password changing, changed default pw to "adminpw", added settings revert if validation fails

esphttpdconfig.mk

@@ -39,7 +39,7 @@ OUTPUT_TYPE = combined
 ESP_SPI_FLASH_SIZE_K = 1024
 
 # Admin password, used to store settings to flash as defaults
-ADMIN_PASSWORD = "19738426"
+ADMIN_PASSWORD = "adminpw"
 
 GLOBAL_CFLAGS = \
     -DDEBUG_ROUTER=0 \
@@ -48,7 +48,7 @@ GLOBAL_CFLAGS = \
     -DDEBUG_ESPFS=0 \
     -DDEBUG_PERSIST=1 \
     -DDEBUG_UTFCACHE=0 \
-    -DDEBUG_CGI=0 \
+    -DDEBUG_CGI=1 \
     -DDEBUG_WIFI=0 \
     -DDEBUG_WS=0 \
     -DDEBUG_ANSI=0 \

user/cgi_network.c

@@ -41,6 +41,11 @@ httpd_cgi_state ICACHE_FLASH_ATTR cgiNetworkSetParams(HttpdConnData *connData)
 		return HTTPD_CGI_DONE;
 	}
 
+	WiFiConfigBundle *wificonf_backup = malloc(sizeof(WiFiConfigBundle));
+	WiFiConfChangeFlags *wcf_backup = malloc(sizeof(WiFiConfChangeFlags));
+	memcpy(wificonf_backup, wificonf, sizeof(WiFiConfigBundle));
+	memcpy(wcf_backup, &wifi_change_flags, sizeof(WiFiConfChangeFlags));
+
 	// ---- AP DHCP server lease time ----
 
 	if (GET_ARG("ap_dhcp_time")) {
@@ -192,9 +197,16 @@ httpd_cgi_state ICACHE_FLASH_ATTR cgiNetworkSetParams(HttpdConnData *connData)
 		httpdRedirect(connData, SET_REDIR_SUC);
 	} else {
 		cgi_warn("Some WiFi settings did not validate, asking for correction");
+
+		memcpy(wificonf, wificonf_backup, sizeof(WiFiConfigBundle));
+		memcpy(&wifi_change_flags, wcf_backup, sizeof(WiFiConfChangeFlags));
+
 		// Some errors, appended to the URL as ?err=
 		httpdRedirect(connData, redir_url_buf);
 	}
+
+	free(wificonf_backup);
+	free(wcf_backup);
 	return HTTPD_CGI_DONE;
 }
 

user/cgi_system.c

@@ -91,127 +91,81 @@ cgiSystemCfgSetParams(HttpdConnData *connData)
 		return HTTPD_CGI_DONE;
 	}
 
-	if (GET_ARG("uart_baud")) {
-		cgi_dbg("Baud rate: %s", buff);
-		int baud = atoi(buff);
-		if (baud == BIT_RATE_300 ||
-				baud == BIT_RATE_600 ||
-				baud == BIT_RATE_1200 ||
-				baud == BIT_RATE_2400 ||
-				baud == BIT_RATE_4800 ||
-				baud == BIT_RATE_9600 ||
-				baud == BIT_RATE_19200 ||
-				baud == BIT_RATE_38400 ||
-				baud == BIT_RATE_57600 ||
-				baud == BIT_RATE_74880 ||
-				baud == BIT_RATE_115200 ||
-				baud == BIT_RATE_230400 ||
-				baud == BIT_RATE_460800 ||
-				baud == BIT_RATE_921600 ||
-				baud == BIT_RATE_1843200 ||
-				baud == BIT_RATE_3686400) {
-			sysconf->uart_baudrate = (u32) baud;
-		} else {
-			cgi_warn("Bad baud rate %s", buff);
-			redir_url += sprintf(redir_url, "uart_baud,");
-		}
-	}
+	AdminConfigBlock *admin_backup = malloc(sizeof(AdminConfigBlock));
+	SystemConfigBundle *sysconf_backup = malloc(sizeof(SystemConfigBundle));
+	memcpy(admin_backup, &persist.admin, sizeof(AdminConfigBlock));
+	memcpy(sysconf_backup, sysconf, sizeof(SystemConfigBundle));
 
