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xpcom/build/Omnijar.cpp@6474c204b198 (annotated)

xpcom/build/Omnijar.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0 2 * This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #include "Omnijar.h"
michael@0 7
michael@0 8 #include "nsDirectoryService.h"
michael@0 9 #include "nsDirectoryServiceDefs.h"
michael@0 10 #include "nsIFile.h"
michael@0 11 #include "nsZipArchive.h"
michael@0 12 #include "nsNetUtil.h"
michael@0 13
michael@0 14 namespace mozilla {
michael@0 15
michael@0 16 nsIFile *Omnijar::sPath[2] = { nullptr, nullptr };
michael@0 17 nsZipArchive *Omnijar::sReader[2] = { nullptr, nullptr };
michael@0 18 bool Omnijar::sInitialized = false;
michael@0 19 static bool sIsUnified = false;
michael@0 20 static bool sIsNested[2] = { false, false };
michael@0 21
michael@0 22 static const char *sProp[2] =
michael@0 23 { NS_GRE_DIR, NS_XPCOM_CURRENT_PROCESS_DIR };
michael@0 24
michael@0 25 #define SPROP(Type) ((Type == mozilla::Omnijar::GRE) ? sProp[GRE] : sProp[APP])
michael@0 26
michael@0 27 void
michael@0 28 Omnijar::CleanUpOne(Type aType)
michael@0 29 {
michael@0 30 if (sReader[aType]) {
michael@0 31 sReader[aType]->CloseArchive();
michael@0 32 NS_IF_RELEASE(sReader[aType]);
michael@0 33 }
michael@0 34 sReader[aType] = nullptr;
michael@0 35 NS_IF_RELEASE(sPath[aType]);
michael@0 36 }
michael@0 37
michael@0 38 void
michael@0 39 Omnijar::InitOne(nsIFile *aPath, Type aType)
michael@0 40 {
michael@0 41 nsCOMPtr<nsIFile> file;
michael@0 42 if (aPath) {
michael@0 43 file = aPath;
michael@0 44 } else {
michael@0 45 nsCOMPtr<nsIFile> dir;
michael@0 46 nsDirectoryService::gService->Get(SPROP(aType), NS_GET_IID(nsIFile), getter_AddRefs(dir));
michael@0 47 NS_NAMED_LITERAL_CSTRING (kOmnijarName, NS_STRINGIFY(OMNIJAR_NAME));
michael@0 48 if (NS_FAILED(dir->Clone(getter_AddRefs(file))) ||
michael@0 49 NS_FAILED(file->AppendNative(kOmnijarName)))
michael@0 50 return;
michael@0 51 }
michael@0 52 bool isFile;
michael@0 53 if (NS_FAILED(file->IsFile(&isFile)) || !isFile) {
michael@0 54 // If we're not using an omni.jar for GRE, and we don't have an
michael@0 55 // omni.jar for APP, check if both directories are the same.
michael@0 56 if ((aType == APP) && (!sPath[GRE])) {
michael@0 57 nsCOMPtr<nsIFile> greDir, appDir;
michael@0 58 bool equals;
michael@0 59 nsDirectoryService::gService->Get(SPROP(GRE), NS_GET_IID(nsIFile), getter_AddRefs(greDir));
michael@0 60 nsDirectoryService::gService->Get(SPROP(APP), NS_GET_IID(nsIFile), getter_AddRefs(appDir));
michael@0 61 if (NS_SUCCEEDED(greDir->Equals(appDir, &equals)) && equals)
michael@0 62 sIsUnified = true;
michael@0 63 }
michael@0 64 return;
michael@0 65 }
michael@0 66
michael@0 67 bool equals;
michael@0 68 if ((aType == APP) && (sPath[GRE]) &&
michael@0 69 NS_SUCCEEDED(sPath[GRE]->Equals(file, &equals)) && equals) {
michael@0 70 // If we're using omni.jar on both GRE and APP and their path
michael@0 71 // is the same, we're in the unified case.
