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
|
// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/renderer/renderer_main_platform_delegate.h"
#include "base/debug_util.h"
#import <Foundation/Foundation.h>
#import <ApplicationServices/ApplicationServices.h>
#import <Carbon/Carbon.h>
#import <Cocoa/Cocoa.h>
extern "C" {
#include <sandbox.h>
}
#include "base/mac_util.h"
#include "base/scoped_cftyperef.h"
#include "base/scoped_nsautorelease_pool.h"
#include "base/sys_info.h"
#include "chrome/common/chrome_switches.h"
#include "third_party/WebKit/WebKit/mac/WebCoreSupport/WebSystemInterface.h"
RendererMainPlatformDelegate::RendererMainPlatformDelegate(
const MainFunctionParams& parameters)
: parameters_(parameters) {
}
RendererMainPlatformDelegate::~RendererMainPlatformDelegate() {
}
// Warmup System APIs that empirically need to be accessed before the Sandbox
// is turned on.
// This method is layed out in blocks, each one containing a separate function
// that needs to be warmed up. The OS version on which we found the need to
// enable the function is also noted.
// This function is tested on the following OS versions:
// 10.5.6, 10.6 seed release
void SandboxWarmup() {
base::ScopedNSAutoreleasePool scoped_pool;
{ // CGColorSpaceCreateWithName(), CGBitmapContextCreate(),
// scaled CoreUI controls - 10.5.6
CGColorSpaceRef rgb_colorspace =
CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
// Allocate a 1 byte image.
char data[8];
CGContextRef tmp = CGBitmapContextCreate(data, 1, 1, 8, 1*8,
rgb_colorspace,
kCGImageAlphaPremultipliedFirst |
kCGBitmapByteOrder32Host);
// Draw scaled controls - http://crbug.com/11325 . The scaled CoreUI
// controls seem to be cached somewhere, so if you change this and
// everything still seems to work, it's possible that you broke something
// and just didn't notice it yet. See bug for details.
CGContextScaleCTM(tmp, 1.1, 1.1); // Anything != 1.0 will do.
HIThemeButtonDrawInfo btnInfo = {0};
CGRect rect = CGRectMake(0, 0, 1, 1);
ThemeButtonKind buttonKinds[] = {
kThemePushButton,
kThemeCheckBox,
kThemeRadioButton
};
ThemeDrawState buttonStates[] = {
kThemeStateInactive,
kThemeStateActive,
kThemeStatePressed
};
for (size_t i = 0; i < arraysize(buttonKinds); ++i) {
btnInfo.kind = buttonKinds[i];
for (size_t j = 0; j < arraysize(buttonKinds); ++j) {
btnInfo.state = buttonStates[j];
HIThemeDrawButton(&rect,
&btnInfo,
tmp,
kHIThemeOrientationNormal,
NULL);
}
}
CGColorSpaceRelease(rgb_colorspace);
CGContextRelease(tmp);
}
{ // [-NSColor colorUsingColorSpaceName] - 10.5.6
NSColor *color = [NSColor controlTextColor];
[color colorUsingColorSpaceName:NSCalibratedRGBColorSpace];
}
{ // localtime() - 10.5.6
time_t tv = {0};
localtime(&tv);
}
{ // CGImageSourceGetStatus() - 10.6 seed release.
// Create a png with just enough data to get everything warmed up...
char png_header[] = {0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A};
NSData *data = [NSData dataWithBytes:png_header
length:arraysize(png_header)];
scoped_cftyperef<CGImageSourceRef> img(
CGImageSourceCreateWithData((CFDataRef)data,
NULL));
CGImageSourceGetStatus(img);
}
}
// TODO(mac-port): Any code needed to initialize a process for
// purposes of running a renderer needs to also be reflected in
// chrome_dll_main.cc for --single-process support.
void RendererMainPlatformDelegate::PlatformInitialize() {
// Load WebKit system interfaces.
InitWebCoreSystemInterface();
// Warmup APIs before turning on the Sandbox.
SandboxWarmup();
#if 0
// Note: by default, Cocoa is NOT thread safe. Use of NSThreads
// tells Cocoa to be MT-aware and create and use locks. The
// renderer process only uses Cocoa from the single renderer thread,
// so we don't need to tell Cocoa we are using threads (even though,
// oddly, we are using Cocoa from the non-main thread.)
// The current limit of renderer processes is 20. Brett states that
// (despite comments to the contrary) when two tabs are using the
// same renderer, we do NOT create a 2nd renderer thread in that
// process. Thus, we don't need to MT-aware Cocoa.
// (Code and comments left here in case that changes.)
if (![NSThread isMultiThreaded]) {
NSString *string = @"";
[NSThread detachNewThreadSelector:@selector(length)
toTarget:string
withObject:nil];
}
#endif
// Initialize Cocoa. Without this call, drawing of native UI
// elements (e.g. buttons) in WebKit will explode.
[NSApplication sharedApplication];
}
void RendererMainPlatformDelegate::PlatformUninitialize() {
}
bool RendererMainPlatformDelegate::InitSandboxTests(bool no_sandbox) {
return true;
}
bool RendererMainPlatformDelegate::EnableSandbox() {
// This call doesn't work when the sandbox is enabled, the implementation
// caches it's return value so we call it here and then future calls will
// succeed.
DebugUtil::BeingDebugged();
// Cache the System info information, since we can't query certain attributes
// with the Sandbox enabled.
base::SysInfo::CacheSysInfo();
// For the renderer, we give it a custom sandbox to lock down as tight as
// possible, but still be able to draw.
NSString* sandbox_profile_path =
[mac_util::MainAppBundle() pathForResource:@"renderer" ofType:@"sb"];
BOOL is_dir = NO;
if (![[NSFileManager defaultManager] fileExistsAtPath:sandbox_profile_path
isDirectory:&is_dir] || is_dir) {
LOG(ERROR) << "Failed to find the sandbox profile on disk";
return false;
}
const char *sandbox_profile = [sandbox_profile_path fileSystemRepresentation];
char* error_buff = NULL;
int error = sandbox_init(sandbox_profile, SANDBOX_NAMED_EXTERNAL,
&error_buff);
bool success = (error == 0 && error_buff == NULL);
if (error == -1) {
LOG(ERROR) << "Failed to Initialize Sandbox: " << error_buff;
}
sandbox_free_error(error_buff);
return success;
}
void RendererMainPlatformDelegate::RunSandboxTests() {
// TODO(port): Run sandbox unit test here.
}
|
