squirrelmail-webmail  1.4.22
About: SquirrelMail is a standards-based webmail package with strong MIME support, address books, and folder manipulation (written in PHP4).
  Fossies Dox: squirrelmail-webmail-1.4.22.tar.gz  ("inofficial" and yet experimental doxygen-generated source code documentation)  

imap_utf7_local.php
Go to the documentation of this file.
1 <?php
2 
25 function sqimap_mb_convert_encoding($str, $to_encoding, $from_encoding, $default_charset)
26 {
27  $supported_encodings=sq_mb_list_encodings();
28  if ( in_array(strtolower($default_charset),$supported_encodings) &&
29  function_exists('mb_convert_encoding')) {
30  return mb_convert_encoding($str, $to_encoding, $from_encoding);
31  }
32  return '';
33 }
34 
35 function imap_utf7_encode_local($s) {
37 
38  if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
39  function_exists($languages[$squirrelmail_language]['XTRA_CODE'])) {
40  return $languages[$squirrelmail_language]['XTRA_CODE']('utf7-imap_encode', $s);
41  }
42 
43  if ($s == '') //If empty, don't bother
44  return '';
45 
46  global $default_charset;
47  set_my_charset(); //must be called before using $default_charset
48  if ((strtolower($default_charset) != 'iso-8859-1') && ($default_charset != '')) {
50  if ($utf7_s != '')
51  return $utf7_s;
52  }
53 
54  // Later code works only for ISO-8859-1
55 
56  $b64_s = ''; // buffer for substring to be base64-encoded
57  $utf7_s = ''; // imap-utf7-encoded string
58  for ($i = 0; $i < strlen($s); $i++) {
59  $c = $s[$i];
60  $ord_c = ord($c);
61  if ((($ord_c >= 0x20) and ($ord_c <= 0x25)) or
62  (($ord_c >= 0x27) and ($ord_c <= 0x7e))) {
63  if ($b64_s) {
64  $utf7_s = $utf7_s . '&' . encodeBASE64($b64_s) .'-';
65  $b64_s = '';
66  }
67  $utf7_s = $utf7_s . $c;
68  } elseif ($ord_c == 0x26) {
69  if ($b64_s) {
70  $utf7_s = $utf7_s . '&' . encodeBASE64($b64_s) . '-';
71  $b64_s = '';
72  }
73  $utf7_s = $utf7_s . '&-';
74  } else {
75  $b64_s = $b64_s . chr(0) . $c;
76  }
77  }
78  //
79  // flush buffer
80  //
81  if ($b64_s) {
82  $utf7_s = $utf7_s . '&' . encodeBASE64($b64_s) . '-';
83  $b64_s = '';
84  }
85  return $utf7_s;
86 }
87 
88 function imap_utf7_decode_local($s) {
90 
91  if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
92  function_exists($languages[$squirrelmail_language]['XTRA_CODE'])) {
93  return $languages[$squirrelmail_language]['XTRA_CODE']('utf7-imap_decode', $s);
94  }
95 
96  if ($s == '') //If empty, don't bother
97  return '';
98 
99  global $default_charset;
100  set_my_charset(); //must be called before using $default_charset
101  if ((strtolower($default_charset) != 'iso-8859-1') && ($default_charset != '')) {
102  $utf7_s = sqimap_mb_convert_encoding($s, $default_charset, 'UTF7-IMAP', $default_charset);
103  if ($utf7_s != '')
104  return $utf7_s;
105  }
106 
107  // Later code works only for ISO-8859-1
108 
109  $b64_s = '';
110  $iso_8859_1_s = '';
111  for ($i = 0, $len = strlen($s); $i < $len; $i++) {
112  $c = $s[$i];
113  if (strlen($b64_s) > 0) {
114  if ($c == '-') {
115  if ($b64_s == '&') {
116  $iso_8859_1_s = $iso_8859_1_s . '&';
117  } else {
118  $iso_8859_1_s = $iso_8859_1_s .
119  decodeBASE64(substr($b64_s, 1));
120  }
121  $b64_s = '';
122  } else {
123  $b64_s = $b64_s . $c;
124  }
125  } else {
126  if ($c == '&') {
127  $b64_s = '&';
128  } else {
129  $iso_8859_1_s = $iso_8859_1_s . $c;
130  }
131  }
132  }
133  return $iso_8859_1_s;
134 }
135 
136 function encodeBASE64($s) {
137  $B64Chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+,';
138  $p = 0; // phase: 1 / 2 / 3 / 1 / 2 / 3...
