zoe/trunk/Zoe.cpp

// Zoe AIM Away Message RSS Feed Generator
//
// Seth King and Douglas Thrift
//
// $Id$

#include "Matcher.hpp"
#include "Collector.hpp"
#include "Publisher.hpp"

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

#include <algorithm>
#include <cstring>
#include <iterator>

extern "C"
{
#include <pwd.h>
#include <sys/utsname.h>
#include <unistd.h>
}

struct ZoeCommand : public app::Application
{
        virtual int Run(const app::ArgumentList& args)
        {
                Zoe::program = api::GetExecutableName();

                for (size_t index(0); index < args.GetSize(); ++index)
                {
                        ext::String arg(args[index]);
                        Matcher matcher;

                        if (arg == matcher("^-config=(.*)$"))
                        {
                                Zoe::config = matcher[1];
                        }
                        else if (arg == "-collector")
                        {
                                if (!Zoe::collector) Zoe::collector = true;
                        }
                        else if (arg == "-publisher")
                        {
                                if (!Zoe::publisher) Zoe::publisher = true;
                        }
                        else if (arg == "-color")
                        {
                                if (!Zoe::color) Zoe::color = true;
                        }
                        else if (arg == "-D")
                        {
                                if (!Zoe::debug) Zoe::debug = true;
                        }
                        else Zoe::usage();
                }

                Zoe zoe;

                return 0;
        }
} zoe;

Zoe::Zoe()
{
        if (!(collector || publisher)) usage();
        
        configure();
        initialize();

        Collector collector(login, password, buddies, database, Zoe::collector);
        Publisher publisher(buddies, database, Zoe::publisher);
}

bool Zoe::debug(false), Zoe::collector(false), Zoe::publisher(false),
        Zoe::color(false);
ext::String Zoe::program, Zoe::config("zoe.xml");

void Zoe::usage()
{
        cerr << "Usage: " << Zoe::program << " [-config=config] [-collector] "
                "[-publisher] [-color] [-D]\n";

        exit(1);
}

ext::String Zoe::generator(Generator generator)
{
        ext::String generator_(generator == all || generator == agent ? "Zoe" : "");

        switch (generator)
        {
        case all:
                generator_.InsertAllLast("/0.9");
        case agent:
                {
                        utsname system;

                        uname(&system);

                        generator_.InsertAllLast(_R(" (") + system.sysname);
                }

                if (generator == agent)
                {
                        generator_.InsertAllLast(")");

                        break;
                }
                else generator_.InsertAllLast("; ");
        case url:
                generator_.InsertAllLast("http://computers.douglasthrift.net/zoe.xml");

                if (generator == all) generator_.InsertAllLast(")");

                break;
        case version:
                generator_ = "0.9";
        }

        return generator_;
}

void Zoe::configure()
{
        if (debug) cerr << "config = " << config << '\n';

        ext::Handle<xml::Document> document(xml::Parse(config));
        ext::Handle<xml::Node> zoe(*document/"zoe");

        login = *zoe/"login";
        password = *zoe/"password";
        database.driver = *zoe/"database"/"driver";
        database.host = *zoe/"database"/"host";
        database.user = *zoe/"database"/"user";

        if ((*zoe/"database"/"password").IsEmpty())
        {
                ext::String prompt(database.user + (!database.host.IsEmpty() ? "@" : "")
                        + database.host + (!database.user.IsEmpty() ? "'s " : "")
                        + "Database Password: ");
                char* password(getpass(prompt.NullTerminate()));

                database.password = password;

                for (size_t index(std::strlen(password)); index > 0; --index)
                        password[index - 1] = '\0';
        }
        else database.password = *zoe/"database"/"password";

        database.db = *zoe/"database"/"db";

        if (debug) cerr << "login = " << login << "\npassword = "
                << std::string(password.GetSize(), '*') << "\ndatabase = {\n"
                << "   driver = " << database.driver << "\n   host = " << database.host
                << "\n   user = " << database.user << '\n'
                << "   password = " << std::string(database.password.GetSize(), '*')
                << "\n   db = " << database.db << "\n}\n";

