Add static coffee file system to webserver
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dak664
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c1b7375a5a
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928bbc206a
9 changed files with 442 additions and 222 deletions
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@ -30,7 +30,7 @@
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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* $Id: httpd.c,v 1.2 2009/06/19 17:11:28 dak664 Exp $
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* $Id: httpd.c,v 1.3 2009/07/23 16:16:07 dak664 Exp $
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*/
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#include <string.h>
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@ -40,14 +40,43 @@
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#include "webserver.h"
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#include "httpd-fs.h"
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#include "httpd-cgi.h"
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//#include "lib/petsciiconv.h"
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//#include "http-strings.h"
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#include "httpd.h"
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//#include "lib/petsciiconv.h"
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#define petsciiconv_topetscii(...)
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//#include "http-strings.h"
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#if COFFEE_FILES
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#include "cfs-coffee-arch.h"
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#endif /* COFFEE_FILES */
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/* DEBUGLOGIC is a convenient way to debug in a simulator without a tcp/ip connection.
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* Break the program in the process loop and step from the entry in httpd_appcall.
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* The input file is forced to /index.html and the output directed to TCPBUF.
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* If cgi's are invoked define it in httpd-cgi.c as well.
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* psock_generator_send in /core/net/psock.c must also be modified as follows:
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* ...
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* // Wait until all data is sent and acknowledged.
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* if (!s->sendlen) break; //<---add this line
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* PT_YIELD_UNTIL(&s->psockpt, uip_acked() || uip_rexmit());
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* ...
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*/
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#define DEBUGLOGIC 0
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#define DEBUG 0
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#if DEBUGLOGIC
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struct httpd_state *sg;
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#define uip_mss(...) 512
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#define uip_appdata TCPBUF
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char TCPBUF[512];
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#endif
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#if DEBUG
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#include <stdio.h>
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#define PRINTF(FORMAT,args...) printf_P(PSTR(FORMAT),##args)
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#else
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#define PRINTF(...)
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#endif
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#ifndef WEBSERVER_CONF_CGI_CONNS
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#define CONNS 4
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#else /* WEBSERVER_CONF_CGI_CONNS */
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#else
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#define CONNS WEBSERVER_CONF_CGI_CONNS
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#endif /* WEBSERVER_CONF_CGI_CONNS */
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@ -57,6 +86,8 @@
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//#define SEND_STRING(s, str) PSOCK_SEND(s, (uint8_t *)str, (unsigned int)strlen(str))
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MEMB(conns, struct httpd_state, CONNS);
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/* MAX_SCRIPT_NAME_LENGTH should be at least be the maximum file name length+2 for %!: includes */
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#define MAX_SCRIPT_NAME_LENGTH 20
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#define ISO_tab 0x09
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#define ISO_nl 0x0a
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#define ISO_cr 0x0d
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@ -78,10 +109,12 @@ generate(void *state)
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} else {
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s->len = s->file.len;
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}
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httpd_fs_cpy(uip_appdata, s->file.data, s->len);
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#if DEBUGLOGIC
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return 0;
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#else
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return s->len;
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#endif
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}
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/*---------------------------------------------------------------------------*/
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static
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@ -89,12 +122,12 @@ PT_THREAD(send_file(struct httpd_state *s))
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{
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PSOCK_BEGIN(&s->sout);
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do {
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do {
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PSOCK_GENERATOR_SEND(&s->sout, generate, s);
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s->file.len -= s->len;
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s->file.len -= s->len;
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s->file.data += s->len;
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} while(s->file.len > 0);
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PSOCK_END(&s->sout);
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}
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/*---------------------------------------------------------------------------*/
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@ -102,15 +135,15 @@ static
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PT_THREAD(send_part_of_file(struct httpd_state *s))
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{
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PSOCK_BEGIN(&s->sout);
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static int oldfilelen, oldlen;
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static char * olddata;
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//Store stuff that gets clobbered...
