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>
}

int main(int argc, char* argv[])
{
        FeepingCreaturism::program = argv[0];

        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);

        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.size()] };

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

        ::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";

                _M::iterator include(cgi.find("include"));

                if (include != cgi.end())
                {
                        Jargon jargon(path + "/" + selection,
                                lexical_cast<bool>(ext::String(include->second)));

                        api::Cout << jargon;
                }
                else
                {
                        Jargon jargon(path + "/" + selection);

                        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:	219
Committed:	2004-09-05T20:52:38-07:00 (20 years, 9 months ago) by Douglas Thrift
File size:	4485 byte(s)
Log Message:	That might work better.
#	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	191	int main(int argc, char* argv[])
19			{
20	Douglas Thrift	201	FeepingCreaturism::program = argv[0];
21
22	Douglas Thrift	191	FeepingCreaturism creaturism;
23
24			return 0;
25			}
26	Douglas Thrift	194
27			FeepingCreaturism::FeepingCreaturism()
28			{
29			initialize();
30	Douglas Thrift	203	parse();
31	Douglas Thrift	194
32	Douglas Thrift	203	ext::String path(env.get("PATH_INFO"));
33	Douglas Thrift	194	Matcher matcher;
34
35	Douglas Thrift	211	if (path == matcher("^/daily/(\\d{4}-\\d{2}-\\d{2})?$"))
36	Douglas Thrift	194	{
37	Douglas Thrift	211	daily(matcher.size() > 1 ? matcher[1] : "");
38	Douglas Thrift	194	}
39	Douglas Thrift	211	else if (path == matcher("^/random/(\\d+)?$"))
40			{
41			random(matcher.size() > 1 ? matcher[1] : "");
42			}
43	Douglas Thrift	194	else if (path == matcher("^/(" + this->matcher + ")$"))
44			{
45			select(matcher[1], true);
46			}
47	Douglas Thrift	198	else
48			{
49	Douglas Thrift	203	api::Cout << "Location: http://" << env.get("HTTP_HOST")
50	Douglas Thrift	202	<< env.get("SCRIPT_NAME") << "/daily/\r\n\r\n";
51	Douglas Thrift	198	}
52	Douglas Thrift	194	}
53
54	Douglas Thrift	203	ext::String FeepingCreaturism::program;
55	Douglas Thrift	201
56	Douglas Thrift	206	bool FeepingCreaturism::CaseLess::operator()(const std::string& one,
57			const std::string& two)
58			{
59			std::string one_(one), two_(two);
60
61			// XXX: should be std::tolower except g++34 doesn't believe it
62			std::transform(one.begin(), one.end(), one_.begin(), ::tolower);
63			std::transform(two.begin(), two.end(), two_.begin(), ::tolower);
64
65			return one_ < two_;
66			}
67
68	Douglas Thrift	194	void FeepingCreaturism::initialize()
69			{
70	Douglas Thrift	201	ext::Handle<xml::Document> document(xml::Parse("jargon.xml"));
71			ext::Handle<xml::Node> node(*document/"feepingcreaturism");
72	Douglas Thrift	194
73	Douglas Thrift	201	this->path = *node/"jargon";
74			this->matcher = *node/"matcher";
75	Douglas Thrift	194
76			char* path[] = { new char[this->path.size()] };
77
78			std::strcpy(path[0], this->path.c_str());
79
80			::FTS* traversal(::fts_open(path, FTS_LOGICAL, NULL));
81	Douglas Thrift	203	Matcher matcher("^" + this->path + "/(" + this->matcher + ")$");
82	Douglas Thrift	194
83	Douglas Thrift	196	if (traversal == NULL)
84			{
85	Douglas Thrift	203	api::Cerr << program << ": Horrible Failure!\n";
86	Douglas Thrift	196
87			std::exit(1);
88			}
89
90	Douglas Thrift	194	for (::FTSENT* entity(::fts_read(traversal)); entity != NULL;
