| 6056 |
efrain |
1 |
(function ($) {
|
|
|
2 |
"use strict";
|
|
|
3 |
|
|
|
4 |
// This set of validators requires the File API, so if we'ere in a browser
|
|
|
5 |
// that isn't sufficiently "HTML5"-y, don't even bother creating them. It'll
|
|
|
6 |
// do no good, so we just automatically pass those tests.
|
|
|
7 |
var is_supported_browser = !!window.File,
|
|
|
8 |
fileSizeToBytes,
|
|
|
9 |
formatter = $.validator.format;
|
|
|
10 |
|
|
|
11 |
/**
|
|
|
12 |
* Converts a measure of data size from a given unit to bytes.
|
|
|
13 |
*
|
|
|
14 |
* @param number size
|
|
|
15 |
* A measure of data size, in the give unit
|
|
|
16 |
* @param string unit
|
|
|
17 |
* A unit of data. Valid inputs are "B", "KB", "MB", "GB", "TB"
|
|
|
18 |
*
|
|
|
19 |
* @return number|bool
|
|
|
20 |
* The number of bytes in the above size/unit combo. If an
|
|
|
21 |
* invalid unit is specified, false is returned
|
|
|
22 |
*/
|
|
|
23 |
fileSizeToBytes = (function () {
|
|
|
24 |
|
|
|
25 |
var units = ["B", "KB", "MB", "GB", "TB"];
|
|
|
26 |
|
|
|
27 |
return function (size, unit) {
|
|
|
28 |
|
|
|
29 |
var index_of_unit = units.indexOf(unit),
|
|
|
30 |
coverted_size;
|
|
|
31 |
|
|
|
32 |
if (index_of_unit === -1) {
|
|
|
33 |
|
|
|
34 |
coverted_size = false;
|
|
|
35 |
|
|
|
36 |
} else {
|
|
|
37 |
|
|
|
38 |
while (index_of_unit > 0) {
|
|
|
39 |
size *= 1024;
|
|
|
40 |
index_of_unit -= 1;
|
|
|
41 |
}
|
|
|
42 |
|
|
|
43 |
coverted_size = size;
|
|
|
44 |
}
|
|
|
45 |
|
|
|
46 |
return coverted_size;
|
|
|
47 |
};
|
|
|
48 |
}());
|
|
|
49 |
|
|
|
50 |
/**
|
|
|
51 |
* Validates that an uploaded file is of a given file type, tested
|
|
|
52 |
* by it's reported mime string.
|
|
|
53 |
*
|
|
|
54 |
* @param obj params
|
|
|
55 |
* An optional set of configuration parmeters. Supported options are:
|
|
|
56 |
* "types" : array (default ["text"])
|
|
|
57 |
* An array of file types. This types are loosely checked, so including
|
|
|
58 |
* "text" in this array of types will cause "text/plain" and "text/css"
|
|
|
59 |
* to both be excepted. If the selected file matches any of the strings
|
|
|
60 |
* in this array, validation passes.
|
|
|
61 |
*/
|
|
|
62 |
$.validator.addMethod(
|
|
|
63 |
"fileType",
|
|
|
64 |
function (value, element, params) {
|
|
|
65 |
|
|
|
66 |
var files,
|
|
|
67 |
types = params.types || ["text"],
|
|
|
68 |
is_valid = false;
|
|
|
69 |
|
|
|
70 |
if (!is_supported_browser || this.optional(element)) {
|
|
|
71 |
|
|
|
72 |
is_valid = true;
|
|
|
73 |
|
|
|
74 |
} else {
|
|
|
75 |
|
|
|
76 |
files = element.files;
|
|
|
77 |
|
|
|
78 |
if (files.length < 1) {
|
|
|
79 |
|
|
|
80 |
is_valid = false;
|
|
|
81 |
|
|
|
82 |
} else {
|
|
|
83 |
|
|
|
84 |
$.each(types, function (key, value) {
|
|
|
85 |
is_valid = is_valid || files[0].type.indexOf(value) !== -1;
|
|
|
86 |
});
|
|
|
87 |
|
|
|
88 |
}
|
|
|
89 |
}
|
|
|
90 |
|
|
|
91 |
return is_valid;
|
|
|
92 |
},
|
|
|
93 |
function (params, element) {
|
|
|
94 |
return formatter(
|
|
|
95 |
"File must be one of the following types: {0}.",
|
|
|
96 |
params.types.join(",")
|
|
|
97 |
);
|
|
|
98 |
}
|
|
|
99 |
);
|
|
|
100 |
|
|
|
101 |
/**
|
|
|
102 |
* Validates that a file selected for upload is at least a given
|
|
|
103 |
* file size.
