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
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* 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 "HostUtil.hpp"
#include <common/ConfigUtil.hpp>
#include <common/Log.hpp>
Util::RegexListMatcher HostUtil::WopiHosts;
std::map<std::string, std::string> HostUtil::AliasHosts;
std::set<std::string> HostUtil::AllHosts;
std::string HostUtil::FirstHost;
bool HostUtil::WopiEnabled;
void HostUtil::parseWopiHost(Poco::Util::LayeredConfiguration& conf)
{
// Parse the WOPI settings.
WopiHosts.clear();
WopiEnabled = conf.getBool("storage.wopi[@allow]", false);
if (WopiEnabled)
{
for (size_t i = 0;; ++i)
{
const std::string path = "storage.wopi.host[" + std::to_string(i) + ']';
if (!conf.has(path))
{
break;
}
HostUtil::addWopiHost(conf.getString(path, ""),
conf.getBool(path + "[@allow]", false));
}
}
}
void HostUtil::addWopiHost(std::string host, bool allow)
{
if (!host.empty())
{
if (allow)
{
LOG_INF("Adding trusted WOPI host: [" << host << "].");
WopiHosts.allow(host);
}
else
{
LOG_INF("Adding blocked WOPI host: [" << host << "].");
WopiHosts.deny(host);
}
}
}
bool HostUtil::allowedWopiHost(const std::string& host)
{
return WopiEnabled && WopiHosts.match(host);
}
bool HostUtil::allowedAlias(const Poco::URI& uri)
{
if (Util::iequal(config::getString("storage.wopi.alias_groups[@mode]", "first"), "compat"))
{
return true;
}
if (AllHosts.empty())
{
if (FirstHost.empty())
{
FirstHost = uri.getAuthority();
}
else if (FirstHost != uri.getAuthority())
{
LOG_ERR("Only allowed host is: " << FirstHost);
return false;
}
}
else if (!Util::matchRegex(AllHosts, uri.getAuthority()))
{
LOG_ERR("Host: " << uri.getAuthority()
<< " is not allowed, It is not part of alias_groups configuration");
return false;
}
return true;
}
void HostUtil::parseAliases(Poco::Util::LayeredConfiguration& conf)
{
//set alias_groups mode to compat
if (!conf.has("storage.wopi.alias_groups"))
{
conf.setString("storage.wopi.alias_groups[@mode]", "compat");
}
else if (conf.has("storage.wopi.alias_groups.group[0]"))
{
// group defined in alias_groups
if (Util::iequal(config::getString("storage.wopi.alias_groups[@mode]", "first"), "first"))
{
LOG_ERR("Admins didnot set the alias_groups mode to 'groups'");
AliasHosts.clear();
AllHosts.clear();
return;
}
}
AliasHosts.clear();
AllHosts.clear();
for (size_t i = 0;; i++)
{
const std::string path = "storage.wopi.alias_groups.group[" + std::to_string(i) + ']';
if (!conf.has(path + ".host"))
{
break;
}
const std::string uri = conf.getString(path + ".host", "");
if (uri.empty())
{
continue;
}
bool allow = conf.getBool(path + ".host[@allow]", false);
try
{
const Poco::URI realUri(uri);
HostUtil::addWopiHost(realUri.getHost(), allow);
AllHosts.insert(realUri.getAuthority());
}
catch (const Poco::Exception& exc)
{
LOG_WRN("parseAliases: " << exc.displayText());
}
for (size_t j = 0;; j++)
{
const std::string aliasPath = path + ".alias[" + std::to_string(j) + ']';
if (!conf.has(aliasPath))
{
break;
}
try
{
const Poco::URI aliasUri(conf.getString(aliasPath, ""));
if (aliasUri.empty())
{
continue;
}
const Poco::URI realUri(uri);
AliasHosts.insert({ aliasUri.getAuthority(), realUri.getAuthority() });
AllHosts.insert(aliasUri.getAuthority());
HostUtil::addWopiHost(aliasUri.getHost(), allow);
}
catch (const Poco::Exception& exc)
{
LOG_WRN("parseAliases: " << exc.displayText());
}
}
}
}
std::string HostUtil::getNewUri(const Poco::URI& uri)
{
if (Util::iequal(config::getString("storage.wopi.alias_groups[@mode]", "first"), "compat"))
{
return uri.getPath();
}
Poco::URI newUri(uri);
const std::string key = newUri.getAuthority();
if (Util::matchRegex(AliasHosts, key))
{
newUri.setAuthority(AliasHosts[key]);
}
if (newUri.getAuthority().empty())
{
return newUri.getPath();
}
return newUri.getScheme() + "://" + newUri.getHost() + ':' + std::to_string(newUri.getPort()) +
newUri.getPath();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
