repos/FeepingCreaturism/FeepingCreaturism.cpp

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

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

extern "C"
{
#include <sys/types.h>
#include <sys/stat.h>
#include <fts.h>
}

#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()
{
        ext::Handle<xml::Document> document(xml::Parse("jargon.xml"));
        ext::Handle<xml::Node> node(*document/"feepingcreaturism");

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

        char* path[] = { new char[this->path.GetData().GetSize()] };

        std::strcpy(path[0], this->path.NullTerminate());

        ::FTS* traversal(::fts_open(path, FTS_LOGICAL, NULL));
        Matcher matcher("^" + this->path + "/(" + this->matcher + ")$");

        if (traversal == NULL)
        {
                api::Cerr << program << ": Horrible Failure!\n";

                std::exit(1);
        }

        for (::FTSENT* entity(::fts_read(traversal)); entity != NULL;
                entity = ::fts_read(traversal))
        {
                if (entity->fts_info == FTS_F && entity->fts_path == matcher)
                {
                        jargon.insert(matcher[1]);
                }
        }

        ::fts_close(traversal);

        delete [] path[0];
}

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:	261
Committed:	2004-10-07T22:20:16-07:00 (20 years, 8 months ago) by Douglas Thrift
File size:	4617 byte(s)
Log Message:	Huzzah!
#	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	194	extern "C"
12			{
13			#include <sys/types.h>
14			#include <sys/stat.h>
15			#include <fts.h>
16			}
17
18	Douglas Thrift	261	#include <menes-api/exename.hpp>
19			#include <menes-app/simple.hpp>
20
21			int Main(const app::Options& options)
22	Douglas Thrift	191	{
23	Douglas Thrift	261	FeepingCreaturism::program = api::GetExecutablePath().GetName();
24	Douglas Thrift	201
25	Douglas Thrift	251	FeepingCreaturism creaturism;
26	Douglas Thrift	191
27	Douglas Thrift	251	return 0;
28			}
29	Douglas Thrift	194
30			FeepingCreaturism::FeepingCreaturism()
31			{
32			initialize();
33	Douglas Thrift	203	parse();
34	Douglas Thrift	194
35	Douglas Thrift	203	ext::String path(env.get("PATH_INFO"));
36	Douglas Thrift	194	Matcher matcher;
37
38	Douglas Thrift	211	if (path == matcher("^/daily/(\\d{4}-\\d{2}-\\d{2})?$"))
39	Douglas Thrift	194	{
40	Douglas Thrift	211	daily(matcher.size() > 1 ? matcher[1] : "");
41	Douglas Thrift	194	}
42	Douglas Thrift	211	else if (path == matcher("^/random/(\\d+)?$"))
43			{
44			random(matcher.size() > 1 ? matcher[1] : "");
45			}
46	Douglas Thrift	194	else if (path == matcher("^/(" + this->matcher + ")$"))
47			{
48			select(matcher[1], true);
49			}
50	Douglas Thrift	198	else
51			{
52	Douglas Thrift	203	api::Cout << "Location: http://" << env.get("HTTP_HOST")
53	Douglas Thrift	202	<< env.get("SCRIPT_NAME") << "/daily/\r\n\r\n";
54	Douglas Thrift	198	}
55	Douglas Thrift	194	}
56
57	Douglas Thrift	203	ext::String FeepingCreaturism::program;
58	Douglas Thrift	201
59	Douglas Thrift	206	bool FeepingCreaturism::CaseLess::operator()(const std::string& one,
60			const std::string& two)
61			{
62			std::string one_(one), two_(two);
63
64			// XXX: should be std::tolower except g++34 doesn't believe it
65			std::transform(one.begin(), one.end(), one_.begin(), ::tolower);
66			std::transform(two.begin(), two.end(), two_.begin(), ::tolower);
67
68	Douglas Thrift	255	if (one_ == two_) return one < two;
69
70	Douglas Thrift	206	return one_ < two_;
71			}
72
73	Douglas Thrift	194	void FeepingCreaturism::initialize()
74			{
75	Douglas Thrift	201	ext::Handle<xml::Document> document(xml::Parse("jargon.xml"));
76			ext::Handle<xml::Node> node(*document/"feepingcreaturism");
77	Douglas Thrift	194
78	Douglas Thrift	201	this->path = *node/"jargon";
79			this->matcher = *node/"matcher";
80	Douglas Thrift	194
81	Douglas Thrift	236	char* path[] = { new char[this->path.GetData().GetSize()] };
82	Douglas Thrift	194
83	Douglas Thrift	236	std::strcpy(path[0], this->path.NullTerminate());
