//This is a catch-all cgi function. It takes the url passed to it, looks up the corresponding //path in the filesystem and if it exists, passes the file through. This simulates what a normal //webserver would do with static files. int ICACHE_FLASH_ATTR cgiEspFsHook(HttpdConnData *connData) { EspFsFile *file=connData->cgiData; int len; char buff[1024]; if (connData->conn==NULL) { //Connection aborted. Clean up. espFsClose(file); return HTTPD_CGI_DONE; } if (file==NULL) { //First call to this cgi. Open the file so we can read it. file=espFsOpen(connData->url); if (file==NULL) { return HTTPD_CGI_NOTFOUND; } connData->cgiData=file; httpdStartResponse(connData, 200); httpdHeader(connData, "Content-Type", httpdGetMimetype(connData->url)); httpdEndHeaders(connData); return HTTPD_CGI_MORE; } len=espFsRead(file, buff, 1024); if (len>0) espconn_sent(connData->conn, (uint8 *)buff, len); if (len!=1024) { //We're done. espFsClose(file); return HTTPD_CGI_DONE; } else { //Ok, till next time. return HTTPD_CGI_MORE; } }
//This is a catch-all cgi function. It takes the url passed to it, looks up the corresponding //path in the filesystem and if it exists, passes the file through. This simulates what a normal //webserver would do with static files. int ICACHE_FLASH_ATTR cgiEspFsHook(HttpdConnData *connData) { EspFsFile *file=connData->cgiData; int len; char buff[1024]; #ifdef GZIP_COMPRESSION const char *gzipSendResult = NULL; #endif if (connData->conn==NULL) { //Connection aborted. Clean up. espFsClose(file); return HTTPD_CGI_DONE; } if (file==NULL) { //First call to this cgi. Open the file so we can read it. file=espFsOpen(connData->url); if (file==NULL) { return HTTPD_CGI_NOTFOUND; } connData->cgiData=file; httpdStartResponse(connData, 200); httpdHeader(connData, "Content-Type", httpdGetMimetype(connData->url)); #ifdef GZIP_COMPRESSION gzipSendResult = sendGZIPEncodingIfNeeded(connData); if (gzipSendResult != NULL) { httpdEndHeaders(connData); httpdSend(connData, gzipSendResult, os_strlen(gzipSendResult)); return HTTPD_CGI_DONE; } #endif httpdHeader(connData, "Cache-Control", "max-age=3600, must-revalidate"); httpdEndHeaders(connData); return HTTPD_CGI_MORE; } len=espFsRead(file, buff, 1024); if (len>0) espconn_sent(connData->conn, (uint8 *)buff, len); if (len!=1024) { //We're done. espFsClose(file); return HTTPD_CGI_DONE; } else { //Ok, till next time. return HTTPD_CGI_MORE; } }
//This is a catch-all cgi function. It takes the url passed to it, looks up the corresponding //path in the filesystem and if it exists, passes the file through. This simulates what a normal //webserver would do with static files. int ICACHE_FLASH_ATTR cgiEspFsHook(HttpdConnData *connData) { EspFsFile *file=connData->cgiData; int len; char buff[1024]; char acceptEncodingBuffer[64]; int isGzip; if (connData->conn==NULL) { //Connection aborted. Clean up. espFsClose(file); return HTTPD_CGI_DONE; } if (file==NULL) { //First call to this cgi. Open the file so we can read it. file=espFsOpen(connData->url); if (file==NULL) { return HTTPD_CGI_NOTFOUND; } // The gzip checking code is intentionally without #ifdefs because checking // for FLAG_GZIP (which indicates gzip compressed file) is very easy, doesn't // mean additional overhead and is actually safer to be on at all times. // If there are no gzipped files in the image, the code bellow will not cause any harm. // Check if requested file was GZIP compressed isGzip = espFsFlags(file) & FLAG_GZIP; if (isGzip) { // Check the browser's "Accept-Encoding" header. If the client does not // advertise that he accepts GZIP send a warning message (telnet users for e.g.) httpdGetHeader(connData, "Accept-Encoding", acceptEncodingBuffer, 64); if (os_strstr(acceptEncodingBuffer, "gzip") == NULL) { //No Accept-Encoding: gzip header present httpdSend(connData, gzipNonSupportedMessage, -1); espFsClose(file); return HTTPD_CGI_DONE; } } connData->cgiData=file; httpdStartResponse(connData, 200); httpdHeader(connData, "Content-Type", httpdGetMimetype(connData->url)); if (isGzip) { httpdHeader(connData, "Content-Encoding", "gzip"); } httpdHeader(connData, "Cache-Control", "max-age=3600, must-revalidate"); httpdEndHeaders(connData); return HTTPD_CGI_MORE; } len=espFsRead(file, buff, 1024); if (len>0) espconn_sent(connData->conn, (uint8 *)buff, len); if (len!=1024) { //We're done. espFsClose(file); return HTTPD_CGI_DONE; } else { //Ok, till next time. return HTTPD_CGI_MORE; } }
