smsdaemon/plugins/TrainInfo.cpp


#include "TrainInfo.h"

#include "string_nocase.h"
#include "Util.h"
#include "Exceptions.h"
#include "Logger.h"

#include "HttpClient.h"

#include <vector>
#include <sstream>
#include <stdexcept>


using namespace std;

string ConvertUpdateInfo(char ch)
{
        string result;
        switch ( ch)
        {
        case '1':
                result = "< 3 min";
                break;
        case '2':
                result = "3 - 10 min";
                break;
        case '3':
                result = "> 10 min";
                break;
        case '4':
                result = "No info";
                break;
        default:
                result = "Unknown";
        }
        return result;
}

inline string clean(string& str)
{
        using namespace Util;

        str = str_replace(str, "&nbsp;", " ");

        return str_trim(str_characters(str_striptags(str)));
}

void CleanTrainInfo(TrainInfo& info)
{
        info.time = clean( info.time );
        info.type = clean( info.type );
        info.destination = clean( info.destination );
        info.origin = clean( info.origin );
        info.current = clean( info.current );
        info.status = clean( info.status );
        info.note = clean( info.note );
}

vector<TrainInfo> GetTrainInfo(string stationcode, string stationname)
{
        vector<TrainInfo> result;

        string url = string("http://www.bane.dk/visStation.asp?W=FJRN&S=") + stationcode + "&artikelId=4275&statnavn=" + stationname;

        //string raw_doc = Util::readUrl(url, "/tmp/sms_tog.tmp" );

        string raw_doc;
        try
        {
                raw_doc = HttpClient::GetString(url);
        }
        catch (httpexception& e)
        {
                Logger::logMessage(e.what());
        }

        if (raw_doc == "")
        {
                throw std::runtime_error("Connection timeout");
        }

        raw_doc = Util::str_replace(raw_doc, "\"", "'");

        string_nocase html = raw_doc.c_str();

        unsigned int pos =0;

        unsigned int ankomstpos = html.find("id='ankomsttabel'");

        while (1)
        {
                //start with time
                pos = html.find("<td class='tid'>", pos);

                if (pos == string::npos)
                        break;

                if (pos > ankomstpos)
                        break;

                TrainInfo info;

                pos = html.find("<span", pos);

                int start = pos;
                int stop = html.find("</td>", pos);

                info.time = html.substr(start, stop-start).c_str();

                //update info
                pos = html.find("<td class='opdater'>", pos);
                pos += 54;
                char update = html.at(pos);
                info.update = ConvertUpdateInfo(update);

                //type
                pos = html.find( "<td class='togtype'>", pos);
                start = pos + 20;
                stop = html.find("</td>", pos);
                info.type = html.substr(start, stop-start).c_str();

                //destination
                pos = html.find( "<td class='til'>", pos);
                start = pos + 16;
                stop = html.find( "</td>", pos);
                info.destination = html.substr(start, stop-start).c_str();

                //origin
                pos = html.find( "<td class='visikke'>", pos);
                start = pos + 20;
                stop = html.find( "</td>", pos);
                info.origin = html.substr(start, stop-start).c_str();

                //Current location
                pos++; //since origin and current use the same search pattern, we must increase the position
                //so we don't get origin twice.

                pos = html.find( "<td class='visikke'>", pos);
                start = pos + 20;
                stop = html.find( "</td>", pos);
                info.current = html.substr(start, stop-start).c_str();

                //status
                pos = html.find( "<td class='status'>", pos);
                start = pos + 19;
                stop = html.find( "</td>", pos);
                info.status = html.substr(start, stop-start).c_str();

                //note
                pos = html.find( "<td class='bem'>", pos);
                start = pos + 16;
                stop = html.find( "</td>", pos);
                info.note = html.substr(start, stop-start).c_str();