-	if (GET_ARG("uart_parity")) {
-		cgi_dbg("Parity: %s", buff);
-		int parity = atoi(buff);
-		if (parity >= 0 && parity <= 2) {
-			sysconf->uart_parity = (UartParityMode) parity;
-		} else {
-			cgi_warn("Bad parity %s", buff);
-			redir_url += sprintf(redir_url, "uart_parity,");
-		}
-	}
-
-	if (GET_ARG("uart_stopbits")) {
-		cgi_dbg("Stop bits: %s", buff);
-		int stopbits = atoi(buff);
-		if (stopbits >= 1 && stopbits <= 3) {
-			sysconf->uart_stopbits = (UartStopBitsNum) stopbits;
-		} else {
-			cgi_warn("Bad stopbits %s", buff);
-			redir_url += sprintf(redir_url, "uart_stopbits,");
-		}
-	}
-
-	if (GET_ARG("security")) {
-		cgi_dbg("*** Security config! ***");
-
-		if (GET_ARG("pw")) {
-			if (streq(buff, persist.admin.pw)) {
-				// authenticated OK
-				do {
-					if (GET_ARG("pwlock")) {
-						cgi_dbg("pwlock: %s", buff);
-						int pwlock = atoi(buff);
-						if (pwlock >= 0 && pwlock < PWLOCK_MAX) {
-							sysconf->pwlock = (enum pwlock) pwlock;
-						}
-						else {
-							cgi_warn("Bad pwlock %s", buff);
-							redir_url += sprintf(redir_url, "pwlock,");
-							break;
-						}
-					}
-
-					if (GET_ARG("access_pw")) {
-						cgi_dbg("access_pw: %s", buff);
-
-						strcpy(buff2, buff);
-						if (GET_ARG("access_pw2")) {
-							cgi_dbg("access_pw2: %s", buff);
-
-							if (streq(buff, buff2)) {
-								cgi_dbg("Changing access PW!!!");
-								strncpy(sysconf->access_pw, buff, 64);
-							} else {
-								cgi_warn("Bad repeated access_pw %s", buff);
-								redir_url += sprintf(redir_url, "access_pw2,");
-							}
-						} else {
-							cgi_warn("Missing access_pw %s", buff);
-							redir_url += sprintf(redir_url, "access_pw2,");
-						}
-
-						break; // access pw and admin pw are in separate forms
-					}
-
-					if (GET_ARG("admin_pw")) {
-						cgi_dbg("admin_pw: %s", buff);
-
-						strcpy(buff2, buff);
-						if (GET_ARG("admin_pw2")) {
-							cgi_dbg("admin_pw2: %s", buff);
-
-							if (streq(buff, buff2)) {
-								cgi_dbg("Changing admin PW!!!");
-								strncpy(persist.admin.pw, buff, 64);
-							} else {
-								cgi_warn("Bad repeated admin_pw %s", buff);
-								redir_url += sprintf(redir_url, "admin_pw2,");
-							}
-						} else {
-							cgi_warn("Missing admin_pw %s", buff);
-							redir_url += sprintf(redir_url, "admin_pw2,");
-						}
-
-						break;
-					}
-				} while(0);
-			} else {
-				warn("Bad admin pw!");
-				redir_url += sprintf(redir_url, "pw,");
-			}
-		} else {
+	do {
+		if (!GET_ARG("pw")) {
 			warn("Missing admin pw!");
 			redir_url += sprintf(redir_url, "pw,");
+			break;
 		}
-	}
+
+		if (!streq(buff, persist.admin.pw)) {
+			warn("Bad admin pw!");
+			redir_url += sprintf(redir_url, "pw,");
+			break;
+		}
+
+		// authenticated OK
+		if (GET_ARG("pwlock")) {
+			cgi_dbg("pwlock: %s", buff);
+			int pwlock = atoi(buff);
+			if (pwlock < 0 || pwlock >= PWLOCK_MAX) {
+				cgi_warn("Bad pwlock %s", buff);
+				redir_url += sprintf(redir_url, "pwlock,");
+				break;
+			}
+
+			sysconf->pwlock = (enum pwlock) pwlock;
+		}
+
+		if (GET_ARG("access_pw")) {
+			cgi_dbg("access_pw: %s", buff);
+
+			if (strlen(buff)) {
+				strcpy(buff2, buff);
+				if (!GET_ARG("access_pw2")) {
+					cgi_warn("Missing repeated access_pw %s", buff);
+					redir_url += sprintf(redir_url, "access_pw2,");
+					break;
+				}
+
+				if (!streq(buff, buff2)) {
+					cgi_warn("Bad repeated access_pw %s", buff);
+					redir_url += sprintf(redir_url, "access_pw2,");
+					break;
+				}
+
+				cgi_dbg("Changing access PW!!!");
+				strncpy(sysconf->access_pw, buff, 64);
+			}
+		}
+
+		if (GET_ARG("admin_pw")) {
+			cgi_dbg("admin_pw: %s", buff);
+
+			if (strlen(buff)) {
+				strcpy(buff2, buff);
+				if (!GET_ARG("admin_pw2")) {
+					cgi_warn("Missing repeated admin_pw %s", buff);
+					redir_url += sprintf(redir_url, "admin_pw2,");
+					break;
+				}
+
+				if (!streq(buff, buff2)) {
+					cgi_warn("Bad repeated admin_pw %s", buff);
+					redir_url += sprintf(redir_url, "admin_pw2,");
+					break;
+				}
+
+				cgi_dbg("Changing admin PW!!!");
+				strncpy(persist.admin.pw, buff, 64);
+			}
+		}
+	} while (0);
 
