Completed
Push — master ( f7ae30...f3ee5a )
by Jeroen
03:23
created

VCard::buildVCalendar()   B

Complexity

Conditions 1
Paths 1

Size

Total Lines 35
Code Lines 19

Duplication

Lines 0
Ratio 0 %

Importance

Changes 3
Bugs 0 Features 0
Metric Value
c 3
b 0
f 0
dl 0
loc 35
rs 8.8571
cc 1
eloc 19
nc 1
nop 0
1
<?php
2
3
namespace JeroenDesloovere\VCard;
4
5
/*
6
 * This file is part of the VCard PHP Class from Jeroen Desloovere.
7
 *
8
 * For the full copyright and license information, please view the license
9
 * file that was distributed with this source code.
10
 */
11
12
use Behat\Transliterator\Transliterator;
13
14
/**
15
 * VCard PHP Class to generate .vcard files and save them to a file or output as a download.
16
 *
17
 * @author Jeroen Desloovere <[email protected]>
18
 */
19
class VCard
20
{
21
    /**
22
     * definedElements
23
     *
24
     * @var array
25
     */
26
    private $definedElements;
27
28
    /**
29
     * Filename
30
     *
31
     * @var string
32
     */
33
    private $filename;
34
35
    /**
36
     * Multiple properties for element allowed
37
     *
38
     * @var array
39
     */
40
    private $multiplePropertiesForElementAllowed = array(
41
        'email',
42
        'address',
43
        'phoneNumber',
44
        'url'
45
    );
46
47
    /**
48
     * Properties
49
     *
50
     * @var array
51
     */
52
    private $properties;
53
54
    /**
55
     * Default Charset
56
     *
57
     * @var string
58
     */
59
    public $charset = 'utf-8';
60
61
    /**
62
     * Add address
63
     *
64
     * @param  string [optional] $name
65
     * @param  string [optional] $extended
66
     * @param  string [optional] $street
67
     * @param  string [optional] $city
68
     * @param  string [optional] $region
69
     * @param  string [optional] $zip
70
     * @param  string [optional] $country
71
     * @param  string [optional] $type
72
     *                                     $type may be DOM | INTL | POSTAL | PARCEL | HOME | WORK
73
     *                                     or any combination of these: e.g. "WORK;PARCEL;POSTAL"
74
     * @return $this
75
     */
76
    public function addAddress(
77
        $name = '',
78
        $extended = '',
79
        $street = '',
80
        $city = '',
81
        $region = '',
82
        $zip = '',
83
        $country = '',
84
        $type = 'WORK;POSTAL'
85
    ) {
86
        // init value
87
        $value = $name . ';' . $extended . ';' . $street . ';' . $city . ';' . $region . ';' . $zip . ';' . $country;
88
89
        // set property
90
        $this->setProperty(
91
            'address',
92
            'ADR' . (($type != '') ? ';' . $type : '') . $this->getCharsetString(),
93
            $value
94
        );
95
96
        return $this;
97
    }
98
99
    /**
100
     * Add birthday
101
     *
102
     * @param  string $date Format is YYYY-MM-DD
103
     * @return $this
104
     */
105
    public function addBirthday($date)
106
    {
107
        $this->setProperty(
108
            'birthday',
109
            'BDAY',
110
            $date
111
        );
112
113
        return $this;
114
    }
115
116
    /**
117
     * Add company
118
     *
119
     * @param  string $company
120
     * @return $this
121
     */
122
    public function addCompany($company)
123
    {
124
        $this->setProperty(
125
            'company',
126
            'ORG' . $this->getCharsetString(),
127
            $company
128
        );
129
130
        // if filename is empty, add to filename
131
        if ($this->getFilename() === null) {
132
            $this->setFilename($company);
133
        }
134
135
        return $this;
136
    }
137
138
    /**
139
     * Add email
140
     *
141
     * @param  string            $address The e-mail address
142
     * @param  string [optional] $type    The type of the email address
143
     *                                    $type may be  PREF | WORK | HOME
144
     *                                    or any combination of these: e.g. "PREF;WORK"
145
     * @return $this
146
     */
147
    public function addEmail($address, $type = '')
148
    {
149
        $this->setProperty(
150
            'email',
151
            'EMAIL;INTERNET' . (($type != '') ? ';' . $type : ''),
152
            $address
153
        );
154
155
        return $this;
156
    }
157
158
    /**
159
     * Add jobtitle
160
     *
161
     * @param  string $jobtitle The jobtitle for the person.
162
     * @return $this
163
     */
164
    public function addJobtitle($jobtitle)
165
    {
166
        $this->setProperty(
167
            'jobtitle',
168
            'TITLE' . $this->getCharsetString(),
169
            $jobtitle
170
        );
171
172
        return $this;
173
    }
174
175
    /**
176
     * Add role
177
