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2c445a8 Extensibility basics
jakubvrana authored
1 <?php
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2 class Adminer {
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3 /** @var array operators used in select, null for all operators */
4 var $operators;
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5
6 /** Name in title and navigation
7 * @return string
8 */
9 function name() {
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10 return "Adminer";
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11 }
12
13 /** Connection parameters
14 * @return array ($server, $username, $password)
15 */
16 function credentials() {
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17 return array(SERVER, $_GET["username"], get_session("passwords"));
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18 }
19
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20 /** Get key used for permanent login
21 * @return string cryptic string which gets combined with password
22 */
23 function permanentLogin() {
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24 return password_file();
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25 }
26
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27 /** Identifier of selected database
28 * @return string
29 */
30 function database() {
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31 // should be used everywhere instead of DB
32 return DB;
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33 }
34
35 /** Print login form
36 * @return null
37 */
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38 function loginForm() {
39 global $drivers, $possible_drivers;
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40 ?>
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41 <table cellspacing="0">
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42 <tr><th><?php echo lang('System'); ?><td><?php echo (count($possible_drivers) > 3 ? html_select("driver", $drivers, DRIVER) : "<input type='hidden' name='driver' value='" . key($drivers) . "'>" . reset($drivers)); ?></tr>
43 <tr><th><?php echo lang('Server'); ?><td><input name="server" value="<?php echo h(SERVER); ?>">
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44 <tr><th><?php echo lang('Username'); ?><td><input id="username" name="username" value="<?php echo h($_GET["username"]); ?>">
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45 <tr><th><?php echo lang('Password'); ?><td><input type="password" name="password">
46 </table>
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47 <script type="text/javascript">
48 document.getElementById('username').focus();
49 </script>
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50 <?php
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51 echo "<p><input type='submit' value='" . lang('Login') . "'>\n";
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52 echo checkbox("permanent", 1, $_COOKIE["adminer_permanent"], lang('Permanent login')) . "\n";
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53 }
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54
55 /** Authorize the user
56 * @param string
57 * @param string
58 * @return bool
59 */
60 function login($login, $password) {
61 return true;
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62 }
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63
64 /** Table caption used in navigation and headings
65 * @param array result of SHOW TABLE STATUS
66 * @return string
67 */
68 function tableName($tableStatus) {
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69 return h($tableStatus["Name"]);
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70 }
71
72 /** Field caption used in select and edit
73 * @param array single field returned from fields()
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74 * @param int order of column in select
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75 * @return string
76 */
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77 function fieldName($field, $order = 0) {
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78 return '<span title="' . h($field["full_type"]) . '">' . h($field["field"]) . '</span>';
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79 }
80
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81 /** Print links after select heading
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82 * @param array result of SHOW TABLE STATUS
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83 * @param string new item options, NULL for no new item
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84 * @return null
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85 */
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86 function selectLinks($tableStatus, $set = "") {
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87 echo '<p class="tabs">';
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88 $links = array("select" => lang('Select data'), "table" => lang('Show structure'));
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89 if (eregi("view", $tableStatus["Engine"])) {
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90 $links["view"] = lang('Alter view');
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91 } else {
92 $links["create"] = lang('Alter table');
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93 }
94 if (isset($set)) {
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95 $links["edit"] = lang('New item');
96 }
97 foreach ($links as $key => $val) {
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98 echo " <a href='" . h(ME) . "$key=" . urlencode($tableStatus["Name"]) . ($key == "edit" ? $set : "") . "'>" . bold($val, isset($_GET[$key])) . "</a>";