84	Douglas Thrift	194
85			::FTS* traversal(::fts_open(path, FTS_LOGICAL, NULL));
86	Douglas Thrift	203	Matcher matcher("^" + this->path + "/(" + this->matcher + ")$");
87	Douglas Thrift	194
88	Douglas Thrift	196	if (traversal == NULL)
89			{
90	Douglas Thrift	203	api::Cerr << program << ": Horrible Failure!\n";
91	Douglas Thrift	196
92			std::exit(1);
93			}
94
95	Douglas Thrift	194	for (::FTSENT* entity(::fts_read(traversal)); entity != NULL;
96			entity = ::fts_read(traversal))
97			{
98			if (entity->fts_info == FTS_F && entity->fts_path == matcher)
99			{
100			jargon.insert(matcher[1]);
101			}
102			}
103
104			::fts_close(traversal);
105
106			delete [] path[0];
107			}
108
109	Douglas Thrift	203	void FeepingCreaturism::parse()
110			{
111			std::stringstream query(env.get("QUERY_STRING"));
112
113			if (env.get("REQUEST_METHOD") == "POST")
114			{
115			std::streamsize length(lexical_cast<std::streamsize>(env.get("CONTENT_"
116			"TYPE")));
117			char* content(new char[length]);
118
119			api::Cin.Read(content, length);
120			query.write(content, length);
121
122			delete [] content;
123			}
124
125			if (query.str().empty()) return;
126
127			do
128			{
129			std::string name, value;
130
131			std::getline(query, name, '=');
132			std::getline(query, value, '&');
133
134			cgi.insert(_P(name, value));
135			}
136			while (query.good());
137			}
138
139	Douglas Thrift	211	void FeepingCreaturism::daily(const ext::String& date)
140	Douglas Thrift	194	{
141			std::time_t when(std::time(NULL));
142	Douglas Thrift	211	std::tm* day(std::localtime(&when));
143	Douglas Thrift	194
144	Douglas Thrift	211	day->tm_sec = 0;
145			day->tm_min = 0;
146			day->tm_hour = 0;
147	Douglas Thrift	194
148	Douglas Thrift	211	if (!date.IsEmpty()) ::strptime(date.NullTerminate(), "%Y-%m-%d", day);
149
150			std::time_t difference(mktime(day) / 86400);
151	Douglas Thrift	203	std::vector<ext::String> jargon(this->jargon.begin(), this->jargon.end());
152			ext::String entry(jargon.size() ? jargon[difference % jargon.size()] : "");
153	Douglas Thrift	194
154			select(entry);
155			}
156
157	Douglas Thrift	211	void FeepingCreaturism::random(const ext::String& number)
158	Douglas Thrift	194	{
159			::srandomdev();
160
161	Douglas Thrift	203	std::vector<ext::String> jargon(this->jargon.begin(), this->jargon.end());
162	Douglas Thrift	211	std::vector<ext::String>::size_type random(number.IsEmpty() ? ::random() :
163			lexical_cast<std::vector<ext::String>::size_type>(number));
164	Douglas Thrift	194
165	Douglas Thrift	211	assert(random >= 0);
166			assert(random % jargon.size() < jargon.size());
167
168			ext::String entry(jargon.size() ? jargon[random % jargon.size()] : "");
169
170	Douglas Thrift	194	select(entry);
171			}
172
173	Douglas Thrift	203	void FeepingCreaturism::select(const ext::String& selection, bool validate)
174	Douglas Thrift	194	{
175			if (!validate \|\| jargon.find(selection) != jargon.end())
176			{
177	Douglas Thrift	203	api::Cout << "Content-Type: text/html; charset=UTF-8\r\n\r\n";
178	Douglas Thrift	196
179	Douglas Thrift	230	Jargon jargon(path, selection, cgi.find("include") != cgi.end()
180	Douglas Thrift	229	&& lexical_cast<bool>(ext::String(cgi.find("include")->second)),
181			cgi.find("relative") != cgi.end()
182			? ext::String(cgi.find("relative")->second) : ext::String());
183	Douglas Thrift	196
184	Douglas Thrift	225	api::Cout << jargon;
185	Douglas Thrift	194	}
186	Douglas Thrift	195	else
187			{
188	Douglas Thrift	203	api::Cout << "Status: 404\r\n"
189			<< "Content-Type: text/html; charset=ISO-8859-1\r\n\r\n"
190			<< "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n"
191	Douglas Thrift	195	<< "<html><head>\n<title>404 Not Found</title>\n</head><body>\n"
192			<< "<h1>Not Found</h1>\n<p>The requested URL "
193			<< env.get("PATH_INFO") << " was not found on this server.</p>\n"
194			<< "<hr />\n" << env.get("SERVER_SIGNATURE") << "</body></html>\n";
195			}
196	Douglas Thrift	194	}