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| author | Cash Costello <cash.costello@gmail.com> | 2010-10-24 21:08:27 +0000 |
|---|---|---|
| committer | Cash Costello <cash.costello@gmail.com> | 2010-10-24 21:08:27 +0000 |
| commit | da1493b95a2f0b5000a487ae373c9318c58d0b2d (patch) | |
| tree | a339b053ade9fb15a1717bdf248a59afc9b3d239 /vendors/uploadify/com/adobe/net/URIEncodingBitmap.as | |
| parent | 5161b1c8fdc8ff69005f864a89127fc18db6d4ed (diff) | |
| download | elgg-da1493b95a2f0b5000a487ae373c9318c58d0b2d.tar.gz elgg-da1493b95a2f0b5000a487ae373c9318c58d0b2d.tar.bz2 | |
partial implementation of flash uploader
Diffstat (limited to 'vendors/uploadify/com/adobe/net/URIEncodingBitmap.as')
| -rw-r--r-- | vendors/uploadify/com/adobe/net/URIEncodingBitmap.as | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/vendors/uploadify/com/adobe/net/URIEncodingBitmap.as b/vendors/uploadify/com/adobe/net/URIEncodingBitmap.as new file mode 100644 index 000000000..d786b33fa --- /dev/null +++ b/vendors/uploadify/com/adobe/net/URIEncodingBitmap.as @@ -0,0 +1,139 @@ +/*
+ Copyright (c) 2008, Adobe Systems Incorporated
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are
+ met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ * Neither the name of Adobe Systems Incorporated nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+package com.adobe.net
+{
+ import flash.utils.ByteArray;
+
+ /**
+ * This class implements an efficient lookup table for URI
+ * character escaping. This class is only needed if you
+ * create a derived class of URI to handle custom URI
+ * syntax. This class is used internally by URI.
+ *
+ * @langversion ActionScript 3.0
+ * @playerversion Flash 9.0*
+ */
+ public class URIEncodingBitmap extends ByteArray
+ {
+ /**
+ * Constructor. Creates an encoding bitmap using the given
+ * string of characters as the set of characters that need
+ * to be URI escaped.
+ *
+ * @langversion ActionScript 3.0
+ * @playerversion Flash 9.0
+ */
+ public function URIEncodingBitmap(charsToEscape:String) : void
+ {
+ var i:int;
+ var data:ByteArray = new ByteArray();
+
+ // Initialize our 128 bits (16 bytes) to zero
+ for (i = 0; i < 16; i++)
+ this.writeByte(0);
+
+ data.writeUTFBytes(charsToEscape);
+ data.position = 0;
+
+ while (data.bytesAvailable)
+ {
+ var c:int = data.readByte();
+
+ if (c > 0x7f)
+ continue; // only escape low bytes
+
+ var enc:int;
+ this.position = (c >> 3);
+ enc = this.readByte();
+ enc |= 1 << (c & 0x7);
+ this.position = (c >> 3);
+ this.writeByte(enc);
+ }
+ }
+
+ /**
+ * Based on the data table contained in this object, check
+ * if the given character should be escaped.
+ *
+ * @param char the character to be escaped. Only the first
+ * character in the string is used. Any other characters
+ * are ignored.
+ *
+ * @return the integer value of the raw UTF8 character. For
+ * example, if '%' is given, the return value is 37 (0x25).
+ * If the character given does not need to be escaped, the
+ * return value is zero.
+ *
+ * @langversion ActionScript 3.0
+ * @playerversion Flash 9.0
+ */
+ public function ShouldEscape(char:String) : int
+ {
+ var data:ByteArray = new ByteArray();
+ var c:int, mask:int;
+
+ // write the character into a ByteArray so
+ // we can pull it out as a raw byte value.
+ data.writeUTFBytes(char);
+ data.position = 0;
+ c = data.readByte();
+
+ if (c & 0x80)
+ {
+ // don't escape high byte characters. It can make international
+ // URI's unreadable. We just want to escape characters that would
+ // make URI syntax ambiguous.
+ return 0;
+ }
+ else if ((c < 0x1f) || (c == 0x7f))
+ {
+ // control characters must be escaped.
+ return c;
+ }
+
+ this.position = (c >> 3);
+ mask = this.readByte();
+
+ if (mask & (1 << (c & 0x7)))
+ {
+ // we need to escape this, return the numeric value
+ // of the character
+ return c;
+ }
+ else
+ {
+ return 0;
+ }
+ }
+ }
+}
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