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667bfec Decomposition
jakubvrana authored
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 $connection;
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9 }
10
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11 /** Escape database identifier
12 * @param string
13 * @return string
14 */
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15 function idf_escape($idf) {
16 return "`" . str_replace("`", "``", $idf) . "`";
17 }
18
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19 /** Unescape database identifier
20 * @param string text inside ``
21 * @return string
22 */
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23 function idf_unescape($idf) {
24 return str_replace("``", "`", $idf);
25 }
26
5e01a62 Prepare for SQLite
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27 /** Escape string to use inside ''
28 * @param string
29 * @return string
30 */
31 function escape_string($val) {
32 global $connection;
33 return substr($connection->quote($val), 1, -1);
34 }
35
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36 /** Escape or unescape string to use inside form []
37 * @param string
38 * @param bool
39 * @return string
40 */
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41 function bracket_escape($idf, $back = false) {
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42 // escape brackets inside name="x[]"
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43 static $trans = array(':' => ':1', ']' => ':2', '[' => ':3');
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44 return strtr($idf, ($back ? array_flip($trans) : $trans));
45 }
46
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47 /** Escape for HTML
48 * @param string
49 * @return string
50 */
689699a Shortcut for htmlspecialchars
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51 function h($string) {
52 return htmlspecialchars($string, ENT_QUOTES);
53 }
54
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55 /** Escape for TD
56 * @param string
57 * @return string
58 */
c196985 Function nbsp
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59 function nbsp($string) {
60 return (strlen(trim($string)) ? h($string) : "&nbsp;");
61 }
62
6b30cfa Separate checkbox
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63 /** Generate HTML checkbox
64 * @param string
65 * @param string
66 * @param bool
67 * @param string
68 * @param string
69 * @return string
70 */
71 function checkbox($name, $value, $checked, $label = "", $onclick = "") {
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72 static $id = 0;
73 $id++;
74 $return = "<input type='checkbox' name='$name' value='" . h($value) . "'" . ($checked ? " checked" : "") . ($onclick ? " onclick=\"$onclick\"" : "") . " id='checkbox-$id'>";
75 return (strlen($label) ? "<label for='checkbox-$id'>$return" . h($label) . "</label>" : $return);
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76 }
77
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78 /** Generate list of HTML options
79 * @param array array of strings or arrays (creates optgroup)
80 * @param mixed
81 * @param bool always use array keys for value="", otherwise only string keys are used
82 * @return string
83 */
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84 function optionlist($options, $selected = null, $use_keys = false) {
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85 $return = "";
86 foreach ($options as $k => $v) {
87 if (is_array($v)) {
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88 $return .= '<optgroup label="' . h($k) . '">';
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89 }
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90 foreach ((is_array($v) ? $v : array($k => $v)) as $key => $val) {
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91 $return .= '<option' . ($use_keys || is_string($key) ? ' value="' . h($key) . '"' : '') . (($use_keys || is_string($key) ? (string) $key : $val) === $selected ? ' selected' : '') . '>' . h($val);
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92 }
93 if (is_array($v)) {
94 $return .= '</optgroup>';
95 }
96 }
97 return $return;
98 }
99
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100 /** Generate HTML radio list
101 * @param string
102 * @param array
103 * @param string
104 * @param string true for no onchange, false for radio
105 * @return string
106 */
107 function html_select($name, $options, $value = "", $onchange = true) {
108 if ($onchange) {
109 return "<select name='" . h($name) . "'" . (is_string($onchange) ? " onchange=\"$onchange\"" : "") . ">" . optionlist($options, $value) . "</select>";
110 }
111 $return = "";
112 foreach ($options as $key => $val) {
113 $return .= "<label><input type='radio' name='" . h($name) . "' value='" . h($key) . "'" . ($key == $value ? " checked" : "") . ">" . h($val) . "</label>";
114 }
115 return $return;
116 }
117
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118 /** Get list of values from database
119 * @param string
120 * @param mixed
121 * @return array
122 */
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123 function get_vals($query, $column = 0) {
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124 global $connection;
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125 $return = array();
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126 $result = $connection->query($query);
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127 if ($result) {
128 while ($row = $result->fetch_row()) {
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129 $return[] = $row[$column];
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130 }
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131 }
132 return $return;
133 }
134
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135 /** Find unique identifier of a row
136 * @param array
137 * @param array result of indexes()
138 * @return string query string
139 */
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140 function unique_idf($row, $indexes) {
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141 foreach ($indexes as $index) {
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142 if (ereg("PRIMARY|UNIQUE", $index["type"])) {