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99 }
100 echo "\n";
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101 }
102
103 /** Find backward keys for table
104 * @param string
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105 * @param string
106 * @return array $return[$target_table]["keys"][$key_name][$target_column] = $source_column; $return[$target_table]["name"] = $this->tableName($target_table);
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107 */
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108 function backwardKeys($table, $tableName) {
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109 return array();
110 }
111
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112 /** Print backward keys for row
113 * @param array result of $this->backwardKeys()
114 * @param array
115 * @return null
116 */
117 function backwardKeysPrint($backwardKeys, $row) {
118 }
119
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120 /** Query printed in select before execution
121 * @param string query to be executed
122 * @return string
123 */
124 function selectQuery($query) {
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125 global $jush;
126 return "<p><code class='jush-$jush'>" . h(str_replace("\n", " ", $query)) . "</code> <a href='" . h(ME) . "sql=" . urlencode($query) . "'>" . lang('Edit') . "</a>\n";
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127 }
128
129 /** Description of a row in a table
130 * @param string
131 * @return string SQL expression, empty string for no description
132 */
133 function rowDescription($table) {
134 return "";
135 }
136
137 /** Get descriptions of selected data
138 * @param array all data to print
139 * @param array
140 * @return array
141 */
142 function rowDescriptions($rows, $foreignKeys) {
143 return $rows;
144 }
145
146 /** Value printed in select table
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147 * @param string HTML-escaped value to print
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148 * @param string link to foreign key
149 * @param array single field returned from fields()
150 * @return string
151 */
152 function selectVal($val, $link, $field) {
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153 $return = ($val != "<i>NULL</i>" && $field["type"] == "char" ? "<code>$val</code>" : $val);
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154 if (ereg('binary|blob|bytea', $field["type"]) && !is_utf8($val)) {
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155 $return = lang('%d byte(s)', strlen($val));
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156 }
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157 return ($link ? "<a href='$link'>$return</a>" : $return);
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158 }
159
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160 /** Value conversion used in select and edit
161 * @param string
162 * @param array single field returned from fields()
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163 * @return string
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164 */
165 function editVal($val, $field) {
166 return $val;
167 }
168
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169 /** Print columns box in select
170 * @param array result of selectColumnsProcess()
171 * @param array selectable columns
172 * @return null
173 */
174 function selectColumnsPrint($select, $columns) {
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175 global $functions, $grouping;
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176 print_fieldset("select", lang('Select'), $select);
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177 $i = 0;
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178 $fun_group = array(lang('Functions') => $functions, lang('Aggregation') => $grouping);
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179 foreach ($select as $key => $val) {
180 $val = $_GET["columns"][$key];
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181 echo "<div>" . html_select("columns[$i][fun]", array(-1 => "") + $fun_group, $val["fun"]);
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182 echo "(<select name='columns[$i][col]'><option>" . optionlist($columns, $val["col"], true) . "</select>)</div>\n";
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183 $i++;
184 }
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185 echo "<div>" . html_select("columns[$i][fun]", array(-1 => "") + $fun_group, "", "this.nextSibling.nextSibling.onchange();");
186 echo "(<select name='columns[$i][col]' onchange='selectAddRow(this);'><option>" . optionlist($columns, null, true) . "</select>)</div>\n";
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187 echo "</div></fieldset>\n";
188 }
189
190 /** Print search box in select
191 * @param array result of selectSearchProcess()
192 * @param array selectable columns
193 * @param array
194 * @return null
195 */
196 function selectSearchPrint($where, $columns, $indexes) {
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197 print_fieldset("search", lang('Search'), $where);
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198 foreach ($indexes as $i => $index) {
199 if ($index["type"] == "FULLTEXT") {
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200 echo "(<i>" . implode("</i>, <i>", array_map('h', $index["columns"])) . "</i>) AGAINST";
201 echo " <input name='fulltext[$i]' value='" . h($_GET["fulltext"][$i]) . "'>";
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202 echo checkbox("boolean[$i]", 1, isset($_GET["boolean"][$i]), "BOOL");
