← All changes | classes/fpdf/decoders/ASCII85Decode.php +96 -96 1.4.12 → 2.12.4 View file →

		@@ -1,97 +1,97 @@
1		-<?php
2		-//
3		-// FPDI - Version 1.2
4		-//
5		-// Copyright 2004-2007 Setasign - Jan Slabon
6		-//
7		-// Licensed under the Apache License, Version 2.0 (the "License");
8		-// you may not use this file except in compliance with the License.
9		-// You may obtain a copy of the License at
10		-//
11		-// http://www.apache.org/licenses/LICENSE-2.0
12		-//
13		-// Unless required by applicable law or agreed to in writing, software
14		-// distributed under the License is distributed on an "AS IS" BASIS,
15		-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16		-// See the License for the specific language governing permissions and
17		-// limitations under the License.
18		-//
19		-
20		-if (!defined("ORD_z"))
21		- define("ORD_z",ord('z'));
22		-if (!defined("ORD_exclmark"))
23		- define("ORD_exclmark", ord('!'));
24		-if (!defined("ORD_u"))
25		- define("ORD_u", ord("u"));
26		-if (!defined("ORD_tilde"))
27		- define("ORD_tilde", ord('~'));
28		-
29		-class ASCII85Decode {
30		-
31		- function ASCII85Decode(&$fpdi) {
32		- $this->fpdi =& $fpdi;
33		- }
34		-
35		-
36		- function decode($in) {
37		- $out = "";
38		- $state = 0;
39		- $chn = null;
40		-
41		- $l = strlen($in);
42		-
43		- for ($k = 0; $k < $l; ++$k) {
44		- $ch = ord($in[$k]) & 0xff;
45		-
46		- if ($ch == ORD_tilde) {
47		- break;
48		- }
49		- if (preg_match("/^\s$/",chr($ch))) {
50		- continue;
51		- }
52		- if ($ch == ORD_z && $state == 0) {
53		- $out .= chr(0).chr(0).chr(0).chr(0);
54		- continue;
55		- }
56		- if ($ch < ORD_exclmark || $ch > ORD_u) {
57		- $this->fpdi->error("Illegal character in ASCII85Decode.");
58		- }
59		-
60		- $chn[$state++] = $ch - ORD_exclmark;
61		-
62		- if ($state == 5) {
63		- $state = 0;
64		- $r = 0;
65		- for ($j = 0; $j < 5; ++$j)
66		- $r = $r * 85 + $chn[$j];
67		- $out .= chr($r >> 24);
68		- $out .= chr($r >> 16);
69		- $out .= chr($r >> 8);
70		- $out .= chr($r);
71		- }
72		- }
73		- $r = 0;
74		-
75		- if ($state == 1)
76		- $this->fpdi->error("Illegal length in ASCII85Decode.");
77		- if ($state == 2) {
78		- $r = $chn[0] * 85 * 85 * 85 * 85 + ($chn[1]+1) * 85 * 85 * 85;
79		- $out .= chr($r >> 24);
80		- }
81		- else if ($state == 3) {
82		- $r = $chn[0] * 85 * 85 * 85 * 85 + $chn[1] * 85 * 85 * 85 + ($chn[2]+1) * 85 * 85;
83		- $out .= chr($r >> 24);
84		- $out .= chr($r >> 16);
85		- }
86		- else if ($state == 4) {
87		- $r = $chn[0] * 85 * 85 * 85 * 85 + $chn[1] * 85 * 85 * 85 + $chn[2] * 85 * 85 + ($chn[3]+1) * 85 ;
88		- $out .= chr($r >> 24);
89		- $out .= chr($r >> 16);
90		- $out .= chr($r >> 8);
91		- }
92		-
93		- return $out;
94		- }
95		-}
96		-
	1	+<?php
	2	+//
	3	+// FPDI - Version 1.2
	4	+//
	5	+// Copyright 2004-2007 Setasign - Jan Slabon
	6	+//
	7	+// Licensed under the Apache License, Version 2.0 (the "License");
	8	+// you may not use this file except in compliance with the License.