     *
178
     * @param  string $role The role for the person.
179
     * @return $this
180
     */
181
    public function addRole($role)
182
    {
183
        $this->setProperty(
184
            'role',
185
            'ROLE' . $this->getCharsetString(),
186
            $role
187
        );
188
189
        return $this;
190
    }
191
192
    /**
193
     * Add a photo or logo (depending on property name)
194
     *
195
     * @param  string              $property LOGO|PHOTO
196
     * @param  string              $url      image url or filename
197
     * @param  bool                $include  Do we include the image in our vcard or not?
198
     * @throws VCardMediaException if file is empty or not an image file
199
     */
200
    private function addMedia($property, $url, $include = true, $element)
201
    {
202
        if ($include) {
203
            $value = file_get_contents($url);
204
205
            if (!$value) {
206
                throw new VCardMediaException('Nothing returned from URL.');
207
            }
208
209
            $value = base64_encode($value);
210
211
            $finfo = finfo_open(FILEINFO_MIME_TYPE);
212
            $mimetype = finfo_file($finfo, 'data://application/octet-stream;base64,' . $value);
213
            finfo_close($finfo);
214
215
            if (preg_match('/^image\//', $mimetype) !== 1) {
216
                throw new VCardMediaException('Returned data aren\'t an image.');
217
            }
218
219
            $type = strtoupper(str_replace('image/', '', $mimetype));
220
221
            $property .= ";ENCODING=b;TYPE=" . $type;
222
        } else {
223
            if (filter_var($url, FILTER_VALIDATE_URL) !== FALSE) {
224
                $propertySuffix = ';VALUE=URL';
225
226
                $headers = get_headers($url);
227
228
                $imageTypeMatched = false;
229
                $fileType = null;
230
231
                foreach ($headers as $header) {
232
                    if (preg_match('/Content-Type:\simage\/([a-z]+)/i', $header, $m)) {
233
                        $fileType = $m[1];
234
                        $imageTypeMatched = true;
235
                    }
236
                }
237
238
                if (!$imageTypeMatched) {
239
                    throw new VCardMediaException('Returned data isn\'t an image.');
240
                }
241
242
                $propertySuffix .= ';TYPE=' . strtoupper($fileType);
243
244
                $property = $property . $propertySuffix;
245
                $value = $url;
246
            } else {
247
                $value = $url;
248
            }
249
        }
250
251
        $this->setProperty(
252
            $element,
253
            $property,
254
            $value
255
        );
256
    }
257
258
    /**
259
     * Add name
260
     *
261
     * @param  string [optional] $lastName
262
     * @param  string [optional] $firstName
263
     * @param  string [optional] $additional
264
     * @param  string [optional] $prefix
265
     * @param  string [optional] $suffix
266
     * @return $this
267
     */
268
    public function addName(
269
        $lastName = '',
270
        $firstName = '',
271
        $additional = '',
272
        $prefix = '',
273
        $suffix = ''
274
    ) {
275
        // define values with non-empty values
276
        $values = array_filter(array(
277
            $prefix,
278
            $firstName,
279
            $additional,
280
            $lastName,
281
            $suffix,
282
        ));
283
284
        // define filename
285
        $this->setFilename($values);
286
287
        // set property
288
        $property = $lastName . ';' . $firstName . ';' . $additional . ';' . $prefix . ';' . $suffix;
289
        $this->setProperty(
290
            'name',
291
            'N' . $this->getCharsetString(),
292
            $property
293
        );
294
295
        // is property FN set?
296
        if (!$this->hasProperty('FN')) {
297
            // set property
298
            $this->setProperty(
299
                'fullname',
300
                'FN' . $this->getCharsetString(),
301
                trim(implode(' ', $values))
302
            );
303
        }
304
305
        return $this;
306
    }
307
308
    /**
309
     * Add note
310
     *
311
     * @param  string $note
312
     * @return $this
313
     */
314
    public function addNote($note)
315
    {
316
        $this->setProperty(
317
            'note',
318
            'NOTE' . $this->getCharsetString(),
319
            $note
320
        );
321
322
        return $this;
323
    }
324
325
    /**
326
     * Add phone number
327
     *
328
     * @param  string            $number
329
     * @param  string [optional] $type
330
     *                                   Type may be PREF | WORK | HOME | VOICE | FAX | MSG |
