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Diffstat (limited to 'plugins/managesieve/lib/rcube_sieve.php')
-rw-r--r--plugins/managesieve/lib/rcube_sieve.php729
1 files changed, 729 insertions, 0 deletions
diff --git a/plugins/managesieve/lib/rcube_sieve.php b/plugins/managesieve/lib/rcube_sieve.php
new file mode 100644
index 000000000..599bfdfed
--- /dev/null
+++ b/plugins/managesieve/lib/rcube_sieve.php
@@ -0,0 +1,729 @@
+<?php
+
+/*
+ Classes for managesieve operations (using PEAR::Net_Sieve)
+
+ Author: Aleksander Machniak <alec@alec.pl>
+
+ $Id$
+
+*/
+
+// Sieve Language Basics: http://www.ietf.org/rfc/rfc5228.txt
+
+define('SIEVE_ERROR_CONNECTION', 1);
+define('SIEVE_ERROR_LOGIN', 2);
+define('SIEVE_ERROR_NOT_EXISTS', 3); // script not exists
+define('SIEVE_ERROR_INSTALL', 4); // script installation
+define('SIEVE_ERROR_ACTIVATE', 5); // script activation
+define('SIEVE_ERROR_OTHER', 255); // other/unknown error
+
+
+class rcube_sieve
+{
+ var $sieve; // Net_Sieve object
+ var $error = false; // error flag
+ var $list = array(); // scripts list
+
+ public $script; // rcube_sieve_script object
+ private $disabled; // array of disabled extensions
+
+ /**
+ * Object constructor
+ *
+ * @param string Username (to managesieve login)
+ * @param string Password (to managesieve login)
+ * @param string Managesieve server hostname/address
+ * @param string Managesieve server port number
+ * @param string Enable/disable TLS use
+ * @param array Disabled extensions
+ */
+ public function __construct($username, $password='', $host='localhost', $port=2000, $usetls=true, $disabled=array())
+ {
+ $this->sieve = new Net_Sieve();
+
+// $this->sieve->setDebug();
+ if (PEAR::isError($this->sieve->connect($host, $port, NULL, $usetls)))
+ return $this->_set_error(SIEVE_ERROR_CONNECTION);
+
+ if (PEAR::isError($this->sieve->login($username, $password)))
+ return $this->_set_error(SIEVE_ERROR_LOGIN);
+
+ $this->disabled = $disabled;
+ $this->_get_script();
+ }
+
+ /**
+ * Getter for error code
+ */
+ public function error()
+ {
+ return $this->error ? $this->error : false;
+ }
+
+ public function save()
+ {
+ $script = $this->script->as_text();
+
+ if (!$script)
+ $script = '/* empty script */';
+
+ if (PEAR::isError($this->sieve->installScript('roundcube', $script)))
+ return $this->_set_error(SIEVE_ERROR_INSTALL);
+
+ if (PEAR::isError($this->sieve->setActive('roundcube')))
+ return $this->_set_error(SIEVE_ERROR_ACTIVATE);
+
+ return true;
+ }
+
+ public function get_extensions()
+ {
+ if ($this->sieve) {
+ $ext = $this->sieve->getExtensions();
+
+ if ($this->script) {
+ $supported = $this->script->get_extensions();
+ foreach ($ext as $idx => $ext_name)
+ if (!in_array($ext_name, $supported))
+ unset($ext[$idx]);
+ }
+
+ return array_values($ext);
+ }
+ }
+
+ private function _get_script()
+ {
+ if (!$this->sieve)
+ return false;
+
+ $this->list = $this->sieve->listScripts();
+
+ if (PEAR::isError($this->list))
+ return $this->_set_error(SIEVE_ERROR_OTHER);
+
+ if (in_array('roundcube', $this->list))
