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
|
// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif
#include "chrome/browser/ash/app_list/arc/intent.h"
#include <cinttypes>
#include <string_view>
#include "base/containers/contains.h"
#include "base/logging.h"
#include "base/memory/ptr_util.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/time/time.h"
namespace arc {
namespace {
constexpr char kActionMain[] = "android.intent.action.MAIN";
}
constexpr char kInitialStartParam[] = "initialStart";
constexpr char kCategoryLauncher[] = "android.intent.category.LAUNCHER";
constexpr char kRequestStartTimeParamKey[] = "S.org.chromium.arc.request.start";
constexpr char kRequestDeferredStartTimeParamKey[] =
"S.org.chromium.arc.request.deferred.start";
// Intent labels, kept in sorted order.
constexpr char kAction[] = "action";
constexpr char kCategory[] = "category";
constexpr char kComponent[] = "component";
constexpr char kEndSuffix[] = "end";
constexpr char kIntentPrefix[] = "#Intent";
constexpr char kLaunchFlags[] = "launchFlags";
Intent::Intent() = default;
Intent::~Intent() = default;
// static
std::unique_ptr<Intent> Intent::Get(const std::string& intent_as_string) {
const std::vector<std::string_view> parts = base::SplitStringPiece(
intent_as_string, ";", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
if (parts.size() < 2 || parts.front() != kIntentPrefix ||
parts.back() != kEndSuffix) {
DVLOG(1) << "Failed to split intent " << intent_as_string << ".";
return nullptr;
}
auto intent = base::WrapUnique(new Intent());
for (size_t i = 1; i < parts.size() - 1; ++i) {
const size_t separator = parts[i].find('=');
if (separator == std::string::npos) {
if (parts[i].empty()) {
// Intent should not have empty param. The empty param would appear in
// intent string as ';;'. In the last case it would cause error in
// Android framework. Such intents must not appear in the system.
DVLOG(1) << "Found empty param in " << intent_as_string << ".";
return nullptr;
}
intent->AddExtraParam(std::string(parts[i]));
continue;
}
const std::string_view key = parts[i].substr(0, separator);
const std::string_view value = parts[i].substr(separator + 1);
if (key == kAction) {
intent->set_action(std::string(value));
} else if (key == kCategory) {
intent->set_category(std::string(value));
} else if (key == kLaunchFlags) {
uint32_t launch_flags;
const bool parsed = base::HexStringToUInt(value, &launch_flags);
if (!parsed) {
DVLOG(1) << "Failed to parse launchFlags: " << value << ".";
return nullptr;
}
intent->set_launch_flags(launch_flags);
} else if (key == kComponent) {
const size_t component_separator = value.find('/');
if (component_separator == std::string::npos)
return nullptr;
intent->set_package_name(
std::string(value.substr(0, component_separator)));
const std::string_view activity_compact_name =
value.substr(component_separator + 1);
if (!activity_compact_name.empty() && activity_compact_name[0] == '.') {
std::string activity(value.substr(0, component_separator));
activity += std::string(activity_compact_name);
intent->set_activity(activity);
} else {
intent->set_activity(std::string(activity_compact_name));
}
} else {
intent->AddExtraParam(std::string(parts[i]));
}
}
return intent;
}
void Intent::AddExtraParam(const std::string& extra_param) {
extra_params_.push_back(extra_param);
}
bool Intent::HasExtraParam(const std::string& extra_param) const {
return base::Contains(extra_params_, extra_param);
}
bool Intent::GetExtraParamValue(const std::string& extra_param_key,
std::string* out) const {
const std::string find_key = extra_param_key + "=";
for (const auto& extra_param : extra_params()) {
if (!extra_param.find(find_key)) {
*out = extra_param.substr(find_key.length());
return true;
}
}
return false;
}
std::string GetLaunchIntent(const std::string& package_name,
const std::string& activity,
const std::vector<std::string>& extra_params) {
const std::string extra_params_extracted =
extra_params.empty() ? std::string()
: (base::JoinString(extra_params, ";") + ";");
// Remove the |package_name| prefix, if activity starts with it.
const char* activity_compact_name =
activity.find(package_name.c_str()) == 0
? activity.c_str() + package_name.length()
: activity.c_str();
// Construct a string in format:
// #Intent;action=android.intent.action.MAIN;
// category=android.intent.category.LAUNCHER;
// launchFlags=0x10210000;
// component=package_name/activity;
// param1;param2;end
return base::StringPrintf(
"%s;%s=%s;%s=%s;%s=0x%x;%s=%s/%s;%s%s", kIntentPrefix, kAction,
kActionMain, kCategory, kCategoryLauncher, kLaunchFlags,
Intent::FLAG_ACTIVITY_NEW_TASK |
Intent::FLAG_ACTIVITY_RESET_TASK_IF_NEEDED,
kComponent, package_name.c_str(), activity_compact_name,
extra_params_extracted.c_str(), kEndSuffix);
}
std::string AppendLaunchIntent(const std::string& launch_intent,
const std::vector<std::string>& extra_params) {
size_t insert_point = launch_intent.rfind(';');
if (insert_point == std::string::npos) {
LOG(ERROR) << "Failed to append invalid intent " << launch_intent;
return launch_intent;
}
++insert_point;
const std::string end = launch_intent.substr(insert_point);
if (end != kEndSuffix) {
LOG(ERROR) << "Failed to append invalid intent " << launch_intent;
return launch_intent;
}
const std::string extra_params_extracted =
base::JoinString(extra_params, ";") + ';';
return launch_intent.substr(0, insert_point) + extra_params_extracted + end;
}
std::string CreateIntentTicksExtraParam(const std::string& param_key,
const base::TimeTicks& ticks) {
return base::StringPrintf("%s=%" PRId64, param_key.c_str(),
(ticks - base::TimeTicks()).InMilliseconds());
}
} // namespace arc
|
