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

// Copyright 2007, Google Inc.
//
// Redistribution and use in source and binary forms, with or without 
// modification, are permitted provided that the following conditions are met:
//
//  1. Redistributions of source code must retain the above copyright notice, 
//     this list of conditions and the following disclaimer.
//  2. 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.
//  3. 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 AUTHOR ``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 AUTHOR 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.

#include "gears/base/common/common.h"
#include "gears/base/common/js_types.h"
#include "gears/base/common/permissions_db.h"
#include "gears/base/common/string_utils.h"
#include "gears/base/common/url_utils.h"
#include "third_party/jsoncpp/json.h"
#include "gears/ui/common/html_dialog.h"
#include "gears/ui/common/permissions_dialog.h"

const char16 *kLocalDataDialogType = STRING16(L"localData");
const char16 *kLocationDataDialogType = STRING16(L"locationData");

// Internal helper functions.
static bool ToJsonStringValue(const char16 *str, Json::Value *json_value);
static bool PopulateArguments(const SecurityOrigin &origin,
                              const char16* dialog_type,
                              const char16 *custom_icon,
                              const char16 *custom_name,
                              const char16 *custom_message,
                              Json::Value *args);
static const char16* DialogTypeForPermission(
    PermissionsDB::PermissionType type);

//------------------------------------------------------------------------------
// PermissionsDialog

PermissionState PermissionsDialog::Prompt(
    const SecurityOrigin &origin,
    PermissionsDB::PermissionType type,
    const CustomContent *custom_content) {
  // Note: Arguments and results are coupled to the values that
  // permissions_dialog.html.m4 is expecting.
  const char16* dialog_type = DialogTypeForPermission(type);
  HtmlDialog dialog;
  const char16 *custom_icon = NULL;
  const char16 *custom_name = NULL;
  const char16 *custom_message = NULL;
  if (custom_content) {
    custom_icon = custom_content->custom_icon_url.c_str();
    custom_name = custom_content->custom_name.c_str();
    custom_message = custom_content->custom_message.c_str();
  }

  if (!PopulateArguments(origin,
                         dialog_type,
                         custom_icon,
                         custom_name,
                         custom_message,
                         &dialog.arguments)) {
    return NOT_SET;
  }

#ifdef WINCE
  const int kDialogWidth = 230;
  const int kDialogHeight = 240;
#else
  const int kDialogWidth = 360;
  const int kDialogHeight = 220;
#endif
  const char16 *kDialogFile = STRING16(L"permissions_dialog.html");

  HtmlDialogReturnValue retval =
      dialog.DoModal(kDialogFile, kDialogWidth, kDialogHeight);

  if (retval == HTML_DIALOG_FAILURE) {
    LOG(("PermissionsDialog::Prompt() - Unexpected result."));
    return NOT_SET;
  }

  // Extract the dialog results.
  bool allow;
  bool permanently;

  if (retval == HTML_DIALOG_SUPPRESSED) {
    allow = true;
    permanently = true;
  } else if (dialog.result == Json::Value::null) {
    // A null dialog.result is okay; it means the user closed the dialog
    // instead of pressing any button.
    allow = false;
    permanently = false;
  } else {
    if (!dialog.result["allow"].isBool() ||
        !dialog.result["permanently"].isBool()) {
      assert(false);
      LOG(("PermissionsDialog::Prompt() - Unexpected result."));
      return NOT_SET;
    }

    allow = dialog.result["allow"].asBool();
    permanently = dialog.result["permanently"].asBool();
  }

  // Store permanent results in the DB.
  if (permanently) {
    PermissionsDB::PermissionValue value = 
                       allow ? PermissionsDB::PERMISSION_ALLOWED
                             : PermissionsDB::PERMISSION_DENIED;
    PermissionsDB *permissions = PermissionsDB::GetDB();
    if (permissions) {
      permissions->SetPermission(origin, type, value);
    }
  }

