Re: [Kimchi-devel] [PATCH] add a Base64 saftURL encode and decode function

Thanks for the patch, Sheldon! But for the next_url I was able to use urllib2 and encodeURIcomponent() That way we keep consistent the communication between backend and UI Maybe we can add this base64 code for future matters.

On 07/16/2014 01:53 PM, shaohef(a)linux.vnet.ibm.com wrote: > From: ShaoHe Feng <shaohef(a)linux.vnet.ibm.com&gt; > > These two functions are similar to the functions in > ui/js/novnc/base64.js > > usage: > --- a/ui/pages/login.html.tmpl > +++ b/ui/pages/login.html.tmpl > @@ -36,6 +36,7 @@ > <script src="$href('libs/jquery-ui.min.js')"></script> > <script src="$href('libs/jquery-ui-i18n.min.js')"></script> > <script src="$href('js/kimchi.min.js')"></script> > +<script src="$href('js/Base64saftURL.js')"></script> > <style type="text/css"> > .topbar select { > float: right; > > then in UI: > Base64.encode("f4>&^bc") > "ZjQ-Jl5iYw==" > Base64.decode("ZjQ-Jl5iYw==") > "f4>&^bc" > > this is just a sample. > > we can add it to ui/js/src/kimchi.utils.js > > Signed-off-by: ShaoHe Feng <shaohef(a)linux.vnet.ibm.com&gt; > --- > ui/js/Base64saftURL.js | 110 > +++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 110 insertions(+) > create mode 100644 ui/js/Base64saftURL.js > > diff --git a/ui/js/Base64saftURL.js b/ui/js/Base64saftURL.js > new file mode 100644 > index 0000000..8880a7e > --- /dev/null > +++ b/ui/js/Base64saftURL.js > @@ -0,0 +1,110 @@ > +/* This Source Code Form is subject to the terms of the Mozilla Public > + * License, v. 2.0. If a copy of the MPL was not distributed with this > + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ > + > +// From: > http://hg.mozilla.org/mozilla-central/raw-file/ec10630b1a54/js/src/devtoo... > > + > +/*jslint white: false, bitwise: false, plusplus: false */ > +/*global console */ > + > +var Base64 = { > + > +/* Convert data (an array of integers) to a Base64 string. */ > +toBase64Table : > 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_='.split(''), > > +base64Pad : '=', > + > +encode: function (data) { > + "use strict"; > + var result = ''; > + var toBase64Table = Base64.toBase64Table; > + var length = data.length > + var lengthpad = (length%3); > + var i = 0, j = 0; > + // Convert every three bytes to 4 ascii characters. > + /* BEGIN LOOP */ > + for (i = 0; i < (length - 2); i += 3) { > + result += toBase64Table[data.charCodeAt(i) >> 2]; > + result += toBase64Table[((data.charCodeAt(i) & 0x03) << 4) + > (data.charCodeAt(i+1) >> 4)]; > + result += toBase64Table[((data.charCodeAt(i+1) & 0x0f) << 2) > + (data.charCodeAt(i+2) >> 6)]; > + result += toBase64Table[data.charCodeAt(i+2) & 0x3f]; > + } > + /* END LOOP */ > + > + // Convert the remaining 1 or 2 bytes, pad out to 4 characters. > + if (lengthpad === 2) { > + j = length - lengthpad; > + result += toBase64Table[data.charCodeAt(j) >> 2]; > + result += toBase64Table[((data.charCodeAt(j) & 0x03) << 4) + > (data.charCodeAt(j+1) >> 4)]; > + result += toBase64Table[(data.charCodeAt(j+1) & 0x0f) << 2]; > + result += toBase64Table[64]; > + } else if (lengthpad === 1) { > + j = length - lengthpad; > + result += toBase64Table[data.charCodeAt(j) >> 2]; > + result += toBase64Table[(data.charCodeAt(j) & 0x03) << 4]; > + result += toBase64Table[64]; > + result += toBase64Table[64]; > + } > + > + return result; > +}, > + > +/* Convert Base64 data to a string */ > +toBinaryTable : [ > + -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, > + -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, > + -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,62,-1,-1, > + 52,53,54,55, 56,57,58,59, 60,61,-1,-1, -1, 0,-1,-1, > + -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10, 11,12,13,14, > + 15,16,17,18, 19,20,21,22, 23,24,25,-1, -1,-1,-1,63, > + -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40, > + 41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1 > +], > + > +decode: function (data, offset) { > + "use strict"; > + offset = typeof(offset) !== 'undefined' ? offset : 0; > + var toBinaryTable = Base64.toBinaryTable; > + var base64Pad = Base64.base64Pad; > + var result, result_length, idx, i, c, padding; > + var leftbits = 0; // number of bits decoded, but yet to be appended > + var leftdata = 0; // bits decoded, but yet to be appended > + > + // Convert one by one. > + /* BEGIN LOOP */ > + result = "" > + for (idx = 0, i = offset; i < data.length; i++) { > + c = toBinaryTable[data.charCodeAt(i) & 0x7f]; > + padding = (data.charAt(i) === base64Pad); > + // Skip illegal characters and whitespace > + if (c === -1) { > + console.error("Illegal character code " + > data.charCodeAt(i) + " at position " + i); > + continue; > + } > + > + // Collect data into leftdata, update bitcount > + leftdata = (leftdata << 6) | c; > + leftbits += 6; > + > + // If we have 8 or more bits, append 8 bits to the result > + if (leftbits >= 8) { > + leftbits -= 8; > + // Append if not padding. > + if (!padding) { > + idx++; > + result += String.fromCharCode((leftdata >> leftbits) > & 0xff); > + } > + leftdata &= (1 << leftbits) - 1; > + } > + } > + /* END LOOP */ > + > + // If there are any bits left, the base64 string was corrupted > + if (leftbits) { > + throw {name: 'Base64-Error', > + message: 'Corrupted base64 string'}; > + } > + > + return result; > +} > + > +}; /* End of Base64 namespace */ _______________________________________________ Kimchi-devel mailing list Kimchi-devel(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/kimchi-devel