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gfactoryparser.cpp
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1 //
2 // Copyright (C) 2001-2018 Graeme Walker <graeme_walker@users.sourceforge.net>
3 //
4 // This program is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, either version 3 of the License, or
7 // (at your option) any later version.
8 //
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with this program. If not, see <http://www.gnu.org/licenses/>.
16 // ===
17 //
18 // gfactoryparser.cpp
19 //
20
21 #include "gdef.h"
22 #include "gsmtp.h"
23 #include "gfactoryparser.h"
24 #include "gaddress.h"
25 #include "gresolver.h"
26 #include "gexecutablecommand.h"
27 #include "gstr.h"
28 #include "gfile.h"
29
30 GSmtp::FactoryParser::Result GSmtp::FactoryParser::parse( const std::string & identifier , bool allow_spam )
31 {
32 G_DEBUG( "GSmtp::FactoryParser::parse: [" << identifier << "]" ) ;
33 if( identifier.find("net:") == 0U )
34 {
35 return Result( "net" , G::Str::tail(identifier,":") ) ;
36 }
37 else if( allow_spam && identifier.find("spam:") == 0U )
38 {
39 return Result( "spam" , G::Str::tail(identifier,":") , 0 ) ;
40 }
41 else if( allow_spam && identifier.find("spam-edit:") == 0U )
42 {
43 return Result( "spam" , G::Str::tail(identifier,":") , 1 ) ;
44 }
45 else if( identifier.find("file:") == 0U )
46 {
47 return Result( "file" , G::Str::tail(identifier,":") ) ;
48 }
49 else if( identifier.find("exit:") == 0U )
50 {
51 return Result( "exit" , G::Str::tail(identifier,":") ) ;
52 }
53 else if( !identifier.empty() )
54 {
55 return Result( "file" , identifier ) ;
56 }
57 else
58 {
59 return Result() ;
60 }
61 }
62
63 std::string GSmtp::FactoryParser::check( const std::string & identifier , bool allow_spam )
64 {
65 Result p = parse( identifier , allow_spam ) ;
66 if( p.first == "net" || ( allow_spam && p.first == "spam" ) )
67 {
68 return std::string() ;
69 }
70 else if( p.first == "file" )
71 {
72 G::Path exe = p.second ;
73 if( ! G::File::exists(exe,G::File::NoThrow()) )
74 return "no such file" ;
75 else if( ! G::File::executable(exe) )
76 return "probably not executable" ;
77 else if( ! exe.isAbsolute() )
78 return "not an absolute path" ;
79 else
80 return std::string() ;
81 }
82 else if( p.first == "exit" )
83 {
84 if( !G::Str::isUInt(p.second) )
85 return "not a numeric exit code" ;
86 else
87 return std::string() ;
88 }
89 else
90 {
91 return std::string() ;
92 }
93 }
94
95 GSmtp::FactoryParser::Result::Result() :
96 third(0)
97 {
98 }
99
100 GSmtp::FactoryParser::Result::Result( const std::string & first_ , const std::string & second_ ) :
101 first(first_) ,
102 second(second_) ,
103 third(0)
104 {
105 }
106
107 GSmtp::FactoryParser::Result::Result( const std::string & first_ , const std::string & second_ , int third_ ) :
108 first(first_) ,
109 second(second_) ,
110 third(third_)
111 {
112 }
113
114 /// \file gfactoryparser.cpp
G::Str::tail
static std::string tail(const std::string &in, size_type pos, const std::string &default_=std::string())
Returns the last part of the string after the given position.
Definition: gstr.cpp:1102
GSmtp::FactoryParser::Result
Result tuple for GSmtp::FactoryParser::parse().
Definition: gfactoryparser.h:41
GSmtp::FactoryParser::check
static std::string check(const std::string &identifier, bool allow_spam)
Parses and checks an identifier.
Definition: gfactoryparser.cpp:63
gfactoryparser.h
gexecutablecommand.h
G::File::executable
static bool executable(const Path &)
Returns true if the path is probably executable.
Definition: gfile_unix.cpp:79
gstr.h
gfile.h
G::Path::isAbsolute
bool isAbsolute() const
Returns !isRelative().
Definition: gpath.cpp:300
G::File::exists
static bool exists(const Path &file)
Returns true if the file (directory, device etc.) exists.
Definition: gfile.cpp:141
G::File::NoThrow
An overload discriminator class for File methods.
Definition: gfile.h:53
GSmtp::FactoryParser::parse
static Result parse(const std::string &identifier, bool allow_spam)
Parses an identifier like "/usr/bin/foo" or "net:127.0.0.1:99" returning the type and the specificati...
Definition: gfactoryparser.cpp:30
gsmtp.h
gaddress.h
G::Str::isUInt
static bool isUInt(const std::string &s)
Returns true if the string can be converted into an unsigned integer without throwing an exception...
Definition: gstr.cpp:304
G::Path
A Path object represents a file system path.
Definition: gpath.h:72
gresolver.h