repos/FeepingCreaturism/FeepingCreaturism.cpp

// Feeping Creaturism
//
// Douglas Thrift
//
// $Id$

#include "Environment.hpp"
#include "Matcher.hpp"
#include "Jargon.hpp"

#include <menes-api/exename.hpp>
#include <menes-app/simple.hpp>

int Main(const app::Options& options)
{
        FeepingCreaturism::program = api::GetExecutablePath().GetName();

        FeepingCreaturism creaturism;

        return 0;
}

FeepingCreaturism::FeepingCreaturism()
{
        initialize();
        parse();

        ext::String path(env.get("PATH_INFO"));
        Matcher matcher;

        if (path == matcher("^/daily/(\\d{4}-\\d{2}-\\d{2})?$"))
        {
                daily(matcher.size() > 1 ? matcher[1] : "");
        }
        else if (path == matcher("^/random/(\\d+)?$"))
        {
                random(matcher.size() > 1 ? matcher[1] : "");
        }
        else if (path == matcher("^/(" + this->matcher + ")$"))
        {
                select(matcher[1], true);
        }
        else
        {
                api::Cout << "Location: http://" << env.get("HTTP_HOST")
                        << env.get("SCRIPT_NAME") << "/daily/\r\n\r\n";
        }
}

ext::String FeepingCreaturism::program;

bool FeepingCreaturism::CaseLess::operator()(const std::string& one,
        const std::string& two)
{
        std::string one_(one), two_(two);

        // XXX: should be std::tolower except g++34 doesn't believe it
        std::transform(one.begin(), one.end(), one_.begin(), ::tolower);
        std::transform(two.begin(), two.end(), two_.begin(), ::tolower);

        if (one_ == two_) return one < two;

        return one_ < two_;
}

void FeepingCreaturism::initialize()
{
        _H<xml::Document> document(xml::Parse("jargon.xml"));
        _H<xml::Node> node(*document/"feepingcreaturism");

        this->path = *node/"jargon";
        this->matcher = *node/"matcher";

        _L<ext::String> args(1, this->path);

        args.InsertLast("-type");
        args.InsertLast("f");

        _S<api::Process> find("/usr/bin/find", args);
        Matcher matcher("^" + this->path + "/(" + this->matcher + ")$");
        ext::String path;

        while (ios::ReadLine(*find.GetReader(), path)) if (matcher == path)
        {
                jargon.insert(matcher[1]);
        }

        find.Join();
}

void FeepingCreaturism::parse()
{
        std::stringstream query(env.get("QUERY_STRING"));

        if (env.get("REQUEST_METHOD") == "POST")
        {
                std::streamsize length(lexical_cast<std::streamsize>(env.get("CONTENT_"
                        "TYPE")));
                char* content(new char[length]);

                api::Cin.Read(content, length);
                query.write(content, length);

                delete [] content;
        }

        if (query.str().empty()) return;

        do
        {
                std::string name, value;

                std::getline(query, name, '=');
                std::getline(query, value, '&');

                cgi.insert(_P(name, value));
        }
        while (query.good());
}

void FeepingCreaturism::daily(const ext::String& date)
{
        std::time_t when(std::time(NULL));
        std::tm* day(std::localtime(&when));

        day->tm_sec = 0;
        day->tm_min = 0;
        day->tm_hour = 0;

        if (!date.IsEmpty()) ::strptime(date.NullTerminate(), "%Y-%m-%d", day);

        std::time_t difference(mktime(day) / 86400);
        std::vector<ext::String> jargon(this->jargon.begin(), this->jargon.end());
        ext::String entry(jargon.size() ? jargon[difference % jargon.size()] : "");

        select(entry);
}

void FeepingCreaturism::random(const ext::String& number)
{
        ::srandomdev();

        std::vector<ext::String> jargon(this->jargon.begin(), this->jargon.end());
        std::vector<ext::String>::size_type random(number.IsEmpty() ? ::random() :
                lexical_cast<std::vector<ext::String>::size_type>(number));

        assert(random >= 0);
        assert(random % jargon.size() < jargon.size());

        ext::String entry(jargon.size() ? jargon[random % jargon.size()] : "");

        select(entry);
}

void FeepingCreaturism::select(const ext::String& selection, bool validate)
{
        if (!validate || jargon.find(selection) != jargon.end())
        {
                api::Cout << "Content-Type: text/html; charset=UTF-8\r\n\r\n";

