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
|
// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
// $Id: copy.cc,v 1.1 1998/10/25 01:57:07 jgg Exp $
/* ######################################################################
Copy URI - This method takes a uri like a file: uri and copies it
to the destination URI.
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
#include <apt-pkg/fileutl.h>
#include <strutl.h>
#include <apt-pkg/error.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
/*}}}*/
// Fail - Generate a failure message /*{{{*/
// ---------------------------------------------------------------------
/* */
void Fail(string URI)
{
string Err = "Undetermined Error";
if (_error->empty() == false)
_error->PopMessage(Err);
printf("400 URI Failure\n"
"URI: %s\n"
"Message: %s\n\n",URI.c_str(),Err.c_str());
_error->Discard();
}
/*}}}*/
int main()
{
setlinebuf(stdout);
SetNonBlock(STDIN_FILENO,true);
printf("100 Capabilities\n"
"Version: 1.0\n"
"Pipeline: true\n\n");
vector<string> Messages;
while (1)
{
if (WaitFd(STDIN_FILENO) == false ||
ReadMessages(STDIN_FILENO,Messages) == false)
return 0;
while (Messages.empty() == false)
{
string Message = Messages.front();
Messages.erase(Messages.begin());
// Fetch the message number
char *End;
int Number = strtol(Message.c_str(),&End,10);
if (End == Message.c_str())
{
cerr << "Malformed message!" << endl;
return 100;
}
// We only understand 600 URI Fetch messages
if (Number != 600)
continue;
// Grab the URI bit
string URI = LookupTag(Message,"URI");
string Target = LookupTag(Message,"Filename");
// Grab the filename
string::size_type Pos = URI.find(':');
if (Pos == string::npos)
{
_error->Error("Invalid message");
Fail(URI);
continue;
}
string File = string(URI,Pos+1);
// Start the reply message
string Result = "201 URI Done";
Result += "\nURI: " + URI;
Result += "\nFileName: " + Target;
// See if the file exists
FileFd From(File,FileFd::ReadOnly);
FileFd To(Target,FileFd::WriteEmpty);
To.EraseOnFailure();
if (_error->PendingError() == true)
{
Fail(URI);
continue;
}
// Copy the file
if (CopyFile(From,To) == false)
{
Fail(URI);
continue;
}
// Send the message
Result += "\n\n";
if (write(STDOUT_FILENO,Result.begin(),Result.length()) !=
(signed)Result.length())
return 100;
}
}
return 0;
}
|