        ext::String link(*zoe/"link");
        xml::NodeSet buddies(*zoe/"buddy");

        for (xml::NodeSet::Iterator buddy(buddies.Begin()); buddy != buddies.End();
                ++buddy)
        {
                Buddy buddy_(**buddy/"login", **buddy/"rss", **buddy/"atom",
                        !(**buddy/"link").IsEmpty() ? **buddy/"link" : (link
                        + ext::String(**buddy/"login") + ".html"));

                this->buddies.insert(buddy_);
        }

        if (debug)
        {
                cerr << "buddies = {\n";

                for (std::set<Buddy>::const_iterator buddy(this->buddies.begin());
                        buddy != this->buddies.end(); ++buddy)
                {
                        cerr << "   " << *buddy << " = {\n      rss = " << buddy->getRss()
                                << "\n      atom = " << buddy->getAtom() << "\n      link = "
                                << buddy->getLink() << "\n   }\n";
                }

                cerr << "}\n";
        }

        if (debug) cerr << "collector = " << lexical_cast<ext::String>(collector)
                << "\npublisher = " << lexical_cast<ext::String>(publisher)
                << "\ncolor = " << lexical_cast<ext::String>(color) << '\n';
}

void Zoe::initialize()
{
        ext::Handle<dbi::Driver> driver(dbi::GetDriver(database.driver));
        ext::Handle<dbi::Connection> db(driver->Connect(database.host,
                database.user, database.password, database.db));
        ext::Handle<dbi::ResultSet> buddies(db->Execute("SELECT * FROM buddies"));
        std::set<Buddy> buddies_;

        while (buddies->MoveNext())
        {
                if (this->buddies.find(buddies->GetString("buddy")) != this->buddies.end())
                {
                        Buddy buddy(*this->buddies.find(buddies->GetString("buddy")));

                        buddy.setId(lexical_cast<ext::Uuid>(buddies->GetString("id")));
                        buddies_.insert(buddy);
                }
        }

        std::vector<Buddy> difference;

        set_difference(this->buddies.begin(), this->buddies.end(), buddies_.begin(),
                buddies_.end(), std::insert_iterator<std::vector<Buddy> >(difference,
                difference.begin()));

        for (std::vector<Buddy>::iterator buddy(difference.begin());
                buddy != difference.end(); ++buddy)
        {
                ext::Uuid id;

                api::Uuid::CreateSequential(id);

                buddy->setId(id);
                db->Execute("INSERT INTO buddies (id, buddy) VALUES ('"
                        + lexical_cast<ext::String>(id) + "', '" + ext::String(*buddy)
                        + "')");
                