                Jargon jargon(path, selection, cgi.find("include") != cgi.end()
                        && lexical_cast<bool>(ext::String(cgi.find("include")->second)),
                        cgi.find("relative") != cgi.end()
                        ? ext::String(cgi.find("relative")->second) : ext::String());

                api::Cout << jargon;
        }
        else
        {
                api::Cout << "Status: 404\r\n"
                        << "Content-Type: text/html; charset=ISO-8859-1\r\n\r\n"
                        << "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n"
                        << "<html><head>\n<title>404 Not Found</title>\n</head><body>\n"
                        << "<h1>Not Found</h1>\n<p>The requested URL "
                        << env.get("PATH_INFO") << " was not found on this server.</p>\n"
                        << "<hr />\n" << env.get("SERVER_SIGNATURE") << "</body></html>\n";
        }
}
Revision:	270
Committed:	2004-10-27T23:44:48-07:00 (20 years, 7 months ago) by Douglas Thrift
File size:	4274 byte(s)
Log Message:	Join for now.
#	User	Rev	Content
1	Douglas Thrift	191	// Feeping Creaturism
2			//
3			// Douglas Thrift
4			//
5			// $Id$
6
7	Douglas Thrift	194	#include "Environment.hpp"
8			#include "Matcher.hpp"
9	Douglas Thrift	196	#include "Jargon.hpp"
10	Douglas Thrift	191
11	Douglas Thrift	261	#include <menes-api/exename.hpp>
12			#include <menes-app/simple.hpp>
13
14			int Main(const app::Options& options)
15	Douglas Thrift	191	{
16	Douglas Thrift	261	FeepingCreaturism::program = api::GetExecutablePath().GetName();
17	Douglas Thrift	201
18	Douglas Thrift	251	FeepingCreaturism creaturism;
19	Douglas Thrift	191
20	Douglas Thrift	251	return 0;
21			}
22	Douglas Thrift	194
23			FeepingCreaturism::FeepingCreaturism()
24			{
25			initialize();
26	Douglas Thrift	203	parse();
27	Douglas Thrift	194
28	Douglas Thrift	203	ext::String path(env.get("PATH_INFO"));
29	Douglas Thrift	194	Matcher matcher;
30
31	Douglas Thrift	211	if (path == matcher("^/daily/(\\d{4}-\\d{2}-\\d{2})?$"))
32	Douglas Thrift	194	{
33	Douglas Thrift	211	daily(matcher.size() > 1 ? matcher[1] : "");
34	Douglas Thrift	194	}
35	Douglas Thrift	211	else if (path == matcher("^/random/(\\d+)?$"))
36			{
37			random(matcher.size() > 1 ? matcher[1] : "");
38			}
39	Douglas Thrift	194	else if (path == matcher("^/(" + this->matcher + ")$"))
40			{
41			select(matcher[1], true);
42			}
43	Douglas Thrift	198	else
44			{
45	Douglas Thrift	203	api::Cout << "Location: http://" << env.get("HTTP_HOST")
46	Douglas Thrift	202	<< env.get("SCRIPT_NAME") << "/daily/\r\n\r\n";
47	Douglas Thrift	198	}
48	Douglas Thrift	194	}
49
50	Douglas Thrift	203	ext::String FeepingCreaturism::program;
51	Douglas Thrift	201
52	Douglas Thrift	206	bool FeepingCreaturism::CaseLess::operator()(const std::string& one,
53			const std::string& two)
54			{
55			std::string one_(one), two_(two);
56
57			// XXX: should be std::tolower except g++34 doesn't believe it
58			std::transform(one.begin(), one.end(), one_.begin(), ::tolower);
59			std::transform(two.begin(), two.end(), two_.begin(), ::tolower);
60
61	Douglas Thrift	255	if (one_ == two_) return one < two;
62
63	Douglas Thrift	206	return one_ < two_;
64			}
65
66	Douglas Thrift	194	void FeepingCreaturism::initialize()
67			{
68	Douglas Thrift	265	_H<xml::Document> document(xml::Parse("jargon.xml"));
69			_H<xml::Node> node(*document/"feepingcreaturism");
70	Douglas Thrift	194
71	Douglas Thrift	201	this->path = *node/"jargon";
72			this->matcher = *node/"matcher";
73	Douglas Thrift	194
74	Douglas Thrift	265	_L<ext::String> args(1, this->path);
75	Douglas Thrift	194
76	Douglas Thrift	265	args.InsertLast("-type");
77			args.InsertLast("f");
78	Douglas Thrift	194
