| commit | author | age | ||
| 0b0dc9 | 1 | <?php |
| M | 2 | |
| 3 | /* | |
| 4 | Copyright (c) 2007, Till Brehm, projektfarm Gmbh | |
| 5 | Modified 2009, Marius Cramer, pixcept KG | |
| 6 | All rights reserved. | |
| 7 | ||
| 8 | Redistribution and use in source and binary forms, with or without modification, | |
| 9 | are permitted provided that the following conditions are met: | |
| 10 | ||
| 11 | * Redistributions of source code must retain the above copyright notice, | |
| 12 | this list of conditions and the following disclaimer. | |
| 13 | * Redistributions in binary form must reproduce the above copyright notice, | |
| 14 | this list of conditions and the following disclaimer in the documentation | |
| 15 | and/or other materials provided with the distribution. | |
| 16 | * Neither the name of ISPConfig nor the names of its contributors | |
| 17 | may be used to endorse or promote products derived from this software without | |
| 18 | specific prior written permission. | |
| 19 | ||
| 20 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND | |
| 21 | ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 22 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
| 23 | IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | |
| 24 | INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
| 25 | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 26 | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 27 | OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| 28 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
| 29 | EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 30 | */ | |
| 31 | ||
| 32 | class validate_cron { | |
| 7fe908 | 33 | |
| MC | 34 | function get_error($errmsg) { |
| 35 | global $app; | |
| 36 | ||
| 37 | if(isset($app->tform->wordbook[$errmsg])) { | |
| 38 | return $app->tform->wordbook[$errmsg]."<br>\r\n"; | |
| 39 | } else { | |
| 40 | return $errmsg."<br>\r\n"; | |
| 41 | } | |
| 42 | } | |
| 43 | ||
| 44 | /* | |
| 0b0dc9 | 45 | Validator function to check if a given cron command is in correct form (url only). |
| M | 46 | */ |
| 7fe908 | 47 | function command_format($field_name, $field_value, $validator) { |
| MC | 48 | if(preg_match("'^(\w+):\/\/'", $field_value, $matches)) { |
| 49 | ||
| 50 | $parsed = parse_url($field_value); | |
| 51 | if($parsed === false) return $this->get_error($validator['errmsg']); | |
| 52 | ||
| 53 | if($parsed["scheme"] != "http" && $parsed["scheme"] != "https") return $this->get_error($validator['errmsg']); | |
| 54 | ||
| 336368 | 55 | if(preg_match("'^([a-z0-9][a-z0-9\-]{0,62}\.)+([A-Za-z0-9\-]{2,30})$'i", $parsed["host"]) == false) return $this->get_error($validator['errmsg']); |
| 7fe908 | 56 | } |
| MC | 57 | } |
| 58 | ||
| 3fd659 | 59 | function run_month_format($field_name, $field_value, $validator) { |
| T | 60 | global $app; |
| 61 | //* allow value @reboot in month field | |
| 62 | if($field_value != '@reboot') { | |
| 63 | return $this->run_time_format($field_name, $field_value, $validator); | |
| 64 | } | |
| 65 | } | |
| 7fe908 | 66 | |
| 0b0dc9 | 67 | /* |
| M | 68 | Validator function to check if a given cron time is in correct form. |
| 69 | */ | |
| 70 | function run_time_format($field_name, $field_value, $validator) { | |
| 71 | global $app; | |
| 7fe908 | 72 | |
| MC | 73 | //* check general form |
| 74 | $is_ok = true; | |
| 75 | $field_value = str_replace(" ", "", $field_value); // spaces are not needed | |
| 76 | $used_times = array(); | |
| 77 | ||
| 78 | if(preg_match("'^[0-9\-\,\/\*]+$'", $field_value) == false) return $this->get_error($validator['errmsg']); // allowed characters are 0-9, comma, *, -, / | |
| 79 | elseif(preg_match("'[\-\,\/][\-\,\/]'", $field_value) == true) return $this->get_error($validator['errmsg']); // comma, - and / never stand together | |
| 80 | //* now split list and check each entry. store used values in array for later limit-check | |
| 81 | $time_list = explode(",", $field_value); | |
| 82 | if(count($time_list) < 1) return $this->get_error($validator['errmsg']); | |
| 83 | ||
| 84 | $max_entry = 0; | |
| 85 | $min_entry = 0; | |
| 86 | $in_minutes = 1; | |
| 87 | //* get maximum value of entry for each field type (name) | |
| 88 | switch($field_name) { | |
| 89 | case "run_min": | |
| 90 | $max_entry = 59; | |
| 91 | break; | |