331
     *                                   CELL | PAGER | BBS | CAR | MODEM | ISDN | VIDEO
332
     *                                   or any senseful combination, e.g. "PREF;WORK;VOICE"
333
     * @return $this
334
     */
335
    public function addPhoneNumber($number, $type = '')
336
    {
337
        $this->setProperty(
338
            'phoneNumber',
339
            'TEL' . (($type != '') ? ';' . $type : ''),
340
            $number
341
        );
342
343
        return $this;
344
    }
345
346
    /**
347
     * Add Logo
348
     *
349
     * @param  string $url     image url or filename
350
     * @param  bool   $include Include the image in our vcard?
351
     * @return $this
352
     */
353
    public function addLogo($url, $include = true)
354
    {
355
        $this->addMedia(
356
            'LOGO',
357
            $url,
358
            $include,
359
            'logo'
360
        );
361
362
        return $this;
363
    }
364
365
    /**
366
     * Add Photo
367
     *
368
     * @param  string $url     image url or filename
369
     * @param  bool   $include Include the image in our vcard?
370
     * @return $this
371
     */
372
    public function addPhoto($url, $include = true)
373
    {
374
        $this->addMedia(
375
            'PHOTO',
376
            $url,
377
            $include,
378
            'photo'
379
        );
380
381
        return $this;
382
    }
383
384
    /**
385
     * Add URL
386
     *
387
     * @param  string            $url
388
     * @param  string [optional] $type Type may be WORK | HOME
389
     * @return $this
390
     */
391
    public function addURL($url, $type = '')
392
    {
393
        $this->setProperty(
394
            'url',
395
            'URL' . (($type != '') ? ';' . $type : ''),
396
            $url
397
        );
398
399
        return $this;
400
    }
401
402
    /**
403
     * Build VCard (.vcf)
404
     *
405
     * @return string
406
     */
407
    public function buildVCard()
408
    {
409
        // init string
410
        $string = "BEGIN:VCARD\r\n";
411
        $string .= "VERSION:3.0\r\n";
412
        $string .= "REV:" . date("Y-m-d") . "T" . date("H:i:s") . "Z\r\n";
413
414
        // loop all properties
415
        $properties = $this->getProperties();
416
        foreach ($properties as $property) {
417
            // add to string
418
            $string .= $this->fold($property['key'] . ':' . $this->escape($property['value']) . "\r\n");
419
        }
420
421
        // add to string
422
        $string .= "END:VCARD\r\n";
423
424
        // return
425
        return $string;
426
    }
427
428
    /**
429
     * Build VCalender (.ics) - Safari (< iOS 8) can not open .vcf files, so we have build a workaround.
430
     *
431
     * @return string
432
     */
433
    public function buildVCalendar()
434
    {
435
        // init dates
436
        $dtstart = date("Ymd") . "T" . date("Hi") . "00";
437
        $dtend = date("Ymd") . "T" . date("Hi") . "01";
438
439
        // init string
440
        $string = "BEGIN:VCALENDAR\n";
441
        $string .= "VERSION:2.0\n";
442
        $string .= "BEGIN:VEVENT\n";
443
        $string .= "DTSTART;TZID=Europe/London:" . $dtstart . "\n";
444
        $string .= "DTEND;TZID=Europe/London:" . $dtend . "\n";
445
        $string .= "SUMMARY:Click attached contact below to save to your contacts\n";
446
        $string .= "DTSTAMP:" . $dtstart . "Z\n";
447
        $string .= "ATTACH;VALUE=BINARY;ENCODING=BASE64;FMTTYPE=text/directory;\n";
448
        $string .= " X-APPLE-FILENAME=" . $this->getFilename() . "." . $this->getFileExtension() . ":\n";
449
450
        // base64 encode it so that it can be used as an attachemnt to the "dummy" calendar appointment
451
        $b64vcard = base64_encode($this->buildVCard());
452
453
        // chunk the single long line of b64 text in accordance with RFC2045
454
        // (and the exact line length determined from the original .ics file exported from Apple calendar
455
        $b64mline = chunk_split($b64vcard, 74, "\n");
456
457
        // need to indent all the lines by 1 space for the iphone (yes really?!!)
458
        $b64final = preg_replace('/(.+)/', ' $1', $b64mline);
459
        $string .= $b64final;
460
461
        // output the correctly formatted encoded text
462
        $string .= "END:VEVENT\n";
463
        $string .= "END:VCALENDAR\n";
464
465
        // return
466
        return $string;
467
    }
468
469
    /**
470
     * Returns the browser user agent string.
471
     *
472
     * @return string
473
     */
474
    protected function getUserAgent()
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Coding Style introduced by
getUserAgent uses the super-global variable $_SERVER which is generally not recommended.

Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable:

// Bad
class Router
{
    public function generate($path)
    {
        return $_SERVER['HOST'].$path;
    }
}

// Better
class Router
{
    private $host;

    public function __construct($host)
    {
        $this->host = $host;
    }

    public function generate($path)
    {
        return $this->host.$path;
    }
}

class Controller
{
    public function myAction(Request $request)
    {
        // Instead of
        $page = isset($_GET['page']) ? intval($_GET['page']) : 1;

        // Better (assuming you use the Symfony2 request)
        $page = $request->query->get('page', 1);
    }
}
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475
    {
476
        if (array_key_exists('HTTP_USER_AGENT', $_SERVER)) {
477
            $browser = strtolower($_SERVER['HTTP_USER_AGENT']);
478
        } else {
479
            $browser = 'unknown';
480
        }
481
482
        return $browser;
483
    }
484
485
    /**
486
     * Decode
487
     *
488
     * @param  string $value The value to decode
489
     * @return string decoded
490
     */
491
    private function decode($value)
492
    {
493
        // convert cyrlic, greek or other caracters to ASCII characters
494
        return Transliterator::transliterate($value);
495
    }
496
497
    /**
498
     * Download a vcard or vcal file to the browser.
499
     */
500
    public function download()
501
    {
502
        // define output
503
        $output = $this->getOutput();
504
505
        foreach ($this->getHeaders(false) as $header) {
506
            header($header);
507
        }
508
509
        // echo the output and it will be a download
510
        echo $output;
511
    }
512
513
    /**
514
     * Fold a line according to RFC2425 section 5.8.1.
515
     *
516
     * @link http://tools.ietf.org/html/rfc2425#section-5.8.1
517
     * @param  string $text
518
     * @return mixed
519
     */
520
    protected function fold($text)
521
    {
522
        if (strlen($text) <= 75) {
523
            return $text;
524
        }
525
526
        // split, wrap and trim trailing separator
527
        return substr(chunk_split($text, 73, "\r\n "), 0, -3);
528
    }
529
    
