summaryrefslogtreecommitdiffstats
path: root/ppapi/cpp/url_request_info.h
blob: 49e47ae930155ef4dcaf6189429d997e5d3ecd1c (plain)
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
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef PPAPI_CPP_URL_REQUEST_INFO_H_
#define PPAPI_CPP_URL_REQUEST_INFO_H_

#include "ppapi/c/ppb_url_request_info.h"
#include "ppapi/cpp/resource.h"
#include "ppapi/cpp/var.h"

/// @file
/// This file defines the API for creating and manipulating URL requests.
namespace pp {

class FileRef;
class InstanceHandle;

/// URLRequestInfo provides an API for creating and manipulating URL requests.
class URLRequestInfo : public Resource {
 public:
  /// Default constructor. This constructor creates an
  /// <code>is_null</code> resource.
  URLRequestInfo() {}

  /// A constructor used to allocate a new <code>URLLoader</code> in the
  /// browser. The resulting object will be <code>is_null</code> if the
  /// allocation failed.
  ///
  /// @param[in] instance The instance with which this resource will be
  /// associated.
  explicit URLRequestInfo(const InstanceHandle& instance);

  /// The copy constructor for <code>URLRequestInfo</code>.
  ///
  /// @param[in] other A <code>URLRequestInfo</code> to be copied.
  URLRequestInfo(const URLRequestInfo& other);

  /// SetProperty() sets a request property. The value of the property must be
  /// the correct type according to the property being set.
  ///
  /// @param[in] property A <code>PP_URLRequestProperty</code> identifying the
  /// property to set.
  /// @param[in] value A <code>Var</code> containing the property value.
  ///
  /// @return true if successful, false if any of the
  /// parameters are invalid.
  bool SetProperty(PP_URLRequestProperty property, const Var& value);

  /// AppendDataToBody() appends data to the request body. A content-length
  /// request header will be automatically generated.
  ///
  /// @param[in] data A pointer to a buffer holding the data.
  /// @param[in] len The length, in bytes, of the data.
  ///
  /// @return true if successful, false if any of the
  /// parameters are invalid.
  bool AppendDataToBody(const void* data, uint32_t len);

  /// AppendFileToBody() is used to append an entire file, to be uploaded, to
  /// the request body. A content-length request header will be automatically
  /// generated.
  ///
  /// @param[in] file_ref A <code>FileRef</code> containing the file
  /// reference.

  /// @param[in] expected_last_modified_time An optional (non-zero) last
  /// modified time stamp used to validate that the file was not modified since
  /// the given time before it was uploaded. The upload will fail with an error
  /// code of <code>PP_ERROR_FILECHANGED</code> if the file has been modified
  /// since the given time. If expected_last_modified_time is 0, then no
  /// validation is performed.
  ///
  /// @return true if successful, false if any of the
  /// parameters are invalid.
  bool AppendFileToBody(const FileRef& file_ref,
                        PP_Time expected_last_modified_time = 0);

  /// AppendFileRangeToBody() is a pointer to a function used to append part or
  /// all of a file, to be uploaded, to the request body. A content-length
  /// request header will be automatically generated.
  ///
  /// @param[in] file_ref A <code>FileRef</code> containing the file
  /// reference.
  /// @param[in] start_offset An optional starting point offset within the
  /// file.
  /// @param[in] length An optional number of bytes of the file to
  /// be included. If the value is -1, then the sub-range to upload extends
  /// to the end of the file.
  /// @param[in] expected_last_modified_time An optional (non-zero) last
  /// modified time stamp used to validate that the file was not modified since
  /// the given time before it was uploaded. The upload will fail with an error
  /// code of <code>PP_ERROR_FILECHANGED</code> if the file has been modified
  /// since the given time. If expected_last_modified_time is 0, then no
  /// validation is performed.
  ///
  /// @return true if successful, false if any of the
  /// parameters are invalid.
  bool AppendFileRangeToBody(const FileRef& file_ref,
                             int64_t start_offset,
                             int64_t length,
                             PP_Time expected_last_modified_time = 0);

  /// SetURL() sets the <code>PP_URLREQUESTPROPERTY_URL</code>
  /// property for the request.
  ///
  /// @param[in] url_string A <code>Var</code> containing the property value.
  ///
  /// @return true if successful, false if the parameter is invalid.
  bool SetURL(const Var& url_string) {
    return SetProperty(PP_URLREQUESTPROPERTY_URL, url_string);
  }

  /// SetMethod() sets the <code>PP_URLREQUESTPROPERTY_METHOD</code>
  /// (corresponding to a string of type <code>PP_VARTYPE_STRING</code>)
  /// property for the request. This string is either a POST or GET. Refer to
  /// the <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html">HTTP
  /// Methods</a> documentation for further information.
  ///
  /// @param[in] method_string A <code>Var</code> containing the property
  /// value.
  ///
  /// @return true if successful, false if the parameter is invalid.
  bool SetMethod(const Var& method_string) {
    return SetProperty(PP_URLREQUESTPROPERTY_METHOD, method_string);
  }