139  $e = ''; // base64-encoded string
140  //foreach($s as $c) {
141  for ($i = 0; $i < strlen($s); $i++) {
142  $c = $s[$i];
143  if ($p == 0) {
144  $e = $e . substr($B64Chars, ((ord($c) & 252) >> 2), 1);
145  $t = (ord($c) & 3);
146  $p = 1;
147  } elseif ($p == 1) {
148  $e = $e . $B64Chars[($t << 4) + ((ord($c) & 240) >> 4)];
149  $t = (ord($c) & 15);
150  $p = 2;
151  } elseif ($p == 2) {
152  $e = $e . $B64Chars[($t << 2) + ((ord($c) & 192) >> 6)];
153  $e = $e . $B64Chars[ord($c) & 63];
154  $p = 0;
155  }
156  }
157  //
158  // flush buffer
159  //
160  if ($p == 1) {
161  $e = $e . $B64Chars[$t << 4];
162  } elseif ($p == 2) {
163  $e = $e . $B64Chars[$t << 2];
164  }
165  return $e;
166 }
167 
168 function decodeBASE64($s) {
169  $B64Values = array(
170  'A' => 0, 'B' => 1, 'C' => 2, 'D' => 3, 'E' => 4, 'F' => 5,
171  'G' => 6, 'H' => 7, 'I' => 8, 'J' => 9, 'K' => 10, 'L' => 11,
172  'M' => 12, 'N' => 13, 'O' => 14, 'P' => 15, 'Q' => 16, 'R' => 17,
173  'S' => 18, 'T' => 19, 'U' => 20, 'V' => 21, 'W' => 22, 'X' => 23,
174  'Y' => 24, 'Z' => 25,
175  'a' => 26, 'b' => 27, 'c' => 28, 'd' => 29, 'e' => 30, 'f' => 31,
176  'g' => 32, 'h' => 33, 'i' => 34, 'j' => 35, 'k' => 36, 'l' => 37,
177  'm' => 38, 'n' => 39, 'o' => 40, 'p' => 41, 'q' => 42, 'r' => 43,
178  's' => 44, 't' => 45, 'u' => 46, 'v' => 47, 'w' => 48, 'x' => 49,
179  'y' => 50, 'z' => 51,
180  '0' => 52, '1' => 53, '2' => 54, '3' => 55, '4' => 56, '5' => 57,
181  '6' => 58, '7' => 59, '8' => 60, '9' => 61, '+' => 62, ',' => 63
182  );
183  $p = 0;
184  $d = '';
185  $unicodeNullByteToggle = 0;
186  for ($i = 0, $len = strlen($s); $i < $len; $i++) {
187  $c = $s[$i];
188  if ($p == 0) {
189  $t = $B64Values[$c];
190  $p = 1;
191  } elseif ($p == 1) {
192  if ($unicodeNullByteToggle) {
193  $d = $d . chr(($t << 2) + (($B64Values[$c] & 48) >> 4));
194  $unicodeNullByteToggle = 0;
195  } else {
196  $unicodeNullByteToggle = 1;
197  }
198  $t = ($B64Values[$c] & 15);
199  $p = 2;
200  } elseif ($p == 2) {
201  if ($unicodeNullByteToggle) {
202  $d = $d . chr(($t << 4) + (($B64Values[$c] & 60) >> 2));
203  $unicodeNullByteToggle = 0;
204  } else {
205  $unicodeNullByteToggle = 1;
206  }
207  $t = ($B64Values[$c] & 3);
208  $p = 3;
209  } elseif ($p == 3) {
210  if ($unicodeNullByteToggle) {
211  $d = $d . chr(($t << 6) + $B64Values[$c]);
212  $unicodeNullByteToggle = 0;
213  } else {
214  $unicodeNullByteToggle = 1;
215  }
216  $t = ($B64Values[$c] & 3);
217  $p = 0;
218  }
219  }
220  return $d;
221 }
222 
elseif
if(! sqgetGlobalVar('sound', $sound, SQ_GET)) elseif($sound=='(none)')
Definition: testsound.php:25
$languages
global $languages
Definition: i18n.php:774
encodeBASE64
encodeBASE64($s)
Definition: imap_utf7_local.php:136
decodeBASE64
decodeBASE64($s)
Definition: imap_utf7_local.php:168
sq_mb_list_encodings
sq_mb_list_encodings()
Definition: strings.php:1186
imap_utf7_decode_local
imap_utf7_decode_local($s)
Definition: imap_utf7_local.php:88
sqimap_mb_convert_encoding
sqimap_mb_convert_encoding($str, $to_encoding, $from_encoding, $default_charset)
Definition: imap_utf7_local.php:25
$default_charset
$default_charset
Definition: config_default.php:1027
set_my_charset
set_my_charset()
Definition: i18n.php:511
imap_utf7_encode_local
imap_utf7_encode_local($s)
Definition: imap_utf7_local.php:35
$squirrelmail_language
global $squirrelmail_language
Definition: i18n.php:774