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GUAC-608: Automatically divide outbound data into roughly 8K (max) blobs.

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This commit is contained in:
Michael Jumper
2014-04-08 12:49:17 -07:00
parent 92a9213fd0
commit 13cefc9296
1 changed files with 26 additions and 4 deletions
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30
guacamole-common-js/src/main/webapp/modules/ArrayBufferWriter.js
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@@ -45,13 +45,14 @@ Guacamole.ArrayBufferWriter = function(stream) {
};
/**
* Sends the given data.
* Encodes the given data as base64, sending it as a blob. The data must
* be small enough to fit into a single blob instruction.
*
* @param {ArrayBuffer} data The data to send.
* @private
* @param {Uint8Array} bytes The data to send.
*/
this.sendData = function(data) {
function __send_blob(bytes) {
var bytes = new Uint8Array(data);
var binary = "";
// Produce binary string from bytes in buffer
@@ -61,6 +62,27 @@ Guacamole.ArrayBufferWriter = function(stream) {
// Send as base64
stream.sendBlob(window.btoa(binary));
}
/**
* Sends the given data.
*
* @param {ArrayBuffer|TypedArray} data The data to send.
*/
this.sendData = function(data) {
var bytes = new Uint8Array(data);
// If small enough to fit into single instruction, send as-is
if (bytes.length <= 8064)
__send_blob(bytes);
// Otherwise, send as multiple instructions
else {
for (var offset=0; offset<bytes.length; offset += 8064)
__send_blob(bytes.subarray(offset, offset + 8094));
}
};
/**