530
    /**
531
     * Escape newline characters according to RFC2425 section 5.8.4.
532
     *
533
     * @link http://tools.ietf.org/html/rfc2425#section-5.8.4
534
     * @param  string $text
535
     * @return string
536
     */
537
    protected function escape($text)
538
    {
539
        $text = str_replace("\r\n", "\\n", $text);
540
        $text = str_replace("\n", "\\n", $text);
541
        
542
        return $text;
543
    }
544
545
    /**
546
     * Get output as string
547
     * @deprecated in the future
548
     *
549
     * @return string
550
     */
551
    public function get()
552
    {
553
        return $this->getOutput();
554
    }
555
556
    /**
557
     * Get charset
558
     *
559
     * @return string
560
     */
561
    public function getCharset()
562
    {
563
        return $this->charset;
564
    }
565
566
    /**
567
     * Get charset string
568
     *
569
     * @return string
570
     */
571
    public function getCharsetString()
572
    {
573
        $charsetString = '';
574
        if ($this->charset == 'utf-8') {
575
            $charsetString = ';CHARSET=' . $this->charset;
576
        }
577
        return $charsetString;
578
    }
579
580
    /**
581
     * Get content type
582
     *
583
     * @return string
584
     */
585
    public function getContentType()
586
    {
587
        return ($this->isIOS7()) ?
588
            'text/x-vcalendar' : 'text/x-vcard';
589
    }
590
591
    /**
592
     * Get filename
593
     *
594
     * @return string
595
     */
596
    public function getFilename()
597
    {
598
        return $this->filename;
599
    }
600
601
    /**
602
     * Get file extension
603
     *
604
     * @return string
605
     */
606
    public function getFileExtension()
607
    {
608
        return ($this->isIOS7()) ?
609
            'ics' : 'vcf';
610
    }
611
612
    /**
613
     * Get headers
614
     *
615
     * @param  bool  $asAssociative
616
     * @return array
617
     */
618
    public function getHeaders($asAssociative)
619
    {
620
        $contentType        = $this->getContentType() . '; charset=' . $this->getCharset();
621
        $contentDisposition = 'attachment; filename=' . $this->getFilename() . '.' . $this->getFileExtension();
622
        $contentLength      = strlen($this->getOutput());
623
        $connection         = 'close';
624
625
        if ((bool) $asAssociative) {
626
            return array(
627
                'Content-type'        => $contentType,
628
                'Content-Disposition' => $contentDisposition,
629
                'Content-Length'      => $contentLength,
630
                'Connection'          => $connection,
631
            );
632
        }
633
634
        return array(
635
            'Content-type: ' . $contentType,
636
            'Content-Disposition: ' . $contentDisposition,
637
            'Content-Length: ' . $contentLength,
638
            'Connection: ' . $connection,
639
        );
640
    }
641
642
    /**
643
     * Get output as string
644
     * iOS devices (and safari < iOS 8 in particular) can not read .vcf (= vcard) files.
645
     * So I build a workaround to build a .ics (= vcalender) file.
646
     *
647
     * @return string
648
     */
649
    public function getOutput()
650
    {
651
        $output = ($this->isIOS7()) ?
652
            $this->buildVCalendar() : $this->buildVCard();
653
654
        return $output;
655
    }
656
657
    /**
658
     * Get properties
659
     *
660
     * @return array
661
     */
662
    public function getProperties()
663
    {
664
        return $this->properties;
665
    }
666
667
    /**
668
     * Has property
669
     *
670
     * @param  string $key
671
     * @return bool
672
     */
673
    public function hasProperty($key)
674
    {
675
        $properties = $this->getProperties();
676
677
        foreach ($properties as $property) {
678