 	(void)redir_url;
 
@@ -225,9 +179,17 @@ cgiSystemCfgSetParams(HttpdConnData *connData)
 		httpdRedirect(connData, SET_REDIR_SUC);
 	} else {
 		cgi_warn("Some settings did not validate, asking for correction");
+
+		// revert any possible changes
+		memcpy(&persist.admin, admin_backup, sizeof(AdminConfigBlock));
+		memcpy(sysconf, sysconf_backup, sizeof(SystemConfigBundle));
+
 		// Some errors, appended to the URL as ?err=
 		httpdRedirect(connData, redir_url_buf);
 	}
+
+	free(admin_backup);
+	free(sysconf_backup);
 	return HTTPD_CGI_DONE;
 }
 
@@ -245,16 +207,7 @@ tplSystemCfg(HttpdConnData *connData, char *token, void **arg)
 
 	strcpy(buff, ""); // fallback
 
-	if (streq(token, "uart_baud")) {
-		sprintf(buff, "%d", sysconf->uart_baudrate);
-	}
-	else if (streq(token, "uart_parity")) {
-		sprintf(buff, "%d", sysconf->uart_parity);
-	}
-	else if (streq(token, "uart_stopbits")) {
-		sprintf(buff, "%d", sysconf->uart_stopbits);
-	}
-	else if (streq(token, "pwlock")) {
+	if (streq(token, "pwlock")) {
 		sprintf(buff, "%d", sysconf->pwlock);
 	}
 

user/cgi_term_cfg.c

@@ -9,6 +9,7 @@ Cgi/template routines for configuring non-wifi settings
 #include "screen.h"
 #include "helpers.h"
 #include "cgi_logging.h"
+#include "uart_driver.h"
 
 #define SET_REDIR_SUC "/cfg/term"
 #define SET_REDIR_ERR SET_REDIR_SUC"?err="
@@ -30,6 +31,11 @@ cgiTermCfgSetParams(HttpdConnData *connData)
 	redir_url += sprintf(redir_url, SET_REDIR_ERR);
 	// we'll test if anything was printed by looking for \0 in failed_keys_buf
 
+	SystemConfigBundle *sysconf_backup = malloc(sizeof(SystemConfigBundle));
+	TerminalConfigBundle *termconf_backup = malloc(sizeof(TerminalConfigBundle));
+	memcpy(sysconf_backup, sysconf, sizeof(SystemConfigBundle));
+	memcpy(termconf_backup, termconf, sizeof(TerminalConfigBundle));
+
 	if (connData->conn == NULL) {
 		//Connection aborted. Clean up.
 		return HTTPD_CGI_DONE;
@@ -39,34 +45,40 @@ cgiTermCfgSetParams(HttpdConnData *connData)
 	if (GET_ARG("term_width")) {
 		cgi_dbg("Default screen width: %s", buff);
 		w = atoi(buff);
-		if (w > 1) {
-			if (GET_ARG("term_height")) {
-				cgi_dbg("Default screen height: %s", buff);
-				h = atoi(buff);
-				if (h > 1) {
-					if (w * h <= MAX_SCREEN_SIZE) {
-						if (termconf->width != w || termconf->height != h) {
-							termconf->width = w;
-							termconf->height = h;
-							shall_clear_screen = true; // this causes a notify
-						}
-					} else {
-						cgi_warn("Bad dimensions: %d x %d (total %d)", w, h, w*h);
-						redir_url += sprintf(redir_url, "term_width,term_height,");
-					}
-				} else {
-					cgi_warn("Bad height: \"%s\"", buff);
-					redir_url += sprintf(redir_url, "term_width,");
-				}
-			} else {
+		do {
+			if (w <= 1) {
+				cgi_warn("Bad width: \"%s\"", buff);
+				redir_url += sprintf(redir_url, "term_width,");
+				break;
+			}
+
+			if (!GET_ARG("term_height")) {
 				cgi_warn("Missing height arg!");
 				// this wont happen normally when the form is used
 				redir_url += sprintf(redir_url, "term_width,term_height,");
+				break;
 			}
-		} else {
-			cgi_warn("Bad width: \"%s\"", buff);
-			redir_url += sprintf(redir_url, "term_width,");
-		}
+
+			cgi_dbg("Default screen height: %s", buff);
+			h = atoi(buff);
+			if (h <= 1) {
+				cgi_warn("Bad height: \"%s\"", buff);
+				redir_url += sprintf(redir_url, "term_height,");
+				break;
+			}
+
+			if (w * h > MAX_SCREEN_SIZE) {
+				cgi_warn("Bad dimensions: %d x %d (total %d)", w, h, w * h);
+				redir_url += sprintf(redir_url, "term_width,term_height,");
+				break;
+			}
+
+			if (termconf->width != w || termconf->height != h) {
+				termconf->width = w;
+				termconf->height = h;
+				shall_clear_screen = true; // this causes a notify
+			}
+		} while (0);
 	}
 
