+global\iCal_parser::parse()

Complexity

Conditions	50
Paths	1365

Size

Total Lines

427

Duplication

Lines	14
Ratio	3.28 %

Importance

Changes

0

<?php
    public function parse($filename, $calendar_name)
    {
        $ifile = @fopen($filename, 'r');
        if ($ifile === false) {
            return "-1: File cannot open. filename: $filename";
        }
        $nextline = fgets($ifile, 1024);
        if (trim($nextline) !== 'BEGIN:VCALENDAR') {
            return "-2: This file is not iCalendar(RFC2445). filename: $filename";
        }

        // Set a value so we can check to make sure $master_array contains valid data
        // $master_array['-1'] = 'valid cal file';

        // Set default calendar name - can be overridden by X-WR-CALNAME
        // $calendar_name = $filename;
        // $master_array['calendar_name'] = $filename;

        // auxiliary array for determining overlaps of events
        //  $overlap_array = array ();

        // using $uid to set specific points in array, if $uid is not in the
        // .ics file, we need to have some unique place in the array
        $uid_counter = 0;

        // read file in line by line
        // XXX end line is skipped because of the 1-line readahead
        while (!feof($ifile)) {
            $line     = $nextline;
            $nextline = fgets($ifile, 1024);
            $nextline = preg_replace("/[\r\n]/", '', $nextline);
            while (substr($nextline, 0, 1) === ' ') {
                $line     .= substr($nextline, 1);
                $nextline = fgets($ifile, 1024);
                $nextline = preg_replace("/[\r\n]/", '', $nextline);
            }
            $line = trim($line);
            if ($line === 'BEGIN:VEVENT') {
                // each of these vars were being set to an empty string
                unset($start_time, $end_time, $start_date, $end_date, $summary, $allday_start, $allday_end, $start, $end, $the_duration, $beginning, $rrule, $start_of_vevent, $description, $status, $class, $categories, $contact, $location, $dtstamp, $sequence, $tz_dtstart, $tz_dtend, $event_tz, $valarm_description, $start_unixtime, $end_unixtime, $recurrence_id, $uid, $uid_valid);

                $except_dates   = array();

$except_dates is not used, you could remove the assignment.

                $except_times   = array();

$except_times is not used, you could remove the assignment.

                $first_duration = true;

$first_duration is not used, you could remove the assignment.

                $count          = 1000000;

$count is not used, you could remove the assignment.

                $valarm_set     = false;

$valarm_set is not used, you could remove the assignment.

            } elseif ($line === 'END:VEVENT') {
                // make sure we have some value for $uid
                if (!isset($uid)) {
                    $uid = $uid_counter;
                    ++$uid_counter;
                    $uid_valid = false;
                } else {
                    $uid_valid = true;
                }

                if (empty($summary)) {
                    $summary = '';
                }
                if (empty($description)) {
                    $description = '';
                }
                if (empty($location)) {
                    $location = '';
                }
                if (empty($contact)) {
                    $contact = '';
                }
                if (empty($sequence)) {
                    $sequence = 0;
                }
                if (empty($rrule)) {
                    $rrule = '';
                }

                // Handling of the all day events¡ÊÁ´Æü¥¤¥Ù¥ó¥È¡Ë
                if (isset($allday_start) && $allday_start !== '') {
                    $start_unixtime = strtotime($allday_start);
                    if (isset($allday_end) && $allday_end !== '') {
                        $end_unixtime = strtotime($allday_end);
                        if ($start_unixtime == $end_unixtime) {
                            $end_unixtime = $start_unixtime + 86400;
                        }
                    } else {
                        // allday_end ¤Î»ØÄ꤬¤Ê¤±¤ì¤Ð°ìÆü¤Î¤ß¤È¸«¤Ê¤¹
                        $end_unixtime = $start_unixtime + 86400;
                    }
                }

                $this->events[$uid] = compact('start_unixtime', 'end_unixtime', 'summary', 'description', 'status', 'class', 'categories', 'contact', 'location', 'dtstamp', 'sequence', 'allday_start',
                                              'allday_end', 'tz_dtstart', 'tz_dtend', 'event_tz', 'rrule', 'uid_valid');    // GIJ added 03/05/27

