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667bfec Decomposition
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1 <?php
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2 /** Get database connection
3 * @return Min_DB
4 */
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5 function connection() {
6 // can be used in customization, $connection is minified
7 global $connection;
8 return $connection;
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9 }
10
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11 /** Unescape database identifier
12 * @param string text inside ``
13 * @return string
14 */
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15 function idf_unescape($idf) {
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16 $last = substr($idf, -1);
17 return str_replace($last . $last, $last, substr($idf, 1, -1));
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18 }
19
5e01a62 Prepare for SQLite
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20 /** Escape string to use inside ''
21 * @param string
22 * @return string
23 */
24 function escape_string($val) {
25 global $connection;
26 return substr($connection->quote($val), 1, -1);
27 }
28
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29 /** Escape or unescape string to use inside form []
30 * @param string
31 * @param bool
32 * @return string
33 */
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34 function bracket_escape($idf, $back = false) {
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35 // escape brackets inside name="x[]"
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36 static $trans = array(':' => ':1', ']' => ':2', '[' => ':3');
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37 return strtr($idf, ($back ? array_flip($trans) : $trans));
38 }
39
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40 /** Escape for HTML
41 * @param string
42 * @return string
43 */
689699a Shortcut for htmlspecialchars
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44 function h($string) {
45 return htmlspecialchars($string, ENT_QUOTES);
46 }
47
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48 /** Escape for TD
49 * @param string
50 * @return string
51 */
c196985 Function nbsp
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52 function nbsp($string) {
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53 return (trim($string) != "" ? h($string) : "&nbsp;");
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54 }
55
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56 /** Convert \n to <br>
57 * @param string
58 * @return string
59 */
60 function nl_br($string) {
61 return str_replace("\n", "<br>", $string); // nl2br() uses XHTML before PHP 5.3
62 }
63
6b30cfa Separate checkbox
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64 /** Generate HTML checkbox
65 * @param string
66 * @param string
67 * @param bool
68 * @param string
69 * @param string
70 * @return string
71 */
72 function checkbox($name, $value, $checked, $label = "", $onclick = "") {
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73 static $id = 0;
74 $id++;
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75 $return = "<input type='checkbox'" . ($name ? " name='$name' value='" . h($value) . "'" : "") . ($checked ? " checked" : "") . ($onclick ? " onclick=\"$onclick\"" : "") . " id='checkbox-$id'>";
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76 return ($label != "" ? "<label for='checkbox-$id'>$return" . h($label) . "</label>" : $return);
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77 }
78
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79 /** Generate list of HTML options
80 * @param array array of strings or arrays (creates optgroup)
81 * @param mixed
82 * @param bool always use array keys for value="", otherwise only string keys are used
83 * @return string
84 */
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85 function optionlist($options, $selected = null, $use_keys = false) {
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86 $return = "";
87 foreach ($options as $k => $v) {
88 if (is_array($v)) {
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89 $return .= '<optgroup label="' . h($k) . '">';
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90 }
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91 foreach ((is_array($v) ? $v : array($k => $v)) as $key => $val) {
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92 $return .= '<option' . ($use_keys || is_string($key) ? ' value="' . h($key) . '"' : '') . (($use_keys || is_string($key) ? (string) $key : $val) === $selected ? ' selected' : '') . '>' . h($val);
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93 }
94 if (is_array($v)) {
95 $return .= '</optgroup>';
96 }
97 }
98 return $return;
99 }
100
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101 /** Generate HTML radio list
102 * @param string
103 * @param array
104 * @param string
105 * @param string true for no onchange, false for radio
106 * @return string
107 */
108 function html_select($name, $options, $value = "", $onchange = true) {
109 if ($onchange) {
110 return "<select name='" . h($name) . "'" . (is_string($onchange) ? " onchange=\"$onchange\"" : "") . ">" . optionlist($options, $value) . "</select>";
111 }
112 $return = "";
113 foreach ($options as $key => $val) {
114 $return .= "<label><input type='radio' name='" . h($name) . "' value='" . h($key) . "'" . ($key == $value ? " checked" : "") . ">" . h($val) . "</label>";
115 }
116 return $return;
117 }
118
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119 /** Print SQL <textarea> tag
120 * @param string
121 * @param int
122 * @param int
123 * @param string
124 * @return null
125 */
126 function textarea($name, $value, $rows = 10, $cols = 80) {
127 echo "<textarea name='$name' rows='$rows' cols='$cols' style='width: 98%;' spellcheck='false'>" . h($value) . "</textarea>"; // spellcheck - not valid before HTML5