91			entity = ::fts_read(traversal))
92			{
93			if (entity->fts_info == FTS_F && entity->fts_path == matcher)
94			{
95			jargon.insert(matcher[1]);
96			}
97			}
98
99			::fts_close(traversal);
100
101			delete [] path[0];
102			}
103
104	Douglas Thrift	203	void FeepingCreaturism::parse()
105			{
106			std::stringstream query(env.get("QUERY_STRING"));
107
108			if (env.get("REQUEST_METHOD") == "POST")
109			{
110			std::streamsize length(lexical_cast<std::streamsize>(env.get("CONTENT_"
111			"TYPE")));
112			char* content(new char[length]);
113
114			api::Cin.Read(content, length);
115			query.write(content, length);
116
117			delete [] content;
118			}
119
120			if (query.str().empty()) return;
121
122			do
123			{
124			std::string name, value;
125
126			std::getline(query, name, '=');
127			std::getline(query, value, '&');
128
129			cgi.insert(_P(name, value));
130			}
131			while (query.good());
132			}
133
134	Douglas Thrift	211	void FeepingCreaturism::daily(const ext::String& date)
135	Douglas Thrift	194	{
136			std::time_t when(std::time(NULL));
137	Douglas Thrift	211	std::tm* day(std::localtime(&when));
138	Douglas Thrift	194
139	Douglas Thrift	211	day->tm_sec = 0;
140			day->tm_min = 0;
141			day->tm_hour = 0;
142	Douglas Thrift	194
143	Douglas Thrift	211	if (!date.IsEmpty()) ::strptime(date.NullTerminate(), "%Y-%m-%d", day);
144
145			std::time_t difference(mktime(day) / 86400);
146	Douglas Thrift	203	std::vector<ext::String> jargon(this->jargon.begin(), this->jargon.end());
147			ext::String entry(jargon.size() ? jargon[difference % jargon.size()] : "");
148	Douglas Thrift	194
149			select(entry);
150			}
151
152	Douglas Thrift	211	void FeepingCreaturism::random(const ext::String& number)
153	Douglas Thrift	194	{
154			::srandomdev();
155
156	Douglas Thrift	203	std::vector<ext::String> jargon(this->jargon.begin(), this->jargon.end());
157	Douglas Thrift	211	std::vector<ext::String>::size_type random(number.IsEmpty() ? ::random() :
158			lexical_cast<std::vector<ext::String>::size_type>(number));
159	Douglas Thrift	194
160	Douglas Thrift	211	assert(random >= 0);
161			assert(random % jargon.size() < jargon.size());
162
163			ext::String entry(jargon.size() ? jargon[random % jargon.size()] : "");
164
165	Douglas Thrift	194	select(entry);
166			}
167
168	Douglas Thrift	203	void FeepingCreaturism::select(const ext::String& selection, bool validate)
169	Douglas Thrift	194	{
170			if (!validate \|\| jargon.find(selection) != jargon.end())
171			{
172	Douglas Thrift	203	api::Cout << "Content-Type: text/html; charset=UTF-8\r\n\r\n";
173	Douglas Thrift	196
174	Douglas Thrift	203	_M::iterator include(cgi.find("include"));
175	Douglas Thrift	196
176	Douglas Thrift	203	if (include != cgi.end())
177			{
178			Jargon jargon(path + "/" + selection,
179	Douglas Thrift	219	lexical_cast<bool>(ext::String(include->second)));
180	Douglas Thrift	203
181			api::Cout << jargon;
182			}
183			else
184			{
185			Jargon jargon(path + "/" + selection);
186
187			api::Cout << jargon;
188			}
189	Douglas Thrift	194	}
190	Douglas Thrift	195	else
191			{
192	Douglas Thrift	203	api::Cout << "Status: 404\r\n"
193			<< "Content-Type: text/html; charset=ISO-8859-1\r\n\r\n"
194			<< "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n"
195	Douglas Thrift	195	<< "<html><head>\n<title>404 Not Found</title>\n</head><body>\n"
196			<< "<h1>Not Found</h1>\n<p>The requested URL "
197			<< env.get("PATH_INFO") << " was not found on this server.</p>\n"
198			<< "<hr />\n" << env.get("SERVER_SIGNATURE") << "</body></html>\n";
199			}
200	Douglas Thrift	194	}