summaryrefslogtreecommitdiffstats
path: root/dom/url/URLSearchParams.h
blob: 4b0aaa9917611cae12ae42569d73960238c4aab3 (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
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_URLSearchParams_h
#define mozilla_dom_URLSearchParams_h

#include "js/StructuredClone.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/ErrorResult.h"
#include "nsCycleCollectionParticipant.h"
#include "nsWrapperCache.h"
#include "nsISupports.h"
#include "nsIUnicodeDecoder.h"
#include "nsIXMLHttpRequest.h"

namespace mozilla {
namespace dom {

class URLSearchParams;

class URLSearchParamsObserver : public nsISupports
{
public:
  virtual ~URLSearchParamsObserver() {}

  virtual void URLSearchParamsUpdated(URLSearchParams* aFromThis) = 0;
};

// This class is used in BasePrincipal and it's _extremely_ important that the
// attributes are kept in the correct order. If this changes, please, update
// BasePrincipal code.

class URLParams final
{
public:
  URLParams() {}

  ~URLParams()
  {
    DeleteAll();
  }

  explicit URLParams(const URLParams& aOther)
    : mParams(aOther.mParams)
  {}

  URLParams(const URLParams&& aOther)
    : mParams(Move(aOther.mParams))
  {}

  class ForEachIterator
  {
  public:
    virtual bool
    URLParamsIterator(const nsString& aName, const nsString& aValue) = 0;
  };

  void
  ParseInput(const nsACString& aInput);

  bool
  ForEach(ForEachIterator& aIterator) const
  {
    for (uint32_t i = 0; i < mParams.Length(); ++i) {
      if (!aIterator.URLParamsIterator(mParams[i].mKey, mParams[i].mValue)) {
        return false;
      }
    }

    return true;
  }

  void Serialize(nsAString& aValue) const;

  void Get(const nsAString& aName, nsString& aRetval);

  void GetAll(const nsAString& aName, nsTArray<nsString >& aRetval);

  void Set(const nsAString& aName, const nsAString& aValue);

  void Append(const nsAString& aName, const nsAString& aValue);

  bool Has(const nsAString& aName);

  // Returns true if aName was found and deleted, false otherwise.
  bool Delete(const nsAString& aName);

  void DeleteAll()
  {
    mParams.Clear();
  }

  uint32_t Length() const
  {
    return mParams.Length();
  }

  const nsAString& GetKeyAtIndex(uint32_t aIndex) const
  {
    MOZ_ASSERT(aIndex < mParams.Length());
    return mParams[aIndex].mKey;
  }

  const nsAString& GetValueAtIndex(uint32_t aIndex) const
  {
    MOZ_ASSERT(aIndex < mParams.Length());
    return mParams[aIndex].mValue;
  }

  bool
  ReadStructuredClone(JSStructuredCloneReader* aReader);

  bool
  WriteStructuredClone(JSStructuredCloneWriter* aWriter) const;

private:
  void DecodeString(const nsACString& aInput, nsAString& aOutput);
  void ConvertString(const nsACString& aInput, nsAString& aOutput);

  struct Param
  {
    nsString mKey;
    nsString mValue;
  };

  nsTArray<Param> mParams;
  nsCOMPtr<nsIUnicodeDecoder> mDecoder;
};

class URLSearchParams final : public nsIXHRSendable,
                              public nsWrapperCache
{
  ~URLSearchParams();

public:
  NS_DECL_NSIXHRSENDABLE

  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(URLSearchParams)

  explicit URLSearchParams(nsISupports* aParent,
                           URLSearchParamsObserver* aObserver=nullptr);

  URLSearchParams(nsISupports* aParent,
                  const URLSearchParams& aOther);

  // WebIDL methods
  nsISupports* GetParentObject() const
  {
    return mParent;
  }

  virtual JSObject*
  WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;

  static already_AddRefed<URLSearchParams>
  Constructor(const GlobalObject& aGlobal, const nsAString& aInit,
              ErrorResult& aRv);

  static already_AddRefed<URLSearchParams>
  Constructor(const GlobalObject& aGlobal, URLSearchParams& aInit,
              ErrorResult& aRv);

  void ParseInput(const nsACString& aInput);

  void Serialize(nsAString& aValue) const;

  void Get(const nsAString& aName, nsString& aRetval);

  void GetAll(const nsAString& aName, nsTArray<nsString>& aRetval);

  void Set(const nsAString& aName, const nsAString& aValue);

  void Append(const nsAString& aName, const nsAString& aValue);

  bool Has(const nsAString& aName);

  void Delete(const nsAString& aName);

  uint32_t GetIterableLength() const;
  const nsAString& GetKeyAtIndex(uint32_t aIndex) const;
  const nsAString& GetValueAtIndex(uint32_t aIndex) const;

  void Stringify(nsString& aRetval) const
  {
    Serialize(aRetval);
  }

  typedef URLParams::ForEachIterator ForEachIterator;

  bool
  ForEach(ForEachIterator& aIterator) const
  {
    return mParams->ForEach(aIterator);

    return true;
  }

  bool
  ReadStructuredClone(JSStructuredCloneReader* aReader);

  bool
  WriteStructuredClone(JSStructuredCloneWriter* aWriter) const;

private:
  void AppendInternal(const nsAString& aName, const nsAString& aValue);

  void DeleteAll();

  void NotifyObserver();

  UniquePtr<URLParams> mParams;
  nsCOMPtr<nsISupports> mParent;
  RefPtr<URLSearchParamsObserver> mObserver;
};

} // namespace dom
} // namespace mozilla

#endif /* mozilla_dom_URLSearchParams_h */