128 }
129
130
131
132 // other functions
133
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134 /** Get INI boolean value
135 * @param string
136 * @return bool
137 */
138 function ini_bool($ini) {
139 $val = ini_get($ini);
140 return (eregi('^(on|true|yes)$', $val) || (int) $val); // boolean values set by php_value are strings
141 }
142
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143 /** Get list of values from database
144 * @param string
145 * @param mixed
146 * @return array
147 */
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148 function get_vals($query, $column = 0) {
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149 global $connection;
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150 $return = array();
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151 $result = $connection->query($query);
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152 if (is_object($result)) {
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153 while ($row = $result->fetch_row()) {
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154 $return[] = $row[$column];
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155 }
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156 }
157 return $return;
158 }
159
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160 /** Get keys from first column and values from second
161 * @param string
162 * @param Min_DB
163 * @return array
164 */
165 function get_key_vals($query, $connection2 = null) {
166 global $connection;
167 if (!is_object($connection2)) {
168 $connection2 = $connection;
169 }
170 $return = array();
171 $result = $connection2->query($query);
172 while ($row = $result->fetch_row()) {
173 $return[$row[0]] = $row[1];
174 }
175 return $return;
176 }
177
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178 /** Find unique identifier of a row
179 * @param array
180 * @param array result of indexes()
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181 * @return array
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182 */
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183 function unique_array($row, $indexes) {
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184 foreach ($indexes as $index) {
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185 if (ereg("PRIMARY|UNIQUE", $index["type"])) {
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186 $return = array();
187 foreach ($index["columns"] as $key) {
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188 if (!isset($row[$key])) { // NULL is ambiguous
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189 continue 2;
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190 }
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191 $return[$key] = $row[$key];
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192 }
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193 return $return;
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194 }
195 }
196 $return = array();
197 foreach ($row as $key => $val) {
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198 if (!preg_match('~^(COUNT\\((\\*|(DISTINCT )?`(?:[^`]|``)+`)\\)|(AVG|GROUP_CONCAT|MAX|MIN|SUM)\\(`(?:[^`]|``)+`\\))$~', $key)) { //! columns looking like functions
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199 $return[$key] = $val;
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200 }
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201 }
202 return $return;
203 }
204
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205 /** Create SQL condition from parsed query string
206 * @param array parsed query string
207 * @return string
208 */
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209 function where($where) {
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210 $return = array();
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211 foreach ((array) $where["where"] as $key => $val) {
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212 $return[] = idf_escape(bracket_escape($key, 1)) // 1 - back
213 . (ereg('\\.', $val) ? " LIKE " . exact_value(addcslashes($val, "%_")) : " = " . exact_value($val)) // LIKE because of floats, but slow with ints
214 ; //! enum and set
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215 }
216 foreach ((array) $where["null"] as $key) {
217 $return[] = idf_escape($key) . " IS NULL";
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218 }
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219 return implode(" AND ", $return);
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220 }
221
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222 /** Create SQL condition from query string
223 * @param string
224 * @return string
225 */
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226 function where_check($val) {
227 parse_str($val, $check);
228 return where($check);
229 }
230
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231 /** Create query string where condition from value
232 * @param int condition order
233 * @param string column identifier
234 * @param string
235 * @return string
186c058 Utilize where_link function
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236 * @return string
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237 */
186c058 Utilize where_link function
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238 function where_link($i, $column, $value, $operator = "=") {
239 return "&where%5B$i%5D%5Bcol%5D=" . urlencode($column) . "&where%5B$i%5D%5Bop%5D=" . urlencode($operator) . "&where%5B$i%5D%5Bval%5D=" . urlencode($value);
c42c46a Table relations
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240 }
241
319cba4 Save e-mail from to cookie
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242 /** Set cookie valid for 1 month
243 * @param string
244 * @param string
245 * @return bool
246 */
247 function cookie($name, $value) {
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248 $params = array(