int ICACHE_FLASH_ATTR cgiEspFsTemplate(HttpdConnData *connData) { TplData *tpd=connData->cgiData; int len; int x, sp=0; char *e=NULL; char buff[1025]; if (connData->conn==NULL) { //Connection aborted. Clean up. ((TplCallback)(connData->cgiArg))(connData, NULL, &tpd->tplArg); espFsClose(tpd->file); os_free(tpd); return HTTPD_CGI_DONE; } if (tpd==NULL) { //First call to this cgi. Open the file so we can read it. tpd=(TplData *)os_malloc(sizeof(TplData)); tpd->file=espFsOpen(connData->url); tpd->tplArg=NULL; tpd->tokenPos=-1; if (tpd->file==NULL) { espFsClose(tpd->file); os_free(tpd); return HTTPD_CGI_NOTFOUND; } if (espFsFlags(tpd->file) & FLAG_GZIP) { debug("cgiEspFsTemplate: Trying to use gzip-compressed file %s as template!\n", connData->url); espFsClose(tpd->file); os_free(tpd); return HTTPD_CGI_NOTFOUND; } connData->cgiData=tpd; httpdStartResponse(connData, 200); httpdHeader(connData, "Content-Type", httpdGetMimetype(connData->url)); httpdEndHeaders(connData); return HTTPD_CGI_MORE; } len=espFsRead(tpd->file, buff, 1024); if (len>0) { sp=0; e=buff; for (x=0; x<len; x++) { if (tpd->tokenPos==-1) { //Inside ordinary text. if (buff[x]=='%') { //Send raw data up to now if (sp!=0) httpdSend(connData, e, sp); sp=0; //Go collect token chars. tpd->tokenPos=0; } else { sp++; } } else { if (buff[x]=='%') { if (tpd->tokenPos==0) { //This is the second % of a %% escape string. //Send a single % and resume with the normal program flow. httpdSend(connData, "%", 1); } else { //This is an actual token. tpd->token[tpd->tokenPos++]=0; //zero-terminate token ((TplCallback)(connData->cgiArg))(connData, tpd->token, &tpd->tplArg); } //Go collect normal chars again. e=&buff[x+1]; tpd->tokenPos=-1; } else { if (tpd->tokenPos<(sizeof(tpd->token)-1)) tpd->token[tpd->tokenPos++]=buff[x]; } } } } //Send remaining bit. if (sp!=0) httpdSend(connData, e, sp); if (len!=1024) { //We're done. ((TplCallback)(connData->cgiArg))(connData, NULL, &tpd->tplArg); espFsClose(tpd->file); os_free(tpd); return HTTPD_CGI_DONE; } else { //Ok, till next time. return HTTPD_CGI_MORE; } }
int ICACHE_FLASH_ATTR cgiEspFsTemplate(HttpdConnData *connData) { TplData *tpd=connData->cgiData; int len; int x, sp=0; char *e=NULL; char buff[1025]; if (connData->conn==NULL) { //Connection aborted. Clean up. ((TplCallback)(connData->cgiArg))(connData, NULL, &tpd->tplArg); espFsClose(tpd->file); os_free(tpd); return HTTPD_CGI_DONE; } if (tpd==NULL) { //First call to this cgi. Open the file so we can read it. tpd=(TplData *)os_malloc(sizeof(TplData)); tpd->file=espFsOpen(connData->url); tpd->tplArg=NULL; tpd->tokenPos=-1; if (tpd->file==NULL) { return HTTPD_CGI_NOTFOUND; } connData->cgiData=tpd; httpdStartResponse(connData, 200); httpdHeader(connData, "Content-Type", httpdGetMimetype(connData->url)); httpdEndHeaders(connData); return HTTPD_CGI_MORE; } len=espFsRead(tpd->file, buff, 1024); if (len>0) { sp=0; e=buff; for (x=0; x<len; x++) { if (tpd->tokenPos==-1) { //Inside ordinary text. if (buff[x]=='%') { //Send raw data up to now if (sp!=0) espconn_sent(connData->conn, (uint8 *)e, sp); sp=0; //Go collect token chars. tpd->tokenPos=0; } else { sp++; } } else { if (buff[x]=='%') { tpd->token[tpd->tokenPos++]=0; //zero-terminate token ((TplCallback)(connData->cgiArg))(connData, tpd->token, &tpd->tplArg); //Go collect normal chars again. e=&buff[x+1]; tpd->tokenPos=-1; } else { if (tpd->tokenPos<(sizeof(tpd->token)-1)) tpd->token[tpd->tokenPos++]=buff[x]; } } } } //Send remaining bit. if (sp!=0) espconn_sent(connData->conn, (uint8 *)e, sp); if (len!=1024) { //We're done. ((TplCallback)(connData->cgiArg))(connData, NULL, &tpd->tplArg); espFsClose(tpd->file); return HTTPD_CGI_DONE; } else { //Ok, till next time. return HTTPD_CGI_MORE; } }