发表于 2009-1-5 19:48
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鐩存帴鐢╯ocket瀹炵幇HTTP涓嬭浇
鍙戝竷: 2008-6-26 12:23 | 浣滆: admin | 鏌ョ湅: 31娆
绋嬪簭杩愯鏁堟灉鎴浘:
HTTP涓嬭浇Socket
涓嬭浇鏈枃鎵闄勬簮浠ｇ爜
浠嶩TTP鏈嶅姟鍣ㄤ笂涓嬭浇涓涓枃浠舵湁寰堝鏂规硶,"鐑績"鐨勫井杞彁渚涗簡WinInet绫,鐢ㄨ捣鏉ヤ篃寰堟柟渚.褰撶劧,鎴戜滑涔熷彲浠ヨ嚜宸卞疄鐜拌繖浜涘姛鑳,閫氳繃鏍煎紡鍖栬姹傚ご寰堝鏄撳氨鑳藉疄鐜版柇鐐圭画浼犲拰妫鏌ユ洿鏂扮瓑绛夊姛鑳.鏈枃闄勫甫鐨勫伐绋嬩腑鏈変竴涓敮鎸丠TTP1.1鍗忚,鐩存帴鐢⊿ocket瀹炵幇涓嬭浇鍔熻兘鐨凞LL,瀹炵幇浜嗕互涓嬪姛鑳:
1.杩炴帴涓绘満
2.鏍煎紡鍖栬姹傚ご
3.璁剧疆鎺ユ敹,鍙戦佽秴鏃
4.鎺ユ敹骞跺垎鏋愬洖搴斿ご
杩炴帴,鍙戦,璁剧疆瓒呮椂,鎺ユ敹鏁版嵁绛夋垜灏变笉缁嗚浜,windows socket鏃╁氨鍋氬ソ浜,璋冪敤鐩稿簲鐨勫嚱鏁板氨OK浜.
瑕佹兂浠庢湇鍔″櫒涓嬭浇鏂囦欢,棣栧厛瑕佸悜鏈嶅姟鍣ㄥ彂閫佷竴涓姹.HTTP璇锋眰澶寸敱鑻ュ共琛屽瓧绗︿覆缁勬垚.涓嬮潰缁撳悎瀹炰緥璇磋HTTP璇锋眰澶寸殑鏍煎紡.鍋囪瑕佷笅杞絟ttp://www.sina.com.cn/index.html杩欎釜缃戦〉,閭ｄ箞璇锋眰澶寸殑鍐欐硶濡備笅:
绗1琛:鏂规硶,璇锋眰鐨勫唴瀹,HTTP鍗忚鐨勭増鏈
涓嬭浇涓鑸彲浠ョ敤GET鏂规硶,璇锋眰鐨勫唴瀹规槸"/index.html",HTTP鍗忚鐨勭増鏈槸鎸囨祻瑙堝櫒鏀寔鐨勭増鏈,瀵逛簬涓嬭浇杞欢鏉ヨ鏃犳墍璋,鎵浠ョ敤1.1鐗 "HTTP/1.1";
"GET /index.html HTTP/1.1"
绗2琛:涓绘満鍚,鏍煎紡涓"Host:涓绘満"
鍦ㄨ繖涓緥瀛愪腑鏄:"Host:www.sina.com.cn"
绗3琛:鎺ュ彈鐨勬暟鎹被鍨.涓嬭浇杞欢褰撶劧瑕佹帴鏀舵墍鏈夌殑鏁版嵁绫诲瀷,鎵浠:
"Accept:*/*"
绗4琛:鎸囧畾娴忚鍣ㄧ殑绫诲瀷
鏈変簺鏈嶅姟鍣ㄤ細鏍规嵁瀹㈡埛鏈嶅姟鍣ㄧ绫荤殑涓嶅悓浼氬鍔犳垨鍑忓皯涓浜涘唴瀹,鍦ㄨ繖涓緥瀛愪腑鍙互杩欐牱鍐:
"User-Agent:Mozilla/4.0 (compatible; MSIE 5.00; Windows 98)"
绗5琛:杩炴帴璁剧疆
璁惧畾涓轰竴鐩翠繚鎸佽繛鎺:"Connection:Keep-Alive"
绗6琛:鑻ヨ瀹炵幇鏂偣缁紶鍒欒鎸囧畾浠庝粈涔堜綅缃捣鎺ユ敹鏁版嵁,鏍煎紡濡備笅
"Range: bytes=璧峰浣嶇疆 - 缁堟浣嶇疆"
姣斿瑕佽鍓500涓瓧鑺傚彲浠ヨ繖鏍峰啓:"Range: bytes=0 - 499";
浠庣 1000涓瓧鑺傝捣寮濮嬩笅杞:"Range: bytes=999 -"
鏈鍚,鍒繕浜嗗姞涓婁竴琛岀┖琛,琛ㄧず璇锋眰澶寸粨鏉.鏁翠釜璇锋眰澶村涓:
GET /index.html HTTP/1.1
Host:www.sina.com.cn
Accept:*/*
User-Agent:Mozilla/4.0 (compatible; MSIE 5.00; Windows 98)
Connection:Keep-Alive
CHttpSocket鎻愪緵浜咶ormatRequestHeader()鍑芥暟,鐢ㄤ互鏍煎紡鍖栬緭鍑篐TTP璇锋眰澶.浠ｇ爜濡備笅:
///鏍规嵁璇锋眰鐨勭浉瀵筓RL杈撳嚭HTTP璇锋眰澶
const char *CHttpSocket::FormatRequestHeader(char *pServer,char *pObject, long &Length,
char *pCookie,char *pReferer,long nFrom,
long nTo,int nServerType)
{
char szPort[10];
char szTemp[20];
sprintf(szPort,"%d",m_port);
memset(m_requestheader,'\0',1024);
///绗1琛:鏂规硶,璇锋眰鐨勮矾寰,鐗堟湰
strcat(m_requestheader,"GET ");