                // Begin VTODO Support
                /*      } elseif ($line == 'END:VTODO') {
                            if ((!$vtodo_priority) && ($status == 'COMPLETED')) {
                                $vtodo_sort = 11;
                            } elseif (!$vtodo_priority) {
                                $vtodo_sort = 10;
                            } else {
                                $vtodo_sort = $vtodo_priority;
                            }
                            $master_array['-2']["$vtodo_sort"]["$uid"] = array ('start_date' => $start_date, 'start_time' => $start_time, 'vtodo_text' => $summary, 'due_date'=> $due_date, 'due_time'=> $due_time, 'completed_date' => $completed_date, 'completed_time' => $completed_time, 'priority' => $vtodo_priority, 'status' => $status, 'class' => $class, 'categories' => $vtodo_categories);
                            unset ($due_date, $due_time, $completed_date, $completed_time, $vtodo_priority, $status, $class, $vtodo_categories, $summary);
                            $vtodo_set = FALSE;
                        } elseif ($line == 'BEGIN:VTODO') {
                            $vtodo_set = TRUE;
                        } elseif ($line == 'BEGIN:VALARM') {
                            $valarm_set = TRUE;
                        } elseif ($line == 'END:VALARM') {
                            $valarm_set = FALSE;
                */
            } else {
                unset($field, $data, $prop_pos, $property);
                preg_match('(/[^:]+):(.*)/', $line, $line);
                $field = $line[1];
                $data  = $line[2];

                $property = $field;
                $prop_pos = strpos($property, ';');
                if ($prop_pos !== false) {
                    $property = substr($property, 0, $prop_pos);
                }
                $property = strtoupper($property);

                switch ($property) {

                    // Start VTODO Parsing
                    //
                    /*              case 'DUE':
                                        $zulu_time = false;
                                        if (substr($data,-1) == 'Z') $zulu_time = true;
                                        $data = preg_replace('/T/', '', $data);
                                        $data = preg_replace('/Z/', '', $data);
                                        if (preg_match("/^DUE;VALUE=DATE/i", $field)) {
                                            $allday_start = $data;
                                            $start_date = $allday_start;
                                        } else {
                                            if (preg_match("/^DUE;TZID=/i", $field)) {
                                                $tz_tmp = explode('=', $field);
                                                $tz_due = $tz_tmp[1];
                                                unset($tz_tmp);
                                            } elseif ($zulu_time) {
                                                $tz_due = 'GMT';
                                            }

                                            preg_match('/([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{0,2})([0-9]{0,2})/', $data, $regs);
                                            $start_date = $regs[1] . $regs[2] . $regs[3];
                                            $start_time = $regs[4] . $regs[5];
                                            $start_unixtime = mktime($regs[4], $regs[5], 0, $regs[2], $regs[3], $regs[1]);

                                            $dlst = date('I', $start_unixtime);
                                            $server_offset_tmp = $this->chooseOffset($start_unixtime);
                                            if (isset($tz_due)) {
                                                if (array_key_exists($tz_due, $this->tz_array)) {
                                                    $offset_tmp = $this->tz_array[$tz_due][$dlst];
                                                } else {
                                                    $offset_tmp = '+0000';
                                                }
                                            } elseif (isset($calendar_tz)) {
                                                if (array_key_exists($calendar_tz, $this->tz_array)) {
                                                    $offset_tmp = $this->tz_array[$calendar_tz][$dlst];
                                                } else {
                                                    $offset_tmp = '+0000';
                                                }
                                            } else {
                                                $offset_tmp = $server_offset_tmp;
                                            }
                                            $start_unixtime = $this->calcTime($offset_tmp, $server_offset_tmp, $start_unixtime);
                                            $due_date = date('Ymd', $start_unixtime);
                                            $due_time = date('Hi', $start_unixtime);
                                            unset($server_offset_tmp);
                                        }
                                        break;
                    */
                    /*              case 'COMPLETED':
                                        $zulu_time = false;
                                        if (substr($data,-1) == 'Z') $zulu_time = true;
                                        $data = ereg_replace('T', '', $data);
                                        $data = ereg_replace('Z', '', $data);
                                        if (preg_match("/^COMPLETED;VALUE=DATE/i", $field)) {
                                            $allday_start = $data;
                                            $start_date = $allday_start;
                                        } else {
                                            if (preg_match("/^COMPLETED;TZID=/i", $field)) {
                                                $tz_tmp = explode('=', $field);
                                                $tz_completed = $tz_tmp[1];
                                                unset($tz_tmp);
                                            } elseif ($zulu_time) {
                                                $tz_completed = 'GMT';
                                            }

                                            ereg ('([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{0,2})([0-9]{0,2})', $data, $regs);
                                            $start_date = $regs[1] . $regs[2] . $regs[3];
                                            $start_time = $regs[4] . $regs[5];
                                            $start_unixtime = mktime($regs[4], $regs[5], 0, $regs[2], $regs[3], $regs[1]);