	9	+// You may obtain a copy of the License at
	10	+//
	11	+// http://www.apache.org/licenses/LICENSE-2.0
	12	+//
	13	+// Unless required by applicable law or agreed to in writing, software
	14	+// distributed under the License is distributed on an "AS IS" BASIS,
	15	+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	16	+// See the License for the specific language governing permissions and
	17	+// limitations under the License.
	18	+//
	19	+
	20	+if (!defined("ORD_z"))
	21	+ define("ORD_z",ord('z'));
	22	+if (!defined("ORD_exclmark"))
	23	+ define("ORD_exclmark", ord('!'));
	24	+if (!defined("ORD_u"))
	25	+ define("ORD_u", ord("u"));
	26	+if (!defined("ORD_tilde"))
	27	+ define("ORD_tilde", ord('~'));
	28	+
	29	+class ASCII85Decode {
	30	+
	31	+ function ASCII85Decode(&$fpdi) {
	32	+ $this->fpdi =& $fpdi;
	33	+ }
	34	+
	35	+
	36	+ function decode($in) {
	37	+ $out = "";
	38	+ $state = 0;
	39	+ $chn = null;
	40	+
	41	+ $l = strlen($in);
	42	+
	43	+ for ($k = 0; $k < $l; ++$k) {
	44	+ $ch = ord($in[$k]) & 0xff;
	45	+
	46	+ if ($ch == ORD_tilde) {
	47	+ break;
	48	+ }
	49	+ if (preg_match("/^\s$/",chr($ch))) {
	50	+ continue;
	51	+ }
	52	+ if ($ch == ORD_z && $state == 0) {
	53	+ $out .= chr(0).chr(0).chr(0).chr(0);
	54	+ continue;
	55	+ }
	56	+ if ($ch < ORD_exclmark || $ch > ORD_u) {
	57	+ $this->fpdi->error("Illegal character in ASCII85Decode.");
	58	+ }
	59	+
	60	+ $chn[$state++] = $ch - ORD_exclmark;
	61	+
	62	+ if ($state == 5) {
	63	+ $state = 0;
	64	+ $r = 0;
	65	+ for ($j = 0; $j < 5; ++$j)
	66	+ $r = $r * 85 + $chn[$j];
	67	+ $out .= chr($r >> 24);
	68	+ $out .= chr($r >> 16);
	69	+ $out .= chr($r >> 8);
	70	+ $out .= chr($r);
	71	+ }
	72	+ }
	73	+ $r = 0;
	74	+
	75	+ if ($state == 1)
	76	+ $this->fpdi->error("Illegal length in ASCII85Decode.");
	77	+ if ($state == 2) {
	78	+ $r = $chn[0] * 85 * 85 * 85 * 85 + ($chn[1]+1) * 85 * 85 * 85;
	79	+ $out .= chr($r >> 24);
	80	+ }
	81	+ else if ($state == 3) {
	82	+ $r = $chn[0] * 85 * 85 * 85 * 85 + $chn[1] * 85 * 85 * 85 + ($chn[2]+1) * 85 * 85;
	83	+ $out .= chr($r >> 24);
	84	+ $out .= chr($r >> 16);
	85	+ }
	86	+ else if ($state == 4) {
	87	+ $r = $chn[0] * 85 * 85 * 85 * 85 + $chn[1] * 85 * 85 * 85 + $chn[2] * 85 * 85 + ($chn[3]+1) * 85 ;
	88	+ $out .= chr($r >> 24);
	89	+ $out .= chr($r >> 16);
	90	+ $out .= chr($r >> 8);
	91	+ }
	92	+
	93	+ return $out;
	94	+ }
	95	+}
	96	+
97	97	?>