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
|
// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/// $Id: http.h,v 1.9 2001/02/20 07:03:18 jgg Exp $
// $Id: http.h,v 1.9 2001/02/20 07:03:18 jgg Exp $
/* ######################################################################
HTTP Aquire Method - This is the HTTP aquire method for APT.
##################################################################### */
/*}}}*/
#ifndef APT_HTTP_H
#define APT_HTTP_H
#define MAXLEN 360
class HttpMethod;
class CircleBuf
{
unsigned char *Buf;
unsigned long Size;
unsigned long InP;
unsigned long OutP;
string OutQueue;
unsigned long StrPos;
unsigned long MaxGet;
struct timeval Start;
unsigned long LeftRead()
{
unsigned long Sz = Size - (InP - OutP);
if (Sz > Size - (InP%Size))
Sz = Size - (InP%Size);
return Sz;
}
unsigned long LeftWrite()
{
unsigned long Sz = InP - OutP;
if (InP > MaxGet)
Sz = MaxGet - OutP;
if (Sz > Size - (OutP%Size))
Sz = Size - (OutP%Size);
return Sz;
}
void FillOut();
public:
MD5Summation *MD5;
// Read data in
bool Read(int Fd);
bool Read(string Data);
// Write data out
bool Write(int Fd);
bool WriteTillEl(string &Data,bool Single = false);
// Control the write limit
void Limit(long Max) {if (Max == -1) MaxGet = 0-1; else MaxGet = OutP + Max;}
bool IsLimit() {return MaxGet == OutP;};
void Print() {cout << MaxGet << ',' << OutP << endl;};
// Test for free space in the buffer
bool ReadSpace() {return Size - (InP - OutP) > 0;};
bool WriteSpace() {return InP - OutP > 0;};
// Dump everything
void Reset();
void Stats();
CircleBuf(unsigned long Size);
~CircleBuf() {delete [] Buf;};
};
struct ServerState
{
// This is the last parsed Header Line
unsigned int Major;
unsigned int Minor;
unsigned int Result;
char Code[MAXLEN];
// These are some statistics from the last parsed header lines
unsigned long Size;
signed long StartPos;
time_t Date;
bool HaveContent;
enum {Chunked,Stream,Closes} Encoding;
enum {Header, Data} State;
bool Persistent;
// This is a Persistent attribute of the server itself.
bool Pipeline;
HttpMethod *Owner;
// This is the connection itself. Output is data FROM the server
CircleBuf In;
CircleBuf Out;
int ServerFd;
URI ServerName;
bool HeaderLine(string Line);
bool Comp(URI Other) {return Other.Host == ServerName.Host && Other.Port == ServerName.Port;};
void Reset() {Major = 0; Minor = 0; Result = 0; Size = 0; StartPos = 0;
Encoding = Closes; time(&Date); ServerFd = -1;
Pipeline = true;};
int RunHeaders();
bool RunData();
bool Open();
bool Close();
ServerState(URI Srv,HttpMethod *Owner);
~ServerState() {Close();};
};
class HttpMethod : public pkgAcqMethod
{
void SendReq(FetchItem *Itm,CircleBuf &Out);
bool Go(bool ToFile,ServerState *Srv);
bool Flush(ServerState *Srv);
bool ServerDie(ServerState *Srv);
int DealWithHeaders(FetchResult &Res,ServerState *Srv);
virtual bool Fetch(FetchItem *);
virtual bool Configuration(string Message);
// In the event of a fatal signal this file will be closed and timestamped.
static string FailFile;
static int FailFd;
static time_t FailTime;
static void SigTerm(int);
public:
friend class ServerState;
FileFd *File;
ServerState *Server;
int Loop();
HttpMethod() : pkgAcqMethod("1.2",Pipeline | SendConfig)
{
File = 0;
Server = 0;
};
};
URI Proxy;
#endif
|