249 $name,
250 (ereg("\n", $value) ? "" : $value), // HTTP Response Splitting protection in PHP < 5.1.2
251 time() + 2592000, // 2592000 - 30 days
252 preg_replace('~\\?.*~', '', $_SERVER["REQUEST_URI"]),
253 "",
254 $_SERVER["HTTPS"] && strcasecmp($_SERVER["HTTPS"], "off")
255 );
c2334db Secure cookies
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256 if (version_compare(PHP_VERSION, '5.2.0') >= 0) {
257 $params[] = true; // HttpOnly
258 }
259 return call_user_func_array('setcookie', $params);
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260 }
261
f9a2023 Improve concurrency
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262 /** Restart stopped session
263 * @return null
264 */
265 function restart_session() {
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266 if (!ini_bool("session.use_cookies")) {
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267 session_start();
268 }
269 }
270
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271 /** Get session variable for current server
272 * @param string
273 * @return mixed
274 */
275 function &get_session($key) {
276 return $_SESSION[$key][DRIVER][SERVER][$_GET["username"]];
277 }
278
279 /** Set session variable for current server
280 * @param string
281 * @param mixed
282 * @return mixed
283 */
284 function set_session($key, $val) {
285 $_SESSION[$key][DRIVER][SERVER][$_GET["username"]] = $val; // used also in auth.inc.php
286 }
287
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288 /** Send Location header and exit
9bb1909 Fix Save and continue edit
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289 * @param string null to only set a message
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290 * @param string
291 * @return null
292 */
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293 function redirect($location, $message = null) {
294 if (isset($message)) {
be49e08 Improve session restarting
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295 restart_session();
ff74bf0 Allow multiple messages
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296 $_SESSION["messages"][] = $message;
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297 }
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298 if (isset($location)) {
299 header("Location: " . ($location != "" ? $location : "."));
300 exit;
301 }
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302 }
303
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304 /** Execute query and redirect if successful
305 * @param string
306 * @param string
307 * @param string
308 * @param bool
309 * @param bool
310 * @param bool
311 * @return bool
312 */
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313 function query_redirect($query, $location, $message, $redirect = true, $execute = true, $failed = false) {
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314 global $connection, $error, $adminer;
f9a2023 Improve concurrency
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315 if ($execute) {
316 $failed = !$connection->query($query);
317 }
10bdbed Save queries to history
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318 $sql = "";
319 if ($query) {
c64c4fd Adminer class
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320 $sql = $adminer->messageQuery($query);
10bdbed Save queries to history
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321 }
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322 if ($failed) {
c1130ed Simplify SQL syntax errors everywhere
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323 $error = error() . $sql;
c48a017 Print SQL query by error
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324 return false;
f91b2c4 Print SQL query by message
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325 }
c48a017 Print SQL query by error
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326 if ($redirect) {
327 redirect($location, $message . $sql);
328 }
329 return true;
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330 }
331
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332 /** Execute and remember query
333 * @param string null to return remembered queries
334 * @return Min_Result
335 */
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336 function queries($query = null) {
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337 global $connection;
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338 static $queries = array();
339 if (!isset($query)) {
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340 // return executed queries without parameter
36950eb Tables and views
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341 return implode(";\n", $queries);
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342 }
343 $queries[] = $query;
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344 return $connection->query($query);
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345 }
346
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347 /** Redirect by remembered queries
348 * @param string
349 * @param string
350 * @param bool
351 */
352 function queries_redirect($location, $message, $redirect) {
353 return query_redirect(queries(), $location, $message, $redirect, false, !$redirect);
354 }
355
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356 /** Remove parameter from query string
357 * @param string
358 * @return string
359 */
d41d446 remove_from_uri()
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360 function remove_from_uri($param = "") {
483d7dc Remove session_name() only without SID (bug #2910681)
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361 return substr(preg_replace("~(?<=[?&])($param" . (SID ? "" : "|" . session_name()) . ")=[^&]*&~", '', "$_SERVER[REQUEST_URI]&"), 0, -1);
d41d446 remove_from_uri()
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362 }
363
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364 /** Generate page number for pagination
