1 /*
2 * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include "Package.h"
27 #include "Executor.h"
28 #include "AppLauncher.h"
29 #include "ErrorHandling.h"
30
31
Package()32 Package::Package(): type(Unknown) {
33 }
34
35
36 namespace {
37 class FirstLineConsumer : public CommandOutputConsumer {
38 public:
FirstLineConsumer()39 FirstLineConsumer(): processed(false) {
40 }
41
accept(const std::string & line)42 virtual bool accept(const std::string& line) {
43 if (!processed) {
44 value = line;
45 processed = true;
46 }
47 return processed;
48 };
49
getValue() const50 std::string getValue() const {
51 if (!processed) {
52 JP_THROW("No output captured");
53 }
54 return value;
55 }
56
57 private:
58 bool processed;
59 std::string value;
60 };
61
62
findOwnerOfFile(const std::nothrow_t &,const std::string & cmdline,const std::string & path)63 std::string findOwnerOfFile(const std::nothrow_t&, const std::string& cmdline,
64 const std::string& path) {
65 try {
66 FirstLineConsumer consumer;
67 int exitCode = executeCommandLineAndReadStdout(
68 cmdline + " \'" + path + "\' 2>/dev/null", consumer);
69 if (exitCode == 0) {
70 return consumer.getValue();
71 }
72 } catch (...) {
73 }
74 return "";
75 }
76
77 } // namespace
78
findOwnerOfFile(const std::string & path)79 Package Package::findOwnerOfFile(const std::string& path) {
80 Package result;
81 result.theName = ::findOwnerOfFile(std::nothrow,
82 "rpm --queryformat '%{NAME}' -qf", path);
83 if (!result.theName.empty()) {
84 result.type = RPM;
85 } else {
86 tstring_array components = tstrings::split(::findOwnerOfFile(
87 std::nothrow, "dpkg -S", path), ":");
88 if (!components.empty()) {
89 result.theName = components.front();
90 if (!result.theName.empty()) {
91 result.type = DEB;
92 }
93 }
94 }
95
96 return result;
97 }
98
99
100 namespace {
101 class AppLauncherInitializer : public CommandOutputConsumer {
102 public:
AppLauncherInitializer()103 AppLauncherInitializer() {
104 }
105
accept(const std::string & line)106 virtual bool accept(const std::string& line) {
107 if (appDir.empty()) {
108 if (tstrings::endsWith(line, "/app")) {
109 appDir = line;
110 }
111 }
112
113 if (runtimeDir.empty()) {
114 if (tstrings::endsWith(line, "/runtime")) {
115 runtimeDir = line;
116 }
117 }
118
119 return !appDir.empty() && !runtimeDir.empty();
120 };
121
apply(AppLauncher & launcher)122 void apply(AppLauncher& launcher) {
123 launcher.setDefaultRuntimePath(runtimeDir);
124 launcher.setAppDir(appDir);
125 }
126
127 private:
128 std::string appDir;
129 std::string runtimeDir;
130 };
131
132 } // namespace
133
initAppLauncher(AppLauncher & appLauncher) const134 void Package::initAppLauncher(AppLauncher& appLauncher) const {
135 AppLauncherInitializer consumer;
136 int exitCode = -1;
137 if (type == RPM) {
138 exitCode = executeCommandLineAndReadStdout(
139 "rpm -ql \'" + theName + "\'", consumer);
140 } else if (type == DEB) {
141 exitCode = executeCommandLineAndReadStdout(
142 "dpkg -L \'" + theName + "\'", consumer);
143 }
144
145 if (exitCode == 0) {
146 consumer.apply(appLauncher);
147 }
148 }
149