diff --git a/esp-link/cgiwifi.c b/esp-link/cgiwifi.c index 81929ea..28861e9 100644 --- a/esp-link/cgiwifi.c +++ b/esp-link/cgiwifi.c @@ -223,8 +223,30 @@ static int ICACHE_FLASH_ATTR cgiWiFiStartScan(HttpdConnData *connData) { static int ICACHE_FLASH_ATTR cgiWiFiGetScan(HttpdConnData *connData) { if (connData->conn==NULL) return HTTPD_CGI_DONE; // Connection aborted. Clean up. - char buff[2048]; - int len; + char buff[1460]; + const int chunk = 1460/64; // ssid is up to 32 chars + int len = 0; + + // handle continuation call, connData->cgiData-1 is the position in the scan results where we + // we need to continue sending from (using -1 'cause 0 means it's the first call) + if (connData->cgiData) { + int next = (int)connData->cgiData-1; + int pos = next; + while (pos < cgiWifiAps.noAps && pos < next+chunk) { + len += os_sprintf(buff+len, "{\"essid\": \"%s\", \"rssi\": %d, \"enc\": \"%d\"},\n", + cgiWifiAps.apData[pos]->ssid, cgiWifiAps.apData[pos]->rssi, cgiWifiAps.apData[pos]->enc); + } + // done or more? + if (pos == cgiWifiAps.noAps) { + len += os_sprintf(buff+len-1, "]}}\n"); + httpdSend(connData, buff, len); + return HTTPD_CGI_DONE; + } else { + connData->cgiData = (void*)(pos+1); + httpdSend(connData, buff, len); + return HTTPD_CGI_MORE; + } + } jsonHeader(connData, 200); @@ -236,15 +258,9 @@ static int ICACHE_FLASH_ATTR cgiWiFiGetScan(HttpdConnData *connData) { } len = os_sprintf(buff, "{\"result\": {\"inProgress\": \"0\", \"APs\": [\n"); - for (int pos=0; posssid, cgiWifiAps.apData[pos]->rssi, - cgiWifiAps.apData[pos]->enc, (pos==cgiWifiAps.noAps-1)?"":","); - } - len += os_sprintf(buff+len, "]}}\n"); - //os_printf("Sending %d bytes: %s\n", len, buff); + connData->cgiData = (void *)1; // start with first result next time we're called httpdSend(connData, buff, len); - return HTTPD_CGI_DONE; + return HTTPD_CGI_MORE; } int ICACHE_FLASH_ATTR cgiWiFiScan(HttpdConnData *connData) {