Http Server C语言.docx

1、Http Server C语言#include #include #include #include #include #include #include #include #include #include #include #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#define HTTP_PORT 2010#define MAX_CONNECTION 10#define DOCUMENT_ROOT www#define LOG_PATH log/access.logvoid parser(char *s,char r

2、es255,char host255);static char *strtoupper( char *s );static long filesize(const char *filename);static int file_exists(const char *filename);static void mime_content_type( const char *name, char *ret );static int WriteLog( const char *message );static int is_dir(const char *filename);static unsign

3、ed short g_is_log = 1;static int g_log_fd = 0;int main(void) int server_sock; int client_sock; struct sockaddr_in server_addr; struct sockaddr_in client_addr; struct sockaddr_in sin; struct stat file_stat; pid_t pid; char client_ip100; char buf20000; char buf_all2000; char buf12000; char p3255; char

4、 h3255; char tmp2000; char cwd1024; char filename2000; char filepath2000; int fd,size; int currentConn = 0; DIR * dir; struct dirent * ptr; chdir(./); if ( (pid = fork() 0 ) perror(fork); exit(1); else if ( pid != 0) exit(1); if(server_sock = socket(AF_INET,SOCK_STREAM,0) 0) perror(socket); exit(1);

5、 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,(struct sockaddr*)&server_addr,sizeof(server_addr) 0) perror(bind); exit(1); if(listen(server_sock,MAX_CONN

6、ECTION) 0) perror(listen); exit(1); printf(fasthttp successful created .n); while(1) unsigned int clientlen = sizeof(client_addr); if(client_sock = accept(server_sock,(struct sockaddr*)&client_addr,&clientlen) 0) perror(accept); exit(1); if(pid = fork() = 0) if(read(client_sock,buf,20000) 0) perror(

7、read data from client); exit(1); parser(buf,p,h); if(strcmp(strtoupper(p0),GET) != 0 & strcmp(strtoupper(p0),POST) != 0 & strcmp(strtoupper(p0),HEAD) != 0) memset(&buf,0,sizeof(buf); sprintf(buf, HTTP/1.1 501 Not ImplementedrnServer: %srnContent-Type: text/htmlrnContent-Length: 1489rnAccept-Ranges:

8、bytesrnConnection: closernrn, Apache); write(client_sock,buf,strlen(buf); memset(&buf,0,sizeof(buf); sprintf(buf,%s Method Not Implemented,501); write(client_sock,buf,strlen(buf); close(client_sock); exit(0); if(strcmp(p1,/) = 0) memset(&tmp,0,sizeof(tmp); sprintf(tmp,%s,index.html); strcat(p1,tmp);

9、 WriteLog(p1); getcwd(filepath, sizeof(filepath); strcat(filepath,/); strcat(filepath,DOCUMENT_ROOT); strcat(filepath,p1); if(!file_exists(filepath) memset(&buf,0,sizeof(buf); sprintf(buf, HTTP/1.1 404 Not FoundrnServer: %srnContent-Type: text/htmlrnContent-Length: 257271rnConnection: closernrn, Apa

10、che); write(client_sock,buf,strlen(buf); memset(&buf,0,sizeof(buf); sprintf(buf,404 Not Found404 Not FoundPowered by %s,fasthttp); write(client_sock,buf,strlen(buf); close(client_sock); memset(&buf,0,sizeof(buf); sprintf(buf,404 Not Foundt%sn,filepath); WriteLog(buf); exit(0); if(access(filepath,R_O

11、K) 0) memset(&buf,0,sizeof(buf); sprintf(buf, HTTP/1.1 403 ForbiddenrnServer: %srnContent-Type: text/htmlrnContent-Length: 25727rnConnection: closernrn, 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,Inde

12、x of %sIndex of %s Parent Directory,filepath,filepath); 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(&b

13、uf,0,sizeof(buf); sprintf(buf, %s/,ptr-d_name,ptr-d_name); else memset(&buf,0,sizeof(buf); sprintf(buf, %s,ptr-d_name,ptr-d_name); strcat(tmp,buf); closedir(dir); memset(&buf,0,sizeof(buf); sprintf(buf,%s,); strcat(tmp,buf); memset(&buf,0,sizeof(buf); sprintf(buf, HTTP/1.1 200 OKrnServer: fasthttprn

14、Content-Type: text/html;charset=utf-8rnContent-Length: %drnConnection: closernrn, 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/1.1 200 OK

15、rnServer: %srnContent-Type: %srnContent-Length: 25727rnConnection: closernrn, 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,

16、0,sizeof(buf); sprintf(buf,200 OKt%st%dn,filepath,filesize(filepath); WriteLog(buf); exit(0); else wait(NULL); close(client_sock); void parser(char *s,char res255,char host255) int i,j = 0; int n; char hosts255; for (i = 0;si != r;i+) /* obtain the first line in http protocol head */ ; si = 0; n=i+;