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143 $return = array();
144 foreach ($index["columns"] as $key) {
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145 if (!isset($row[$key])) { // NULL is ambiguous
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146 continue 2;
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147 }
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148 $return[] = urlencode("where[" . bracket_escape($key) . "]") . "=" . urlencode($row[$key]);
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149 }
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150 return $return;
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151 }
152 }
153 $return = array();
154 foreach ($row as $key => $val) {
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155 if (!preg_match('~^(COUNT\\((\\*|(DISTINCT )?`(?:[^`]|``)+`)\\)|(AVG|GROUP_CONCAT|MAX|MIN|SUM)\\(`(?:[^`]|``)+`\\))$~', $key)) { //! columns looking like functions
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156 $return[] = (isset($val) ? urlencode("where[" . bracket_escape($key) . "]") . "=" . urlencode($val) : "null%5B%5D=" . urlencode($key));
157 }
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158 }
159 return $return;
160 }
161
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162 /** Create SQL condition from parsed query string
163 * @param array parsed query string
164 * @return string
165 */
9ea3112 Mandatory $where in where()
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166 function where($where) {
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167 $return = array();
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168 foreach ((array) $where["where"] as $key => $val) {
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169 $key = bracket_escape($key, "back");
ffc103d Compare floats as strings (bug #2886518)
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170 $return[] = (preg_match('~^[A-Z0-9_]+\\(`(?:[^`]|``)+`\\)$~', $key) ? $key : idf_escape($key)) . " LIKE " . exact_value(addcslashes($val, "%_")); // LIKE because of floats //! enum and set, columns looking like functions
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171 }
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172 foreach ((array) $where["null"] as $key) {
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173 $key = bracket_escape($key, "back");
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174 $return[] = (preg_match('~^[A-Z0-9_]+\\(`(?:[^`]|``)+`\\)$~', $key) ? $key : idf_escape($key)) . " IS NULL";
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175 }
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176 return implode(" AND ", $return);
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177 }
178
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179 /** Create SQL condition from query string
180 * @param string
181 * @return string
182 */
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183 function where_check($val) {
184 parse_str($val, $check);
185 return where($check);
186 }
187
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188 /** Create query string where condition from value
189 * @param int condition order
190 * @param string column identifier
191 * @param string
192 * @return string
193 */
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194 function where_link($i, $column, $value) {
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195 return "&where%5B$i%5D%5Bcol%5D=" . urlencode($column) . "&where%5B$i%5D%5Bop%5D=%3D&where%5B$i%5D%5Bval%5D=" . urlencode($value);
c42c46a Table relations
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196 }
197
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198 /** Set cookie valid for 1 month
199 * @param string
200 * @param string
201 * @return bool
202 */
203 function cookie($name, $value) {
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204 return setcookie($name, $value, time() + 2592000, preg_replace('~\\?.*~', '', $_SERVER["REQUEST_URI"])); // 2592000 = 30 * 24 * 60 * 60
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205 }
206
f9a2023 Improve concurrency
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207 /** Restart stopped session
208 * @return null
209 */
210 function restart_session() {
211 if (!ini_get("session.use_cookies")) {
212 session_start();
213 }
214 }
215
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216 /** Send Location header and exit
217 * @param string
218 * @param string
219 * @return null
220 */
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221 function redirect($location, $message = null) {
222 if (isset($message)) {
be49e08 Improve session restarting
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223 restart_session();
ff74bf0 Allow multiple messages
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224 $_SESSION["messages"][] = $message;
430034c Cottage homework
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225 }
226 header("Location: " . (strlen($location) ? $location : "."));
227 exit;
228 }
229
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230 /** Execute query and redirect if successful
231 * @param string
232 * @param string
233 * @param string
234 * @param bool
235 * @param bool
236 * @param bool
237 * @return bool
238 */
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239 function query_redirect($query, $location, $message, $redirect = true, $execute = true, $failed = false) {
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240 global $connection, $error, $adminer;
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241 if ($execute) {
242 $failed = !$connection->query($query);
243 }
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244 $sql = "";
245 if ($query) {
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246 $sql = $adminer->messageQuery($query);
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247 }
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248 if ($failed) {
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249 $error = h($connection->error) . $sql;
c48a017 Print SQL query by error
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250 return false;