|
|
|
104 |
*
|
|
|
105 |
* @param obj params
|
|
|
106 |
* An optional set of configuration parameters. Supported options are:
|
|
|
107 |
* "unit" : string (default "KB")
|
|
|
108 |
* The unit of measure of the file size limit is in. Valid inputs
|
|
|
109 |
* are "B", "KB", "MB" and "GB"
|
|
|
110 |
* "size" : number (default 100)
|
|
|
111 |
* The minimum size of the file, in the above units, that the file
|
|
|
112 |
* must be, to be accepted as "valid"
|
|
|
113 |
*/
|
|
|
114 |
$.validator.addMethod(
|
|
|
115 |
"minFileSize",
|
|
|
116 |
function (value, element, params) {
|
|
|
117 |
|
|
|
118 |
var files,
|
|
|
119 |
unit = params.unit || "KB",
|
|
|
120 |
size = params.size || 100,
|
|
|
121 |
min_file_size = fileSizeToBytes(size, unit),
|
|
|
122 |
is_valid = false;
|
|
|
123 |
|
|
|
124 |
if (!is_supported_browser || this.optional(element)) {
|
|
|
125 |
|
|
|
126 |
is_valid = true;
|
|
|
127 |
|
|
|
128 |
} else {
|
|
|
129 |
|
|
|
130 |
files = element.files;
|
|
|
131 |
|
|
|
132 |
if (files.length < 1) {
|
|
|
133 |
|
|
|
134 |
is_valid = false;
|
|
|
135 |
|
|
|
136 |
} else {
|
|
|
137 |
|
|
|
138 |
is_valid = files[0].size >= min_file_size;
|
|
|
139 |
|
|
|
140 |
}
|
|
|
141 |
}
|
|
|
142 |
|
|
|
143 |
return is_valid;
|
|
|
144 |
},
|
|
|
145 |
function (params, element) {
|
|
|
146 |
return formatter(
|
|
|
147 |
"File must be at least {0}{1} large.",
|
|
|
148 |
[params.size || 100, params.unit || "KB"]
|
|
|
149 |
);
|
|
|
150 |
}
|
|
|
151 |
);
|
|
|
152 |
|
|
|
153 |
/**
|
|
|
154 |
* Validates that a file selected for upload is no loarger than a given
|
|
|
155 |
* file size.
|
|
|
156 |
*
|
|
|
157 |
* @param obj params
|
|
|
158 |
* An optional set of configuration parameters. Supported options are:
|
|
|
159 |
* "unit" : string (default "KB")
|
|
|
160 |
* The unit of measure of the file size limit is in. Valid inputs
|
|
|
161 |
* are "B", "KB", "MB" and "GB"
|
|
|
162 |
* "size" : number (default 100)
|
|
|
163 |
* The maximum size of the file, in the above units, that the file
|
|
|
164 |
* can be to be accepted as "valid"
|
|
|
165 |
*/
|
|
|
166 |
$.validator.addMethod(
|
|
|
167 |
"maxFileSize",
|
|
|
168 |
function (value, element, params) {
|
|
|
169 |
|
|
|
170 |
var files,
|
|
|
171 |
unit = params.unit || "KB",
|
|
|
172 |
size = params.size || 100,
|
|
|
173 |
max_file_size = fileSizeToBytes(size, unit),
|
|
|
174 |
is_valid = false;
|
|
|
175 |
|
|
|
176 |
if (!is_supported_browser || this.optional(element)) {
|
|
|
177 |
|
|
|
178 |
is_valid = true;
|
|
|
179 |
|
|
|
180 |
} else {
|
|
|
181 |
|
|
|
182 |
files = element.files;
|
|
|
183 |
|
|
|
184 |
if (files.length < 1) {
|
|
|
185 |
|
|
|
186 |
is_valid = false;
|
|
|
187 |
|
|
|
188 |
} else {
|
|
|
189 |
|
|
|
190 |
is_valid = files[0].size <= max_file_size;
|
|
|
191 |
|
|
|
192 |
}
|
|
|
193 |
}
|
|
|
194 |
|
|
|
195 |
return is_valid;
|
|
|
196 |
},
|
|
|
197 |
function (params, element) {
|
|
|
198 |
return formatter(
|
|
|
199 |
"File cannot be larger than {0}{1}.",
|
|
|
200 |
[params.size || 100, params.unit || "KB"]
|
|
|
201 |
);
|
|
|
202 |
}
|
|
|
203 |
);
|
|
|
204 |
|
|
|
205 |
}(jQuery));
|