[收藏]http代理服务器的源程序

天云上人

  这是一个简单的HTTP 代理VC++源代码你可能参考一下：
//======================================
//sock.cpp
1 V- Z, |5 e' s' G# [! R#include<winsock.h>
8 h! |9 ]( a4 X% e1 ^) c0 ?, B#include<windows.h>
- v* E5 l4 S9 h; A; h9 o$ _5 i+ l# T#include<iostream.h>
( T! P. e' a$ B#include<stdio.h>

WSADATA ss;
- D* B4 i% h6 ^SOCKET a,s[100];
, C) U8 {4 I3 }4 I- I: Isockaddr_in s1,s2;
, ?9 L( s+ L, Qint pos;
unsigned long id;
. p) s8 U8 h" R7 s% h: l) \HANDLE han[100];
# k' B0 Y/ ~6 n. v, E
DWORD WINAPI thread(
& a' b$ t6 v: [4 i# _$ V LPVOID lpParameter // thread data
) G" a6 }4 f/ y* w* a: |)
{
   int cur = pos;
2 h$ z* e7 X9 z    int sub = 0;
   char rec[20000];
   char host[100];
. S% @6 ^, m9 r4 ^' @    char sen[20000];
   char sen1[20000];
! n  I0 g: ?: h# q" a    for(int z=0;z<20000;z++)
   {
       rec[z]=sen[z]=sen1[z]=0;
       host[z]=0;
   }
   z = 0;
; G4 {2 h* O* `- V    int sz;
$ w% N4 L  B4 n    int pos = 0;
3 Y* d" Z' `2 m* g) F6 K3 {# L    char d1='A',d2,d3;
$ ^) m$ j1 c# p* h4 T    goto mid;
% J: \- ^  D) k1 j- A3 I1 s4 Smid:
   recv(s[cur],&d1,1,0);
   rec[pos] = d1;
! n* n1 a7 M' T0 ]    pos++;
   if(d1=='\n')
   {
5 p; E8 K  f, j. Q! @3 B6 D        recv(s[cur],&d2,1,0);
       recv(s[cur],&d3,1,0);
- _. L, V" A  v+ W; _2 ~        if(d2=='\r' && d3=='\n')
3 G3 ~8 d7 {  K1 c: |        {
. p( y; R* ~0 R9 e            rec[pos] = d2;
           pos++;
           rec[pos] = d3;
2 f4 J6 t5 f6 t5 d2 A# p* a            sz = pos;
) r+ q3 j9 t6 V+ K8 W. A3 I9 P3 k            rec[pos+1]=NULL;
  R. B1 `$ Y" N) {$ I. k& J' L        }
. ]% c0 r: L& e" f5 B: g0 z9 r        else
, U1 I0 }$ \2 y4 g6 G3 t: T        {
           rec[pos] = d2;
3 Q: Z% h+ }) }$ W9 ~            pos++;
           rec[pos] = d3;
           pos++;
           goto mid;
       }
2 m9 C; L0 |. h/ Q/ v7 S  I. N$ L    }
   else
! ~3 O9 P; w/ ^1 Q5 m' P! q    {
       goto mid;
   }
+ T6 j8 M* C1 H( a//sz = recv(s[cur],rec,2000,0);
   printf("%s\n",rec);
   while(rec[z]!=':')
   {
       z++;
7 P/ g$ [- R2 e, E' k        if(rec[z]==NULL || rec[z]=='\n')
' s1 W4 O. ~, f" h        {
6 i+ K- w6 \9 E/ G4 ]; m- z+ W' u0 \            closesocket(s[cur]);
" d& Y  A% v# U9 ], E  ~            return 0;
       }
   }
   z++;
   z++;
1 Y' A0 V. }. X& r8 d    z++;
   int temp = 0;
   while(rec[z]!='/')
: q2 w  O7 ^; u$ ?) A( a. V    {
       host[temp] = rec[z];
       z++;
  Q3 k% f0 ]; T$ I/ M' M2 T( X        temp++;
! o1 a- R8 f, h3 N1 z    }
   temp = 0;
6 s* D7 e# C: T3 B+ X( ]    z=0;
   while(rec[z]!='h')
- C1 G. i% f6 ^* V9 s) y    {
       sen1[temp] = rec[z];
% d9 p8 P0 i2 K  {; `        z++;
       temp++;
   }
$ _3 j# C* w, I5 ]6 G    z++;
/ f2 N& ~5 ^9 |" u* Y1 m    while(rec[z]!='/')
   {
       z++;
   }
: ]. X6 U( ?8 O, X3 P; h3 B9 B    z++;
( l+ ?  C4 |3 E/ p% `! Q* s    z++;
   while(rec[z]!='/')
   {
       z++;
   }
   while(rec[z]!=NULL)
   {
8 F7 y2 z. t% k3 D3 r# C# M        sen1[temp] = rec[z];
       z++;
3 e# w* p. W+ G' X2 e        temp++;
) v* s5 u- [: J( K. T' e# q    }
   PHOSTENT adr = NULL;
/ c0 b* Z, x) x! ]/ z2 _& C- y- S    adr = gethostbyname(host);
   if(adr==NULL)
# z! o3 _4 b/ a) G4 r" i    {
       send(s[cur],"Could not able to resolve host address",48,0);
       closesocket(s[cur]);
       DWORD ff;
- ^2 M8 ^. f( J$ g        GetExitCodeThread(han[cur],&ff);
       ExitThread(ff);
   }
   SOCKET ss;
   sockaddr_in dd;
& c' f! T: I6 W    ss = socket(AF_INET,SOCK_STREAM,0);
   memcpy((char FAR *)&(dd.sin_addr),adr->h_addr,adr->h_length);
   dd.sin_family = AF_INET;
: t2 z1 D: u, h    dd.sin_port = htons(80);
   if(connect(ss,(LPSOCKADDR)&dd,sizeof(dd))==SOCKET_ERROR)
4 I3 j( z- N5 R9 K6 \3 K' l    {
7 s4 q# q: {+ n" @6 z        send(s[cur],"Not able to connect to server",29,0);
# e0 C  n6 v* x5 M        closesocket(s[cur]);
; u& r0 S0 j6 x# m# Y1 @        DWORD ff;
       GetExitCodeThread(han[cur],&ff);
  K2 M; l( v& F8 K2 {        ExitThread(ff);
   }
( ?  s" p* Q% V0 J, P    send(ss,sen1,sz,0);
   sz = recv(ss,rec,2000,0);
' |* ]% ]5 z. S9 b8 ?3 A" V    while(sz!=0)
   {
" E8 E; K# K! X        send(s[cur],rec,sz,0);
' z7 E1 Q% E+ X- I* p4 ]        sz = recv(ss,rec,2000,0);
   }
   closesocket(ss);
# s  _5 K% W  \; B2 Y+ t    closesocket(s[cur]);
; I9 t4 {2 e$ b1 }6 K
5 T5 a7 u1 S* v2 T' D  _; n    DWORD ff;
" U1 V  u) }0 v# Q! v# N2 w    GetExitCodeThread(han[cur],&ff);
" X" x) d* t3 S    ExitThread(ff);
! P: s. a; R9 n; @: ~& c' f2 d    return 0;
7 Q$ b* W1 ]. F}

