
24 | $helpdir[3] = 'compose.hlp'; |
25 | $helpdir[4] = 'addresses.hlp'; |
26 | $helpdir[5] = 'folders.hlp'; |
27 | $helpdir[6] = 'options.hlp'; |
28 | $helpdir[7] = 'search.hlp'; |
29 | $helpdir[8] = 'FAQ.hlp'; |
30 | |
31 | /****************[ HELP FUNCTIONS ]********************/ |
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32 | |
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33 | /** |
34 | * parses through and gets the information from the different documents. |
35 | * this returns one section at a time. You must keep track of the position |
36 | * so that it knows where to start to look for the next section. |
37 | */ |
38 | |
39 | function get_info($doc, $pos) { |
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40 | $ary = array(0,0,0); |
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41 | |
42 | $cntdoc = count($doc); |
43 | |
44 | for ($n=$pos; $n < $cntdoc; $n++) { |
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45 | if (trim(strtolower($doc[$n])) == '<chapter>' |
46 | || trim(strtolower($doc[$n])) == '<section>') { |
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47 | for ($n++; $n < $cntdoc |
48 | && (trim(strtolower($doc[$n])) != '</section>') |
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49 | && (trim(strtolower($doc[$n])) != '</chapter>'); $n++) { |
50 | if (trim(strtolower($doc[$n])) == '<title>') { |
51 | $n++; |
52 | $ary[0] = trim($doc[$n]); |
53 | } |
54 | if (trim(strtolower($doc[$n])) == '<description>') { |
55 | $ary[1] = ''; |
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56 | for ($n++;$n < $cntdoc |
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57 | && (trim(strtolower($doc[$n])) != '</description>'); |
58 | $n++) { |
59 | $ary[1] .= $doc[$n]; |
60 | } |
61 | } |
62 | if (trim(strtolower($doc[$n])) == '<summary>') { |
63 | $ary[2] = ''; |
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64 | for ($n++; $n < $cntdoc |
65 | && (trim(strtolower($doc[$n])) != '</summary>'); |
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66 | $n++) { |
67 | $ary[2] .= $doc[$n]; |
68 | } |
69 | } |
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70 | } |
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71 | if (isset($ary)) { |
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72 | $ary[3] = $n; |
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73 | } else { |
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74 | $ary[0] = _("ERROR: Help files are not in the right format!"); |
75 | $ary[1] = $ary[0]; |
76 | $ary[2] = $ary[0]; |
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77 | } |
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78 | return( $ary ); |
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79 | } else if (!trim(strtolower($doc[$n]))) { |
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80 | $ary[0] = ''; |
81 | $ary[1] = ''; |
82 | $ary[2] = ''; |
83 | $ary[3] = $n; |
84 | } |
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85 | } |
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86 | $ary[0] = _("ERROR: Help files are not in the right format!"); |
87 | $ary[1] = $ary[0]; |
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88 | $ary[2] = $ary[0]; |
89 | $ary[3] = $n; |
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90 | return( $ary ); |
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91 | } |
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92 | |
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93 | /**************[ END HELP FUNCTIONS ]******************/ |
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94 | |
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95 | do_hook('help_top', $null); |
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96 | |
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97 | if (!isset($squirrelmail_language)) { |
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98 | $squirrelmail_language = 'en_US'; |
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99 | } |
100 | |
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101 | if (file_exists("../help/$squirrelmail_language")) { |
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102 | $user_language = $squirrelmail_language; |
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103 | } else if (file_exists('../help/en_US')) { |
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104 | error_box(_("Help is not available in the selected language. It will be displayed in English instead.")); |
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105 | echo '<br />'; |
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106 | $user_language = 'en_US'; |
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107 | } else { |
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108 | error_box( _("Help is not available. Please contact your system administrator for assistance.")); |
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109 | echo '</td></tr></table>'; |
110 | // Display footer (closes HTML tags) and stop script execution. |
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111 | $oTemplate->display('footer.tpl'); |
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112 | exit; |
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113 | } |
114 | |
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115 | |
116 | /* take the chapternumber from the GET-vars, |
117 | * else see if we can get a relevant chapter from the referer */ |
118 | $chapter = 0; |
119 | |
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120 | if ( sqgetGlobalVar('chapter', $temp, SQ_GET) ) { |
121 | $chapter = (int) $temp; |
122 | } elseif ( sqgetGlobalVar('HTTP_REFERER', $temp, SQ_SERVER) ) { |
123 | $ref = strtolower($temp); |
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124 | |
125 | $contexts = array ( 'src/compose' => 4, 'src/addr' => 5, |
