+
+ return $iri;
+ }
+
+ private static function saveReplace($pattern, $replace, $text)
+ {
+ $save = $text;
+
+ $text = preg_replace($pattern, $replace, $text);
+
+ if ($text == '') {
+ $text = $save;
+ }
+ return $text;
+ }
+
+ private static function unifyAttributionLine($message)
+ {
+ $quotestr = ['quote', 'spoiler'];
+ foreach ($quotestr as $quote) {
+ $message = self::saveReplace('/----- Original Message -----\s.*?From: "([^<"].*?)" <(.*?)>\s.*?To: (.*?)\s*?Cc: (.*?)\s*?Sent: (.*?)\s.*?Subject: ([^\n].*)\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+ $message = self::saveReplace('/----- Original Message -----\s.*?From: "([^<"].*?)" <(.*?)>\s.*?To: (.*?)\s*?Sent: (.*?)\s.*?Subject: ([^\n].*)\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+
+ $message = self::saveReplace('/-------- Original-Nachricht --------\s*\['.$quote.'\]\nDatum: (.*?)\nVon: (.*?) <(.*?)>\nAn: (.*?)\nBetreff: (.*?)\n/i', "[".$quote."='$2']\n", $message);
+ $message = self::saveReplace('/-------- Original-Nachricht --------\s*\['.$quote.'\]\sDatum: (.*?)\s.*Von: "([^<"].*?)" <(.*?)>\s.*An: (.*?)\n.*/i', "[".$quote."='$2']\n", $message);
+ $message = self::saveReplace('/-------- Original-Nachricht --------\s*\['.$quote.'\]\nDatum: (.*?)\nVon: (.*?)\nAn: (.*?)\nBetreff: (.*?)\n/i', "[".$quote."='$2']\n", $message);
+
+ $message = self::saveReplace('/-----Urspr.*?ngliche Nachricht-----\sVon: "([^<"].*?)" <(.*?)>\s.*Gesendet: (.*?)\s.*An: (.*?)\s.*Betreff: ([^\n].*?).*:\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+ $message = self::saveReplace('/-----Urspr.*?ngliche Nachricht-----\sVon: "([^<"].*?)" <(.*?)>\s.*Gesendet: (.*?)\s.*An: (.*?)\s.*Betreff: ([^\n].*?)\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+
+ $message = self::saveReplace('/Am (.*?), schrieb (.*?):\s*\['.$quote.'\]/i', "[".$quote."='$2']\n", $message);
+
+ $message = self::saveReplace('/Am .*?, \d+ .*? \d+ \d+:\d+:\d+ \+\d+\sschrieb\s(.*?)\s<(.*?)>:\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+
+ $message = self::saveReplace('/Am (.*?) schrieb (.*?) <(.*?)>:\s*\['.$quote.'\]/i', "[".$quote."='$2']\n", $message);
+ $message = self::saveReplace('/Am (.*?) schrieb <(.*?)>:\s*\['.$quote.'\]/i', "[".$quote."='$2']\n", $message);
+ $message = self::saveReplace('/Am (.*?) schrieb (.*?):\s*\['.$quote.'\]/i', "[".$quote."='$2']\n", $message);
+ $message = self::saveReplace('/Am (.*?) schrieb (.*?)\n(.*?):\s*\['.$quote.'\]/i', "[".$quote."='$2']\n", $message);
+
+ $message = self::saveReplace('/(\d+)\/(\d+)\/(\d+) ([^<"].*?) <(.*?)>\s*\['.$quote.'\]/i', "[".$quote."='$4']\n", $message);
+
+ $message = self::saveReplace('/On .*?, \d+ .*? \d+ \d+:\d+:\d+ \+\d+\s(.*?)\s<(.*?)>\swrote:\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+
+ $message = self::saveReplace('/On (.*?) at (.*?), (.*?)\s<(.*?)>\swrote:\s*\['.$quote.'\]/i', "[".$quote."='$3']\n", $message);
+ $message = self::saveReplace('/On (.*?)\n([^<].*?)\s<(.*?)>\swrote:\s*\['.$quote.'\]/i', "[".$quote."='$2']\n", $message);
+ $message = self::saveReplace('/On (.*?), (.*?), (.*?)\s<(.*?)>\swrote:\s*\['.$quote.'\]/i', "[".$quote."='$3']\n", $message);
+ $message = self::saveReplace('/On ([^,].*?), (.*?)\swrote:\s*\['.$quote.'\]/i', "[".$quote."='$2']\n", $message);
+ $message = self::saveReplace('/On (.*?), (.*?)\swrote\s*\['.$quote.'\]/i', "[".$quote."='$2']\n", $message);
+
+ // Der loescht manchmal den Body - was eigentlich unmoeglich ist
+ $message = self::saveReplace('/On (.*?),(.*?),(.*?),(.*?), (.*?) wrote:\s*\['.$quote.'\]/i', "[".$quote."='$5']\n", $message);
+
+ $message = self::saveReplace('/Zitat von ([^<].*?) <(.*?)>:\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+
+ $message = self::saveReplace('/Quoting ([^<].*?) <(.*?)>:\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+