  /// SetHeaders() sets the <code>PP_URLREQUESTPROPERTY_HEADERS</code>
  /// (corresponding to a <code>\n</code> delimited string of type
  /// <code>PP_VARTYPE_STRING</code>) property for the request.
  /// Refer to the
  /// <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html"Header
  /// Field Definitions</a> documentaiton for further information.
  ///
  /// @param[in] headers_string A <code>Var</code> containing the property
  /// value.
  ///
  /// @return true if successful, false if the parameter is invalid.
  bool SetHeaders(const Var& headers_string) {
    return SetProperty(PP_URLREQUESTPROPERTY_HEADERS, headers_string);
  }

  /// SetStreamToFile() sets the
  /// <code>PP_URLREQUESTPROPERTY_STREAMTOFILE</code> (corresponding
  /// to a bool of type <code>PP_VARTYPE_BOOL</code>). The default of the
  /// property is false. Set this value to true if you want to download the
  /// data to a file. Use URL_Loader::FinishStreamingToFile() to complete
  /// the download.
  ///
  /// @param[in] enable A <code>bool</code> containing the property value.
  ///
  /// @return true if successful, false if the parameter is invalid.
  bool SetStreamToFile(bool enable) {
    return SetProperty(PP_URLREQUESTPROPERTY_STREAMTOFILE, enable);
  }

  /// SetFollowRedirects() sets the
  /// <code>PP_URLREQUESTPROPERTY_FOLLOWREDIRECT</code> (corresponding
  /// to a bool of type <code>PP_VARTYPE_BOOL</code>). The default of the
  /// property is true. Set this value to false if you want to use
  /// URLLoader::FollowRedirects() to follow the redirects only after examining
  /// redirect headers.
  ///
  /// @param[in] enable A <code>bool</code> containing the property value.
  ///
  /// @return true if successful, false if the parameter is invalid.
  bool SetFollowRedirects(bool enable) {
    return SetProperty(PP_URLREQUESTPROPERTY_FOLLOWREDIRECTS, enable);
  }

  /// SetRecordDownloadProgress() sets the
  /// <code>PP_URLREQUESTPROPERTY_RECORDDOWNLOADPROGESS</code>
  /// (corresponding to a bool of type <code>PP_VARTYPE_BOOL</code>). The
  /// default of the property is false. Set this value to true if you want to
  /// be able to poll the download progress using
  /// URLLoader::GetDownloadProgress().
  ///
  /// @param[in] enable A <code>bool</code> containing the property value.
  ////
  /// @return true if successful, false if the parameter is invalid.
  bool SetRecordDownloadProgress(bool enable) {
    return SetProperty(PP_URLREQUESTPROPERTY_RECORDDOWNLOADPROGRESS, enable);
  }

  /// SetRecordUploadProgress() sets the
  /// <code>PP_URLREQUESTPROPERTY_RECORDUPLOADPROGRESS</code>
  /// (corresponding to a bool of type <code>PP_VARTYPE_BOOL</code>). The
  /// default of the property is false. Set this value to true if you want to
  /// be able to poll the upload progress using URLLoader::GetUploadProgress().
  ///
  /// @param[in] enable A <code>bool</code> containing the property value.
  ///
  /// @return true if successful, false if the parameter is invalid.
  bool SetRecordUploadProgress(bool enable) {
    return SetProperty(PP_URLREQUESTPROPERTY_RECORDUPLOADPROGRESS, enable);
  }

  /// SetCustomReferrerURL() sets the
  /// <code>PP_URLREQUESTPROPERTY_CUSTOMREFERRERURL</code>
  /// (corresponding to a string of type <code>PP_VARTYPE_STRING</code> or
  /// might be set to undefined as <code>PP_VARTYPE_UNDEFINED</code>). Set it
  /// to a string to set a custom referrer (if empty, the referrer header will
  /// be omitted), or to undefined to use the default referrer. Only loaders
  /// with universal access (only available on trusted implementations) will
  /// accept <code>URLRequestInfo</code> objects that try to set a custom
  /// referrer; if given to a loader without universal access,
  /// <code>PP_ERROR_BADARGUMENT</code> will result.
  ///
  /// @param[in] url A <code>Var</code> containing the property value.
  ///
  /// @return true if successful, false if the parameter is invalid.
  bool SetCustomReferrerURL(const Var& url) {
    return SetProperty(PP_URLREQUESTPROPERTY_CUSTOMREFERRERURL, url);
  }

  /// SetAllowCrossOriginRequests() sets the
  /// <code>PP_URLREQUESTPROPERTY_ALLOWCROSSORIGINREQUESTS</code>
  /// (corresponding to a bool of type <code>PP_VARTYPE_BOOL</code>). The
  /// default of the property is false. Whether cross-origin requests are
  /// allowed. Cross-origin requests are made using the CORS (Cross-Origin
  /// Resource Sharing) algorithm to check whether the request should be
  /// allowed. For the complete CORS algorithm, refer to the
  /// <a href="http://www.w3.org/TR/access-control">Cross-Origin Resource
  /// Sharing</a> documentation.
  ///
  /// @param[in] enable A <code>bool</code> containing the property value.
  ///
  /// @return true if successful, false if the parameter is invalid.
  bool SetAllowCrossOriginRequests(bool enable) {
    return SetProperty(PP_URLREQUESTPROPERTY_ALLOWCROSSORIGINREQUESTS, enable);
  }

