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Http Server C语言.docx

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Http Server C语言.docx

HttpServerC语言

#include

//建立socket开始侦听接收连接接收客户端数据解析http协议发送文件数据给客户端

#defineHTTP_PORT"2010"

#defineMAX_CONNECTION10

#defineDOCUMENT_ROOT"www"

#defineLOG_PATH"log/access.log"

voidparser（char*s,charres[][255],charhost[][255]）;

staticchar*strtoupper（char*s）;

staticlongfilesize（constchar*filename）;

staticintfile_exists（constchar*filename）;

staticvoidmime_content_type（constchar*name,char*ret）;

staticintWriteLog（constchar*message）;

staticintis_dir（constchar*filename）;

staticunsignedshortg_is_log=1;

staticintg_log_fd=0;

intmain（void）

{

intserver_sock;

intclient_sock;

structsockaddr_inserver_addr;

structsockaddr_inclient_addr;

structsockaddr_insin;

structstatfile_stat;

pid_tpid;

charclient_ip[100];

charbuf[20000];

charbuf_all[2000];

charbuf1[2000];

charp[3][255];

charh[3][255];

chartmp[2000];

charcwd[1024];

charfilename[2000];

charfilepath[2000];

intfd,size;

intcurrentConn=0;

DIR*dir;

structdirent*ptr;

chdir（"../"）;

if（（pid=fork（））<0）

{

perror（"fork"）;

exit

（1）;

}

elseif（pid!

=0）

{

exit

（1）;

}

if（（server_sock=socket（AF_INET,SOCK_STREAM,0））<0）

{

perror（"socket"）;

exit

（1）;

}

memset（&server_addr,0,sizeof（server_addr））;

server_addr.sin_family=AF_INET;

server_addr.sin_port=htons（atoi（HTTP_PORT））;

server_addr.sin_addr.s_addr=htonl（INADDR_ANY）;

if（bind（server_sock,（structsockaddr*）&server_addr,sizeof（server_addr））<0）

{

perror（"bind"）;

exit

（1）;

}

if（listen（server_sock,MAX_CONNECTION）<0）

{

perror（"listen"）;

exit

（1）;

}

printf（"fasthttpsuccessfulcreated...\n"）;

while

（1）

{

unsignedintclientlen=sizeof（client_addr）;

if（（client_sock=accept（server_sock,（structsockaddr*）&client_addr,&clientlen））<0）

{

perror（"accept"）;

exit

（1）;

}

if（（pid=fork（））==0）

{

if（read（client_sock,buf,20000）<0）

{

perror（"readdatafromclient"）;

exit

（1）;

}

parser（buf,p,h）;

if（strcmp（strtoupper（p[0]）,"GET"）!

&&strcmp（strtoupper（p[0]）,"POST"）!

&&strcmp（strtoupper（p[0]）,"HEAD"）!

=0）

{

memset（&buf,0,sizeof（buf））;

sprintf（buf,"HTTP/1.1501NotImplemented\r\nServer:

%s\r\nContent-Type:

text/html\r\nContent-Length:

1489\r\nAccept-Ranges:

bytes\r\nConnection:

close\r\n\r\n","Apache"）;

write（client_sock,buf,strlen（buf））;

memset（&buf,0,sizeof（buf））;

sprintf（buf,"

%sMethodNotImplemented

","501"）;

write（client_sock,buf,strlen（buf））;

close（client_sock）;

exit（0）;

}

if（strcmp（p[1],"/"）==0）

{

memset（&tmp,0,sizeof（tmp））;

sprintf（tmp,"%s","index.html"）;

strcat（p[1],tmp）;

}

WriteLog（p[1]）;

getcwd（filepath,sizeof（filepath））;

strcat（filepath,"/"）;

strcat（filepath,DOCUMENT_ROOT）;

strcat（filepath,p[1]）;

if（!

file_exists（filepath））

{

memset（&buf,0,sizeof（buf））;

sprintf（buf,"HTTP/1.1404NotFound\r\nServer:

%s\r\nContent-Type:

text/html\r\nContent-Length:

257271\r\nConnection:

close\r\n\r\n","Apache"）;

write（client_sock,buf,strlen（buf））;

memset（&buf,0,sizeof（buf））;

sprintf（buf,"404NotFound

404NotFound

Poweredby%s","fasthttp"）;

write（client_sock,buf,strlen（buf））;

close（client_sock）;

memset（&buf,0,sizeof（buf））;

sprintf（buf,"404NotFound\t%s\n",filepath）;

WriteLog（buf）;

exit（0）;

}

if（access（filepath,R_OK）<0）

{

memset（&buf,0,sizeof（buf））;

sprintf（buf,"HTTP/1.1403Forbidden\r\nServer:

%s\r\nContent-Type:

text/html\r\nContent-Length:

25727\r\nConnection:

close\r\n\r\n","Apache"）;

write（client_sock,buf,strlen（buf））;

close（client_sock）;

exit（0）;

}

/**目录列表**/

if（is_dir（filepath））

{

memset（&tmp,0,sizeof（tmp））;

sprintf（tmp,"Indexof%s

Indexof%s

ParentDirectory

strcat（buf,tmp）;

if（（dir=opendir（filepath））!

=NULL）

{

while（（ptr=readdir（dir））!

=NULL）

{

if（strcmp（ptr->d_name,"."）==0||strcmp（ptr->d_name,".."）==0）

{

continue;

}

memset（&buf,0,sizeof（buf））;

sprintf（buf,"%s/%s",filepath,ptr->d_name）;

if（is_dir（buf））

{

memset（&buf,0,sizeof（buf））;

sprintf（buf,"

}

else

{

memset（&buf,0,sizeof（buf））;

sprintf（buf,"

}

strcat（tmp,buf）;

}

closedir（dir）;

memset（&buf,0,sizeof（buf））;

sprintf（buf,"%s","

"）;

strcat（tmp,buf）;

memset（&buf,0,sizeof（buf））;

sprintf（buf,"HTTP/1.1200OK\r\nServer:

fasthttp\r\nContent-Type:

text/html;charset=utf-8\r\nContent-Length:

%d\r\nConnection:

close\r\n\r\n",strlen（tmp））;

write（client_sock,buf,strlen（buf））;

write（client_sock,tmp,strlen（tmp））;

close（client_sock）;

}

memset（&tmp,0,sizeof（tmp））;

mime_content_type（filepath,tmp）;

memset（&buf,0,sizeof（buf））;

sprintf（buf,"HTTP/1.1200OK\r\nServer:

%s\r\nContent-Type:

%s\r\nContent-Length:

25727\r\nConnection:

close\r\n\r\n","Apache",tmp）;

write（client_sock,buf,strlen（buf））;

memset（&buf,0,sizeof（buf））;

fd=open（filepath,O_RDONLY）;

read（fd,buf,filesize（filepath））;

close（fd）;

write（client_sock,buf,filesize（filepath））;

close（client_sock）;

memset（&buf,0,sizeof（buf））;

sprintf（buf,"200OK\t%s\t%d\n",filepath,filesize（filepath））;

WriteLog（buf）;

exit（0）;

}

else

{

wait（NULL）;

}

close（client_sock）;

}

voidparser（char*s,charres[][255],charhost[][255]）

{

inti,j=0;

intn;

charhosts[255];

for（i=0;s[i]!

='\r';i++）/*obtainthefirstlineinhttpprotocolhead*/

;

s[i]='\0';

n=i++;

for（i=0,j=0;i<3;i++,j++）/*dividetheprotocolheadinblank*/

{

strcpy（res[j],strsep（&s,""））;

}

for（i=n;s[i]!