+ {
+ $script = $this->sieve->getScript('roundcube');
+
+ if (PEAR::isError($script))
+ return $this->_set_error(SIEVE_ERROR_OTHER);
+ }
+ // import scripts from squirrelmail
+ elseif (in_array('phpscript', $this->list))
+ {
+ $script = $this->sieve->getScript('phpscript');
+
+ $script = $this->_convert_from_squirrel_rules($script);
+
+ $this->script = new rcube_sieve_script($script);
+
+ $this->save();
+
+ $script = $this->sieve->getScript('roundcube');
+
+ if (PEAR::isError($script))
+ return $this->_set_error(SIEVE_ERROR_OTHER);
+ }
+ else
+ {
+ $this->_set_error(SIEVE_ERROR_NOT_EXISTS);
+ $script = '';
+ }
+
+ $this->script = new rcube_sieve_script($script, $this->disabled);
+ }
+
+ private function _convert_from_squirrel_rules($script)
+ {
+ $i = 0;
+ $name = array();
+ // tokenize rules
+ if ($tokens = preg_split('/(#START_SIEVE_RULE.*END_SIEVE_RULE)\n/', $script, -1, PREG_SPLIT_DELIM_CAPTURE))
+ foreach($tokens as $token)
+ {
+ if (preg_match('/^#START_SIEVE_RULE.*/', $token, $matches))
+ {
+ $name[$i] = "unnamed rule ".($i+1);
+ $content .= "# rule:[".$name[$i]."]\n";
+ }
+ elseif (isset($name[$i]))
+ {
+ $content .= "if ".$token."\n";
+ $i++;
+ }
+ }
+
+ return $content;
+ }
+
+
+ private function _set_error($error)
+ {
+ $this->error = $error;
+ return false;
+ }
+}
+
+class rcube_sieve_script
+{
+ var $content = array(); // script rules array
+
+ private $supported = array( // extensions supported by class
+ 'fileinto',
+ 'reject',
+ 'ereject',
+ 'vacation', // RFC5230
+ // TODO: (most wanted first) body, imapflags, notify, regex
+ );
+
+ /**
+ * Object constructor
+ *
+ * @param string Script's text content
+ * @param array Disabled extensions
+ */
+ public function __construct($script, $disabled)
+ {
+ global $CONFIG;
+
+ if (!empty($disabled))
+ foreach ($disabled as $ext)
+ if (($idx = array_search($ext, $this->supported)) !== false)
+ unset($this->supported[$idx]);
+
+ $this->content = $this->_parse_text($script);
+ }
+
+ /**
+ * Adds script contents as text to the script array (at the end)
+ *
+ * @param string Text script contents
+ */
+ public function add_text($script)
+ {
+ $content = $this->_parse_text($script);
+ $result = false;
+
+ // check existsing script rules names
+ foreach ($this->content as $idx => $elem)
+ $names[$elem['name']] = $idx;
+
+ foreach ($content as $elem)
+ if (!isset($names[$elem['name']]))
+ {
+ array_push($this->content, $elem);
+ $result = true;
+ }
+
+ return $result;
+ }
+
+ /**
+ * Adds rule to the script (at the end)
+ *
+ * @param string Rule name
+ * @param array Rule content (as array)
+ */
+ public function add_rule($content)
+ {
+ // TODO: check this->supported
+ array_push($this->content, $content);
+ return sizeof($this->content)-1;
+ }
+
+ public function delete_rule($index)
+ {
+ if(isset($this->content[$index]))
+ {
+ unset($this->content[$index]);
+ return true;
+ }
+ return false;
+ }
+
+ public function size()
+ {
+ return sizeof($this->content);
+ }
+
+ public function update_rule($index, $content)
+ {
+ // TODO: check this->supported