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oldfilelen = s->file.len;
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oldlen = s->len;
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olddata = s->file.data;
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//How much to send
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s->file.len = s->len;
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@ -119,7 +152,7 @@ PT_THREAD(send_part_of_file(struct httpd_state *s))
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s->file.len -= s->len;
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s->file.data += s->len;
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} while(s->file.len > 0);
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s->len = oldlen;
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s->file.len = oldfilelen;
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s->file.data = olddata;
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@ -131,11 +164,11 @@ static void
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next_scriptstate(struct httpd_state *s)
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{
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char *p;
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/* Skip over any script parameters to the beginning of the next line */
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if((p = (char *)httpd_fs_strchr(s->scriptptr, ISO_nl)) != NULL) {
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p += 1;
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s->scriptlen -= (unsigned short)(p - s->scriptptr);
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s->scriptptr = p;
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s->scriptptr = p;
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} else {
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s->scriptlen = 0;
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}
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@ -147,58 +180,67 @@ next_scriptstate(struct httpd_state *s)
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}
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/*---------------------------------------------------------------------------*/
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void
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memcpy_P_trim(char *toram, char *fromflash)
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char *
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get_scriptname(char *dest, char *fromfile)
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{
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uint8_t i;
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for (i=0;i<19;) {
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toram[i]=pgm_read_byte_near(fromflash++);
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if (toram[i]==ISO_tab) {if (i) break; else continue;} //skip leading tabs
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if (toram[i]==ISO_space) {if (i) break; else continue;} //skip leading spaces
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if (toram[i]==ISO_nl) break; //nl is preferred delimiter
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if (toram[i]==ISO_cr) break; //some editors insert cr
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if (toram[i]==0) break; //files are terminated with null
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uint8_t i=0,skip=1;
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/* Extract a file or cgi name, trim leading spaces and replace termination with zero */
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/* Returns number of characters processed up to the next non-tab or space */
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do {
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dest[i]=httpd_fs_getchar(fromfile++);
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if (dest[i]==ISO_colon) {if (!skip) break;} //allow leading colons
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else if (dest[i]==ISO_tab ) {if (skip) continue;else break;}//skip leading tabs
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else if (dest[i]==ISO_space) {if (skip) continue;else break;}//skip leading spaces
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else if (dest[i]==ISO_nl ) break; //nl is preferred delimiter
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else if (dest[i]==ISO_cr ) break; //some editors insert cr
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else if (dest[i]==0 ) break; //files are terminated with null
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else skip=0;
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i++;
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}
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toram[i]=0;
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}
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} while (i<(MAX_SCRIPT_NAME_LENGTH+1));
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fromfile--;
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while ((dest[i]==ISO_space) || (dest[i]==ISO_tab)) dest[i]=httpd_fs_getchar(++fromfile);
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dest[i]=0;
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return (fromfile);
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}
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/*---------------------------------------------------------------------------*/
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static char filenamebuf[25],*pptr;//See below!
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static
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PT_THREAD(handle_script(struct httpd_state *s))
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{
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// char *ptr; //one of these gets whomped unless in globals
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// char filenamebuf[25];
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/* Note script includes will attach a leading : to the filename and a trailing zero */
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static char scriptname[MAX_SCRIPT_NAME_LENGTH+1],*pptr;
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static uint16_t filelength;
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PT_BEGIN(&s->scriptpt);
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filelength=s->file.len;
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while(s->file.len > 0) {
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/* Sanity check */
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if (s->file.len > filelength) break;
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/* Check if we should start executing a script. */
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/* Check if we should start executing a script, flagged by %! */
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if(httpd_fs_getchar(s->file.data) == ISO_percent &&
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httpd_fs_getchar(s->file.data + 1) == ISO_bang) {
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s->scriptptr = s->file.data + 3;
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s->scriptlen = s->file.len - 3;
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memcpy_P_trim(filenamebuf,s->scriptptr);
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if(httpd_fs_getchar(s->scriptptr - 1) == ISO_colon) {
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httpd_fs_open(filenamebuf, &s->file);
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PT_WAIT_THREAD(&s->scriptpt, send_file(s));
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} else {
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PT_WAIT_THREAD(&s->scriptpt,
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httpd_cgi(filenamebuf)(s, s->scriptptr));
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}
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next_scriptstate(s);
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/* Extract name, if starts with colon include file else call cgi */
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s->scriptptr=get_scriptname(scriptname,s->file.data+2);
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s->scriptlen=s->file.len-(s->scriptptr-s->file.data);
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PRINTF("httpd: Handle script named %s\n",scriptname);
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if(scriptname[0] == ISO_colon) {
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if (httpd_fs_open(&scriptname[1], &s->file)) {
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PT_WAIT_THREAD(&s->scriptpt, send_file(s));
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}
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} else {
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PT_WAIT_THREAD(&s->scriptpt,httpd_cgi(scriptname)(s, s->scriptptr));
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}
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next_scriptstate(s);
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/* The script is over, so we reset the pointers and continue
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sending the rest of the file. */
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/* Reset the pointers and continue sending the current file. */
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s->file.data = s->scriptptr;