365 * @param int
366 * @return string
367 */
bd25295 Don't redirect from last page
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368 function pagination($page, $current) {
369 return " " . ($page == $current ? $page + 1 : '<a href="' . h(remove_from_uri("page") . ($page ? "&page=$page" : "")) . '">' . ($page + 1) . "</a>");
1456283 Pages on last page
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370 }
371
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372 /** Get file contents from $_FILES
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373 * @param string
374 * @param bool
3e9b1ba Don't store files in hidden fields
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375 * @return mixed int for error, string otherwise
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376 */
25f01d3 Compress export and import
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377 function get_file($key, $decompress = false) {
378 $file = $_FILES[$key];
379 if (!$file || $file["error"]) {
380 return $file["error"];
430034c Cottage homework
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381 }
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382 return file_get_contents($decompress && ereg('\\.gz$', $file["name"]) ? "compress.zlib://$file[tmp_name]"
383 : ($decompress && ereg('\\.bz2$', $file["name"]) ? "compress.bzip2://$file[tmp_name]"
384 : $file["tmp_name"]
385 )); //! may not be reachable because of open_basedir
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386 }
387
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388 /** Determine upload error
389 * @param int
390 * @return string
391 */
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392 function upload_error($error) {
393 $max_size = ($error == UPLOAD_ERR_INI_SIZE ? ini_get("upload_max_filesize") : null); // post_max_size is checked in index.php
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394 return ($error ? lang('Unable to upload a file.') . ($max_size ? " " . lang('Maximum allowed file size is %sB.', $max_size) : "") : lang('File does not exist.'));
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395 }
396
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397 /** Generate class for odd rows
398 * @param string return this for odd rows, empty to reset counter
399 * @return string
400 */
401 function odd($return = ' class="odd"') {
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402 static $i = 0;
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403 if (!$return) { // reset counter
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404 $i = -1;
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405 }
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406 return ($i++ % 2 ? $return : '');
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407 }
408
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409 /** Check whether the string is in UTF-8
410 * @param string
411 * @return bool
412 */
017ffb5 Better UTF-8 detection
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413 function is_utf8($val) {
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414 // don't print control chars except \t\r\n
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415 return (preg_match('~~u', $val) && !preg_match('~[\\0-\\x8\\xB\\xC\\xE-\\x1F]~', $val));
416 }
417
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418 /** Shorten UTF-8 string
419 * @param string
420 * @param int
421 * @param string
422 * @return string escaped string with appended ...
423 */
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424 function shorten_utf8($string, $length = 80, $suffix = "") {
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425 if (!preg_match("(^([\t\r\n -\x{FFFF}]{0,$length})($)?)u", $string, $match)) { // ~s causes trash in $match[2] under some PHP versions, (.|\n) is slow
426 preg_match("(^([\t\r\n -~]{0,$length})($)?)", $string, $match);
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427 }
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428 return h($match[1]) . $suffix . (isset($match[2]) ? "" : "<em>...</em>");
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429 }
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430
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431 /** Generate friendly URL
432 * @param string
433 * @return string
434 */
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435 function friendly_url($val) {
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436 // used for blobs and export
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437 return preg_replace('~[^a-z0-9_]~i', '-', $val);
438 }
439
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jakubvrana authored
440 /** Print hidden fields
441 * @param array
442 * @param array
443 * @return null
444 */
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445 function hidden_fields($process, $ignore = array()) {
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446 while (list($key, $val) = each($process)) {
447 if (is_array($val)) {
448 foreach ($val as $k => $v) {
449 $process[$key . "[$k]"] = $v;
450 }
451 } elseif (!in_array($key, $ignore)) {
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452 echo '<input type="hidden" name="' . h($key) . '" value="' . h($val) . '">';
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453 }
454 }
455 }
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456
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457 /** Print hidden fields for GET forms
458 * @return null
459 */
460 function hidden_fields_get() {
461 echo (SID && !$_COOKIE ? '<input type="hidden" name="' . session_name() . '" value="' . h(session_id()) . '">' : '');
462 echo (SERVER !== null ? '<input type="hidden" name="' . DRIVER . '" value="' . h(SERVER) . '">' : "");
463 echo '<input type="hidden" name="username" value="' . h($_GET["username"]) . '">';
464 }
465