+ if ($this->content[$index])
+ {
+ $this->content[$index] = $content;
+ return $index;
+ }
+ return false;
+ }
+
+ /**
+ * Returns script as text
+ */
+ public function as_text()
+ {
+ $script = '';
+ $exts = array();
+
+ // rules
+ foreach ($this->content as $idx => $rule)
+ {
+ $extension = '';
+ $tests = array();
+ $i = 0;
+
+ // header
+ $script .= '# rule:[' . $rule['name'] . "]\n";
+
+ // constraints expressions
+ foreach ($rule['tests'] as $test)
+ {
+ $tests[$i] = '';
+ switch ($test['test'])
+ {
+ case 'size':
+ $tests[$i] .= ($test['not'] ? 'not ' : '');
+ $tests[$i] .= 'size :' . ($test['type']=='under' ? 'under ' : 'over ') . $test['arg'];
+ break;
+ case 'true':
+ $tests[$i] .= ($test['not'] ? 'not true' : 'true');
+ break;
+ case 'exists':
+ $tests[$i] .= ($test['not'] ? 'not ' : '');
+ if (is_array($test['arg']))
+ $tests[$i] .= 'exists ["' . implode('", "', $this->_escape_string($test['arg'])) . '"]';
+ else
+ $tests[$i] .= 'exists "' . $this->_escape_string($test['arg']) . '"';
+ break;
+ case 'header':
+ $tests[$i] .= ($test['not'] ? 'not ' : '');
+ $tests[$i] .= 'header :' . $test['type'];
+ if (is_array($test['arg1']))
+ $tests[$i] .= ' ["' . implode('", "', $this->_escape_string($test['arg1'])) . '"]';
+ else
+ $tests[$i] .= ' "' . $this->_escape_string($test['arg1']) . '"';
+ if (is_array($test['arg2']))
+ $tests[$i] .= ' ["' . implode('", "', $this->_escape_string($test['arg2'])) . '"]';
+ else
+ $tests[$i] .= ' "' . $this->_escape_string($test['arg2']) . '"';
+ break;
+ }
+ $i++;
+ }
+
+ $script .= ($idx>0 ? 'els' : '').($rule['join'] ? 'if allof (' : 'if anyof (');
+ if (sizeof($tests) > 1)
+ $script .= implode(",\n\t", $tests);
+ elseif (sizeof($tests))
+ $script .= $tests[0];
+ else
+ $script .= 'true';
+ $script .= ")\n{\n";
+
+ // action(s)
+ foreach ($rule['actions'] as $action)
+ switch ($action['type'])
+ {
+ case 'fileinto':
+ $extension = 'fileinto';
+ $script .= "\tfileinto \"" . $this->_escape_string($action['target']) . "\";\n";
+ break;
+ case 'redirect':
+ $script .= "\tredirect \"" . $this->_escape_string($action['target']) . "\";\n";
+ break;
+ case 'reject':
+ case 'ereject':
+ $extension = $action['type'];
+ if (strpos($action['target'], "\n")!==false)
+ $script .= "\t".$action['type']." text:\n" . $action['target'] . "\n.\n;\n";
+ else
+ $script .= "\t".$action['type']." \"" . $this->_escape_string($action['target']) . "\";\n";
+ break;
+ case 'keep':
+ case 'discard':
+ case 'stop':
+ $script .= "\t" . $action['type'] .";\n";
+ break;
+ case 'vacation':
+ $extension = 'vacation';
+ $script .= "\tvacation";
+ if ($action['days'])
+ $script .= " :days " . $action['days'];
+ if ($action['addresses'])
+ $script .= " :addresses " . $this->_print_list($action['addresses']);
+ if ($action['subject'])
+ $script .= " :subject \"" . $this->_escape_string($action['subject']) . "\"";
+ if ($action['handle'])
+ $script .= " :handle \"" . $this->_escape_string($action['handle']) . "\"";
+ if ($action['from'])
+ $script .= " :from \"" . $this->_escape_string($action['from']) . "\"";