126 | 'src/folders' => 6, 'src/options' => 7, 'src/right_main' => 2, |
127 | 'src/read_body' => 3, 'src/search' => 8 ); |
128 | |
129 | foreach($contexts as $path => $chap) { |
130 | if(strpos($ref, $path)) { |
131 | $chapter = $chap; |
132 | break; |
133 | } |
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134 | } |
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135 | } |
136 | |
137 | if ( $chapter == 0 || !isset( $helpdir[$chapter-1] ) ) { |
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138 | // Initialise the needed variables. |
139 | $toc = array(); |
140 | |
141 | // Get the chapter numbers, title and decriptions. |
142 | for ($i=0, $cnt = count($helpdir); $i < $cnt; $i++) { |
143 | if (file_exists("../help/$user_language/$helpdir[$i]")) { |
144 | // First try the selected language. |
145 | $doc = file("../help/$user_language/$helpdir[$i]"); |
146 | $help_info = get_info($doc, 0); |
147 | $toc[] = array($i+1, $help_info[0], $help_info[2]); |
148 | } elseif (file_exists("../help/en_US/$helpdir[$i]")) { |
149 | // If the selected language can't be found, try English. |
150 | $doc = file("../help/en_US/$helpdir[$i]"); |
151 | $help_info = get_info($doc, 0); |
152 | $toc[] = array($i+1, $help_info[0], |
153 | _("This chapter is not available in the selected language. It will be displayed in English instead.") . |
154 | '<br />' . $help_info[2]); |
155 | } else { |
156 | // If English can't be found, the chapter went MIA. |
157 | $toc[] = array($i+1, _("This chapter is missing"), |
158 | sprintf(_("For some reason, chapter %s is not available."), $i+1)); |
159 | } |
160 | } |
161 | |
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162 | // Provide hook for external help scripts. |
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163 | do_hook('help_chapter', $null); |
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164 | |
165 | $new_toc = array(); |
166 | foreach ($toc as $ch) { |
167 | $a = array(); |
168 | $a['Chapter'] = $ch[0]; |
169 | $a['Title'] = $ch[1]; |
170 | $a['Summary'] = trim($ch[2]); |
171 | $new_toc[] = $a; |
172 | } |
173 | |
174 | $oTemplate->assign('toc', $new_toc); |
175 | |
176 | $oTemplate->display('help_toc.tpl'); |
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177 | } else { |
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178 | // Initialise the needed variables. |
179 | $display_chapter = TRUE; |
180 | |
181 | // Get the chapter. |
182 | if (file_exists("../help/$user_language/" . $helpdir[$chapter-1])) { |
183 | // First try the selected language. |
184 | $doc = file("../help/$user_language/" . $helpdir[$chapter-1]); |
185 | } elseif (file_exists("../help/en_US/" . $helpdir[$chapter-1])) { |
186 | // If the selected language can't be found, try English. |
187 | $doc = file("../help/en_US/" . $helpdir[$chapter-1]); |
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188 | error_box(_("This chapter is not available in the selected language. It will be displayed in English instead.")); |
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189 | echo '<br />'; |
190 | } else { |
191 | // If English can't be found, the chapter went MIA. |
192 | $display_chapter = FALSE; |
193 | } |
194 | |
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195 | // Write the chapter. |
196 | if ($display_chapter) { |
197 | // If there is a valid chapter, display it. |
198 | $help_info = get_info($doc, 0); |
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199 | $ch = array(); |
200 | $ch['Chapter'] = $chapter; |
201 | $ch['Title'] = $help_info[0]; |
202 | $ch['Summary'] = isset($help_info[1]) && $help_info[1] ? trim($help_info[1]) : $help_info[2]; |
203 | $ch['Sections'] = array(); |
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204 | $section = 0; |
205 | for ($n = $help_info[3], $cnt = count($doc); $n < $cnt; $n++) { |
206 | $section++; |
207 | $help_info = get_info($doc, $n); |
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208 | $n = $help_info[3]; |
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209 | |
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210 | $a = array(); |
211 | $a['SectionNumber'] = $section; |
212 | $a['SectionTitle'] = $help_info[0]; |
213 | $a['SectionText'] = isset($help_info[1]) ? trim($help_info[1]) : '';; |
214 | |
215 | $ch['Sections'][] = $a; |
216 | } |
217 | |
218 | $oTemplate->assign('chapter_number', $chapter); |
219 | $oTemplate->assign('chapter_count', count($helpdir)); |
220 | $oTemplate->assign('chapter_title', $ch['Title']); |
221 | $oTemplate->assign('chapter_summary', $ch['Summary']); |
222 | $oTemplate->assign('sections', $ch['Sections']); |
223 | $oTemplate->assign('error_msg', NULL); |
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224 | } else { |
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225 | // If the help file went MIA, trigger an error message. |
226 | $oTemplate->assign('chapter_number', $chapter); |
227 | $oTemplate->assign('chapter_count', count($helpdir)); |
228 | $oTemplate->assign('chapter_title', ''); |
229 | $oTemplate->assign('chapter_summary', ''); |
230 | $oTemplate->assign('sections', array()); |
231 | $oTemplate->assign('error_msg', sprintf(_("For some reason, chapter %s is not available."), $chapter)); |
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232 | } |
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233 | |
234 | $oTemplate->display('help_chapter.tpl'); |
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235 | } |
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236 | |
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237 | do_hook('help_bottom', $null); |
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238 | |
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239 | $oTemplate->display('footer.tpl'); |
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240 | ?> |