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Commit 1932b913 1932b913623cec169179cb37c8dbabf2d0871ad8 by Nicolas Perriault
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attempt to add a dowload feature to Casper

1 parent e4c19cd7
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Showing 4 changed files with 105 additions and 12 deletions
...@@ -293,6 +293,13 @@ ...@@ -293,6 +293,13 @@
293 return this.exit(Number(status) > 0 ? Number(status) : 1); 293 return this.exit(Number(status) > 0 ? Number(status) : 1);
294 }, 294 },
295 295
296 download: function(url, targetPath) {
297 var fs = require('fs');
298 var cu = new phantom.Casper.ClientUtils();
299 fs.write(targetPath, cu.decode(this.base64encode(url)), 'w');
300 return this;
301 },
302
296 /** 303 /**
297 * Iterates over the values of a provided array and execute a callback 304 * Iterates over the values of a provided array and execute a callback
298 * for each item. 305 * for each item.
......
...@@ -30,6 +30,18 @@ ...@@ -30,6 +30,18 @@
30 * Casper client-side helpers. 30 * Casper client-side helpers.
31 */ 31 */
32 phantom.Casper.ClientUtils = function() { 32 phantom.Casper.ClientUtils = function() {
33 var BASE64_ENCODE_CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
34 var BASE64_DECODE_CHARS = new Array(
35 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
36 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
37 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
38 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
39 -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
40 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
41 -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
42 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1
43 );
44
33 /** 45 /**
34 * Clicks on the DOM element behind the provided selector. 46 * Clicks on the DOM element behind the provided selector.
35 * 47 *
...@@ -56,36 +68,82 @@ ...@@ -56,36 +68,82 @@
56 }; 68 };
57 69
58 /** 70 /**
71 * Decodes a base64 encoded string. Succeeds where window.atob() fails.
72 *
73 * @param String str The base64 encoded contents
74 * @return string
75 */
76 this.decode = function(str) {
77 // var c1, c2, c3, c4, i = 0, len = str.length, out = "";
78 // while (i < len) {
79 // do {
80 // c1 = BASE64_DECODE_CHARS[str.charCodeAt(i++) & 0xff];
81 // } while (i < len && c1 == -1);
82 // if (c1 == -1) {
83 // break;
84 // }
85 // do {
86 // c2 = BASE64_DECODE_CHARS[str.charCodeAt(i++) & 0xff];
87 // } while (i < len && c2 == -1);
88 // if (c2 == -1) {
89 // break;
90 // }
91 // out += String.fromCharCode((c1 << 2) | ((c2 & 0x30) >> 4));
92 // do {
93 // c3 = str.charCodeAt(i++) & 0xff;
94 // if (c3 == 61)
95 // return out;
96 // c3 = BASE64_DECODE_CHARS[c3];
97 // } while (i < len && c3 == -1);
98 // if (c3 == -1) {
99 // break;
100 // }
101 // out += String.fromCharCode(((c2 & 0XF) << 4) | ((c3 & 0x3C) >> 2));
102 // do {
103 // c4 = str.charCodeAt(i++) & 0xff;
104 // if (c4 == 61) {
105 // return out;
106 // }
107 // c4 = BASE64_DECODE_CHARS[c4];
108 // } while (i < len && c4 == -1);
109 // if (c4 == -1) {
110 // break;
111 // }
112 // out += String.fromCharCode(((c3 & 0x03) << 6) | c4);
113 // }
114 // return out;
115 };
116
117 /**
59 * Base64 encodes a string, even binary ones. Succeeds where 118 * Base64 encodes a string, even binary ones. Succeeds where
60 * window.btoa() fails. 119 * window.btoa() fails.