+ if ($action['mime'])
+ $script .= " :mime";
+ if (strpos($action['reason'], "\n")!==false)
+ $script .= " text:\n" . $action['reason'] . "\n.\n;\n";
+ else
+ $script .= " \"" . $this->_escape_string($action['reason']) . "\";\n";
+ break;
+ }
+
+ $script .= "}\n";
+
+ if ($extension && !isset($exts[$extension]))
+ $exts[$extension] = $extension;
+ }
+
+ // requires
+ if (sizeof($exts))
+ $script = 'require ["' . implode('","', $exts) . "\"];\n" . $script;
+
+ return $script;
+ }
+
+ /**
+ * Returns script object
+ *
+ */
+ public function as_array()
+ {
+ return $this->content;
+ }
+
+ /**
+ * Returns array of supported extensions
+ *
+ */
+ public function get_extensions()
+ {
+ return array_values($this->supported);
+ }
+
+ /**
+ * Converts text script to rules array
+ *
+ * @param string Text script
+ */
+ private function _parse_text($script)
+ {
+ $i = 0;
+ $content = array();
+
+ // remove C comments
+ $script = preg_replace('|/\*.*?\*/|sm', '', $script);
+
+ // tokenize rules
+ if ($tokens = preg_split('/(# rule:\[.*\])\r?\n/', $script, -1, PREG_SPLIT_DELIM_CAPTURE))
+ foreach($tokens as $token)
+ {
+ if (preg_match('/^# rule:\[(.*)\]/', $token, $matches))
+ {
+ $content[$i]['name'] = $matches[1];
+ }
+ elseif (isset($content[$i]['name']) && sizeof($content[$i]) == 1)
+ {
+ if ($rule = $this->_tokenize_rule($token))
+ {
+ $content[$i] = array_merge($content[$i], $rule);
+ $i++;
+ }
+ else // unknown rule format
+ unset($content[$i]);
+ }
+ }
+
+ return $content;
+ }
+
+ /**
+ * Convert text script fragment to rule object
+ *
+ * @param string Text rule
+ */
+ private function _tokenize_rule($content)
+ {
+ $result = NULL;
+
+ if (preg_match('/^(if|elsif|else)\s+((allof|anyof|exists|header|not|size)\s+(.*))\s+\{(.*)\}$/sm', trim($content), $matches))
+ {
+ list($tests, $join) = $this->_parse_tests(trim($matches[2]));
+ $actions = $this->_parse_actions(trim($matches[5]));
+
+ if ($tests && $actions)
+ $result = array(
+ 'tests' => $tests,
+ 'actions' => $actions,
+ 'join' => $join,
+ );
+ }
+
+ return $result;
+ }
+
+ /**
+ * Parse body of actions section
+ *
+ * @param string Text body
+ * @return array Array of parsed action type/target pairs
+ */
+ private function _parse_actions($content)
+ {
+ $result = NULL;
+
+ // supported actions
+ $patterns[] = '^\s*discard;';
+ $patterns[] = '^\s*keep;';
+ $patterns[] = '^\s*stop;';
+ $patterns[] = '^\s*redirect\s+(.*?[^\\\]);';
+ if (in_array('fileinto', $this->supported))
+ $patterns[] = '^\s*fileinto\s+(.*?[^\\\]);';
+ if (in_array('reject', $this->supported)) {
+ $patterns[] = '^\s*reject\s+text:(.*)\n\.\n;';
+ $patterns[] = '^\s*reject\s+(.*?[^\\\]);';
+ $patterns[] = '^\s*ereject\s+text:(.*)\n\.\n;';
+ $patterns[] = '^\s*ereject\s+(.*?[^\\\]);';
+ }
+ if (in_array('vacation', $this->supported))
+ $patterns[] = '^\s*vacation\s+(.*?[^\\\]);';
+
+ $pattern = '/(' . implode('$)|(', $patterns) . '$)/ms';
+
+ // parse actions body
+ if (preg_match_all($pattern, $content, $mm, PREG_SET_ORDER))
+ {
+ foreach ($mm as $m)