                                            $dlst = date('I', $start_unixtime);
                                            $server_offset_tmp = $this->chooseOffset($start_unixtime);
                                            if (isset($tz_completed)) {
                                                if (array_key_exists($tz_completed, $this->tz_array)) {
                                                    $offset_tmp = $this->tz_array[$tz_completed][$dlst];
                                                } else {
                                                    $offset_tmp = '+0000';
                                                }
                                            } elseif (isset($calendar_tz)) {
                                                if (array_key_exists($calendar_tz, $this->tz_array)) {
                                                    $offset_tmp = $this->tz_array[$calendar_tz][$dlst];
                                                } else {
                                                    $offset_tmp = '+0000';
                                                }
                                            } else {
                                                $offset_tmp = $server_offset_tmp;
                                            }
                                            $start_unixtime = $this->calcTime($offset_tmp, $server_offset_tmp, $start_unixtime);
                                            $completed_date = date('Ymd', $start_unixtime);
                                            $completed_time = date('Hi', $start_unixtime);
                                            unset($server_offset_tmp);
                                        }
                                        break;

                                    case 'PRIORITY':
                                        $vtodo_priority = "$data";
                                        break;
                    */
                    case 'STATUS':
                        // VEVENT: TENTATIVE, CONFIRMED, CANCELLED
                        // VTODO: NEEDS-ACTION, COMPLETED, IN-PROCESS, CANCELLED
                        $status = "$data";
                        break;

                    case 'CLASS':
                        // VEVENT, VTODO: PUBLIC, PRIVATE, CONFIDENTIAL
                        $class = "$data";
                        break;

                    case 'CATEGORIES':
                        $categories = mb_convert_encoding($data, mb_internal_encoding(), 'UTF-8');
                        break;
                    //
                    // End VTODO Parsing

                    case 'DTSTART':
                        $zulu_time = false;
                        if (substr($data, -1) === 'Z') {
                            $zulu_time = true;
                        }
                        $data  = preg_replace('/T/', '', $data);
                        $data  = preg_replace('/Z/', '', $data);
                        $field = preg_replace('/;VALUE=DATE-TIME/', '', $field);
                        if (preg_match('/^DTSTART;VALUE=DATE/i', $field)) {
                            $allday_start = $data;
                            $start_date   = $allday_start;
                        } else {
                            if (preg_match('/^DTSTART;TZID=/i', $field)) {

This code seems to be duplicated across your project.

                                $tz_tmp     = explode('=', $field);
                                $tz_dtstart = $tz_tmp[1];
                                unset($tz_tmp);
                            } elseif ($zulu_time) {
                                $tz_dtstart = 'GMT';
                            }

                            preg_match('/([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{0,2})([0-9]{0,2})/', $data, $regs);
                            $start_date     = $regs[1] . $regs[2] . $regs[3];

$start_date is not used, you could remove the assignment.

                            $start_time     = $regs[4] . $regs[5];

$start_time is not used, you could remove the assignment.

                            $start_unixtime = mktime($regs[4], $regs[5], 0, $regs[2], $regs[3], $regs[1]);

                            $dlst              = date('I', $start_unixtime);
                            $server_offset_tmp = $this->chooseOffset($start_unixtime);
                            if (isset($tz_dtstart)) {
                                if (array_key_exists($tz_dtstart, $this->tz_array)) {
                                    $offset_tmp = $this->tz_array[$tz_dtstart][$dlst];
                                } else {
                                    $offset_tmp = '+0000';
                                }
                            } elseif (isset($calendar_tz)) {
                                if (array_key_exists($calendar_tz, $this->tz_array)) {
                                    $offset_tmp = $this->tz_array[$calendar_tz][$dlst];
                                } else {
                                    $offset_tmp = '+0000';
                                }
                                $tz_dtstart = $calendar_tz; // GIJ added
                            } else {
                                $offset_tmp = $server_offset_tmp;
                            }
                            $start_unixtime = $this->calcTime($offset_tmp, $server_offset_tmp, $start_unixtime);
                            $event_tz       = $this->calcOffset($offset_tmp) / 3600;
                            $start_date     = date('Ymd', $start_unixtime);
                            $start_time     = date('Hi', $start_unixtime);
                            unset($server_offset_tmp);
                        }
                        break;

                    case 'DTEND':
                        $zulu_time = false;
                        if (substr($data, -1) === 'Z') {
                            $zulu_time = true;
                        }
                        $data  = preg_replace('/T/', '', $data);
                        $data  = preg_replace('/Z/', '', $data);
                        $field = preg_replace('/;VALUE=DATE-TIME/', '', $field);
                        if (preg_match('/^DTEND;VALUE=DATE/i', $field)) {
                            $allday_end = $data;
                        } else {
                            if (preg_match('/^DTEND;TZID=/i', $field)) {

This code seems to be duplicated across your project.

                                $tz_tmp   = explode('=', $field);
                                $tz_dtend = $tz_tmp[1];
                                unset($tz_tmp);
                            } elseif ($zulu_time) {
                                $tz_dtend = 'GMT';
                            }

                            preg_match('/([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{0,2})([0-9]{0,2})/', $data, $regs);
                            $end_date     = $regs[1] . $regs[2] . $regs[3];

$end_date is not used, you could remove the assignment.