strcat(m_requestheader,pObject);
strcat(m_requestheader," HTTP/1.1");
strcat(m_requestheader,"\r\n");
///绗2琛:涓绘満
strcat(m_requestheader,"Host:");
strcat(m_requestheader,pServer);
strcat(m_requestheader,"\r\n");
///绗3琛:
if(pReferer != NULL)
{
strcat(m_requestheader,"Referer:");
strcat(m_requestheader,pReferer);
strcat(m_requestheader,"\r\n");
}
///绗4琛:鎺ユ敹鐨勬暟鎹被鍨
strcat(m_requestheader,"Accept:*/*");
strcat(m_requestheader,"\r\n");
///绗5琛:娴忚鍣ㄧ被鍨
strcat(m_requestheader,"User-Agent:Mozilla/4.0 (compatible; MSIE 5.00; Windows 98)");
strcat(m_requestheader,"\r\n");
///绗6琛:杩炴帴璁剧疆,淇濇寔
strcat(m_requestheader,"Connection:Keep-Alive");
strcat(m_requestheader,"\r\n");
///绗7琛:Cookie.
if(pCookie != NULL)
{
strcat(m_requestheader,"Set Cookie:0");
strcat(m_requestheader,pCookie);
strcat(m_requestheader,"\r\n");
}
///绗8琛:璇锋眰鐨勬暟鎹捣濮嬪瓧鑺備綅缃(鏂偣缁紶鐨勫叧閿)
if(nFrom > 0)
{
strcat(m_requestheader,"Range: bytes=");
_ltoa(nFrom,szTemp,10);
strcat(m_requestheader,szTemp);
strcat(m_requestheader,"-");
if(nTo > nFrom)
{
_ltoa(nTo,szTemp,10);
strcat(m_requestheader,szTemp);
}
strcat(m_requestheader,"\r\n");
}
///鏈鍚庝竴琛:绌鸿
strcat(m_requestheader,"\r\n");
///杩斿洖缁撴灉
Length=strlen(m_requestheader);
return m_requestheader;
}
璇锋眰澶村彂閫佺粰鏈嶅姟鍣ㄥ悗灏卞彲浠ユ帴鏀舵潵鑷湇鍔″櫒鐨勫洖搴斿ご浜.鍥炲簲澶翠篃鏄敱鑻ュ共琛屽瓧绗︿覆缁勬垚,闄や簡绗竴琛屽拰鏈鍚庝竴涓┖琛屼互澶,姣忎竴琛岄兘鐢变竴涓煙鍜屼竴涓肩粍鎴.绗竴琛屽寘鎷簡鏈嶅姟鍣ㄧ殑鍥炲簲鐘舵,浠 2XX 鍒 5XX,姣忎釜鐘舵佺爜閮芥湁涓嶅悓鐨勬剰鎬,璇︾粏鍐呭鍙互鏌ョ湅RFC鏂囨。涓嬭浇闇瑕佸叧蹇冪殑鏈: 2XX琛ㄧず鎴愬姛,鍙互缁х画璇诲彇鏁版嵁;3XX琛ㄧず鐩爣宸茬粡杞Щ,鏂扮殑鍦板潃鍦"Location"鍩熶腑;4XX琛ㄧず瀹㈡埛绔敊,鍙兘鏄笅杞藉湴鍧涓嶅,绛夌瓑;5XX琛ㄧず鏈嶅姟鍣ㄧ閿.鍥炲簲澶翠腑鐨勫煙鏈"Content-Length","Accept-Ranges","Content-Type","Date","Last-Modified","Location"绛夌瓑鍐呭,涓嬭浇姣旇緝鍏冲績鐨勫煙鏈"Content-Length"鍩熷拰"Location"鍩."Content-Length"琛ㄧず涓嬭浇鏂囦欢鐨勫ぇ灏,"Location"琛ㄧず鐩爣鐨勫疄闄呭瓨鏀句綅缃,褰撳洖搴旂爜涓3XX鏃跺氨瑕佺敤璇ュ煙涓殑鍊奸噸鏂拌繛鎺.
闄勫甫婧愮爜涓殑CHttpSocket绫绘彁渚涗簡浠ヤ笅鍑犱釜鏂规硶,鍒嗗埆鐢ㄦ潵璇诲彇鏈嶅姟鍣ㄧ姸鎬佺爜,鏌愪釜鍩熺殑鍊,鍥炲簲澶翠腑鐨勪竴琛屼互鍙婃暣涓洖搴斿ご:
