3 * Background receive function for phiMail Direct Messaging service.
5 * This script is called by the background service manager
6 * at /library/ajax/execute_background_services.php
8 * Copyright (C) 2013 EMR Direct <http://www.emrdirect.com/>
10 * LICENSE: This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://opensource.org/licenses/gpl-license.php>;.
22 * @author EMR Direct <http://www.emrdirect.com/>
23 * @link http://www.open-emr.org
26 require_once(dirname(__FILE__) . "/log.inc");
27 require_once(dirname(__FILE__) . "/pnotes.inc");
28 require_once(dirname(__FILE__) . "/documents.php");
29 require_once(dirname(__FILE__) . "/gprelations.inc.php");
32 * Connect to a phiMail Direct Messaging server
35 function phimail_connect(&$phimail_error)
38 if ($GLOBALS['phimail_enable'] == false) {
39 $phimail_error = 'C1';
40 return false; //for safety
43 $phimail_server = @parse_url($GLOBALS['phimail_server_address']);
44 $phimail_username = $GLOBALS['phimail_username'];
45 $phimail_password = $GLOBALS['phimail_password'];
46 $phimail_cafile = dirname(__FILE__) . '/../sites/' . $_SESSION['site_id']
47 . '/documents/phimail_server_pem/phimail_server.pem';
48 if (!file_exists($phimail_cafile)) {
52 $phimail_secure = true;
53 switch ($phimail_server['scheme']) {
56 $server = "tcp://".$phimail_server['host'];
57 $phimail_secure = false;
60 $server = "ssl://" . $phimail_server['host']
61 . ':' . $phimail_server['port'];
66 $server = $GLOBALS['phimail_server_address'];
69 $phimail_error = 'C2';
73 if ($phimail_secure) {
74 $context = stream_context_create();
75 if ($phimail_cafile != '' &&
76 (!stream_context_set_option($context, 'ssl', 'verify_peer', true) ||
77 !stream_context_set_option($context, 'ssl', 'cafile', $phimail_cafile))) {
78 $phimail_error = 'C3';
84 while ($socket_tries < 3 && !$fp) {
86 $fp = @stream_socket_client(
91 STREAM_CLIENT_CONNECT,
98 $err2 = xl('Server may be offline');
102 $err2 = xl('Connection error');
105 $phimail_error = "C4 $err1 ($err2)";
108 $fp = @fsockopen($server, $phimail_server['port']);
115 * Connect to a phiMail Direct Messaging server and check for any incoming status
116 * messages related to previously transmitted messages or any new messages received.
119 function phimail_check()
121 $fp = phimail_connect($err);
123 phimail_logit(0, xl('could not connect to server').' '.$err);
127 $phimail_username = $GLOBALS['phimail_username'];
128 $phimail_password = $GLOBALS['phimail_password'];
130 $ret = phimail_write_expect_OK($fp, "AUTH $phimail_username $phimail_password\n");
132 phimail_logit(0, "authentication error " . $ret);
136 if (!($notifyUsername = $GLOBALS['phimail_notify'])) {
137 $notifyUsername='admin'; //fallback
141 phimail_write($fp, "CHECK\n");
142 $ret=fgets($fp, 512);
144 if ($ret=="NONE\n") { //nothing to process
146 phimail_logit(1, "message check completed");
148 } else if (substr($ret, 0, 6)=="STATUS") {
149 //Format STATUS message-id status-code [additional-information]
150 $val=explode(" ", trim($ret), 4);
151 $sql='SELECT * from direct_message_log WHERE msg_id = ?';
152 $res = sqlStatementNoLog($sql, array($val[1]));
153 if ($res===false) { //database problem
155 phimail_logit(0, "database problem");
159 if (($msg=sqlFetchArray($res))===false) {
160 //no match, so log it and move on (should never happen)
161 phimail_logit(0, "NO MATCH: ".$ret);
162 $ret = phimail_write_expect_OK($fp, "OK\n");
170 //if we get here, $msg contains the matching outgoing message record
171 if ($val[2]=='failed') {
174 } else if ($val[2]=='dispatched') {
178 //unrecognized status, log it and move on (should never happen)
179 $ret = "UNKNOWN STATUS: ".$ret;
184 phimail_logit($success, $ret, $msg['patient_id']);
186 if (!isset($val[3])) {
190 $sql = "UPDATE direct_message_log SET status=?, status_ts=NOW(), status_info=? WHERE msg_type='S' AND msg_id=?";
191 $res = sqlStatementNoLog($sql, array($status,$val[3],$val[1]));
192 if ($res===false) { //database problem
194 phimail_logit(0, "database problem updating: ".$val[1]);
199 //notify local user of failure
200 $sql = "SELECT username FROM users WHERE id = ?";
201 $res2 = sqlStatementNoLog($sql, array($msg['user_id']));
202 $fail_user = ($res2 === false || ($user_row = sqlFetchArray($res2)) === false) ?
203 xl('unknown (see log)') : $user_row['username'];
204 $fail_notice = xl('Sent by:') . ' ' . $fail_user . '(' . $msg['user_id'] . ') ' . xl('on') . ' ' . $msg['create_ts']
205 . "\n" . xl('Sent to:') . ' ' . $msg['recipient'] . "\n" . xl('Server message:') . ' ' . $ret;
206 phimail_notify(xl('Direct Messaging Send Failure.'), $fail_notice);
207 $pnote_id = addPnote(
209 xl("FAILURE NOTICE: Direct Message Send Failed.") . "\n\n$fail_notice\n",
220 //done with this status message
221 $ret = phimail_write_expect_OK($fp, "OK\n");
226 } else if (substr($ret, 0, 4)=="MAIL") {
227 $val = explode(" ", trim($ret), 5); // MAIL recipient sender #attachments msg-id
233 //request main message
234 $ret2 = phimail_write_expect_OK($fp, "SHOW 0\n");
240 //get message headers
242 while (($next_hdr = fgets($fp, 1024)) != "\n") {
246 $mime_type=fgets($fp, 512);
247 $mime_info=explode(";", $mime_type);
248 $mime_type_main=strtolower($mime_info[0]);
250 //get main message body
251 $body_len=fgets($fp, 256);
252 $body=phimail_read_blob($fp, $body_len);
258 $att2=fgets($fp, 256);
259 if ($att2!=$att) { //safety for mismatch on attachments
264 //get attachment info
266 for ($attnum=0; $attnum<$att; $attnum++) {
267 if (($attinfo[$attnum]['name']=fgets($fp, 1024)) === false
268 || ($attinfo[$attnum]['mime']=fgets($fp, 1024)) === false
269 || ($attinfo[$attnum]['desc']=fgets($fp, 1024)) === false) {
276 //main part gets stored as document if not plain text content
277 //(if plain text it will be the body of the final pnote)
278 $all_doc_ids = array();
281 if ($mime_type_main != "text/plain") {
282 $name = uniqid("dm-message-") . phimail_extension($mime_type_main);
283 $doc_id = phimail_store($name, $mime_type_main, $body);
289 $idnum=$doc_id['doc_id'];
290 $all_doc_ids[] = $idnum;
292 $url=substr($url, strrpos($url, "/")+1);
293 $att_detail = "\n" . xl("Document") . " $idnum (\"$url\"; $mime_type_main; " .
294 filesize($body) . " bytes) Main message body";
297 //download and store attachments
298 for ($attnum=0; $attnum<$att; $attnum++) {
299 $ret2 = phimail_write_expect_OK($fp, "SHOW " . ($attnum+1) . "\n");
305 //we can ignore next two lines (repeat of name and mime-type)
306 if (($a1=fgets($fp, 512))===false || ($a2=fgets($fp, 512))===false) {
311 $att_len = fgets($fp, 256); //length of file
312 $attdata = phimail_read_blob($fp, $att_len);
313 if ($attdata===false) {
318 $attinfo[$attnum]['file']=$attdata;
320 $req_name = trim($attinfo[$attnum]['name']);
321 $req_name = (empty($req_name) ? $attdata : "dm-") . $req_name;
322 $attinfo[$attnum]['mime'] = explode(";", trim($attinfo[$attnum]['mime']));
323 $attmime = strtolower($attinfo[$attnum]['mime'][0]);
324 $att_doc_id = phimail_store($req_name, $attmime, $attdata);
330 $attinfo[$attnum]['doc_id']=$att_doc_id;
331 $idnum=$att_doc_id['doc_id'];
332 $all_doc_ids[] = $idnum;
333 $url=$att_doc_id['url'];
334 $url=substr($url, strrpos($url, "/")+1);
335 $att_detail = $att_detail . "\n" . xl("Document") . " $idnum (\"$url\"; $attmime; " .
