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
|
/**
* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/
*/
const interpretChar = (chars, index) => {
return chars.charCodeAt(index).toString(16).padStart(4, "0");
};
const hexEncode = str => {
let result = "";
const len = str.length;
for (let i = 0; i < len; ++i) {
result += interpretChar(str, i);
}
return result;
};
const collectCorrupted = (expected, actual) => {
const len = Math.min(expected.length, actual.length);
let notEquals = [];
for (let i = 0; i < len; ++i) {
if (expected[i] !== actual[i]) {
notEquals.push([hexEncode(expected[i]), hexEncode(actual[i])]);
}
}
return notEquals;
};
const sanitizeOutputWithSurrogates = (testValue, prefix = "") => {
let utf8What = prefix;
for (let i = 0; i < testValue.length; ++i) {
const valueChar = testValue.charCodeAt(i);
const isPlanar = 0xd800 <= valueChar && valueChar <= 0xdfff;
utf8What += isPlanar ? "\\u" + interpretChar(testValue, i) : testValue[i];
}
return utf8What;
};
const getEncodingSample = () => {
const expectedSample =
"3681207208613504e0a5028800b945551988c60050008027ebc2808c00d38e806e03d8210ac906722b85499be9d00000";
let result = "";
const len = expectedSample.length;
for (let i = 0; i < len; i += 4) {
result += String.fromCharCode(parseInt(expectedSample.slice(i, i + 4), 16));
}
return result;
};
const getSeparatedBasePlane = () => {
let result = "";
for (let i = 0xffff; i >= 0; --i) {
result += String.fromCharCode(i) + "\n";
}
return result;
};
const getJoinedBasePlane = () => {
let result = "";
for (let i = 0; i <= 0xffff; ++i) {
result += String.fromCharCode(i);
}
return result;
};
const getSurrogateCombinations = () => {
const upperLead = String.fromCharCode(0xdbff);
const lowerTrail = String.fromCharCode(0xdc00);
const regularSlot = ["w", "abcdefghijklmnopqrst", "aaaaaaaaaaaaaaaaaaaa", ""];
const surrogateSlot = [lowerTrail, upperLead];
let samples = [];
for (const leadSnippet of regularSlot) {
for (const firstSlot of surrogateSlot) {
for (const trailSnippet of regularSlot) {
for (const secondSlot of surrogateSlot) {
samples.push(leadSnippet + firstSlot + secondSlot + trailSnippet);
}
samples.push(leadSnippet + firstSlot + trailSnippet);
}
}
}
return samples;
};
const fetchFrom = async (itemKey, sample, meanwhile) => {
const principal = getPrincipal("http://example.com/", {});
let request = clearOrigin(principal);
await requestFinished(request);
const storage = getLocalStorage(principal);
await storage.setItem(itemKey, sample);
await meanwhile(principal);
return storage.getItem(itemKey);
};
/**
* Value fetched from existing snapshot based on
* existing in-memory datastore in the parent process
* without any communication between content/parent
*/
const fetchFromExistingSnapshotExistingDatastore = async (itemKey, sample) => {
return fetchFrom(itemKey, sample, async () => {});
};
/**
* Value fetched from newly created snapshot based on
* existing in-memory datastore in the parent process
*/
const fetchFromNewSnapshotExistingDatastore = async (itemKey, sample) => {
return fetchFrom(itemKey, sample, async () => {
await returnToEventLoop();
});
};
/**
* Value fetched from newly created snapshot based on newly created
* in-memory datastore based on database in the parent process
*/
const fetchFromNewSnapshotNewDatastore = async (itemKey, sample) => {
return fetchFrom(itemKey, sample, async principal => {
let request = resetOrigin(principal);
await requestFinished(request);
});
};
add_task(async function testSteps() {
/* This test is based on bug 1681300 */
Services.prefs.setBoolPref(
"dom.storage.enable_unsupported_legacy_implementation",
false
);
Services.prefs.setBoolPref("dom.storage.snapshot_reusing", false);
const reportWhat = (testKey, testValue) => {
if (testKey.length + testValue.length > 82) {
return testKey;
}
return sanitizeOutputWithSurrogates(testValue, /* prefix */ testKey + ":");
};
const testFetchMode = async (testType, storeAndLookup) => {
const testPairs = [
{ testEmptyValue: [""] },
{ testSampleKey: [getEncodingSample()] },
{ testSeparatedKey: [getSeparatedBasePlane()] },
{ testJoinedKey: [getJoinedBasePlane()] },
{ testCombinations: getSurrogateCombinations() },
];
for (const testPair of testPairs) {
for (const [testKey, expectedValues] of Object.entries(testPair)) {
for (const expected of expectedValues) {
const actual = await storeAndLookup(testKey, expected);
const testInfo = reportWhat(testKey, expected);
is(
null != actual,
true,
testType + ": Value not null for " + testInfo
);
is(
expected.length,
actual.length,
testType + ": Returned size for " + testInfo
);
const notEquals = collectCorrupted(expected, actual);
for (let i = 0; i < notEquals.length; ++i) {
is(
notEquals[i][0],
notEquals[i][1],
testType + ": Unequal character at " + i + " for " + testInfo
);
}
}
}
}
};
await testFetchMode(
"ExistingSnapshotExistingDatastore",
fetchFromExistingSnapshotExistingDatastore
);
await testFetchMode(
"NewSnapshotExistingDatastore",
fetchFromNewSnapshotExistingDatastore
);
await testFetchMode(
"NewSnapshotNewDatastore",
fetchFromNewSnapshotNewDatastore
);
});
|