                buddies_.insert(*buddy);
        }

        this->buddies = buddies_;
}
Revision:	59
Committed:	2004-09-13T23:39:30-07:00 (20 years, 9 months ago) by douglas
File size:	5572 byte(s)
Log Message:	Hrm?!
#	User	Rev	Content
1	douglas	5	// Zoe AIM Away Message RSS Feed Generator
2			//
3			// Seth King and Douglas Thrift
4			//
5			// $Id$
6
7			#include "Matcher.hpp"
8	douglas	13	#include "Collector.hpp"
9			#include "Publisher.hpp"
10	douglas	5
11	douglas	58	#include <menes-api/exename.hpp>
12			#include <menes-app/application.hpp>
13
14	douglas	21	#include <algorithm>
15			#include <cstring>
16			#include <iterator>
17
18			extern "C"
19			{
20			#include <pwd.h>
21	douglas	25	#include <sys/utsname.h>
22	douglas	21	#include <unistd.h>
23			}
24
25	douglas	58	struct ZoeCommand : public app::Application
26	douglas	5	{
27	douglas	58	virtual int Run(const app::ArgumentList& args)
28	douglas	7	{
29	douglas	58	Zoe::program = api::GetExecutableName();
30	douglas	7
31	douglas	58	for (size_t index(0); index < args.GetSize(); ++index)
32	douglas	7	{
33	douglas	58	ext::String arg(args[index]);
34			Matcher matcher;
35
36			if (arg == matcher("^-config=(.*)$"))
37			{
38			Zoe::config = matcher[1];
39			}
40			else if (arg == "-collector")
41			{
42			if (!Zoe::collector) Zoe::collector = true;
43			}
44			else if (arg == "-publisher")
45			{
46			if (!Zoe::publisher) Zoe::publisher = true;
47			}
48			else if (arg == "-color")
49			{
50			if (!Zoe::color) Zoe::color = true;
51			}
52			else if (arg == "-D")
53			{
54			if (!Zoe::debug) Zoe::debug = true;
55			}
56			else Zoe::usage();
57	douglas	7	}
58
59	douglas	58	Zoe zoe;
60	douglas	7
61	douglas	58	return 0;
62			}
63			} zoe;
64	douglas	7
65	douglas	12	Zoe::Zoe()
66	douglas	7	{
67	douglas	43	if (!(collector \|\| publisher)) usage();
68
69	douglas	7	configure();
70	douglas	21	initialize();
71	douglas	8
72	douglas	21	Collector collector(login, password, buddies, database, Zoe::collector);
73			Publisher publisher(buddies, database, Zoe::publisher);
74	douglas	7	}
75
76	douglas	38	bool Zoe::debug(false), Zoe::collector(false), Zoe::publisher(false),
77	douglas	58	Zoe::color(false);
78	douglas	7	ext::String Zoe::program, Zoe::config("zoe.xml");
79
80	douglas	43	void Zoe::usage()
81			{
82			cerr << "Usage: " << Zoe::program << " [-config=config] [-collector] "
83			"[-publisher] [-color] [-D]\n";
84
85			exit(1);
86			}
87
88	douglas	36	ext::String Zoe::generator(Generator generator)
89	douglas	25	{
90	douglas	36	ext::String generator_(generator == all \|\| generator == agent ? "Zoe" : "");
91	douglas	25
92	douglas	36	switch (generator)
93			{
94			case all:
95			generator_.InsertAllLast("/0.9");
96			case agent:
97			{
98			utsname system;
99	douglas	25
100	douglas	36	uname(&system);
101
102	douglas	59	generator_.InsertAllLast(_R(" (") + system.sysname);
103	douglas	36	}
104
105			if (generator == agent)
106			{
107			generator_.InsertAllLast(")");
108
109			break;
110			}
111			else generator_.InsertAllLast("; ");
112			case url:
113			generator_.InsertAllLast("http://computers.douglasthrift.net/zoe.xml");
114
115			if (generator == all) generator_.InsertAllLast(")");
116
117			break;
118			case version:
119			generator_ = "0.9";
120			}
121
122			return generator_;
123	douglas	25	}
124
125	douglas	7	void Zoe::configure()
126			{
127	douglas	21	if (debug) cerr << "config = " << config << '\n';
128
129	douglas	7	ext::Handle<xml::Document> document(xml::Parse(config));
130			ext::Handle<xml::Node> zoe(*document/"zoe");
131
132	douglas	52	login = *zoe/"login";
133			password = *zoe/"password";
134			database.driver = *zoe/"database"/"driver";
135			database.host = *zoe/"database"/"host";
136			database.user = *zoe/"database"/"user";