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203 echo "<br>\n";
204 }
205 }
206 $i = 0;
207 foreach ((array) $_GET["where"] as $val) {
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208 if ("$val[col]$val[val]" != "" && in_array($val["op"], $this->operators)) {
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209 echo "<div><select name='where[$i][col]'><option value=''>(" . lang('anywhere') . ")" . optionlist($columns, $val["col"], true) . "</select>";
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210 echo html_select("where[$i][op]", $this->operators, $val["op"]);
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211 echo "<input name='where[$i][val]' value='" . h($val["val"]) . "'></div>\n";
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212 $i++;
213 }
214 }
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215 echo "<div><select name='where[$i][col]' onchange='selectAddRow(this);'><option value=''>(" . lang('anywhere') . ")" . optionlist($columns, null, true) . "</select>";
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216 echo html_select("where[$i][op]", $this->operators);
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217 echo "<input name='where[$i][val]'></div>\n";
218 echo "</div></fieldset>\n";
219 }
220
221 /** Print order box in select
222 * @param array result of selectOrderProcess()
223 * @param array selectable columns
224 * @param array
225 * @return null
226 */
227 function selectOrderPrint($order, $columns, $indexes) {
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228 print_fieldset("sort", lang('Sort'), $order);
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229 $i = 0;
230 foreach ((array) $_GET["order"] as $key => $val) {
231 if (isset($columns[$val])) {
232 echo "<div><select name='order[$i]'><option>" . optionlist($columns, $val, true) . "</select>";
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233 echo checkbox("desc[$i]", 1, isset($_GET["desc"][$key]), lang('descending')) . "</div>\n";
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234 $i++;
235 }
236 }
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237 echo "<div><select name='order[$i]' onchange='selectAddRow(this);'><option>" . optionlist($columns, null, true) . "</select>";
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238 echo checkbox("desc[$i]", 1, 0, lang('descending')) . "</div>\n";
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239 echo "</div></fieldset>\n";
240 }
241
242 /** Print limit box in select
243 * @param string result of selectLimitProcess()
244 * @return null
245 */
246 function selectLimitPrint($limit) {
247 echo "<fieldset><legend>" . lang('Limit') . "</legend><div>"; // <div> for easy styling
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248 echo "<input name='limit' size='3' value='" . h($limit) . "'>";
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249 echo "</div></fieldset>\n";
250 }
251
252 /** Print text length box in select
253 * @param string result of selectLengthProcess()
254 * @return null
255 */
256 function selectLengthPrint($text_length) {
257 if (isset($text_length)) {
258 echo "<fieldset><legend>" . lang('Text length') . "</legend><div>";
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259 echo '<input name="text_length" size="3" value="' . h($text_length) . '">';
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260 echo "</div></fieldset>\n";
261 }
262 }
263
264 /** Print action box in select
265 * @return null
266 */
267 function selectActionPrint() {
268 echo "<fieldset><legend>" . lang('Action') . "</legend><div>";
269 echo "<input type='submit' value='" . lang('Select') . "'>";
270 echo "</div></fieldset>\n";
271 }
272
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273 /** Print extra text in the end of a select form
274 * @param array fields holding e-mails
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275 * @param array selectable columns
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276 * @return null
277 */
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278 function selectEmailPrint($emailFields, $columns) {
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279 }
280
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281 /** Process columns box in select
282 * @param array selectable columns
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283 * @param array
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284 * @return array (array(select_expressions), array(group_expressions))
285 */
286 function selectColumnsProcess($columns, $indexes) {
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287 global $functions, $grouping;
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288 $select = array(); // select expressions, empty for *
289 $group = array(); // expressions without aggregation - will be used for GROUP BY if an aggregation function is used
290 foreach ((array) $_GET["columns"] as $key => $val) {
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291 if ($val["fun"] == "count" || (isset($columns[$val["col"]]) && (!$val["fun"] || in_array($val["fun"], $functions) || in_array($val["fun"], $grouping)))) {
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292 $select[$key] = apply_sql_function($val["fun"], (isset($columns[$val["col"]]) ? idf_escape($val["col"]) : "*"));
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293 if (!in_array($val["fun"], $grouping)) {
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294 $group[] = $select[$key];
295 }
296 }
297 }
298 return array($select, $group);
299 }
300
301 /** Process search box in select
302 * @param array
303 * @param array