void main()
: G1 _! l1 b1 G0 }0 V: g5 R6 W{
0 i9 a' d) L$ a' o0 Y$ ~# G    WSAStartup(MAKEWORD(1,1),&ss);
   a = socket(AF_INET,SOCK_STREAM,0);
   s1.sin_addr.s_addr = INADDR_ANY;
   s1.sin_family = AF_INET;
$ u) x( q2 q+ N2 F# ]7 a* B. o* Q, ^    s1.sin_port = htons(2323);
6 s, u0 j  `, f2 F3 w
" C, ^" M! |8 l4 s    if(bind(a,(LPSOCKADDR)&s1,sizeof(s1))==SOCKET_ERROR)
   {
       cout << WSAGetLastError();
   }
+ W4 W9 H$ }8 b3 d    if(listen(a,1)==SOCKET_ERROR)
3 g0 c* M( O1 e    {
       cout << "Error";
   }
   int sz = sizeof(s2);
8 G& i% \) d. Y& y4 @    goto re;
re:
   s[pos] = accept(a,(LPSOCKADDR)&s2,&sz);
   ::han[pos]=CreateThread(NULL,0,&thread,0,0,&id);
   Sleep(500);
/ V2 J' v! z/ y0 b    if(pos==100)
) t( b' @0 {2 v$ h    {
       pos=0;
% T1 X/ d1 q$ y& G4 K    }
! _' f. k3 o# O0 O4 P2 W  d    else
/ f! F& F2 I# H/ B7 {; Y4 k- d    {
       pos++;
   }
goto re;
}
//=======================================