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251 }
c48a017 Print SQL query by error
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252 if ($redirect) {
253 redirect($location, $message . $sql);
254 }
255 return true;
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256 }
257
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258 /** Execute and remember query
259 * @param string null to return remembered queries
260 * @return Min_Result
261 */
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262 function queries($query = null) {
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263 global $connection;
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264 static $queries = array();
265 if (!isset($query)) {
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266 // return executed queries without parameter
36950eb Tables and views
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267 return implode(";\n", $queries);
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268 }
269 $queries[] = $query;
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270 return $connection->query($query);
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271 }
272
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273 /** Redirect by remembered queries
274 * @param string
275 * @param string
276 * @param bool
277 */
278 function queries_redirect($location, $message, $redirect) {
279 return query_redirect(queries(), $location, $message, $redirect, false, !$redirect);
280 }
281
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282 /** Remove parameter from query string
283 * @param string
284 * @return string
285 */
d41d446 remove_from_uri()
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286 function remove_from_uri($param = "") {
6272cae Unconditionally remove session_name() in remove_from_uri()
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287 $param = "($param|" . session_name() . ")";
b6a172e Remove repetitive URI parameters
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288 return substr(preg_replace("~(?<=[?&])$param=[^&]*&~", '', "$_SERVER[REQUEST_URI]&"), 0, -1);
d41d446 remove_from_uri()
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289 }
290
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291 /** Generate page number for pagination
292 * @param int
293 * @return string
294 */
c565c54 Let pagination function return
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295 function pagination($page) {
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296 return " " . ($page == $_GET["page"] ? $page + 1 : '<a href="' . h(remove_from_uri("page") . ($page ? "&page=$page" : "")) . '">' . ($page + 1) . "</a>");
1456283 Pages on last page
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297 }
298
3e9b1ba Don't store files in hidden fields
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299 /** Get file contents from $_FILES
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300 * @param string
301 * @param bool
3e9b1ba Don't store files in hidden fields
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302 * @return mixed int for error, string otherwise
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303 */
25f01d3 Compress export and import
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304 function get_file($key, $decompress = false) {
305 $file = $_FILES[$key];
306 if (!$file || $file["error"]) {
307 return $file["error"];
430034c Cottage homework
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308 }
0a2d81d Bzip2 import
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309 return file_get_contents($decompress && ereg('\\.gz$', $file["name"]) ? "compress.zlib://$file[tmp_name]"
310 : ($decompress && ereg('\\.bz2$', $file["name"]) ? "compress.bzip2://$file[tmp_name]"
311 : $file["tmp_name"]
312 )); //! may not be reachable because of open_basedir
430034c Cottage homework
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313 }
314
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315 /** Determine upload error
316 * @param int
317 * @return string
318 */
e2a03c0 Show upload_max_filesize
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319 function upload_error($error) {
320 $max_size = ($error == UPLOAD_ERR_INI_SIZE ? ini_get("upload_max_filesize") : null); // post_max_size is checked in index.php
b2a7c7a Execute SQL file stored on server disk
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321 return ($error ? lang('Unable to upload a file.') . ($max_size ? " " . lang('Maximum allowed file size is %sB.', $max_size) : "") : lang('File does not exist.'));
e2a03c0 Show upload_max_filesize
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322 }
323
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324 /** Generate class for odd rows
325 * @param string return this for odd rows, empty to reset counter
326 * @return string
327 */
328 function odd($return = ' class="odd"') {
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329 static $i = 0;
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330 if (!$return) { // reset counter
1b97f48 Reset odd() for each result
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331 $i = -1;
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332 }
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333 return ($i++ % 2 ? $return : '');
4e5b126 Highlight odd and hover rows
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334 }
335
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336 /** Check whether the string is in UTF-8
337 * @param string
338 * @return bool
339 */
017ffb5 Better UTF-8 detection
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340 function is_utf8($val) {
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341 // don't print control chars except \t\r\n
017ffb5 Better UTF-8 detection
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342 return (preg_match('~~u', $val) && !preg_match('~[\\0-\\x8\\xB\\xC\\xE-\\x1F]~', $val));
343 }
344
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345 /** Shorten UTF-8 string
346 * @param string
347 * @param int
348 * @param string
349 * @return string escaped string with appended ...