304 * @return array expressions to join by AND
305 */
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306 function selectSearchProcess($fields, $indexes) {
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307 global $connection;
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308 $return = array();
309 foreach ($indexes as $i => $index) {
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310 if ($index["type"] == "FULLTEXT" && $_GET["fulltext"][$i] != "") {
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311 $return[] = "MATCH (" . implode(", ", array_map('idf_escape', $index["columns"])) . ") AGAINST (" . $connection->quote($_GET["fulltext"][$i]) . (isset($_GET["boolean"][$i]) ? " IN BOOLEAN MODE" : "") . ")";
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312 }
313 }
314 foreach ((array) $_GET["where"] as $val) {
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315 if ("$val[col]$val[val]" != "" && in_array($val["op"], $this->operators)) {
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316 $cond = " $val[op]";
317 if (ereg('IN$', $val["op"])) {
318 $in = process_length($val["val"]);
319 $cond .= " (" . ($in != "" ? $in : "NULL") . ")";
320 } elseif ($val["op"] == "LIKE %%") {
321 $cond = " LIKE " . $this->processInput($fields[$val["col"]], "%$val[val]%");
322 } elseif (!ereg('NULL$', $val["op"])) {
323 $cond .= " " . $this->processInput($fields[$val["col"]], $val["val"]);
324 }
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325 if ($val["col"] != "") {
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326 $return[] = idf_escape($val["col"]) . $cond;
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327 } else {
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328 // find anywhere
329 $cols = array();
330 foreach ($fields as $name => $field) {
331 if (is_numeric($val["val"]) || !ereg('int|float|double|decimal', $field["type"])) {
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332 $name = idf_escape($name);
333 $cols[] = (ereg('char|text|enum|set', $field["type"]) && !ereg('^utf8', $field["collation"]) ? "CONVERT($name USING utf8)" : $name);
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334 }
335 }
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336 $return[] = ($cols ? "(" . implode("$cond OR ", $cols) . "$cond)" : "0");
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337 }
338 }
339 }
340 return $return;
341 }
342
343 /** Process order box in select
344 * @param array
345 * @param array
346 * @return array expressions to join by comma
347 */
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348 function selectOrderProcess($fields, $indexes) {
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349 $return = array();
350 foreach ((array) $_GET["order"] as $key => $val) {
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351 if (isset($fields[$val]) || preg_match('~^((COUNT\\(DISTINCT |[A-Z0-9_]+\\()(`(?:[^`]|``)+`|"(?:[^"]|"")+")\\)|COUNT\\(\\*\\))$~', $val)) { //! MS SQL uses []
352 $return[] = (isset($fields[$val]) ? idf_escape($val) : $val) . (isset($_GET["desc"][$key]) ? " DESC" : "");
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353 }
354 }
355 return $return;
356 }
357
358 /** Process limit box in select
359 * @return string expression to use in LIMIT, will be escaped
360 */
361 function selectLimitProcess() {
362 return (isset($_GET["limit"]) ? $_GET["limit"] : "30");
363 }
364
365 /** Process length box in select
366 * @return string number of characters to shorten texts, will be escaped
367 */
368 function selectLengthProcess() {
369 return (isset($_GET["text_length"]) ? $_GET["text_length"] : "100");
370 }
371
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372 /** Process extras in select form
373 * @param array AND conditions
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374 * @param array
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375 * @return bool true if processed, false to process other parts of form
376 */
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377 function selectEmailProcess($where, $foreignKeys) {
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378 return false;
379 }
380
381 /** Query printed after execution in the message
382 * @param string executed query
383 * @return string
384 */
385 function messageQuery($query) {
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386 global $jush;
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387 restart_session();
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388 $id = "sql-" . count($_SESSION["messages"]);
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389 $history = &get_session("history");
390 $history[DB][] = (strlen($query) > 1e6 ? ereg_replace('[\x80-\xFF]+$', '', substr($query, 0, 1e6)) . "\n..." : $query); // [\x80-\xFF] - valid UTF-8, \n - can end by one-line comment
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391 return " <a href='#$id' onclick=\"return !toggle('$id');\">" . lang('SQL command') . "</a><div id='$id' class='hidden'><pre class='jush-$jush'>" . shorten_utf8($query, 1000) . '</pre><p><a href="' . h(ME . 'sql=&history=' . (count($history[DB]) - 1)) . '">' . lang('Edit') . '</a></div>';
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392 }
393
394 /** Functions displayed in edit form
395 * @param array single field from fields()
396 * @return array
397 */
398 function editFunctions($field) {
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399 global $edit_functions;
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400 $return = ($field["null"] ? "NULL/" : "");
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401 foreach ($edit_functions as $key => $functions) {