336 filesize($attdata) . " bytes) " . trim($attinfo[$attnum]['desc']);
339 if ($att_detail != "") {
340 $att_detail = "\n\n" . xl("The following documents were attached to this Direct message:") . $att_detail;
343 $ret2 = phimail_write_expect_OK($fp, "DONE\n"); //we'll check for failure after logging.
345 //logging only after succesful download, storage, and acknowledgement of message
346 $sql = "INSERT INTO direct_message_log (msg_type,msg_id,sender,recipient,status,status_ts,user_id) " .
347 "VALUES ('R', ?, ?, ?, 'R', NOW(), ?)";
348 $res = sqlStatementNoLog($sql, array($msg_id,$sender,$recipient,phimail_service_userID()));
350 phimail_logit(1, $ret);
352 //alert appointed user about new message
353 switch ($mime_type_main) {
355 $body_text = @file_get_contents($body); //this was not uploaded as a document
357 $pnote_id = addPnote(
359 xl("Direct Message Received.") . "\n$hdrs\n$body_text$att_detail",
371 $note = xl("Direct Message Received.") . "\n$hdrs\n"
372 . xl("Message content is not plain text so it has been stored as a document.") . $att_detail;
373 $pnote_id = addPnote(0, $note, 0, 1, "Unassigned", $notifyUsername, "", "New", "phimail-service");
377 foreach ($all_doc_ids as $doc_id) {
378 setGpRelation(1, $doc_id, 6, $pnote_id);
385 } else { //unrecognized or FAIL response
386 phimail_logit(0, "problem checking messages " . $ret);
396 function phimail_write($fp, $text)
402 function phimail_write_expect_OK($fp, $text)
404 phimail_write($fp, $text);
405 $ret = fgets($fp, 256);
406 if ($ret!="OK\n") { //unexpected error
414 function phimail_close($fp)
416 fwrite($fp, "BYE\n");
421 function phimail_logit($success, $text, $pid = 0, $event = "direct-message-check")
423 newEvent($event, "phimail-service", 0, $success, $text, $pid);
427 * Read a blob of data into a local temporary file
428 * @param $len number of bytes to read
429 * @return the temp filename, or FALSE if failure
431 function phimail_read_blob($fp, $len)
434 $fpath=$GLOBALS['temporary_files_dir'];
435 if (!@file_exists($fpath)) {
439 $name = uniqid("direct-");
440 $fn = $fpath . "/" . $name . ".dat";
442 while (file_exists($fn)) {
443 $fn = $fpath . "/" . $name . "." . $dup++ . ".dat";
446 $ff = @fopen($fn, "w");
453 while (!feof($fp) && $bytes_left>0) {
454 if ($bytes_left < $chunk_size) {
455 $chunk_size = $bytes_left;
458 $chunk = fread($fp, $chunk_size);
459 if ($chunk===false || @fwrite($ff, $chunk)===false) {
465 $bytes_left -= strlen($chunk);
473 * Return a suitable filename extension based on MIME-type
474 * (very limited, default is .dat)
476 function phimail_extension($mime)
478 $m=explode("/", $mime);
495 function phimail_service_userID($name = 'phimail-service')
497 $sql = "SELECT id FROM users WHERE username=?";
498 if (($r = sqlStatementNoLog($sql, array($name))) === false ||
499 ($u = sqlFetchArray($r)) === false) {
500 $user=1; //default if we don't have a service user
510 * Registers an attachment or non-text message file using the existing Document structure
511 * @return Array(doc_id,URL) of the file as stored in documents table, false = failure
513 function phimail_store($name, $mime_type, $fn)
516 // Collect phimail user id
517 $user = phimail_service_userID();
519 // Import the document
520 $return = addNewDocument($name, $mime_type, $fn, 0, filesize($fn), $user, 'direct');
522 // Remove the temporary file
530 * Send an error notification or other alert to the notification address specified in globals.
531 * (notification email function modified from interface/drugs/dispense_drug.php)
532 * @return true if notification successfully sent, false otherwise
534 function phimail_notify($subj, $body)
536 $recipient = $GLOBALS['practice_return_email_path'];
537 if (empty($recipient)) {
541 $mail = new PHPMailer();
542 $mail->From = $recipient;
543 $mail->FromName = 'phiMail Gateway';
545 $mail->Host = "localhost";
546 $mail->Mailer = "mail";
548 $mail->Subject = $subj;
549 $mail->AddAddress($recipient);
550 return ($mail->Send());