350 */
cd07584 Save SQL query to history
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351 function shorten_utf8($string, $length = 80, $suffix = "") {
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352 if (!preg_match("(^([\t\r\n -\x{FFFF}]{0,$length})($)?)u", $string, $match)) { // ~s causes trash in $match[2] under some PHP versions, (.|\n) is slow
353 preg_match("(^([\t\r\n -~]{0,$length})($)?)", $string, $match);
95764b0 Shorten binary strings
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354 }
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355 return h($match[1]) . $suffix . (isset($match[2]) ? "" : "<em>...</em>");
02a851c Shorten texts in PHP
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356 }
3920ebb Remove InnoDB table comment in Tables and views
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357
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358 /** Generate friendly URL
359 * @param string
360 * @return string
361 */
8251896 Downloaded file name
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362 function friendly_url($val) {
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363 // used for blobs and export
8251896 Downloaded file name
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364 return preg_replace('~[^a-z0-9_]~i', '-', $val);
365 }
366
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jakubvrana authored
367 /** Print hidden fields
368 * @param array
369 * @param array
370 * @return null
371 */
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372 function hidden_fields($process, $ignore = array()) {
5d7071a Choose language through option-list
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373 while (list($key, $val) = each($process)) {
374 if (is_array($val)) {
375 foreach ($val as $k => $v) {
376 $process[$key . "[$k]"] = $v;
377 }
378 } elseif (!in_array($key, $ignore)) {
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379 echo '<input type="hidden" name="' . h($key) . '" value="' . h($val) . '">';
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380 }
381 }
382 }
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383
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384 /** Find out foreign keys for each column
385 * @param string
386 * @return array array($col => array())
387 */
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388 function column_foreign_keys($table) {
389 $return = array();
390 foreach (foreign_keys($table) as $foreign_key) {
391 foreach ($foreign_key["source"] as $val) {
392 $return[$val][] = $foreign_key;
393 }
394 }
395 return $return;
396 }
397
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398 /** Print edit input field
399 * @param array one field from fields()
400 * @param mixed
401 * @param string
402 * @return null
403 */
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404 function input($field, $value, $function) {
c64c4fd Adminer class
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405 global $types, $adminer;
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406 $name = h(bracket_escape($field["field"]));
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407 echo "<td class='function'>";
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408 $functions = (isset($_GET["select"]) ? array("orig" => lang('original')) : array()) + $adminer->editFunctions($field);
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409 if ($field["type"] == "enum") {
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410 echo nbsp($functions[""]) . "<td>" . ($functions["orig"] ? "<label><input type='radio' name='fields[$name]' value='-1' checked><em>$functions[orig]</em></label> " : "");
411 echo $adminer->editInput($_GET["edit"], $field, " name='fields[$name]'", $value);
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412 preg_match_all("~'((?:[^']|'')*)'~", $field["length"], $matches);
