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
|
/* -*- 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/. */
#include "Omnijar.h"
#include "nsDirectoryService.h"
#include "nsDirectoryServiceDefs.h"
#include "nsIFile.h"
#include "nsZipArchive.h"
#include "nsNetUtil.h"
namespace mozilla {
StaticRefPtr<nsIFile> Omnijar::sPath[2];
StaticRefPtr<nsZipArchive> Omnijar::sReader[2];
StaticRefPtr<nsZipArchive> Omnijar::sOuterReader[2];
bool Omnijar::sInitialized = false;
bool Omnijar::sIsUnified = false;
static const char* sProp[2] = {NS_GRE_DIR, NS_XPCOM_CURRENT_PROCESS_DIR};
#define SPROP(Type) ((Type == mozilla::Omnijar::GRE) ? sProp[GRE] : sProp[APP])
void Omnijar::CleanUpOne(Type aType) {
if (sReader[aType]) {
sReader[aType] = nullptr;
}
if (sOuterReader[aType]) {
sOuterReader[aType] = nullptr;
}
sPath[aType] = nullptr;
}
void Omnijar::InitOne(nsIFile* aPath, Type aType) {
nsCOMPtr<nsIFile> file;
if (aPath) {
file = aPath;
} else {
nsCOMPtr<nsIFile> dir;
nsDirectoryService::gService->Get(SPROP(aType), NS_GET_IID(nsIFile),
getter_AddRefs(dir));
constexpr auto kOmnijarName = nsLiteralCString{MOZ_STRINGIFY(OMNIJAR_NAME)};
if (NS_FAILED(dir->Clone(getter_AddRefs(file))) ||
NS_FAILED(file->AppendNative(kOmnijarName))) {
return;
}
}
bool isFile;
if (NS_FAILED(file->IsFile(&isFile)) || !isFile) {
// If we're not using an omni.jar for GRE, and we don't have an
// omni.jar for APP, check if both directories are the same.
if ((aType == APP) && (!sPath[GRE])) {
nsCOMPtr<nsIFile> greDir, appDir;
bool equals;
nsDirectoryService::gService->Get(sProp[GRE], NS_GET_IID(nsIFile),
getter_AddRefs(greDir));
nsDirectoryService::gService->Get(sProp[APP], NS_GET_IID(nsIFile),
getter_AddRefs(appDir));
if (NS_SUCCEEDED(greDir->Equals(appDir, &equals)) && equals) {
sIsUnified = true;
}
}
return;
}
bool equals;
if ((aType == APP) && (sPath[GRE]) &&
NS_SUCCEEDED(sPath[GRE]->Equals(file, &equals)) && equals) {
// If we're using omni.jar on both GRE and APP and their path
// is the same, we're in the unified case.
sIsUnified = true;
return;
}
RefPtr<nsZipArchive> zipReader = nsZipArchive::OpenArchive(file);
if (!zipReader) {
return;
}
RefPtr<nsZipArchive> outerReader;
RefPtr<nsZipHandle> handle;
if (NS_SUCCEEDED(nsZipHandle::Init(zipReader, MOZ_STRINGIFY(OMNIJAR_NAME),
getter_AddRefs(handle)))) {
outerReader = zipReader;
zipReader = nsZipArchive::OpenArchive(handle);
if (!zipReader) {
return;
}
}
CleanUpOne(aType);
sReader[aType] = zipReader;
sOuterReader[aType] = outerReader;
sPath[aType] = file;
}
void Omnijar::Init(nsIFile* aGrePath, nsIFile* aAppPath) {
InitOne(aGrePath, GRE);
InitOne(aAppPath, APP);
sInitialized = true;
}
void Omnijar::CleanUp() {
CleanUpOne(GRE);
CleanUpOne(APP);
sInitialized = false;
}
already_AddRefed<nsZipArchive> Omnijar::GetReader(nsIFile* aPath) {
MOZ_ASSERT(IsInitialized(), "Omnijar not initialized");
bool equals;
nsresult rv;
if (sPath[GRE]) {
rv = sPath[GRE]->Equals(aPath, &equals);
if (NS_SUCCEEDED(rv) && equals) {
return IsNested(GRE) ? GetOuterReader(GRE) : GetReader(GRE);
}
}
if (sPath[APP]) {
rv = sPath[APP]->Equals(aPath, &equals);
if (NS_SUCCEEDED(rv) && equals) {
return IsNested(APP) ? GetOuterReader(APP) : GetReader(APP);
}
}
return nullptr;
}
already_AddRefed<nsZipArchive> Omnijar::GetInnerReader(
nsIFile* aPath, const nsACString& aEntry) {
MOZ_ASSERT(IsInitialized(), "Omnijar not initialized");
if (!aEntry.EqualsLiteral(MOZ_STRINGIFY(OMNIJAR_NAME))) {
return nullptr;
}
bool equals;
nsresult rv;
if (sPath[GRE]) {
rv = sPath[GRE]->Equals(aPath, &equals);
if (NS_SUCCEEDED(rv) && equals) {
return IsNested(GRE) ? GetReader(GRE) : nullptr;
}
}
if (sPath[APP]) {
rv = sPath[APP]->Equals(aPath, &equals);
if (NS_SUCCEEDED(rv) && equals) {
return IsNested(APP) ? GetReader(APP) : nullptr;
}
}
return nullptr;
}
nsresult Omnijar::GetURIString(Type aType, nsACString& aResult) {
MOZ_ASSERT(IsInitialized(), "Omnijar not initialized");
aResult.Truncate();
// Return an empty string for APP in the unified case.
if ((aType == APP) && sIsUnified) {
return NS_OK;
}
nsAutoCString omniJarSpec;
if (sPath[aType]) {
nsresult rv = NS_GetURLSpecFromActualFile(sPath[aType], omniJarSpec);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
aResult = "jar:";
if (IsNested(aType)) {
aResult += "jar:";
}
aResult += omniJarSpec;
aResult += "!";
if (IsNested(aType)) {
aResult += "/" MOZ_STRINGIFY(OMNIJAR_NAME) "!";
}
} else {
nsCOMPtr<nsIFile> dir;
nsDirectoryService::gService->Get(SPROP(aType), NS_GET_IID(nsIFile),
getter_AddRefs(dir));
nsresult rv = NS_GetURLSpecFromActualFile(dir, aResult);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
aResult += "/";
return NS_OK;
}
} /* namespace mozilla */
|