| 92 | case "run_hour": | |
| 93 | $max_entry = 23; | |
| 94 | $in_minutes = 60; | |
| 95 | break; | |
| 96 | case "run_mday": | |
| 97 | $max_entry = 31; | |
| 98 | $min_entry = 1; | |
| 99 | $in_minutes = 1440; | |
| 100 | break; | |
| 101 | case "run_month": | |
| 102 | $max_entry = 12; | |
| 103 | $min_entry = 1; | |
| 104 | $in_minutes = 1440 * 28; // not exactly but enough | |
| 105 | break; | |
| 106 | case "run_wday": | |
| 107 | $max_entry = 7; | |
| 108 | $in_minutes = 1440; | |
| 109 | break; | |
| 110 | } | |
| 111 | ||
| 112 | if($max_entry == 0) return $this->get_error('unknown_fieldtype_error'); | |
| 113 | ||
| 114 | foreach($time_list as $entry) { | |
| 115 | //* possible value combinations: | |
| 116 | //* x => ^(\d+)$ | |
| 117 | //* x-y => ^(\d+)\-(\d+)$ | |
| 118 | //* x/y => ^(\d+)\/([1-9]\d*)$ | |
| 119 | //* x-y/z => ^(\d+)\-(\d+)\/([1-9]\d*)$ | |
| 120 | //* */x => ^\*\/([1-9]\d*)$ | |
| 121 | //* combined regex => ^(\d+|\*)(\-(\d+))?(\/([1-9]\d*))?$ | |
| 122 | ||
| 123 | if(preg_match("'^(((\d+)(\-(\d+))?)|\*)(\/([1-9]\d*))?$'", $entry, $matches) == false) { | |
| 124 | return $this->get_error($validator['errmsg']); | |
| 125 | } | |
| 126 | ||
| 127 | //* matches contains: | |
| 128 | //* 1 => * or value or x-y range | |
| 129 | //* 2 => unused | |
| 130 | //* 3 => value if [1] != * | |
| 131 | //* 4 => empty if no range was used | |
| 132 | //* 5 => 2nd value of range if [1] != * and range was used | |
| 133 | //* 6 => empty if step was not used | |
| 134 | //* 7 => step | |
| 135 | ||
| 136 | $loop_step = 1; | |
| 137 | $loop_from = $min_entry; | |
| 138 | $loop_to = $max_entry; | |
| 139 | ||
| 140 | //* calculate used values | |
| 141 | if($matches[1] == "*") { | |
| 142 | //* not to check | |
| 143 | } else { | |
| 144 | if($matches[3] < $min_entry || $matches[3] > $max_entry) { | |
| 145 | //* check if value is in allowed range | |
| 146 | return $this->get_error($validator['errmsg']); | |
| 147 | } elseif($matches[4] && ($matches[5] < $min_entry || $matches[5] > $max_entry || $matches[5] <= $matches[3])) { | |
| 148 | //* check if value is in allowed range and not less or equal to first value | |
| 149 | return $this->get_error($validator['errmsg']); | |
| 150 | } | |
| 151 | ||
| 152 | $loop_from = $matches[3]; | |
| 153 | $loop_to = $matches[3]; | |
| 154 | if($matches[4]) $loop_to = $matches[5]; | |
| 155 | } | |
| 156 | if($matches[6] && ($matches[7] < 2 || $matches[7] > $max_entry - 1)) { | |
| 157 | //* check if step value is valid | |
| 158 | return $this->get_error($validator['errmsg']); | |
| 159 | } | |
| 160 | if($matches[7]) $loop_step = $matches[7]; | |
| 161 | ||
| 162 | //* loop through values to set used times | |
| 163 | for($t = $loop_from; $t <= $loop_to; $t = $t + $loop_step) { | |
| 164 | $used_times[] = $t; | |
| 165 | } | |
| 166 | } //* end foreach entry loop | |
| 167 | ||
| 168 | //* sort used times and erase doubles | |
| 169 | sort($used_times); | |
| 170 | $used_times = array_unique($used_times); | |
| 171 | ||
| 172 | //* get minimum frequency and store it in $app->tform->cron_min_freq for usage in onUpdateSave and onInsertSave! | |
| 173 | $min_freq = -1; | |
| 174 | $prev_time = -1; | |
| 175 | foreach($used_times as $curtime) { | |
| 176 | if($prev_time != -1) { | |
| 177 | $freq = $curtime - $prev_time; | |
| 178 | if($min_freq == -1 || $freq < $min_freq) $min_freq = $freq; | |
| 179 | } | |
| 180 | $prev_time = $curtime; | |
| 181 | } | |
| 182 | ||
| 183 | //* check last against first (needed because e.g. wday 1,4,7 has diff 1 not 3 | |
| 184 | $prev_time = $used_times[0]; | |
| 185 | $freq = ($prev_time - $min_entry) + ($max_entry - $curtime) + 1; | |
| 186 | if($min_freq == -1 || $freq < $min_freq) $min_freq = $freq; | |
| 187 | ||
| 188 | if($min_freq > 0 && $min_freq <= $max_entry) { //* only store if > 1 && < $max_entry! | |
| 189 | $min_freq = $min_freq * $in_minutes; // we have to overwrite $app->tform->cron_min_freq if this is higher value | |
| 190 | if(!$app->tform->cron_min_freq || $app->tform->cron_min_freq > $min_freq) $app->tform->cron_min_freq = $min_freq; | |
| 191 | } | |
| 192 | ||
| 193 | //return "DEBUG: " . $app->tform->cron_min_freq . " ($min_freq) --- " . var_export($used_times, true) . "<br />"; | |
| 0b0dc9 | 194 | } |
| 7fe908 | 195 | |
| MC | 196 | |
| 197 | ||
| 198 | ||
| 199 | } | |