402 if (!$key || (!isset($_GET["call"]) && (isset($_GET["select"]) || where($_GET)))) { // relative functions
403 foreach ($functions as $pattern => $val) {
404 if (!$pattern || ereg($pattern, $field["type"])) {
405 $return .= "/$val";
406 }
407 }
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408 }
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409 }
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410 return explode("/", $return);
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411 }
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412
413 /** Get options to display edit field
414 * @param string table name
415 * @param array single field from fields()
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416 * @param string attributes to use inside the tag
417 * @param string
418 * @return string custom input field or empty string for default
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419 */
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420 function editInput($table, $field, $attrs, $value) {
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421 if ($field["type"] == "enum") {
422 return ($field["null"] ? "<label><input type='radio'$attrs value=''" . (isset($value) || isset($_GET["select"]) ? "" : " checked") . "><em>NULL</em></label> " : "")
423 . "<input type='radio'$attrs value='0'" . ($value === 0 ? " checked" : "") . ">"
424 ;
425 }
426 return "";
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427 }
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428
429 /** Process sent input
430 * @param array single field from fields()
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431 * @param string
432 * @param string
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433 * @return string expression to use in a query
434 */
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435 function processInput($field, $value, $function = "") {
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436 global $connection;
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437 $name = $field["field"];
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438 $return = $connection->quote($value);
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439 if (ereg('^(now|getdate|uuid)$', $function)) {
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440 $return = "$function()";
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441 } elseif (ereg('^([+-]|\\|\\|)$', $function)) {
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442 $return = idf_escape($name) . " $function $return";
443 } elseif (ereg('^[+-] interval$', $function)) {
444 $return = idf_escape($name) . " $function " . (preg_match("~^([0-9]+|'[0-9.: -]') [A-Z_]+$~i", $value) ? $value : $return);
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445 } elseif (ereg('^(addtime|subtime|concat)$', $function)) {
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446 $return = "$function(" . idf_escape($name) . ", $return)";
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447 } elseif (ereg('^(md5|sha1|password|encrypt)$', $function)) {
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448 $return = "$function($return)";
449 }
450 return $return;
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451 }
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452
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453 /** Returns export output options
454 * @param bool generate select (otherwise radio)
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455 * @param string
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456 * @return string
457 */
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458 function dumpOutput($select, $value = "") {
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459 $return = array('text' => lang('open'), 'file' => lang('save'));
460 if (function_exists('gzencode')) {
461 $return['gz'] = 'gzip';
462 }
463 if (function_exists('bzcompress')) {
464 $return['bz2'] = 'bzip2';
465 }
466 // ZipArchive requires temporary file, ZIP can be created by gzcompress - see PEAR File_Archive
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467 return html_select("output", $return, $value, $select);
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468 }
469
470 /** Returns export format options
471 * @param bool generate select (otherwise radio)
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472 * @param string
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473 * @return string
474 */
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475 function dumpFormat($select, $value = "") {
476 return html_select("format", array('sql' => 'SQL', 'csv' => 'CSV,', 'csv;' => 'CSV;'), $value, $select);
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477 }
478
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479 /** Prints navigation after Adminer title
480 * @param string can be "auth" if there is no database connection or "db" if there is no database selected
481 * @return null
482 */
483 function navigation($missing) {
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484 global $VERSION, $connection, $token, $jush, $drivers;
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485 ?>
486 <h1>
487 <a href="http://www.adminer.org/" id="h1"><?php echo $this->name(); ?></a>
488 <span class="version"><?php echo $VERSION; ?></span>
489 <a href="http://www.adminer.org/#download" id="version"><?php echo (version_compare($VERSION, $_COOKIE["adminer_version"]) < 0 ? h($_COOKIE["adminer_version"]) : ""); ?></a>
490 </h1>
491 <?php
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492 if ($missing == "auth") {