+ $message = self::saveReplace('/From: "([^<"].*?)" <(.*?)>\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+ $message = self::saveReplace('/From: <(.*?)>\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+
+ $message = self::saveReplace('/Du \(([^)].*?)\) schreibst:\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+
+ $message = self::saveReplace('/--- (.*?) <.*?> schrieb am (.*?):\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+ $message = self::saveReplace('/--- (.*?) schrieb am (.*?):\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+
+ $message = self::saveReplace('/\* (.*?) <(.*?)> hat geschrieben:\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+
+ $message = self::saveReplace('/(.*?) <(.*?)> schrieb (.*?)\):\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+ $message = self::saveReplace('/(.*?) <(.*?)> schrieb am (.*?) um (.*):\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+ $message = self::saveReplace('/(.*?) schrieb am (.*?) um (.*):\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+ $message = self::saveReplace('/(.*?) \((.*?)\) schrieb:\s*\['.$quote.'\]/i', "[".$quote."='$2']\n", $message);
+ $message = self::saveReplace('/(.*?) schrieb:\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+
+ $message = self::saveReplace('/(.*?) <(.*?)> writes:\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+ $message = self::saveReplace('/(.*?) \((.*?)\) writes:\s*\['.$quote.'\]/i', "[".$quote."='$2']\n", $message);
+ $message = self::saveReplace('/(.*?) writes:\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+
+ $message = self::saveReplace('/\* (.*?) wrote:\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+ $message = self::saveReplace('/(.*?) wrote \(.*?\):\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+ $message = self::saveReplace('/(.*?) wrote:\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+
+ $message = self::saveReplace('/([^<].*?) <.*?> hat am (.*?)\sum\s(.*)\sgeschrieben:\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+
+ $message = self::saveReplace('/(\d+)\/(\d+)\/(\d+) ([^<"].*?) <(.*?)>:\s*\['.$quote.'\]/i', "[".$quote."='$4']\n", $message);
+ $message = self::saveReplace('/(\d+)\/(\d+)\/(\d+) (.*?) <(.*?)>\s*\['.$quote.'\]/i', "[".$quote."='$4']\n", $message);
+ $message = self::saveReplace('/(\d+)\/(\d+)\/(\d+) <(.*?)>:\s*\['.$quote.'\]/i', "[".$quote."='$4']\n", $message);
+ $message = self::saveReplace('/(\d+)\/(\d+)\/(\d+) <(.*?)>\s*\['.$quote.'\]/i', "[".$quote."='$4']\n", $message);
+
+ $message = self::saveReplace('/(.*?) <(.*?)> schrubselte:\s*\['.$quote.'\]/i', "[".$quote."='$1']\n", $message);
+ $message = self::saveReplace('/(.*?) \((.*?)\) schrubselte:\s*\['.$quote.'\]/i', "[".$quote."='$2']\n", $message);
+ }
+ return $message;
+ }
+
+ private static function removeGPG($message)
+ {
+ $pattern = '/(.*)\s*-----BEGIN PGP SIGNED MESSAGE-----\s*[\r\n].*Hash:.*?[\r\n](.*)'.
+ '[\r\n]\s*-----BEGIN PGP SIGNATURE-----\s*[\r\n].*'.
+ '[\r\n]\s*-----END PGP SIGNATURE-----(.*)/is';
+
+ if (preg_match($pattern, $message, $result)) {
+ $cleaned = trim($result[1].$result[2].$result[3]);
+
+ $cleaned = str_replace(["\n- --\n", "\n- -"], ["\n-- \n", "\n-"], $cleaned);
+ } else {
+ $cleaned = $message;
+ }
+
+ return $cleaned;
+ }
+
+ private static function removeSig($message)
+ {
+ $sigpos = strrpos($message, "\n-- \n");
+ $quotepos = strrpos($message, "[/quote]");
+
+ if ($sigpos == 0) {
+ // Especially for web.de who are using that as a separator
+ $message = str_replace("\n___________________________________________________________\n", "\n-- \n", $message);
+ $sigpos = strrpos($message, "\n-- \n");
+ $quotepos = strrpos($message, "[/quote]");
+ }
+
+ // When the signature separator is inside a quote, we don't separate
+ if (($sigpos < $quotepos) && ($sigpos != 0)) {
+ return ['body' => $message, 'sig' => ''];
+ }
+
+ $pattern = '/(.*)[\r\n]-- [\r\n](.*)/is';
+
+ preg_match($pattern, $message, $result);
+