17、 for (i = 0,j = 0;i 3;i+,j+) /* divide the protocol head in blank */ strcpy(resj,strsep(&s, ); for(i=n;si != r;i+) strcat(hosts,si); for (i = 0,j = 0;i 3;i+,j+) /* divide the protocol head in blank */ strcpy(hostj,strsep(&hosts,:); /* * strtoupper - string to upper * */static char *strtoupper( char

18、*s ) int i, len = sizeof(s); for( i = 0; i = a & si = z ? si + A - a : si ); return(s);/* * filesize - get file size */static long filesize(const char *filename) struct stat buf; if (!stat(filename, &buf) return buf.st_size; return 0;/* * file_exists - check file is exist */static int file_exists(co

19、nst char *filename) struct stat buf; if (stat(filename, &buf) 0) if (errno = ENOENT) return 0; return 1;/* * Get MIME type header * */static void mime_content_type( const char *name, char *ret ) char *dot, *buf; dot = strrchr(name, .); /* Text */ if ( strcmp(dot, .txt) = 0 ) buf = text/plain; else i

20、f ( strcmp( dot, .css ) = 0 ) buf = text/css; else if ( strcmp( dot, .js ) = 0 ) buf = text/javascript; else if ( strcmp(dot, .xml) = 0 | strcmp(dot, .xsl) = 0 ) buf = text/xml; else if ( strcmp(dot, .xhtm) = 0 | strcmp(dot, .xhtml) = 0 | strcmp(dot, .xht) = 0 ) buf = application/xhtml+xml; else if

21、( strcmp(dot, .html) = 0 | strcmp(dot, .htm) = 0 | strcmp(dot, .shtml) = 0 | strcmp(dot, .hts) = 0 ) buf = text/html; /* Images */ else if ( strcmp( dot, .gif ) = 0 ) buf = image/gif; else if ( strcmp( dot, .png ) = 0 ) buf = image/png; else if ( strcmp( dot, .bmp ) = 0 ) buf = application/x-MS-bmp;

22、 else if ( strcmp( dot, .jpg ) = 0 | strcmp( dot, .jpeg ) = 0 | strcmp( dot, .jpe ) = 0 | strcmp( dot, .jpz ) = 0 ) buf = image/jpeg; /* Audio & Video */ else if ( strcmp( dot, .wav ) = 0 ) buf = audio/wav; else if ( strcmp( dot, .wma ) = 0 ) buf = audio/x-ms-wma; else if ( strcmp( dot, .wmv ) = 0 )

23、 buf = audio/x-ms-wmv; else if ( strcmp( dot, .au ) = 0 | strcmp( dot, .snd ) = 0 ) buf = audio/basic; else if ( strcmp( dot, .midi ) = 0 | strcmp( dot, .mid ) = 0 ) buf = audio/midi; else if ( strcmp( dot, .mp3 ) = 0 | strcmp( dot, .mp2 ) = 0 ) buf = audio/x-mpeg; else if ( strcmp( dot, .rm ) = 0 |

24、 strcmp( dot, .rmvb ) = 0 | strcmp( dot, .rmm ) = 0 ) buf = audio/x-pn-realaudio; else if ( strcmp( dot, .avi ) = 0 ) buf = video/x-msvideo; else if ( strcmp( dot, .3gp ) = 0 ) buf = video/3gpp; else if ( strcmp( dot, .mov ) = 0 ) buf = video/quicktime; else if ( strcmp( dot, .wmx ) = 0 ) buf = vide

25、o/x-ms-wmx; else if ( strcmp( dot, .asf ) = 0 | strcmp( dot, .asx ) = 0 ) buf = video/x-ms-asf; else if ( strcmp( dot, .mp4 ) = 0 | strcmp( dot, .mpg4 ) = 0 ) buf = video/mp4; else if ( strcmp( dot, .mpe ) = 0 | strcmp( dot, .mpeg ) = 0 | strcmp( dot, .mpg ) = 0 | strcmp( dot, .mpga ) = 0 ) buf = vi

26、deo/mpeg; /* Documents */ else if ( strcmp( dot, .pdf ) = 0 ) buf = application/pdf; else if ( strcmp( dot, .rtf ) = 0 ) buf = application/rtf; else if ( strcmp( dot, .doc ) = 0 | strcmp( dot, .dot ) = 0 ) buf = application/msword; else if ( strcmp( dot, .xls ) = 0 | strcmp( dot, .xla ) = 0 ) buf = application/msexcel; else if ( strcmp( dot, .hlp ) = 0 | strcmp( dot, .chm ) = 0 ) buf = application/mshelp; else if ( strcmp( dot, .swf ) = 0 | strcmp( dot, .swfl ) = 0 | str