1 /******************************************************************************
3 * Copyright (C) 2012-2013 Icinga Development Team (http://www.icinga.org/) *
5 * This program is free software; you can redistribute it and/or *
6 * modify it under the terms of the GNU General Public License *
7 * as published by the Free Software Foundation; either version 2 *
8 * of the License, or (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the Free Software Foundation *
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
18 ******************************************************************************/
20 #include "icinga/macroprocessor.h"
21 #include "icinga/macroresolver.h"
22 #include "base/utility.h"
23 #include "base/array.h"
24 #include "base/objectlock.h"
25 #include "base/logger_fwd.h"
26 #include <boost/tuple/tuple.hpp>
27 #include <boost/foreach.hpp>
29 using namespace icinga;
31 Value MacroProcessor::ResolveMacros(const Value& str, const std::vector<MacroResolver::Ptr>& resolvers,
32 const Dictionary::Ptr& cr, const MacroProcessor::EscapeCallback& escapeFn, const Array::Ptr& escapeMacros)
40 result = InternalResolveMacros(str, resolvers, cr, escapeFn, escapeMacros);
41 } else if (str.IsObjectType<Array>()) {
42 Array::Ptr resultArr = make_shared<Array>();
45 ObjectLock olock(arr);
47 BOOST_FOREACH(const Value& arg, arr) {
48 /* Note: don't escape macros here. */
49 resultArr->Add(InternalResolveMacros(arg, resolvers, cr, EscapeCallback(), Array::Ptr()));
54 BOOST_THROW_EXCEPTION(std::invalid_argument("Command is not a string or array."));
60 bool MacroProcessor::ResolveMacro(const String& macro, const std::vector<MacroResolver::Ptr>& resolvers,
61 const Dictionary::Ptr& cr, String *result)
63 BOOST_FOREACH(const MacroResolver::Ptr& resolver, resolvers) {
64 if (resolver->ResolveMacro(macro, cr, result))
72 String MacroProcessor::InternalResolveMacros(const String& str, const std::vector<MacroResolver::Ptr>& resolvers,
73 const Dictionary::Ptr& cr, const MacroProcessor::EscapeCallback& escapeFn, const Array::Ptr& escapeMacros)
75 size_t offset, pos_first, pos_second;
79 while ((pos_first = result.FindFirstOf("$", offset)) != String::NPos) {
80 pos_second = result.FindFirstOf("$", pos_first + 1);
82 if (pos_second == String::NPos)
83 BOOST_THROW_EXCEPTION(std::runtime_error("Closing $ not found in macro format string."));
85 String name = result.SubStr(pos_first + 1, pos_second - pos_first - 1);
87 String resolved_macro;
88 bool found = ResolveMacro(name, resolvers, cr, &resolved_macro);
90 /* $$ is an escape sequence for $. */
97 Log(LogWarning, "icinga", "Macro '" + name + "' is not defined.");
99 if (escapeFn && escapeMacros) {
102 ObjectLock olock(escapeMacros);
103 BOOST_FOREACH(const String& escapeMacro, escapeMacros) {
104 if (escapeMacro == name) {
111 resolved_macro = escapeFn(resolved_macro);
114 result.Replace(pos_first, pos_second - pos_first + 1, resolved_macro);
115 offset = pos_first + resolved_macro.GetLength();