+ {
+ $content = trim($m[0]);
+
+ if(preg_match('/^(discard|keep|stop)/', $content, $matches))
+ {
+ $result[] = array('type' => $matches[1]);
+ }
+ elseif(preg_match('/^fileinto/', $content))
+ {
+ $result[] = array('type' => 'fileinto', 'target' => $this->_parse_string($m[sizeof($m)-1]));
+ }
+ elseif(preg_match('/^redirect/', $content))
+ {
+ $result[] = array('type' => 'redirect', 'target' => $this->_parse_string($m[sizeof($m)-1]));
+ }
+ elseif(preg_match('/^(reject|ereject)\s+(.*);$/sm', $content, $matches))
+ {
+ $result[] = array('type' => $matches[1], 'target' => $this->_parse_string($matches[2]));
+ }
+ elseif(preg_match('/^vacation\s+(.*);$/sm', $content, $matches))
+ {
+ $vacation = array('type' => 'vacation');
+
+ if (preg_match('/:(days)\s+([0-9]+)/', $content, $vm)) {
+ $vacation['days'] = $vm[2];
+ $content = preg_replace('/:(days)\s+([0-9]+)/', '', $content);
+ }
+ if (preg_match('/:(subject)\s+(".*?[^\\\]")/', $content, $vm)) {
+ $vacation['subject'] = $vm[2];
+ $content = preg_replace('/:(subject)\s+(".*?[^\\\]")/', '', $content);
+ }
+ if (preg_match('/:(addresses)\s+\[(.*?[^\\\])\]/', $content, $vm)) {
+ $vacation['addresses'] = $this->_parse_list($vm[2]);
+ $content = preg_replace('/:(addresses)\s+\[(.*?[^\\\])\]/', '', $content);
+ }
+ if (preg_match('/:(handle)\s+(".*?[^\\\]")/', $content, $vm)) {
+ $vacation['handle'] = $vm[2];
+ $content = preg_replace('/:(handle)\s+(".*?[^\\\]")/', '', $content);
+ }
+ if (preg_match('/:(from)\s+(".*?[^\\\]")/', $content, $vm)) {
+ $vacation['from'] = $vm[2];
+ $content = preg_replace('/:(from)\s+(".*?[^\\\]")/', '', $content);
+ }
+ $content = preg_replace('/^vacation/', '', $content);
+ $content = preg_replace('/;$/', '', $content);
+ $content = trim($content);
+ if (preg_match('/^:(mime)/', $content, $vm)) {
+ $vacation['mime'] = true;
+ $content = preg_replace('/^:mime/', '', $content);
+ }
+
+ $vacation['reason'] = $this->_parse_string($content);
+
+ $result[] = $vacation;
+ }
+ }
+ }
+
+ return $result;
+ }
+
+ /**
+ * Parse test/conditions section
+ *
+ * @param string Text
+ */
+
+ private function _parse_tests($content)
+ {
+ $result = NULL;
+
+ // lists
+ if (preg_match('/^(allof|anyof)\s+\((.*)\)$/sm', $content, $matches))
+ {
+ $content = $matches[2];
+ $join = $matches[1]=='allof' ? true : false;
+ }
+ else
+ $join = false;
+
+ // supported tests regular expressions
+ // TODO: comparators, envelope
+ $patterns[] = '(not\s+)?(exists)\s+\[(.*?[^\\\])\]';
+ $patterns[] = '(not\s+)?(exists)\s+(".*?[^\\\]")';
+ $patterns[] = '(not\s+)?(true)';
+ $patterns[] = '(not\s+)?(size)\s+:(under|over)\s+([0-9]+[KGM]{0,1})';
+ $patterns[] = '(not\s+)?(header)\s+:(contains|is|matches)\s+\[(.*?[^\\\]")\]\s+\[(.*?[^\\\]")\]';
+ $patterns[] = '(not\s+)?(header)\s+:(contains|is|matches)\s+(".*?[^\\\]")\s+(".*?[^\\\]")';
+ $patterns[] = '(not\s+)?(header)\s+:(contains|is|matches)\s+\[(.*?[^\\\]")\]\s+(".*?[^\\\]")';
+ $patterns[] = '(not\s+)?(header)\s+:(contains|is|matches)\s+(".*?[^\\\]")\s+\[(.*?[^\\\]")\]';
+
+ // join patterns...