79	Douglas Thrift	265	_S<api::Process> find("/usr/bin/find", args);
80	Douglas Thrift	203	Matcher matcher("^" + this->path + "/(" + this->matcher + ")$");
81	Douglas Thrift	265	ext::String path;
82	Douglas Thrift	194
83	Douglas Thrift	265	while (ios::ReadLine(*find.GetReader(), path)) if (matcher == path)
84	Douglas Thrift	196	{
85	Douglas Thrift	265	jargon.insert(matcher[1]);
86	Douglas Thrift	196	}
87	Douglas Thrift	270
88			find.Join();
89	Douglas Thrift	194	}
90
91	Douglas Thrift	203	void FeepingCreaturism::parse()
92			{
93			std::stringstream query(env.get("QUERY_STRING"));
94
95			if (env.get("REQUEST_METHOD") == "POST")
96			{
97			std::streamsize length(lexical_cast<std::streamsize>(env.get("CONTENT_"
98			"TYPE")));
99			char* content(new char[length]);
100
101			api::Cin.Read(content, length);
102			query.write(content, length);
103
104			delete [] content;
105			}
106
107			if (query.str().empty()) return;
108
109			do
110			{
111			std::string name, value;
112
113			std::getline(query, name, '=');
114			std::getline(query, value, '&');
115
116			cgi.insert(_P(name, value));
117			}
118			while (query.good());
119			}
120
121	Douglas Thrift	211	void FeepingCreaturism::daily(const ext::String& date)
122	Douglas Thrift	194	{
123			std::time_t when(std::time(NULL));
124	Douglas Thrift	211	std::tm* day(std::localtime(&when));
125	Douglas Thrift	194
126	Douglas Thrift	211	day->tm_sec = 0;
127			day->tm_min = 0;
128			day->tm_hour = 0;
129	Douglas Thrift	194
130	Douglas Thrift	211	if (!date.IsEmpty()) ::strptime(date.NullTerminate(), "%Y-%m-%d", day);
131
132			std::time_t difference(mktime(day) / 86400);
133	Douglas Thrift	203	std::vector<ext::String> jargon(this->jargon.begin(), this->jargon.end());
134			ext::String entry(jargon.size() ? jargon[difference % jargon.size()] : "");
135	Douglas Thrift	194
136			select(entry);
137			}
138
139	Douglas Thrift	211	void FeepingCreaturism::random(const ext::String& number)
140	Douglas Thrift	194	{
141			::srandomdev();
142
143	Douglas Thrift	203	std::vector<ext::String> jargon(this->jargon.begin(), this->jargon.end());
144	Douglas Thrift	211	std::vector<ext::String>::size_type random(number.IsEmpty() ? ::random() :
145			lexical_cast<std::vector<ext::String>::size_type>(number));
146	Douglas Thrift	194
147	Douglas Thrift	211	assert(random >= 0);
148			assert(random % jargon.size() < jargon.size());
149
150			ext::String entry(jargon.size() ? jargon[random % jargon.size()] : "");
151
152	Douglas Thrift	194	select(entry);
153			}
154
155	Douglas Thrift	203	void FeepingCreaturism::select(const ext::String& selection, bool validate)
156	Douglas Thrift	194	{
157			if (!validate \|\| jargon.find(selection) != jargon.end())
158			{
159	Douglas Thrift	203	api::Cout << "Content-Type: text/html; charset=UTF-8\r\n\r\n";
160	Douglas Thrift	196
161	Douglas Thrift	230	Jargon jargon(path, selection, cgi.find("include") != cgi.end()
162	Douglas Thrift	229	&& lexical_cast<bool>(ext::String(cgi.find("include")->second)),
163			cgi.find("relative") != cgi.end()
164			? ext::String(cgi.find("relative")->second) : ext::String());
165	Douglas Thrift	196
166	Douglas Thrift	225	api::Cout << jargon;
167	Douglas Thrift	194	}
168	Douglas Thrift	195	else
169			{
170	Douglas Thrift	203	api::Cout << "Status: 404\r\n"
171			<< "Content-Type: text/html; charset=ISO-8859-1\r\n\r\n"
172			<< "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n"
173	Douglas Thrift	195	<< "<html><head>\n<title>404 Not Found</title>\n</head><body>\n"
174			<< "<h1>Not Found</h1>\n<p>The requested URL "
175			<< env.get("PATH_INFO") << " was not found on this server.</p>\n"
176			<< "<hr />\n" << env.get("SERVER_SIGNATURE") << "</body></html>\n";
177			}
178	Douglas Thrift	194	}