137	douglas	7
138	douglas	21	if ((*zoe/"database"/"password").IsEmpty())
139			{
140	douglas	38	ext::String prompt(database.user + (!database.host.IsEmpty() ? "@" : "")
141			+ database.host + (!database.user.IsEmpty() ? "'s " : "")
142			+ "Database Password: ");
143	douglas	21	char* password(getpass(prompt.NullTerminate()));
144
145			database.password = password;
146
147	douglas	38	for (size_t index(std::strlen(password)); index > 0; --index)
148			password[index - 1] = '\0';
149	douglas	21	}
150	douglas	52	else database.password = *zoe/"database"/"password";
151	douglas	21
152	douglas	52	database.db = *zoe/"database"/"db";
153	douglas	21
154	douglas	38	if (debug) cerr << "login = " << login << "\npassword = "
155			<< std::string(password.GetSize(), '*') << "\ndatabase = {\n"
156	douglas	54	<< " driver = " << database.driver << "\n host = " << database.host
157	douglas	38	<< "\n user = " << database.user << '\n'
158			<< " password = " << std::string(database.password.GetSize(), '*')
159			<< "\n db = " << database.db << "\n}\n";
160	douglas	21
161	douglas	52	ext::String link(*zoe/"link");
162	douglas	12	xml::NodeSet buddies(*zoe/"buddy");
163
164	douglas	38	for (xml::NodeSet::Iterator buddy(buddies.Begin()); buddy != buddies.End();
165			++buddy)
166			{
167	douglas	39	Buddy buddy_(buddy/"login", buddy/"rss", **buddy/"atom",
168	douglas	46	!(buddy/"link").IsEmpty() ? buddy/"link" : (link
169	douglas	52	+ ext::String(**buddy/"login") + ".html"));
170	douglas	39
171			this->buddies.insert(buddy_);
172	douglas	38	}
173	douglas	21
174			if (debug)
175	douglas	12	{
176	douglas	21	cerr << "buddies = {\n";
177
178	douglas	38	for (std::set<Buddy>::const_iterator buddy(this->buddies.begin());
179			buddy != this->buddies.end(); ++buddy)
180			{
181			cerr << " " << *buddy << " = {\n rss = " << buddy->getRss()
182	douglas	39	<< "\n atom = " << buddy->getAtom() << "\n link = "
183			<< buddy->getLink() << "\n }\n";
184	douglas	38	}
185	douglas	21
186			cerr << "}\n";
187	douglas	12	}
188	douglas	13
189	douglas	21	if (debug) cerr << "collector = " << lexical_cast<ext::String>(collector)
190	douglas	38	<< "\npublisher = " << lexical_cast<ext::String>(publisher)
191			<< "\ncolor = " << lexical_cast<ext::String>(color) << '\n';
192	douglas	7	}
193	douglas	21
194			void Zoe::initialize()
195			{
196	douglas	59	ext::Handle<dbi::Driver> driver(dbi::GetDriver(database.driver));
197			ext::Handle<dbi::Connection> db(driver->Connect(database.host,
198	douglas	38	database.user, database.password, database.db));
199	douglas	21	ext::Handle<dbi::ResultSet> buddies(db->Execute("SELECT * FROM buddies"));
200			std::set<Buddy> buddies_;
201
202			while (buddies->MoveNext())
203			{
204	douglas	50	if (this->buddies.find(buddies->GetString("buddy")) != this->buddies.end())
205			{
206			Buddy buddy(*this->buddies.find(buddies->GetString("buddy")));
207	douglas	21
208	douglas	50	buddy.setId(lexical_cast<ext::Uuid>(buddies->GetString("id")));
209			buddies_.insert(buddy);
210			}
211	douglas	21	}
212
213			std::vector<Buddy> difference;
214
215	douglas	38	set_difference(this->buddies.begin(), this->buddies.end(), buddies_.begin(),
216			buddies_.end(), std::insert_iterator<std::vector<Buddy> >(difference,
217			difference.begin()));
218	douglas	21
219	douglas	38	for (std::vector<Buddy>::iterator buddy(difference.begin());
220			buddy != difference.end(); ++buddy)
221	douglas	21	{
222			ext::Uuid id;
223
224			api::Uuid::CreateSequential(id);
225
226			buddy->setId(id);
227	douglas	38	db->Execute("INSERT INTO buddies (id, buddy) VALUES ('"
228			+ lexical_cast<ext::String>(id) + "', '" + ext::String(*buddy)
229			+ "')");
230	douglas	21
231			buddies_.insert(*buddy);
232			}
233
234			this->buddies = buddies_;
235			}