  /// SetAllowCredentials() sets the
  /// <code>PP_URLREQUESTPROPERTY_ALLOWCREDENTIALS</code>
  /// (corresponding to a bool of type <code>PP_VARTYPE_BOOL</code>). The
  /// default of the property is false. Whether HTTP credentials are sent with
  /// cross-origin requests. If false, no credentials are sent with the request
  /// and cookies are ignored in the response. If the request is not
  /// cross-origin, this property is ignored.
  ///
  /// @param[in] enable A <code>bool</code> containing the property value.
  ///
  /// @return true if successful, false if the parameter is invalid.
  bool SetAllowCredentials(bool enable) {
    return SetProperty(PP_URLREQUESTPROPERTY_ALLOWCREDENTIALS, enable);
  }


  /// SetCustomContentTransferEncoding() sets the
  /// <code>PP_URLREQUESTPROPERTY_CUSTOMCONTENTTRANSFERENCODING</code>
  /// (corresponding to a string of type <code>PP_VARTYPE_STRING</code> or
  /// might be set to undefined as <code>PP_VARTYPE_UNDEFINED</code>). Set it
  /// to a string to set a custom content-transfer-encoding header (if empty,
  /// that header will be omitted), or to undefined to use the default (if
  /// any). Only loaders with universal access (only available on trusted
  /// implementations) will accept <code>URLRequestInfo</code> objects that try
  /// to set a custom content transfer encoding; if given to a loader without
  /// universal access, <code>PP_ERROR_BADARGUMENT</code> will result.
  ///
  /// @param[in] content_transfer_encoding A <code>Var</code> containing the
  /// property value. To use the default content transfer encoding, set
  /// <code>content_transfer_encoding</code> to an undefined <code>Var</code>.
  ///
  /// @return true if successful, false if the parameter is invalid.
  bool SetCustomContentTransferEncoding(const Var& content_transfer_encoding) {
    return SetProperty(PP_URLREQUESTPROPERTY_CUSTOMCONTENTTRANSFERENCODING,
                       content_transfer_encoding);
  }

  /// SetPrefetchBufferUpperThreshold() sets the
  /// <code>PP_URLREQUESTPROPERTY_PREFETCHBUFFERUPPERTHRESHOLD</code>
  /// (corresponding to a integer of type <code>PP_VARTYPE_INT32</code>). The
  /// default is not defined and is set by the browser possibly depending on
  /// system capabilities. Set it to an integer to set an upper threshold for
  /// the prefetched buffer of an asynchronous load. When exceeded, the browser
  /// will defer loading until
  /// <code>PP_URLREQUESTPROPERTY_PREFETCHBUFFERLOWERERTHRESHOLD</code> is hit,
  /// at which time it will begin prefetching again. When setting this
  /// property,
  /// <code>PP_URLREQUESTPROPERTY_PREFETCHBUFFERLOWERERTHRESHOLD</code> must
  /// also be set. Behavior is undefined if the former is <= the latter.
  ///
  /// @param[in] size An int32_t containing the property value.
  ///
  /// @return true if successful, false if the parameter is invalid.
  bool SetPrefetchBufferUpperThreshold(int32_t size) {
    return SetProperty(PP_URLREQUESTPROPERTY_PREFETCHBUFFERUPPERTHRESHOLD,
                       size);
  }

  /// SetPrefetchBufferLowerThreshold() sets the
  /// <code>PP_URLREQUESTPROPERTY_PREFETCHBUFFERLOWERTHRESHOLD</code>
  /// (corresponding to a integer of type <code>PP_VARTYPE_INT32</code>). The
  /// default is not defined and is set by the browser to a value appropriate
  /// for the default
  /// <code>PP_URLREQUESTPROPERTY_PREFETCHBUFFERUPPERTHRESHOLD</code>.
  /// Set it to an integer to set a lower threshold for the prefetched buffer
  /// of an asynchronous load. When reached, the browser will resume loading if
  /// If <code>PP_URLREQUESTPROPERTY_PREFETCHBUFFERLOWERERTHRESHOLD</code> had
  /// previously been reached.
  /// When setting this property,
  /// <code>PP_URLREQUESTPROPERTY_PREFETCHBUFFERUPPERTHRESHOLD</code> must also
  /// be set. Behavior is undefined if the former is >= the latter.
  ///
  /// @param[in] size An int32_t containing the property value.
  ///
  /// @return true if successful, false if the parameter is invalid.
  bool SetPrefetchBufferLowerThreshold(int32_t size) {
    return SetProperty(PP_URLREQUESTPROPERTY_PREFETCHBUFFERLOWERTHRESHOLD,
                       size);
  }
};

}  // namespace pp

#endif  // PPAPI_CPP_URL_REQUEST_INFO_H_