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413 foreach ($matches[1] as $i => $val) {
414 $val = stripcslashes(str_replace("''", "'", $val));
415 $checked = (is_int($value) ? $value == $i+1 : $value === $val);
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416 echo " <label><input type='radio' name='fields[$name]' value='" . ($i+1) . "'" . ($checked ? ' checked' : '') . '>' . h($val) . '</label>';
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417 }
418 } else {
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419 $first = 0;
420 foreach ($functions as $key => $val) {
421 if ($key === "" || !$val) {
422 break;
423 }
424 $first++;
425 }
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426 $onchange = ($first ? " onchange=\"var f = this.form['function[" . addcslashes($name, "\r\n'\\") . "]']; if ($first > f.selectedIndex) f.selectedIndex = $first;\"" : "");
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427 $attrs = " name='fields[$name]'$onchange";
0698409 Utilize html_select
jakubvrana authored
428 echo (count($functions) > 1 ? html_select("function[$name]", $functions, !isset($function) || in_array($function, $functions) ? $function : "") : nbsp(reset($functions))) . '<td>';
a561252 Use distinct name for blob inputs
jakubvrana authored
429 $input = $adminer->editInput($_GET["edit"], $field, $attrs, $value); // usage in call is without a table
e1abcda Treat tinyint(1) as boolean
jakubvrana authored
430 if (strlen($input)) {
431 echo $input;
1e4d11e Select from foreign keys in Editor
jakubvrana authored
432 } elseif ($field["type"] == "set") { //! 64 bits
26c9d64 Fix long SQL query crash (bug #2839231)
jakubvrana authored
433 preg_match_all("~'((?:[^']|'')*)'~", $field["length"], $matches);
61640ee Move common functions
jakubvrana authored
434 foreach ($matches[1] as $i => $val) {
435 $val = stripcslashes(str_replace("''", "'", $val));
436 $checked = (is_int($value) ? ($value >> $i) & 1 : in_array($val, explode(",", $value), true));
4cead56 Edit default values directly in table creation
jakubvrana authored
437 echo " <label><input type='checkbox' name='fields[$name][$i]' value='" . (1 << $i) . "'" . ($checked ? ' checked' : '') . "$onchange>" . h($val) . '</label>';
61640ee Move common functions
jakubvrana authored
438 }
2204cef Use textarea for blob with disabled file uploads
jakubvrana authored
439 } elseif (ereg('binary|blob', $field["type"]) && ini_get("file_uploads")) {
a561252 Use distinct name for blob inputs
jakubvrana authored
440 echo "<input type='file' name='fields-$name'$onchange>";
2204cef Use textarea for blob with disabled file uploads
jakubvrana authored
441 } elseif (ereg('text|blob', $field["type"])) {
a561252 Use distinct name for blob inputs
jakubvrana authored
442 echo "<textarea cols='50' rows='12'$attrs>" . h($value) . '</textarea>';
61640ee Move common functions
jakubvrana authored
443 } else {
444 // int(3) is only a display hint
445 $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"]] + ($field["unsigned"] ? 0 : 1) : 0));
a561252 Use distinct name for blob inputs
jakubvrana authored
446 echo "<input value='" . h($value) . "'" . ($maxlength ? " maxlength='$maxlength'" : "") . (ereg('char', $field["type"]) && $field["length"] > 20 ? " size='40'" : "") . "$attrs>";
61640ee Move common functions
jakubvrana authored
447 }
448 }
449 }
450
9a176b0 Comments
jakubvrana authored
451 /** Process edit input field
452 * @param one field from fields()
453 * @return string
454 */
a0def47 Date localization
jakubvrana authored
455 function process_input($field) {
64d616c Rename get_dbh to connection
jakubvrana authored
456 global $connection, $adminer;
a0def47 Date localization
jakubvrana authored
457 $idf = bracket_escape($field["field"]);
61640ee Move common functions
jakubvrana authored