493 $first = true;
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494 foreach ((array) $_SESSION["passwords"] as $driver => $servers) {
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495 foreach ($servers as $server => $usernames) {
496 foreach ($usernames as $username => $password) {
497 if (isset($password)) {
498 if ($first) {
499 echo "<p>\n";
500 $first = false;
501 }
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502 echo "<a href='" . h(auth_url($driver, $server, $username)) . "'>($drivers[$driver]) " . h($username . ($server != "" ? "@$server" : "")) . "</a><br>\n";
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503 }
504 }
505 }
506 }
507 } else {
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508 $databases = get_databases();
509 ?>
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510 <form action="" method="post">
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511 <p class="logout">
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512 <a href="<?php echo h(ME); ?>sql="><?php echo bold(lang('SQL command'), isset($_GET["sql"])); ?></a>
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513 <a href="<?php echo h(ME); ?>dump=<?php echo urlencode(isset($_GET["table"]) ? $_GET["table"] : $_GET["select"]); ?>"><?php echo bold(lang('Dump'), isset($_GET["dump"])); ?></a>
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514 <input type="hidden" name="token" value="<?php echo $token; ?>">
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515 <input type="submit" name="logout" value="<?php echo lang('Logout'); ?>">
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516 </p>
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517 </form>
518 <form action="">
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519 <p>
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520 <?php hidden_fields_get(); ?>
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521 <?php echo ($databases ? html_select("db", array("" => "(" . lang('database') . ")") + $databases, DB, "this.form.submit();") : '<input name="db" value="' . h(DB) . '">'); ?>
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522 <input type="submit" value="<?php echo lang('Use'); ?>"<?php echo ($databases ? " class='hidden'" : ""); ?>>
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523 <?php
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524 if ($missing != "db" && DB != "" && $connection->select_db(DB)) {
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525 if (support("scheme")) {
526 echo "<br>" . html_select("ns", array("" => "(" . lang('schema') . ")") + schemas(), $_GET["ns"], "this.form.submit();");
527 if ($_GET["ns"] != "") {
528 set_schema($_GET["ns"]);
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529 }
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530 }
531 if ($_GET["ns"] !== "") {
532 $tables = tables_list();
533 if (!$tables) {
534 echo "<p class='message'>" . lang('No tables.') . "\n";
535 } else {
536 $this->tablesPrint($tables);
537 $links = array();
538 foreach ($tables as $table => $type) {
539 $links[] = preg_quote($table, '/');
540 }
541 echo "<script type='text/javascript'>\n";
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542 echo "var jushLinks = { $jush: [ '" . addcslashes(h(ME), "\\'/") . "table=\$&', /\\b(" . implode("|", $links) . ")\\b/g ] };\n";
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543 foreach (array("bac", "bra", "sqlite_quo", "mssql_bra") as $val) {
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544 echo "jushLinks.$val = jushLinks.$jush;\n";
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545 }
546 echo "</script>\n";
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547 }
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548 echo '<p><a href="' . h(ME) . 'create=">' . bold(lang('Create new table'), $_GET["create"] === "") . "</a>\n";
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549 }
550 }
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551 echo (isset($_GET["sql"]) ? '<input type="hidden" name="sql" value="">'
552 : (isset($_GET["schema"]) ? '<input type="hidden" name="schema" value="">'
553 : (isset($_GET["dump"]) ? '<input type="hidden" name="dump" value="">'
554 : "")));
555 echo "</form>\n";
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556 }
557 }
558
559 /** Prints table list in menu
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560 * @param array
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561 * @return null
562 */
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563 function tablesPrint($tables) {
564 echo "<p id='tables'>\n";
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565 foreach ($tables as $table => $type) {
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566 echo '<a href="' . h(ME) . 'select=' . urlencode($table) . '">' . bold(lang('select'), $_GET["select"] == $table) . '</a> ';
567 echo '<a href="' . h(ME) . 'table=' . urlencode($table) . '">' . bold($this->tableName(array("Name" => $table)), $_GET["table"] == $table) . "</a><br>\n"; //! Adminer::tableName may work with full table status
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568 }
569 }
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570
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571 }
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572
573 $adminer = (function_exists('adminer_object') ? adminer_object() : new Adminer);
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574 if (!isset($adminer->operators)) {
575 $adminer->operators = $operators;
576 }
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