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
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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
// Copyright (c) 2006, Google Inc.
// 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 Google Inc. 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.
#import "HTTPMultipartUpload.h"
@interface HTTPMultipartUpload(PrivateMethods)
- (NSString *)multipartBoundary;
- (NSData *)formDataForKey:(NSString *)key value:(NSString *)value;
- (NSData *)formDataForFile:(NSString *)file name:(NSString *)name;
@end
@implementation HTTPMultipartUpload
//=============================================================================
#pragma mark -
#pragma mark || Private ||
//=============================================================================
- (NSString *)multipartBoundary {
// The boundary has 27 '-' characters followed by 16 hex digits
return [NSString stringWithFormat:@"---------------------------%08X%08X",
rand(), rand()];
}
//=============================================================================
- (NSData *)formDataForKey:(NSString *)key value:(NSString *)value {
NSString *escaped =
[key stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *fmt =
@"--%@\r\nContent-Disposition: form-data; name=\"%@\"\r\n\r\n%@\r\n";
NSString *form = [NSString stringWithFormat:fmt, boundary_, escaped, value];
return [form dataUsingEncoding:NSUTF8StringEncoding];
}
//=============================================================================
- (NSData *)formDataForFile:(NSString *)file name:(NSString *)name {
NSMutableData *data = [NSMutableData data];
NSString *escaped =
[name stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *fmt = @"--%@\r\nContent-Disposition: form-data; name=\"%@\"; "
"filename=\"%@\"\r\nContent-Type: application/octet-stream\r\n\r\n";
NSString *pre = [NSString stringWithFormat:fmt, boundary_, escaped,
[file lastPathComponent]];
NSString *post = [NSString stringWithFormat:@"\r\n--%@--\r\n", boundary_];
[data appendData:[pre dataUsingEncoding:NSUTF8StringEncoding]];
[data appendData:[NSData dataWithContentsOfFile:file]];
[data appendData:[post dataUsingEncoding:NSUTF8StringEncoding]];
return data;
}
//=============================================================================
#pragma mark -
#pragma mark || Public ||
//=============================================================================
- (id)initWithURL:(NSURL *)url {
if ((self = [super init])) {
url_ = [url copy];
boundary_ = [[self multipartBoundary] retain];
}
return self;
}
//=============================================================================
- (void)dealloc {
[url_ release];
[parameters_ release];
[files_ release];
[boundary_ release];
[response_ release];
[super dealloc];
}
//=============================================================================
- (NSURL *)URL {
return url_;
}
//=============================================================================
- (void)setParameters:(NSDictionary *)parameters {
if (parameters != parameters_) {
[parameters_ release];
parameters_ = [parameters copy];
}
}
//=============================================================================
- (NSDictionary *)parameters {
return parameters_;
}
//=============================================================================
- (void)addFileAtPath:(NSString *)path name:(NSString *)name {
if (!files_)
files_ = [[NSMutableDictionary alloc] init];
[files_ setObject:path forKey:name];
}
//=============================================================================
- (NSDictionary *)files {
return files_;
}
//=============================================================================
- (NSData *)send:(NSError **)error {
NSMutableURLRequest *req = [[NSMutableURLRequest alloc] initWithURL:url_];
NSMutableData *postBody = [NSMutableData data];
int i, count;
[req setValue:[NSString stringWithFormat:@"multipart/form-data; boundary=%@",
boundary_] forHTTPHeaderField:@"Content-type"];
// Add any parameters to the message
NSArray *parameterKeys = [parameters_ allKeys];
NSString *key;
count = [parameterKeys count];
for (i = 0; i < count; ++i) {
key = [parameterKeys objectAtIndex:i];
[postBody appendData:[self formDataForKey:key
value:[parameters_ objectForKey:key]]];
}
// Add any files to the message
NSArray *fileNames = [files_ allKeys];
count = [fileNames count];
for (i = 0; i < count; ++i) {
NSString *name = [fileNames objectAtIndex:i];
NSString *file = [files_ objectForKey:name];
[postBody appendData:[self formDataForFile:file name:name]];
}
[req setHTTPBody:postBody];
[req setHTTPMethod:@"POST"];
return [NSURLConnection sendSynchronousRequest:req
returningResponse:&response_
error:error];
}
//=============================================================================
- (NSHTTPURLResponse *)response {
return response_;
}
@end
|