458 $function = $_POST["function"][$idf];
459 $value = $_POST["fields"][$idf];
460 if ($field["type"] == "enum" ? $value == -1 : $function == "orig") {
461 return false;
462 } elseif ($field["type"] == "enum" || $field["auto_increment"] ? !strlen($value) : $function == "NULL") {
463 return "NULL";
464 } elseif ($field["type"] == "enum") {
4cead56 Edit default values directly in table creation
jakubvrana authored
465 return intval($value);
61640ee Move common functions
jakubvrana authored
466 } elseif ($field["type"] == "set") {
4cead56 Edit default values directly in table creation
jakubvrana authored
467 return array_sum((array) $value);
2204cef Use textarea for blob with disabled file uploads
jakubvrana authored
468 } elseif (ereg('binary|blob', $field["type"]) && ini_get("file_uploads")) {
a561252 Use distinct name for blob inputs
jakubvrana authored
469 $file = get_file("fields-$idf");
61640ee Move common functions
jakubvrana authored
470 if (!is_string($file)) {
471 return false; //! report errors
472 }
91cb95a Remove unnecessary _binary
jakubvrana authored
473 return $connection->quote($file);
61640ee Move common functions
jakubvrana authored
474 } else {
a0def47 Date localization
jakubvrana authored
475 return $adminer->processInput($field, $value, $function);
61640ee Move common functions
jakubvrana authored
476 }
477 }
478
9a176b0 Comments
jakubvrana authored
479 /** Print CSV row
480 * @param array
481 * @return null
482 */
61640ee Move common functions
jakubvrana authored
483 function dump_csv($row) {
484 foreach ($row as $key => $val) {
485 if (preg_match("~[\"\n,]~", $val) || (isset($val) && !strlen($val))) {
486 $row[$key] = '"' . str_replace('"', '""', $val) . '"';
487 }
488 }
89a60e7 Use output buffering for dump compression
jakubvrana authored
489 echo implode(",", $row) . "\n";
61640ee Move common functions
jakubvrana authored
490 }
c16c57b E-mail sending
jakubvrana authored
491
9a176b0 Comments
jakubvrana authored
492 /** Apply SQL function
493 * @param string
494 * @param string escaped column identifier
495 * @return string
496 */
e331067 Move apply_sql_function
jakubvrana authored
497 function apply_sql_function($function, $column) {
498 return ($function ? ($function == "count distinct" ? "COUNT(DISTINCT " : strtoupper("$function(")) . "$column)" : $column);
499 }
500
9a176b0 Comments
jakubvrana authored
501 /** Check whether the string is e-mail address
502 * @param string
503 * @return bool
504 */
c16c57b E-mail sending
jakubvrana authored
505 function is_email($email) {
506 $atom = '[-a-z0-9!#$%&\'*+/=?^_`{|}~]'; // characters of local-name
507 $domain = '[a-z0-9]([-a-z0-9]{0,61}[a-z0-9])'; // one domain component
fb141cc Speedup
jakubvrana authored
508 return preg_match("(^$atom+(\\.$atom+)*@($domain?\\.)+$domain\$)i", $email);
c16c57b E-mail sending
jakubvrana authored
509 }
dc667ea Hide select export and import
jakubvrana authored
510
bc78866 Link URLs in select
jakubvrana authored
511 /** Check whether the string is URL address
512 * @param string
513 * @return bool
514 */
515 function is_url($string) {
516 $domain = '[a-z0-9]([-a-z0-9]{0,61}[a-z0-9])'; // one domain component
517 return preg_match("~^https?://($domain?\\.)+$domain(:[0-9]+)?(/.*)?(\\?.*)?(#.*)?\$~i", $string); //! restrict path, query and fragment characters
518 }
519
dc667ea Hide select export and import
jakubvrana authored
520 /** Print header for hidden fieldset (close by </div></fieldset>)
521 * @param string
522 * @param string
523 * @param bool
524 * @return null
525 */
526 function print_fieldset($id, $legend, $visible = false) {
527 echo "<fieldset><legend><a href='#fieldset-$id' onclick=\"return !toggle('fieldset-$id');\">$legend</a></legend><div id='fieldset-$id'" . ($visible ? "" : " class='hidden'") . ">\n";
528 }
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