michael@0 72 sIsUnified = true;
michael@0 73 return;
michael@0 74 }
michael@0 75
michael@0 76 nsRefPtr<nsZipArchive> zipReader = new nsZipArchive();
michael@0 77 if (NS_FAILED(zipReader->OpenArchive(file))) {
michael@0 78 return;
michael@0 79 }
michael@0 80
michael@0 81 nsRefPtr<nsZipHandle> handle;
michael@0 82 if (NS_SUCCEEDED(nsZipHandle::Init(zipReader, NS_STRINGIFY(OMNIJAR_NAME), getter_AddRefs(handle)))) {
michael@0 83 zipReader = new nsZipArchive();
michael@0 84 if (NS_FAILED(zipReader->OpenArchive(handle)))
michael@0 85 return;
michael@0 86 sIsNested[aType] = true;
michael@0 87 }
michael@0 88
michael@0 89 CleanUpOne(aType);
michael@0 90 sReader[aType] = zipReader;
michael@0 91 NS_IF_ADDREF(sReader[aType]);
michael@0 92 sPath[aType] = file;
michael@0 93 NS_IF_ADDREF(sPath[aType]);
michael@0 94 }
michael@0 95
michael@0 96 void
michael@0 97 Omnijar::Init(nsIFile *aGrePath, nsIFile *aAppPath)
michael@0 98 {
michael@0 99 InitOne(aGrePath, GRE);
michael@0 100 InitOne(aAppPath, APP);
michael@0 101 sInitialized = true;
michael@0 102 }
michael@0 103
michael@0 104 void
michael@0 105 Omnijar::CleanUp()
michael@0 106 {
michael@0 107 CleanUpOne(GRE);
michael@0 108 CleanUpOne(APP);
michael@0 109 sInitialized = false;
michael@0 110 }
michael@0 111
michael@0 112 already_AddRefed<nsZipArchive>
michael@0 113 Omnijar::GetReader(nsIFile *aPath)
michael@0 114 {
michael@0 115 NS_ABORT_IF_FALSE(IsInitialized(), "Omnijar not initialized");
michael@0 116
michael@0 117 bool equals;
michael@0 118 nsresult rv;
michael@0 119
michael@0 120 if (sPath[GRE] && !sIsNested[GRE]) {
michael@0 121 rv = sPath[GRE]->Equals(aPath, &equals);
michael@0 122 if (NS_SUCCEEDED(rv) && equals)
michael@0 123 return GetReader(GRE);
michael@0 124 }
michael@0 125 if (sPath[APP] && !sIsNested[APP]) {
michael@0 126 rv = sPath[APP]->Equals(aPath, &equals);
michael@0 127 if (NS_SUCCEEDED(rv) && equals)
michael@0 128 return GetReader(APP);
michael@0 129 }
michael@0 130 return nullptr;
michael@0 131 }
michael@0 132
michael@0 133 nsresult
michael@0 134 Omnijar::GetURIString(Type aType, nsACString &result)
michael@0 135 {
michael@0 136 NS_ABORT_IF_FALSE(IsInitialized(), "Omnijar not initialized");
michael@0 137
michael@0 138 result.Truncate();
michael@0 139
michael@0 140 // Return an empty string for APP in the unified case.
michael@0 141 if ((aType == APP) && sIsUnified) {
michael@0 142 return NS_OK;
michael@0 143 }
michael@0 144
michael@0 145 nsAutoCString omniJarSpec;
michael@0 146 if (sPath[aType]) {
michael@0 147 nsresult rv = NS_GetURLSpecFromActualFile(sPath[aType], omniJarSpec);
michael@0 148 if (NS_WARN_IF(NS_FAILED(rv)))
michael@0 149 return rv;
michael@0 150
michael@0 151 result = "jar:";
michael@0 152 if (sIsNested[aType])
michael@0 153 result += "jar:";
michael@0 154 result += omniJarSpec;
michael@0 155 result += "!";
michael@0 156 if (sIsNested[aType])
michael@0 157 result += "/" NS_STRINGIFY(OMNIJAR_NAME) "!";
michael@0 158 } else {
michael@0 159 nsCOMPtr<nsIFile> dir;
michael@0 160 nsDirectoryService::gService->Get(SPROP(aType), NS_GET_IID(nsIFile), getter_AddRefs(dir));
michael@0 161 nsresult rv = NS_GetURLSpecFromActualFile(dir, result);
michael@0 162 if (NS_WARN_IF(NS_FAILED(rv)))
michael@0 163 return rv;
michael@0 164 }
michael@0 165 result += "/";
michael@0 166 return NS_OK;
michael@0 167 }
michael@0 168
michael@0 169 } /* namespace mozilla */

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