+ if (!empty($result[1]) && !empty($result[2])) {
+ $cleaned = trim($result[1])."\n";
+ $sig = trim($result[2]);
+ } else {
+ $cleaned = $message;
+ $sig = '';
+ }
+
+ return ['body' => $cleaned, 'sig' => $sig];
+ }
+
+ private static function removeLinebreak($message)
+ {
+ $arrbody = explode("\n", trim($message));
+
+ $lines = [];
+ $lineno = 0;
+
+ foreach ($arrbody as $i => $line) {
+ $currquotelevel = 0;
+ $currline = $line;
+ while ((strlen($currline)>0) && ((substr($currline, 0, 1) == '>')
+ || (substr($currline, 0, 1) == ' '))) {
+ if (substr($currline, 0, 1) == '>') {
+ $currquotelevel++;
+ }
+
+ $currline = ltrim(substr($currline, 1));
+ }
+
+ $quotelevel = 0;
+ $nextline = trim(defaults($arrbody, $i + 1, ''));
+ while ((strlen($nextline)>0) && ((substr($nextline, 0, 1) == '>')
+ || (substr($nextline, 0, 1) == ' '))) {
+ if (substr($nextline, 0, 1) == '>') {
+ $quotelevel++;
+ }
+
+ $nextline = ltrim(substr($nextline, 1));
+ }
+
+ if (!empty($lines[$lineno])) {
+ if (substr($lines[$lineno], -1) != ' ') {
+ $lines[$lineno] .= ' ';
+ }
+
+ while ((strlen($line)>0) && ((substr($line, 0, 1) == '>')
+ || (substr($line, 0, 1) == ' '))) {
+
+ $line = ltrim(substr($line, 1));
+ }
+ } else {
+ $lines[$lineno] = '';
+ }
+
+ $lines[$lineno] .= $line;
+ if (((substr($line, -1, 1) != ' '))
+ || ($quotelevel != $currquotelevel)) {
+ $lineno++;
+ }
+ }
+ return implode("\n", $lines);
+ }
+
+ private static function convertQuote($body, $reply)
+ {
+ // Convert Quotes
+ $arrbody = explode("\n", trim($body));
+ $arrlevel = [];
+
+ for ($i = 0; $i < count($arrbody); $i++) {
+ $quotelevel = 0;
+ $quoteline = $arrbody[$i];
+
+ while ((strlen($quoteline)>0) and ((substr($quoteline, 0, 1) == '>')
+ || (substr($quoteline, 0, 1) == ' '))) {
+ if (substr($quoteline, 0, 1) == '>')
+ $quotelevel++;
+
+ $quoteline = ltrim(substr($quoteline, 1));
+ }
+
+ $arrlevel[$i] = $quotelevel;
+ $arrbody[$i] = $quoteline;
+ }
+
+ $quotelevel = 0;
+ $arrbodyquoted = [];
+
+ for ($i = 0; $i < count($arrbody); $i++) {
+ $previousquote = $quotelevel;
+ $quotelevel = $arrlevel[$i];
+
+ while ($previousquote < $quotelevel) {
+ $quote = "[quote]";
+ $arrbody[$i] = $quote.$arrbody[$i];
+ $previousquote++;
+ }
+
+ while ($previousquote > $quotelevel) {
+ $arrbody[$i] = '[/quote]'.$arrbody[$i];
+ $previousquote--;
+ }
+
+ $arrbodyquoted[] = $arrbody[$i];
+ }
+ while ($quotelevel > 0) {
+ $arrbodyquoted[] = '[/quote]';
+ $quotelevel--;
+ }
+
+ $body = implode("\n", $arrbodyquoted);
+
+ if (strlen($body) > 0) {
+ $body = $body."\n\n";
+ }
+
+ if ($reply) {
+ $body = self::removeToFu($body);
+ }
+
+ return $body;
+ }
+
+ private static function removeToFu($message)
+ {
+ $message = trim($message);
+
+ do {
+ $oldmessage = $message;
+ $message = preg_replace('=\[/quote\][\s](.*?)\[quote\]=i', '$1', $message);
+ $message = str_replace("[/quote][quote]", "", $message);
+ } while ($message != $oldmessage);
+
+ $quotes = [];
+
+ $startquotes = 0;
+
+ $start = 0;
+
+ while (($pos = strpos($message, '[quote', $start)) > 0) {
+ $quotes[$pos] = -1;
+ $start = $pos + 7;
+ $startquotes++;
+ }
+
+ $endquotes = 0;
+ $start = 0;
+
+ while (($pos = strpos($message, '[/quote]', $start)) > 0) {
+ $start = $pos + 7;
+ $endquotes++;
+ }
+
+ while ($endquotes < $startquotes) {
+ $message .= '[/quote]';
+ ++$endquotes;
+ }
+
+ $start = 0;
+
+ while (($pos = strpos($message, '[/quote]', $start)) > 0) {
+ $quotes[$pos] = 1;
+ $start = $pos + 7;
+ }
+
+ if (strtolower(substr($message, -8)) != '[/quote]')
+ return($message);
+
+ krsort($quotes);
+
+ $quotelevel = 0;
+ $quotestart = 0;
+ foreach ($quotes as $index => $quote) {
+ $quotelevel += $quote;
+
+ if (($quotelevel == 0) and ($quotestart == 0))
+ $quotestart = $index;
+ }
+
+ if ($quotestart != 0) {
+ $message = trim(substr($message, 0, $quotestart))."\n[spoiler]".substr($message, $quotestart+7, -8).'[/spoiler]';
+ }
+
+ return $message;