='\r';i++）

{

strcat（hosts,s[i]）;

}

for（i=0,j=0;i<3;i++,j++）/*dividetheprotocolheadinblank*/

{

strcpy（host[j],strsep（&hosts,":

"））;

}

/**

*strtoupper-stringtoupper

staticchar*strtoupper（char*s）

{

inti,len=sizeof（s）;

for（i=0;i

{

s[i]=（s[i]>='a'&&s[i]<='z'?

s[i]+'A'-'a':

s[i]）;

}

return（s）;

}

/**

*filesize-getfilesize

staticlongfilesize（constchar*filename）

{

structstatbuf;

if（!

stat（filename,&buf））

{

returnbuf.st_size;

}

return0;

}

/**

*file_exists-checkfileisexist

staticintfile_exists（constchar*filename）

{

structstatbuf;

if（stat（filename,&buf）<0）

{

if（errno==ENOENT）

{

return0;

}

return1;

}

/**

*GetMIMEtypeheader

staticvoidmime_content_type（constchar*name,char*ret）{

char*dot,*buf;

dot=strrchr（name,'.'）;

/*Text*/

if（strcmp（dot,".txt"）==0）{

buf="text/plain";

}elseif（strcmp（dot,".css"）==0）{

buf="text/css";

}elseif（strcmp（dot,".js"）==0）{

buf="text/javascript";

}elseif（strcmp（dot,".xml"）==0||strcmp（dot,".xsl"）==0）{

buf="text/xml";

}elseif（strcmp（dot,".xhtm"）==0||strcmp（dot,".xhtml"）==0||strcmp（dot,".xht"）==0）{

buf="application/xhtml+xml";

}elseif（strcmp（dot,".html"）==0||strcmp（dot,".htm"）==0||strcmp（dot,".shtml"）==0||strcmp（dot,".hts"）==0）{

buf="text/html";

/*Images*/

}elseif（strcmp（dot,".gif"）==0）{

buf="image/gif";

}elseif（strcmp（dot,".png"）==0）{

buf="image/png";

}elseif（strcmp（dot,".bmp"）==0）{

buf="application/x-MS-bmp";

}elseif（strcmp（dot,".jpg"）==0||strcmp（dot,".jpeg"）==0||strcmp（dot,".jpe"）==0||strcmp（dot,".jpz"）==0）{

buf="image/jpeg";

/*Audio&Video*/

}elseif（strcmp（dot,".wav"）==0）{

buf="audio/wav";

}elseif（strcmp（dot,".wma"）==0）{

buf="audio/x-ms-wma";

}elseif（strcmp（dot,".wmv"）==0）{

buf="audio/x-ms-wmv";

}elseif（strcmp（dot,".au"）==0||strcmp（dot,".snd"）==0）{

buf="audio/basic";

}elseif（strcmp（dot,".midi"）==0||strcmp（dot,".mid"）==0）{

buf="audio/midi";

}elseif（strcmp（dot,".mp3"）==0||strcmp（dot,".mp2"）==0）{

buf="audio/x-mpeg";

}elseif（strcmp（dot,".rm"）==0||strcmp（dot,".rmvb"）==0||strcmp（dot,".rmm"）==0）{

buf="audio/x-pn-realaudio";

}elseif（strcmp（dot,".avi"）==0）{

buf="video/x-msvideo";

}elseif（strcmp（dot,".3gp"）==0）{

buf="video/3gpp";

}elseif（strcmp（dot,".mov"）==0）{

buf="video/quicktime";

}elseif（strcmp（dot,".wmx"）==0）{

buf="video/x-ms-wmx";

}elseif（strcmp（dot,".asf"）==0||strcmp（dot,".asx"）==0）{

buf="video/x-ms-asf";

}elseif（strcmp（dot,".mp4"）==0||strcmp（dot,".mpg4"）==0）{

buf="video/mp4";

}elseif（strcmp（dot,".mpe"）==0||strcmp（dot,".mpeg"）==0||strcmp（dot,".mpg"）==0||strcmp（dot,".mpga"）==0）{

buf="video/mpeg";

/*Documents*/

}elseif（strcmp（dot,".pdf"）==0）{

buf="application/pdf";

}elseif（strcmp（dot,".rtf"）==0）{

buf="application/rtf";

}elseif（strcmp（dot,".doc"）==0||strcmp（dot,".dot"）==0）{

buf="application/msword";

}elseif（strcmp（dot,".xls"）==0||strcmp（dot,".xla"）==0）{

buf="application/msexcel";

}elseif（strcmp（dot,".hlp"）==0||strcmp（dot,".chm"）==0）{

buf="application/mshelp";

}elseif（strcmp（dot,".swf"）==0||strcmp（dot,".swfl"）==0||str

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