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466 /** Find out foreign keys for each column
467 * @param string
468 * @return array array($col => array())
469 */
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470 function column_foreign_keys($table) {
471 $return = array();
472 foreach (foreign_keys($table) as $foreign_key) {
473 foreach ($foreign_key["source"] as $val) {
474 $return[$val][] = $foreign_key;
475 }
476 }
477 return $return;
478 }
479
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480 /** Print enum input field
481 * @param string "radio"|"checkbox"
482 * @param string
483 * @param array
484 * @param mixed int|string|array
485 * @return null
486 */
487 function enum_input($type, $name, $field, $value) {
488 preg_match_all("~'((?:[^']|'')*)'~", $field["length"], $matches);
489 foreach ($matches[1] as $i => $val) {
490 $val = stripcslashes(str_replace("''", "'", $val));
491 $checked = (is_int($value) ? $value == $i+1 : (is_array($value) ? in_array($i+1, $value) : $value === $val));
492 echo " <label><input type='$type' name='$name' value='" . ($i+1) . "'" . ($checked ? ' checked' : '') . '>' . h($val) . '</label>';
493 }
494 }
495
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496 /** Print edit input field
497 * @param array one field from fields()
498 * @param mixed
499 * @param string
500 * @return null
501 */
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502 function input($field, $value, $function) {
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503 global $types, $adminer, $driver;
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504 $name = h(bracket_escape($field["field"]));
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505 echo "<td class='function'>";
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506 $functions = (isset($_GET["select"]) ? array("orig" => lang('original')) : array()) + $adminer->editFunctions($field);
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507 if ($field["type"] == "enum") {
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508 echo nbsp($functions[""]) . "<td>" . ($functions["orig"] ? "<label><input type='radio' name='fields[$name]' value='-1' checked><em>$functions[orig]</em></label> " : "");
509 echo $adminer->editInput($_GET["edit"], $field, " name='fields[$name]'", $value);
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510 enum_input("radio", "fields[$name]", $field, $value);
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511 } else {
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512 $first = 0;
513 foreach ($functions as $key => $val) {
514 if ($key === "" || !$val) {
515 break;
516 }
517 $first++;
518 }
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519 $onchange = ($first ? " onchange=\"var f = this.form['function[" . addcslashes($name, "\r\n'\\") . "]']; if ($first > f.selectedIndex) f.selectedIndex = $first;\"" : "");
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520 $attrs = " name='fields[$name]'$onchange";
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521 echo (count($functions) > 1 ? html_select("function[$name]", $functions, !isset($function) || in_array($function, $functions) ? $function : "") : nbsp(reset($functions))) . '<td>';
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522 $input = $adminer->editInput($_GET["edit"], $field, $attrs, $value); // usage in call is without a table
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523 if ($input != "") {
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524 echo $input;
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525 } elseif ($field["type"] == "set") { //! 64 bits
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526 preg_match_all("~'((?:[^']|'')*)'~", $field["length"], $matches);
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527 foreach ($matches[1] as $i => $val) {
528 $val = stripcslashes(str_replace("''", "'", $val));
529 $checked = (is_int($value) ? ($value >> $i) & 1 : in_array($val, explode(",", $value), true));
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530 echo " <label><input type='checkbox' name='fields[$name][$i]' value='" . (1 << $i) . "'" . ($checked ? ' checked' : '') . "$onchange>" . h($val) . '</label>';
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531 }
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532 } elseif (ereg('binary|blob|bytea', $field["type"]) && ini_bool("file_uploads")) {
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533 echo "<input type='file' name='fields-$name'$onchange>";
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534 } elseif (ereg('text|blob', $field["type"])) {
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535 echo "<textarea " . ($driver != "sqlite" || ereg("\n", $value) ? "cols='50' rows='12'" : "cols='30' rows='1' style='height: 1.2em;'") . "$attrs>" . h($value) . '</textarea>'; // 1.2em - line-height
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536 } else {
537 // int(3) is only a display hint
538 $maxlength = (!ereg('int', $field["type"]) && preg_match('~^([0-9]+)(,([0-9]+))?$~', $field["length"], $match) ? ($match[1] + ($match[3] ? 1 : 0) + ($match[2] && !$field["unsigned"] ? 1 : 0)) : ($types[$field["type"]] ? $types[$field["type"]] + ($field["unsigned"] ? 0 : 1) : 0));
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539 echo "<input value='" . h($value) . "'" . ($maxlength ? " maxlength='$maxlength'" : "") . (ereg('char', $field["type"]) && $field["length"] > 20 ? " size='40'" : "") . "$attrs>";
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540 }
541 }
542 }
543
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544 /** Process edit input field
545 * @param one field from fields()
546 * @return string
547 */
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548 function process_input($field) {
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549 global $connection, $adminer;
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550 $idf = bracket_escape($field["field"]);
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551 $function = $_POST["function"][$idf];
552 $value = $_POST["fields"][$idf];
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553 if ($field["type"] == "enum") {
554 if ($value == -1) {
555 return false;
556 }
557 if ($value == "") {
558 return "NULL";
559 }
560 return intval($value);
561 }
562 if ($field["auto_increment"] && $value == "") {
563 return null;
564 }
565 if ($function == "orig") {
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566 return false;
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567 }
568 if ($function == "NULL") {
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569 return "NULL";
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570 }
571 if ($field["type"] == "set") {
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572 return array_sum((array) $value);
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573 }
574 if (ereg('binary|blob|bytea', $field["type"]) && ini_bool("file_uploads")) {
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575 $file = get_file("fields-$idf");
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576 if (!is_string($file)) {
577 return false; //! report errors
578 }
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579 return $connection->quote($file);
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580 }
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581 return $adminer->processInput($field, $value, $function);
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582 }
583
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584 /** Print results of search in all tables
585 * @uses $_GET["where"][0]
586 * @uses $_POST["tables"]
587 * @return null
588 */
589 function search_tables() {
590 global $adminer, $connection;
591 $found = false;
592 foreach (table_status() as $table => $table_status) {
593 $name = $adminer->tableName($table_status);
594 if (isset($table_status["Engine"]) && $name != "" && (!$_POST["tables"] || in_array($table, $_POST["tables"]))) {
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595 $result = $connection->query("SELECT" . limit("1 FROM " . idf_escape($table) . " WHERE " . implode(" AND ", $adminer->selectSearchProcess(fields($table), array())), 1));
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596 if ($result->num_rows) {
597 if (!$found) {
598 echo "<ul>\n";
599 $found = true;
600 }
601 echo "<li><a href='" . h(ME . "select=" . urlencode($table) . "&where[0][op]=" . urlencode($_GET["where"][0]["op"]) . "&where[0][val]=" . urlencode($_GET["where"][0]["val"])) . "'>" . h($name) . "</a>\n";
602 }
603 }
604 }
605 echo ($found ? "</ul>" : "<p class='message'>" . lang('No tables.')) . "\n";
606 }
607
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608 /** Print CSV row
609 * @param array
610 * @return null
611 */
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612 function dump_csv($row) {
613 foreach ($row as $key => $val) {
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614 if (preg_match("~[\"\n,;]~", $val) || $val === "") {
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615 $row[$key] = '"' . str_replace('"', '""', $val) . '"';
616 }
617 }
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618 echo implode(($_POST["format"] == "csv" ? "," : ";"), $row) . "\n";
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619 }
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620
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621 /** Apply SQL function
622 * @param string
623 * @param string escaped column identifier
624 * @return string
625 */
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626 function apply_sql_function($function, $column) {
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627 return ($function ? ($function == "unixepoch" ? "DATETIME($column, '$function')" : ($function == "count distinct" ? "COUNT(DISTINCT " : strtoupper("$function(")) . "$column)") : $column);
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628 }
629
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630 /** Check whether the string is e-mail address
631 * @param string
632 * @return bool
633 */
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634 function is_email($email) {
635 $atom = '[-a-z0-9!#$%&\'*+/=?^_`{|}~]'; // characters of local-name
636 $domain = '[a-z0-9]([-a-z0-9]{0,61}[a-z0-9])'; // one domain component
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637 $pattern = "$atom+(\\.$atom+)*@($domain?\\.)+$domain";
638 return preg_match("(^$pattern(,\\s*$pattern)*\$)i", $email);
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639 }
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640
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641 /** Check whether the string is URL address
642 * @param string
643 * @return bool
644 */
645 function is_url($string) {
646 $domain = '[a-z0-9]([-a-z0-9]{0,61}[a-z0-9])'; // one domain component
647 return preg_match("~^https?://($domain?\\.)+$domain(:[0-9]+)?(/.*)?(\\?.*)?(#.*)?\$~i", $string); //! restrict path, query and fragment characters
648 }
649
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650 /** Print header for hidden fieldset (close by </div></fieldset>)
651 * @param string
652 * @param string
653 * @param bool
654 * @return null
655 */
656 function print_fieldset($id, $legend, $visible = false) {
657 echo "<fieldset><legend><a href='#fieldset-$id' onclick=\"return !toggle('fieldset-$id');\">$legend</a></legend><div id='fieldset-$id'" . ($visible ? "" : " class='hidden'") . ">\n";
658 }
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659
660 /** Enclose $string to <b> if $bold is true
661 * @param string
662 * @param bool
663 * @return string
664 */
665 function bold($string, $bold) {
666 return ($bold ? "<b>$string</b>" : $string);
667 }
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