+ $pattern = '/(' . implode(')|(', $patterns) . ')/';
+
+ // ...and parse tests list
+ if (preg_match_all($pattern, $content, $matches, PREG_SET_ORDER))
+ {
+ foreach ($matches as $match)
+ {
+ $size = sizeof($match);
+
+ if (preg_match('/^(not\s+)?size/', $match[0]))
+ {
+ $result[] = array(
+ 'test' => 'size',
+ 'not' => $match[$size-4] ? true : false,
+ 'type' => $match[$size-2], // under/over
+ 'arg' => $match[$size-1], // value
+ );
+ }
+ elseif (preg_match('/^(not\s+)?header/', $match[0]))
+ {
+ $result[] = array(
+ 'test' => 'header',
+ 'not' => $match[$size-5] ? true : false,
+ 'type' => $match[$size-3], // is/contains/matches
+ 'arg1' => $this->_parse_list($match[$size-2]), // header(s)
+ 'arg2' => $this->_parse_list($match[$size-1]), // string(s)
+ );
+ }
+ elseif (preg_match('/^(not\s+)?exists/', $match[0]))
+ {
+ $result[] = array(
+ 'test' => 'exists',
+ 'not' => $match[$size-3] ? true : false,
+ 'arg' => $this->_parse_list($match[$size-1]), // header(s)
+ );
+ }
+ elseif (preg_match('/^(not\s+)?true/', $match[0]))
+ {
+ $result[] = array(
+ 'test' => 'true',
+ 'not' => $match[$size-2] ? true : false,
+ );
+ }
+ }
+ }
+
+ return array($result, $join);
+ }
+
+ /**
+ * Parse string value
+ *
+ * @param string Text
+ */
+ private function _parse_string($content)
+ {
+ $text = '';
+ $content = trim($content);
+
+ if (preg_match('/^text:(.*)\.$/sm', $content, $matches))
+ $text = trim($matches[1]);
+ elseif (preg_match('/^"(.*)"$/', $content, $matches))
+ $text = str_replace('\"', '"', $matches[1]);
+
+ return $text;
+ }
+
+ /**
+ * Escape special chars in string value
+ *
+ * @param string Text
+ */
+ private function _escape_string($content)
+ {
+ $replace['/"/'] = '\\"';
+
+ if (is_array($content))
+ {
+ for ($x=0, $y=sizeof($content); $x<$y; $x++)
+ $content[$x] = preg_replace(array_keys($replace), array_values($replace), $content[$x]);
+
+ return $content;
+ }
+ else
+ return preg_replace(array_keys($replace), array_values($replace), $content);
+ }
+
+ /**
+ * Parse string or list of strings to string or array of strings
+ *
+ * @param string Text
+ */
+ private function _parse_list($content)
+ {
+ $result = array();
+
+ for ($x=0, $len=strlen($content); $x<$len; $x++)
+ {
+ switch ($content[$x])
+ {
+ case '\\':
+ $str .= $content[++$x];
+ break;
+ case '"':
+ if (isset($str))
+ {
+ $result[] = $str;
+ unset($str);
+ }
+ else
+ $str = '';
+ break;
+ default:
+ if(isset($str))
+ $str .= $content[$x];
+ break;
+ }
+ }
+
+ if (sizeof($result)>1)
+ return $result;
+ elseif (sizeof($result) == 1)
+ return $result[0];
+ else
+ return NULL;
+ }
+
+ /**
+ * Convert array of elements to list of strings
+ *
+ * @param string Text
+ */
+ private function _print_list($list)
+ {
+ $list = (array) $list;
+ foreach($list as $idx => $val)
+ $list[$idx] = $this->_escape_string($val);
+
+ return '["' . implode('","', $list) . '"]';
+ }
+}
+
+?>
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-20 03:29:27 +0000