#include #ifdef USE_THREADS # include #endif #define STATE_READ_HEADER 1 #define STATE_PARSE_HEADER 2 #define STATE_WRITE_HEADER 3 #define STATE_WRITE_BODY 4 #define STATE_WRITE_FILE 5 #define STATE_WRITE_RANGES 6 #define STATE_FINISHED 7 #define STATE_KEEPALIVE 8 #define STATE_CLOSE 9 #define STATE_CGI_HEADER 10 #define STATE_CGI_BODY_IN 11 #define STATE_CGI_BODY_OUT 12 #ifdef USE_SSL # include #endif #define MAX_HEADER 4096 #define MAX_PATH 2048 #define MAX_HOST 64 #define MAX_MISC 16 #define BR_HEADER 512 #define S1(str) #str #define S(str) S1(str) #define RFC1123 "%a, %d %b %Y %H:%M:%S GMT" struct DIRCACHE { char path[1024]; char mtime[40]; time_t add; char *html; int length; #ifdef USE_THREADS pthread_mutex_t lock_refcount; pthread_mutex_t lock_reading; pthread_cond_t wait_reading; #endif int refcount; int reading; struct DIRCACHE *next; }; struct REQUEST { int fd; /* socket handle */ int state; /* what to to ??? */ time_t ping; /* last read/write (for timeouts) */ int keep_alive; int tcp_cork; struct sockaddr_storage peer; /* client (log) */ char peerhost[MAX_HOST+1]; char peerserv[MAX_MISC+1]; /* request */ char hreq[MAX_HEADER+1]; /* request header */ int lreq; /* request length */ int hdata; /* data in hreq */ char type[MAX_MISC+1]; /* req type */ char hostname[MAX_HOST+1]; /* hostname */ char uri[MAX_PATH+1]; /* req uri */ char path[MAX_PATH+1]; /* file path */ char query[MAX_PATH+1]; /* query string */ int major,minor; /* http version */ char auth[64]; struct strlist *header; char *if_modified; char *if_unmodified; char *if_range; char *range_hdr; int ranges; off_t *r_start; off_t *r_end; char *r_head; int *r_hlen; /* response */ int status; /* status code (log) */ int bc; /* byte counter (log) */ char hres[MAX_HEADER+1]; /* response header */ int lres; /* header length */ char *mime; /* mime type */ char *body; off_t lbody; int bfd; /* file descriptor */ struct stat bst; /* file info */ char mtime[40]; /* RFC 1123 */ off_t written; int head_only; int rh,rb; struct DIRCACHE *dir; /* CGI */ int cgipid; int cgipipe; char cgibuf[MAX_HEADER+1]; int cgilen,cgipos; #ifdef USE_SSL /* SSL */ SSL *ssl_s; #endif /* linked list */ struct REQUEST *next; }; /* --- string lists --------------------------------------------- */ struct strlist { struct strlist *next; char *line; int free_the_mallocs; }; /* add element (list head) */ static void inline list_add(struct strlist **list, char *line, int free_the_mallocs) { struct strlist *elem = malloc(sizeof(struct strlist)); memset(elem,0,sizeof(struct strlist)); elem->next = *list; elem->line = line; elem->free_the_mallocs = free_the_mallocs; *list = elem; } /* free whole list */ static void inline list_free(struct strlist **list) { struct strlist *elem,*next; for (elem = *list; NULL != elem; elem = next) { next = elem->next; if (elem->free_the_mallocs) free(elem->line); free(elem); } *list = NULL; } /* --- main.c --------------------------------------------------- */ extern int debug; extern int tcp_port; extern int max_dircache; extern int virtualhosts; extern int canonicalhost; extern int do_chroot; extern char *server_name; extern char *indexhtml; extern char *cgipath; extern char *doc_root; extern char server_host[]; extern char *userpass; extern char *userdir; extern int lifespan; extern int no_listing; extern time_t now; extern int have_tty; #ifdef USE_SSL extern int with_ssl; extern SSL_CTX *ctx; extern BIO *sbio, *ssl_bio; extern char *certificate; extern char *password; #endif void xperror(int loglevel, char *txt, char *peerhost); void xerror(int loglevel, char *txt, char *peerhost); static void inline close_on_exec(int fd) { if (cgipath) fcntl(fd,F_SETFD,FD_CLOEXEC); } /* --- ssl.c ---------------------------------------------------- */ #ifdef USE_SSL extern int ssl_read(struct REQUEST *req, char *buf, int len); extern int ssl_write(struct REQUEST *req, char *buf, int len); extern int ssl_blk_write(struct REQUEST *req, int offset, int len); extern void init_ssl(void); extern void open_ssl_session(struct REQUEST *req); #endif /* --- request.c ------------------------------------------------ */ void read_request(struct REQUEST *req, int pipelined); void parse_request(struct REQUEST *req); /* --- response.c ----------------------------------------------- */ extern char *h200,*h206,*h302,*h304; extern char *h403,*b403; extern char *h404,*b404; extern char *h500,*b500; extern char *h501,*b501; void mkerror(struct REQUEST *req, int status, int ka); void mkredirect(struct REQUEST *req); void mkheader(struct REQUEST *req, int status); void mkcgi(struct REQUEST *req, char *status, struct strlist *header); void write_request(struct REQUEST *req); /* --- ls.c ----------------------------------------------------- */ void init_quote(void); char* quote(unsigned char *path, int maxlength); struct DIRCACHE *get_dir(struct REQUEST *req, char *filename); void free_dir(struct DIRCACHE *dir); /* --- mime.c --------------------------------------------------- */ char* get_mime(char *file); void init_mime(char *file, char *def); /* --- cgi.c ---------------------------------------------------- */ void cgi_request(struct REQUEST *req); void cgi_read_header(struct REQUEST *req); /* -------------------------------------------------------------- */ #ifdef USE_THREADS # define INIT_LOCK(mutex) pthread_mutex_init(&mutex,NULL) # define FREE_LOCK(mutex) pthread_mutex_destroy(&mutex) # define DO_LOCK(mutex) pthread_mutex_lock(&mutex) # define DO_UNLOCK(mutex) pthread_mutex_unlock(&mutex) # define INIT_COND(cond) pthread_cond_init(&cond,NULL) # define FREE_COND(cond) pthread_cond_destroy(&cond) # define BCAST_COND(cond) pthread_cond_broadcast(&cond); # define WAIT_COND(cond,mutex) pthread_cond_wait(&cond,&mutex); #else # define INIT_LOCK(mutex) /* nothing */ # define FREE_LOCK(mutex) /* nothing */ # define DO_LOCK(mutex) /* nothing */ # define DO_UNLOCK(mutex) /* nothing */ # define INIT_COND(cond) /* nothing */ # define FREE_COND(cond) /* nothing */ # define BCAST_COND(cond) /* nothing */ # define WAIT_COND(cond,mutex) /* nothing */ #endif