  // Convert the results to a PermissionState value.
  if (allow) {
    if (permanently) return ALLOWED_PERMANENTLY;
    else return ALLOWED_TEMPORARILY;
  } else {
    if (permanently) return DENIED_PERMANENTLY;
    else return DENIED_TEMPORARILY;
  }
}

PermissionsDialog::CustomContent* PermissionsDialog::CreateCustomContent(
      JsCallContext *context) {
  std::string16 site_name;
  std::string16 image_url;
  std::string16 extra_message;

  JsArgument argv[] = {
    { JSPARAM_OPTIONAL, JSPARAM_STRING16, &site_name },
    { JSPARAM_OPTIONAL, JSPARAM_STRING16, &image_url },
    { JSPARAM_OPTIONAL, JSPARAM_STRING16, &extra_message },
  };
  context->GetArguments(ARRAYSIZE(argv), argv);
  
  if (context->is_exception_set())
    return NULL;

  return new CustomContent(image_url.c_str(),
                           site_name.c_str(),
                           extra_message.c_str());
}

//------------------------------------------------------------------------------
// PermissionsDialog::CustomContent
 
PermissionsDialog::CustomContent::CustomContent(
    const char16 *custom_icon_url_in,
    const char16 *custom_name_in,
    const char16 *custom_message_in) 
    : custom_icon_url(custom_icon_url_in),
      custom_name(custom_name_in),
      custom_message(custom_message_in) {
}

//------------------------------------------------------------------------------
// Internal

static bool ToJsonStringValue(const char16 *str, Json::Value *json_value) {
  assert(str);
  assert(json_value);

  std::string str8;
  if (!String16ToUTF8(str, &str8)) {
    LOG(("PermissionsDialog::ToJsonStringValue: Could not convert string.\n"));
    return false;
  }
  *json_value = Json::Value(str8);
  return true;
}


static bool PopulateArguments(const SecurityOrigin &origin,
                              const char16* dialog_type,
                              const char16 *custom_icon,
                              const char16 *custom_name,
                              const char16 *custom_message,
                              Json::Value *args) {
  assert(args);
  assert(args->isObject());
  assert(args->size() == 0);
  assert(dialog_type && dialog_type[0]);

  // Show something more user-friendly for kUnknownDomain.
  // TODO(aa): This is needed by settings dialog too. Factor this out into a
  // common utility.
  std::string16 display_origin(origin.url());
  if (origin.host() == kUnknownDomain) {
    ReplaceAll(display_origin,
               std::string16(kUnknownDomain),
               std::string16(STRING16(L"<no domain>")));
  }

  if (!ToJsonStringValue(display_origin.c_str(), &((*args)["origin"]))) {
    return false;
  }

  if (!ToJsonStringValue(dialog_type, &((*args)["dialogType"]))) {
    return false;
  }

  if (custom_icon && custom_icon[0]) {
    std::string16 full_icon_url;
    if (!ResolveAndNormalize(origin.full_url().c_str(),
                             custom_icon,
                             &full_icon_url) ||
        !ToJsonStringValue(full_icon_url.c_str(), &((*args)["customIcon"]))) {
      return false;
    }
  }

  if (custom_name && custom_name[0] &&
      !ToJsonStringValue(custom_name, &((*args)["customName"]))) {
    return false;
  }

  if (custom_message && custom_message[0] &&
      !ToJsonStringValue(custom_message, &((*args)["customMessage"]))) {
    return false;
  }

  return true;
}

static const char16* DialogTypeForPermission(
    PermissionsDB::PermissionType type) {
  switch (type) {
    case PermissionsDB::PERMISSION_LOCAL_DATA:
      return kLocalDataDialogType;
    case PermissionsDB::PERMISSION_LOCATION_DATA:
      return kLocationDataDialogType;
    default:
      LOG(("Invalid permission type.\n"));
      assert(false);
      return NULL;
  };
}