            if ($property['key'] === $key && $property['value'] !== '') {
679
                return true;
680
            }
681
        }
682
683
        return false;
684
    }
685
686
    /**
687
     * Is iOS - Check if the user is using an iOS-device
688
     *
689
     * @return bool
690
     */
691
    public function isIOS()
692
    {
693
        // get user agent
694
        $browser = $this->getUserAgent();
695
696
        return (strpos($browser, 'iphone') || strpos($browser, 'ipod') || strpos($browser, 'ipad'));
697
    }
698
699
    /**
700
     * Is iOS less than 7 (should cal wrapper be returned)
701
     *
702
     * @return bool
703
     */
704
    public function isIOS7()
705
    {
706
        return ($this->isIOS() && $this->shouldAttachmentBeCal());
707
    }
708
709
    /**
710
     * Save to a file
711
     *
712
     * @return void
713
     */
714
    public function save()
715
    {
716
        $file = $this->getFilename() . '.' . $this->getFileExtension();
717
718
        file_put_contents(
719
            $file,
720
            $this->getOutput()
721
        );
722
    }
723
724
    /**
725
     * Set charset
726
     *
727
     * @param  mixed  $charset
728
     * @return void
729
     */
730
    public function setCharset($charset)
731
    {
732
        $this->charset = $charset;
733
    }
734
735
    /**
736
     * Set filename
737
     *
738
     * @param  mixed  $value
739
     * @param  bool   $overwrite [optional] Default overwrite is true
740
     * @param  string $separator [optional] Default separator is an underscore '_'
741
     * @return void
742
     */
743
    public function setFilename($value, $overwrite = true, $separator = '_')
744
    {
745
        // recast to string if $value is array
746
        if (is_array($value)) {
747
            $value = implode($separator, $value);
748
        }
749
750
        // trim unneeded values
751
        $value = trim($value, $separator);
752
753
        // remove all spaces
754
        $value = preg_replace('/\s+/', $separator, $value);
755
756
        // if value is empty, stop here
757
        if (empty($value)) {
758
            return;
759
        }
760
761
        // decode value + lowercase the string
762
        $value = strtolower($this->decode($value));
763
764
        // urlize this part
765
        $value = Transliterator::urlize($value);
766
767
        // overwrite filename or add to filename using a prefix in between
768
        $this->filename = ($overwrite) ?
769
            $value : $this->filename . $separator . $value;
770
    }
771
772
    /**
773
     * Set property
774
     *
775
     * @param  string $element The element name you want to set, f.e.: name, email, phoneNumber, ...
776
     * @param  string $key
777
     * @param  string $value
778
     * @return void
779
     */
780
    private function setProperty($element, $key, $value)
781
    {
782
        if (!in_array($element, $this->multiplePropertiesForElementAllowed)
783
            && isset($this->definedElements[$element])
784
        ) {
785
            throw new Exception('You can only set "' . $element . '" once.');
786
        }
787
788
        // we define that we set this element
789
        $this->definedElements[$element] = true;
790
791
        // adding property
792
        $this->properties[] = array(
793
            'key' => $key,
794
            'value' => $value
795
        );
796
    }
797
798
    /**
799
     * Checks if we should return vcard in cal wrapper
800
     *
801
     * @return bool
802
     */
803
    protected function shouldAttachmentBeCal()
804
    {
805
        $browser = $this->getUserAgent();
806
807
        $matches = array();
808
        preg_match('/os (\d+)_(\d+)\s+/', $browser, $matches);
809
        $version = isset($matches[1]) ? ((int) $matches[1]) : 999;
810
811
        return ($version < 8);
812
    }
813
}
814