                            $end_time     = $regs[4] . $regs[5];

$end_time is not used, you could remove the assignment.

                            $end_unixtime = mktime($regs[4], $regs[5], 0, $regs[2], $regs[3], $regs[1]);

                            $dlst              = date('I', $end_unixtime);
                            $server_offset_tmp = $this->chooseOffset($end_unixtime);
                            if (isset($tz_dtend)) {
                                $offset_tmp = $this->tz_array[$tz_dtend][$dlst];
                            } elseif (isset($calendar_tz)) {
                                $offset_tmp = $this->tz_array[$calendar_tz][$dlst];
                                $tz_dtend   = $calendar_tz; // GIJ added
                            } else {
                                $offset_tmp = $server_offset_tmp;
                            }
                            $end_unixtime = $this->calcTime($offset_tmp, $server_offset_tmp, $end_unixtime);
                            if (!isset($event_tz)) {
                                $event_tz = $this->calcOffset($offset_tmp) / 3600;
                            }
                            $end_date = date('Ymd', $end_unixtime);
                            $end_time = date('Hi', $end_unixtime);
                            unset($server_offset_tmp);
                        }
                        break;

                    /*              case 'EXDATE':
                                        $data = explode(",", $data);
                                        foreach ($data as $exdata) {
                                            $exdata = preg_replace('/T/', '', $exdata);
                                            $exdata = preg_replace('/Z/', '', $exdata);
                                            preg_match ('/([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{0,2})([0-9]{0,2})/', $exdata, $regs);
                                            $except_dates[] = $regs[1] . $regs[2] . $regs[3];
                                            $except_times[] = $regs[4] . $regs[5];
                                        }
                                        break;
                    */
                    case 'SUMMARY':
                        $summary = mb_convert_encoding($data, mb_internal_encoding(), 'UTF-8');
                        break;

                    case 'DESCRIPTION':
                        $description = mb_convert_encoding($data, mb_internal_encoding(), 'UTF-8');
                        break;

                    case 'CONTACT':
                        // RFC2445 4.8.4.2  GIJ added
                        $contact = mb_convert_encoding($data, mb_internal_encoding(), 'UTF-8');
                        break;

                    case 'LOCATION':
                        // RFC2445 4.8.1.7  GIJ added
                        $location = mb_convert_encoding($data, mb_internal_encoding(), 'UTF-8');
                        break;

                    case 'DTSTAMP':
                        // RFC2445 4.8.7.2  GIJ added
                        $data    = str_replace('T', '', $data);
                        $dtstamp = str_replace('Z', '', $data);
                        break;

                    case 'SEQUENCE':
                        // RFC2445 4.8.7.4  GIJ added
                        $sequence = (int)$data;
                        break;

                    case 'UID':
                        $uid = $data;
                        break;

                    case 'X-WR-CALNAME':
                        $calendar_name = mb_convert_encoding($data, mb_internal_encoding(), 'UTF-8');
                        break;

                    case 'X-WR-TIMEZONE':
                        $calendar_tz = $data;
                        break;

                    /*              case 'DURATION':
                                        if (($first_duration === true) && (!stristr($field, '=DURATION'))) {
                                            preg_match('/^P([0-9]{1,2})?([W,D]{0,1}[T])?([0-9]{1,2}[H])?([0-9]{1,2}[M])?([0-9]{1,2}[S])?/', $data, $duration);
                                            if ($duration[2] = 'W') {
                                                $weeks = $duration[1];
                                                $days = 0;
                                            } else {
                                                $days = $duration[1];
                                                $weeks = 0;
                                            }
                                            $hours = preg_replace('/H/', '', $duration[3]);
                                            $minutes = preg_replace('/M/', '', $duration[4]);
                                            $seconds = preg_replace('/S/', '', $duration[5]);
                                            $the_duration = ($weeks * 60 * 60 * 24 * 7) + ($days * 60 * 60 * 24) + ($hours * 60 * 60) + ($minutes * 60) + ($seconds);
                                            $end_unixtime = $start_unixtime + $the_duration;
                                            $end_time = date ('Hi', $end_unixtime);
                                            $first_duration = FALSE;
                                        }
                                        break;
                    */
                    case 'RRULE':
                        $rrule = strtoupper($data);
                        break;

                    /*              case 'ATTENDEE':
                                        $attendee = $data;
                                        break;
                    */
                }
            }
        }

        //If you want to see the values in the arrays, uncomment below.
        //print '<pre>';
        //print_r($this->events);
        //print_r($rrule);
        //print '</pre>';
        return "0: $calendar_name :";
    }