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s->file.len = s->scriptlen;
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s->file.len = s->scriptlen;
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} else {
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/* See if we find the start of script marker in the block of HTML
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to be sent. */
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/* Send file up to the next potential script */
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if(s->file.len > uip_mss()) {
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s->len = uip_mss();
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} else {
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@ -210,15 +252,17 @@ PT_THREAD(handle_script(struct httpd_state *s))
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} else {
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pptr = (char *) httpd_fs_strchr(s->file.data, ISO_percent);
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}
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if(pptr != NULL && pptr != s->file.data) {
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s->len = (int)(pptr - s->file.data);
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if(s->len >= uip_mss()) {
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s->len = uip_mss();
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}
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}
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PRINTF("httpd: Sending %u bytes from 0x%04x\n",s->file.len,s->file.data);
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PT_WAIT_THREAD(&s->scriptpt, send_part_of_file(s));
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s->file.data += s->len;
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s->file.len -= s->len;
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s->file.len -= s->len;
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}
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}
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@ -233,7 +277,11 @@ generate_status_P(void *pstr)
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memcpy_P(uip_appdata+9, pstr, slen);
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slen+=9;
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memcpy_P(uip_appdata+slen, PSTR("\r\nServer: Contiki/2.0 http://www.sics.se/contiki/\r\nConnection: close\r\n"), 70);
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#if DEBUGLOGIC
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return 0;
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#else
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return slen+70;
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#endif
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}
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/*---------------------------------------------------------------------------*/
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static unsigned short
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@ -244,7 +292,11 @@ generate_header_P(void *pstr)
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memcpy_P(uip_appdata+14, pstr, slen);
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slen+=14;
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memcpy_P(uip_appdata+slen,PSTR("\r\n\r\n"),4);
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#if DEBUGLOGIC
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return 0;
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#else
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return slen+4;
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#endif
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}
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/*---------------------------------------------------------------------------*/
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@ -296,7 +348,9 @@ PT_THREAD(handle_output(struct httpd_state *s))
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char *ptr;
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PT_BEGIN(&s->outputpt);
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// strcpy(s->filename,"/index.html"); //for debugging
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#if DEBUGLOGIC
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strcpy(s->filename,"/index.html");
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#endif
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if(!httpd_fs_open(s->filename, &s->file)) {
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strcpy_P(s->filename, PSTR("/404.html"));
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httpd_fs_open(s->filename, &s->file);
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@ -320,7 +374,8 @@ char http_get[4] PROGMEM ="GET ";
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char http_ref[8] PROGMEM ="Referer:";
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static
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PT_THREAD(handle_input(struct httpd_state *s))
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{
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{
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PSOCK_BEGIN(&s->sin);
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PSOCK_READTO(&s->sin, ISO_space);
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@ -350,7 +405,7 @@ PT_THREAD(handle_input(struct httpd_state *s))
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if(strncmp_P(s->inputbuf, http_ref, 8) == 0) {
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s->inputbuf[PSOCK_DATALEN(&s->sin) - 2] = 0;
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// petsciiconv_topetscii(s->inputbuf, PSOCK_DATALEN(&s->sin) - 2);
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petsciiconv_topetscii(s->inputbuf, PSOCK_DATALEN(&s->sin) - 2);
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webserver_log(s->inputbuf);
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}
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}
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@ -360,17 +415,25 @@ PT_THREAD(handle_input(struct httpd_state *s))
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static void
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handle_connection(struct httpd_state *s)
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{
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#if DEBUGLOGIC
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handle_output(s);
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#else
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handle_input(s);
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if(s->state == STATE_OUTPUT) {
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handle_output(s);
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}
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#endif
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}
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/*---------------------------------------------------------------------------*/
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void
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httpd_appcall(void *state)
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{
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#if DEBUGLOGIC
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struct httpd_state *s; //Enter here for debugging with output directed to TCPBUF
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s = sg = (struct httpd_state *)memb_alloc(&conns);
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if (1) {
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#else
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struct httpd_state *s = (struct httpd_state *)state;
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if(uip_closed() || uip_aborted() || uip_timedout()) {
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if(s != NULL) {
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memb_free(&conns, s);
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@ -381,6 +444,7 @@ httpd_appcall(void *state)
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uip_abort();
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return;
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}
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#endif
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tcp_markconn(uip_conn, s);
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PSOCK_INIT(&s->sin, (uint8_t *)s->inputbuf, sizeof(s->inputbuf) - 1);
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PSOCK_INIT(&s->sout, (uint8_t *)s->inputbuf, sizeof(s->inputbuf) - 1);
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@ -393,8 +457,8 @@ httpd_appcall(void *state)
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if(uip_poll()) {
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++s->timer;
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if(s->timer >= 20) {
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uip_abort();
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memb_free(&conns, s);
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uip_abort();
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memb_free(&conns, s);
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}
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} else {
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s->timer = 0;
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