                CleanTrainInfo(info);

                result.push_back(info);
        }

        return result;
}
1
2	#include "TrainInfo.h"
3
4	#include "string_nocase.h"
5	#include "Util.h"
6	#include "Exceptions.h"
7	#include "Logger.h"
8
9	#include "HttpClient.h"
10
11	#include <vector>
12	#include <sstream>
13	#include <stdexcept>
14
15
16	using namespace std;
17
18	string ConvertUpdateInfo(char ch)
19	{
20	string result;
21	switch ( ch)
22	{
23	case '1':
24	result = "< 3 min";
25	break;
26	case '2':
27	result = "3 - 10 min";
28	break;
29	case '3':
30	result = "> 10 min";
31	break;
32	case '4':
33	result = "No info";
34	break;
35	default:
36	result = "Unknown";
37	}
38	return result;
39	}
40
41	inline string clean(string& str)
42	{
43	using namespace Util;
44
45	str = str_replace(str, " ", " ");
46
47	return str_trim(str_characters(str_striptags(str)));
48	}
49
50	void CleanTrainInfo(TrainInfo& info)
51	{
52	info.time = clean( info.time );
53	info.type = clean( info.type );
54	info.destination = clean( info.destination );
55	info.origin = clean( info.origin );
56	info.current = clean( info.current );
57	info.status = clean( info.status );
58	info.note = clean( info.note );
59	}
60
61	vector<TrainInfo> GetTrainInfo(string stationcode, string stationname)
62	{
63	vector<TrainInfo> result;
64
65	string url = string("http://www.bane.dk/visStation.asp?W=FJRN&S=") + stationcode + "&artikelId=4275&statnavn=" + stationname;
66
67	//string raw_doc = Util::readUrl(url, "/tmp/sms_tog.tmp" );
68
69	string raw_doc;
70	try
71	{
72	raw_doc = HttpClient::GetString(url);
73	}
74	catch (httpexception& e)
75	{
76	Logger::logMessage(e.what());
77	}
78
79	if (raw_doc == "")
80	{
81	throw std::runtime_error("Connection timeout");
82	}
83
84	raw_doc = Util::str_replace(raw_doc, "\"", "'");
85
86	string_nocase html = raw_doc.c_str();
87
88	unsigned int pos =0;
89
90	unsigned int ankomstpos = html.find("id='ankomsttabel'");
91
92	while (1)
93	{
94	//start with time
95	pos = html.find("<td class='tid'>", pos);
96
97	if (pos == string::npos)
98	break;
99
100	if (pos > ankomstpos)
101	break;
102
103	TrainInfo info;
104
105	pos = html.find("<span", pos);
106
107	int start = pos;
108	int stop = html.find("</td>", pos);
109
110	info.time = html.substr(start, stop-start).c_str();
111
112	//update info
113	pos = html.find("<td class='opdater'>", pos);
114	pos += 54;
115	char update = html.at(pos);
116	info.update = ConvertUpdateInfo(update);
117
118	//type
119	pos = html.find( "<td class='togtype'>", pos);
120	start = pos + 20;
121	stop = html.find("</td>", pos);
122	info.type = html.substr(start, stop-start).c_str();
123
124	//destination
125	pos = html.find( "<td class='til'>", pos);
126	start = pos + 16;
127	stop = html.find( "</td>", pos);
128	info.destination = html.substr(start, stop-start).c_str();
129
130	//origin
131	pos = html.find( "<td class='visikke'>", pos);
132	start = pos + 20;
133	stop = html.find( "</td>", pos);
134	info.origin = html.substr(start, stop-start).c_str();
135
136	//Current location
137	pos++; //since origin and current use the same search pattern, we must increase the position
138	//so we don't get origin twice.
139
140	pos = html.find( "<td class='visikke'>", pos);
141	start = pos + 20;
142	stop = html.find( "</td>", pos);
143	info.current = html.substr(start, stop-start).c_str();
144
145	//status
146	pos = html.find( "<td class='status'>", pos);
147	start = pos + 19;
148	stop = html.find( "</td>", pos);
149	info.status = html.substr(start, stop-start).c_str();
150
151	//note
152	pos = html.find( "<td class='bem'>", pos);
153	start = pos + 16;
154	stop = html.find( "</td>", pos);
155	info.note = html.substr(start, stop-start).c_str();
156
157	CleanTrainInfo(info);
158
159	result.push_back(info);
160	}
161
162	return result;
163	}