61 * 120 *
62 * @param String str 121 * @param String str The string content to encode
63 * @return string 122 * @return string
64 */ 123 */
65 this.encode = function(str) { 124 this.encode = function(str) {
66 var CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
67 var out = "", i = 0, len = str.length, c1, c2, c3; 125 var out = "", i = 0, len = str.length, c1, c2, c3;
68 while (i < len) { 126 while (i < len) {
69 c1 = str.charCodeAt(i++) & 0xff; 127 c1 = str.charCodeAt(i++) & 0xff;
70 if (i == len) { 128 if (i == len) {
71 out += CHARS.charAt(c1 >> 2); 129 out += BASE64_ENCODE_CHARS.charAt(c1 >> 2);
72 out += CHARS.charAt((c1 & 0x3) << 4); 130 out += BASE64_ENCODE_CHARS.charAt((c1 & 0x3) << 4);
73 out += "=="; 131 out += "==";
74 break; 132 break;
75 } 133 }
76 c2 = str.charCodeAt(i++); 134 c2 = str.charCodeAt(i++);
77 if (i == len) { 135 if (i == len) {
78 out += CHARS.charAt(c1 >> 2); 136 out += BASE64_ENCODE_CHARS.charAt(c1 >> 2);
79 out += CHARS.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4)); 137 out += BASE64_ENCODE_CHARS.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));
80 out += CHARS.charAt((c2 & 0xF) << 2); 138 out += BASE64_ENCODE_CHARS.charAt((c2 & 0xF) << 2);
81 out += "="; 139 out += "=";
82 break; 140 break;
83 } 141 }
84 c3 = str.charCodeAt(i++); 142 c3 = str.charCodeAt(i++);
85 out += CHARS.charAt(c1 >> 2); 143 out += BASE64_ENCODE_CHARS.charAt(c1 >> 2);
86 out += CHARS.charAt(((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4)); 144 out += BASE64_ENCODE_CHARS.charAt(((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4));
87 out += CHARS.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >> 6)); 145 out += BASE64_ENCODE_CHARS.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >> 6));
88 out += CHARS.charAt(c3 & 0x3F); 146 out += BASE64_ENCODE_CHARS.charAt(c3 & 0x3F);
89 } 147 }
90 return out; 148 return out;
91 }; 149 };
......
1 (function(t) {
2 t.comment('ClientUtils.encode()');
3
4 var fs = require('fs');
5 var utils = new phantom.Casper.ClientUtils();
6 var testCases = {
7 'an empty string': '',
8 'a word': 'plop',
9 'an utf8 string': '<chè!cs!<egfhèqzgrqgzf',
10 'song lyrics': ("Voilà l'été, j'aperçois le soleil\n" +
11 "Les nuages filent et le ciel s'éclaircit\n" +
12 "Et dans ma tête qui bourdonnent?\n" +
13 "Les abeilles!"),
14 'a file contents': fs.read(phantom.casperPath + '/tests/site/images/phantom.png')
15 };
16
17 for (var what in testCases) {
18 var source = testCases[what];
19 var encoded = utils.encode(source);
20 t.assertEquals(utils.decode(encoded), source, 'ClientUtils can encode and decode ' + what);
21 }
22
23 t.done();
24 })(casper.test);
...@@ -2,8 +2,12 @@ ...@@ -2,8 +2,12 @@
2 t.comment('Casper.base64encode()'); 2 t.comment('Casper.base64encode()');
3 3
4 casper.start('tests/site/index.html', function(self) { 4 casper.start('tests/site/index.html', function(self) {
5 var image = self.base64encode('file://' + phantom.casperPath + '/tests/site/images/phantom.png'); 5 var imageUrl = 'file://' + phantom.casperPath + '/tests/site/images/phantom.png';
6 var image = self.base64encode(imageUrl);
6 t.assertEquals(image.length, 6160, 'Casper.base64encode() can retrieve base64 contents'); 7 t.assertEquals(image.length, 6160, 'Casper.base64encode() can retrieve base64 contents');
8 self.download(imageUrl, 'logo.png');
9 var fs = require('fs');
10 t.assert(fs.exists('logo.png'), 'Casper.download() downloads a file');
7 }); 11 });
8 12
9 casper.run(function(self) { 13 casper.run(function(self) {
......