1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
|
//
// HtFTP.cc
//
// HtFTP: Interface classes for retriving documents from FTP servers
//
// Including:
// - Generic class
//
// Part of the ht://Dig package <http://www.htdig.org/>
// Copyright (c) 1995-2004 The ht://Dig Group
// For copyright details, see the file COPYING in your distribution
// or the GNU Library General Public License (LGPL) version 2 or later
// <http://www.gnu.org/copyleft/lgpl.html>
//
// $Id: HtFTP.cc,v 1.7 2004/05/28 13:15:23 lha Exp $
//
#ifdef HAVE_CONFIG_H
#include "htconfig.h"
#endif /* HAVE_CONFIG_H */
#include "lib.h"
#include "Transport.h"
#include "HtFTP.h"
#include "Dictionary.h"
#include "StringList.h"
#include "defaults.h" // for config
#include <signal.h>
#include <sys/types.h>
#include <ctype.h>
#include <stdio.h> // for sscanf
#include <sys/stat.h>
#ifdef HAVE_STD
#include <iostream>
#include <fstream>
#ifdef HAVE_NAMESPACES
using namespace std;
#endif
#else
#include <iostream.h>
#include <fstream.h>
#endif /* HAVE_STD */
#ifndef _MSC_VER /* _WIN32 */
#include <unistd.h>
#endif
#ifdef _MSC_VER /* _WIN32 */
#include "dirent_local.h"
#else
#include <dirent.h> // for scandir
#endif
///////
// HtFTP_Response class
///////
// Construction
HtFTP_Response::HtFTP_Response()
{
}
// Destruction
HtFTP_Response::~HtFTP_Response()
{
}
///////
// HtFTP generic class
//
//
///////
// Construction
HtFTP::HtFTP()
{
}
// Destruction
HtFTP::~HtFTP()
{
// It's empty
}
///////
// Manages the requesting process
///////
//NB: HtFTP::DocStatus = return-value (defineret i Transport.h
// Husk HtFTP er nedarvet fra Transport klassen
HtFTP::DocStatus HtFTP::Request()
{
HtConfiguration* config= HtConfiguration::config();
static Dictionary *mime_map = 0;
// har vi brug for denne mime_map i denne klasse?
// hvis ja, burde den ikke laves til function i HtConfiguration
if (!mime_map) // generate mime_map from the current configuration
{
mime_map = new Dictionary();
ifstream in(config->Find("mime_types").get());
if (in)
{
String line;
while (in >> line)
{
line.chop("\n\r \t");
int cmt;
if ((cmt = line.indexOf('#')) >= 0)
line = line.sub(0, cmt);
StringList split_line(line, "\t ");
// Let's cache mime type to lesser the number of
// operator [] callings
String mime_type = split_line[0];
// Fill map with values.
for (int i = 1; i < split_line.Count(); i++)
mime_map->Add(split_line[i], new String(mime_type));
}
}
}
// Reset the response
_response.Reset();
struct stat stat_buf;
// Check that it exists, and is a regular file or directory
// Should we allow FIFO's?
if ( stat(_url.path(), &stat_buf) != 0 ||
!(S_ISREG(stat_buf.st_mode) || S_ISDIR(stat_buf.st_mode)) )
return Transport::Document_not_found;
// Now handle directories with a pseudo-HTML document (and appropriate noindex)
if ( S_ISDIR(stat_buf.st_mode) )
{
_response._content_type = "text/html";
_response._contents = "<html><head><meta name=\"robots\" content=\"noindex\">\n";
struct dirent *namelist;
DIR *dirList;
String filename;
if (( dirList = opendir(_url.path()) ))
{
while (( namelist = readdir(dirList) ))
{
filename = _url.path();
filename << namelist->d_name;
if ( namelist->d_name[0] != '.'
&& stat(filename.get(), &stat_buf) == 0 )
{
if (S_ISDIR(stat_buf.st_mode))
_response._contents << "<link href=\"file://" << _url.path()
<< "/" << namelist->d_name << "/\">\n";
else
_response._contents << "<link href=\"file://" << _url.path()
<< "/" << namelist->d_name << "\">\n";
}
}
closedir(dirList);
}
_response._contents << "</head><body></body></html>\n";
if (debug > 4)
cout << " Directory listing: " << endl << _response._contents << endl;
_response._content_length = stat_buf.st_size;
_response._document_length = _response._contents.length();
_response._modification_time = new HtDateTime(stat_buf.st_mtime);
_response._status_code = 0;
return Transport::Document_ok;
}
if (_modification_time && *_modification_time >= HtDateTime(stat_buf.st_mtime))
return Transport::Document_not_changed;
const char *ext = strrchr(_url.path(), '.');
if (ext == NULL)
return Transport::Document_not_local;
if (mime_map && mime_map->Count())
{
String *mime_type = (String *)mime_map->Find(ext + 1);
if (mime_type)
_response._content_type = *mime_type;
else
return Transport::Document_not_local;
}
else
{
if ((mystrcasecmp(ext, ".html") == 0) || (mystrcasecmp(ext, ".htm") == 0))
_response._content_type = "text/html";
else if (mystrcasecmp(ext, ".txt") == 0)
_response._content_type = "text/plain";
else
return Transport::Document_not_local;
}
_response._modification_time = new HtDateTime(stat_buf.st_mtime);
FILE *f = fopen((const char *)_url.path(), "r");
if (f == NULL)
return Document_not_found;
char docBuffer[8192];
int bytesRead;
while ((bytesRead = fread(docBuffer, 1, sizeof(docBuffer), f)) > 0)
{
if (_response._contents.length() + bytesRead > _max_document_size)
bytesRead = _max_document_size - _response._contents.length();
_response._contents.append(docBuffer, bytesRead);
if (_response._contents.length() >= _max_document_size)
break;
}
fclose(f);
_response._content_length = stat_buf.st_size;
_response._document_length = _response._contents.length();
_response._status_code = 0;
if (debug > 2)
cout << "Read a total of " << _response._document_length << " bytes\n";
return Transport::Document_ok;
}
HtFTP::DocStatus HtFTP::GetDocumentStatus()
{
// Let's give a look at the return status code
if (_response._status_code == -1)
return Transport::Document_not_found;
return Transport::Document_ok;
}
|