 	if (GET_ARG("default_bg")) {
@@ -265,6 +277,56 @@ cgiTermCfgSetParams(HttpdConnData *connData)
 		}
 	}
 
+	if (GET_ARG("uart_baud")) {
+		cgi_dbg("Baud rate: %s", buff);
+		int baud = atoi(buff);
+		if (baud == BIT_RATE_300 ||
+			baud == BIT_RATE_600 ||
+			baud == BIT_RATE_1200 ||
+			baud == BIT_RATE_2400 ||
+			baud == BIT_RATE_4800 ||
+			baud == BIT_RATE_9600 ||
+			baud == BIT_RATE_19200 ||
+			baud == BIT_RATE_38400 ||
+			baud == BIT_RATE_57600 ||
+			baud == BIT_RATE_74880 ||
+			baud == BIT_RATE_115200 ||
+			baud == BIT_RATE_230400 ||
+			baud == BIT_RATE_460800 ||
+			baud == BIT_RATE_921600 ||
+			baud == BIT_RATE_1843200 ||
+			baud == BIT_RATE_3686400) {
+			sysconf->uart_baudrate = (u32) baud;
+		} else {
+			cgi_warn("Bad baud rate %s", buff);
+			redir_url += sprintf(redir_url, "uart_baud,");
+		}
+	}
+
+	if (GET_ARG("uart_parity")) {
+		cgi_dbg("Parity: %s", buff);
+		int parity = atoi(buff);
+		if (parity >= 0 && parity <= 2) {
+			sysconf->uart_parity = (UartParityMode) parity;
+		} else {
+			cgi_warn("Bad parity %s", buff);
+			redir_url += sprintf(redir_url, "uart_parity,");
+		}
+	}
+
+	if (GET_ARG("uart_stopbits")) {
+		cgi_dbg("Stop bits: %s", buff);
+		int stopbits = atoi(buff);
+		if (stopbits >= 1 && stopbits <= 3) {
+			sysconf->uart_stopbits = (UartStopBitsNum) stopbits;
+		} else {
+			cgi_warn("Bad stopbits %s", buff);
+			redir_url += sprintf(redir_url, "uart_stopbits,");
+		}
+	}
+
+	(void)redir_url;
+
 	if (redir_url_buf[strlen(SET_REDIR_ERR)] == 0) {
 		// All was OK
 		info("Set term params - success, saving...");
@@ -288,9 +350,16 @@ cgiTermCfgSetParams(HttpdConnData *connData)
 		httpdRedirect(connData, SET_REDIR_SUC);
 	} else {
 		cgi_warn("Some settings did not validate, asking for correction");
+
+		memcpy(sysconf, sysconf_backup, sizeof(SystemConfigBundle));
+		memcpy(termconf, termconf_backup, sizeof(TerminalConfigBundle));
+
 		// Some errors, appended to the URL as ?err=
 		httpdRedirect(connData, redir_url_buf);
 	}
+
+	free(sysconf_backup);
+	free(termconf_backup);
 	return HTTPD_CGI_DONE;
 }
 
@@ -357,6 +426,15 @@ tplTermCfg(HttpdConnData *connData, char *token, void **arg)
 	else if (streq(token, "term_title")) {
 		strncpy_safe(buff, termconf->title, BUFLEN);
 	}
+	else if (streq(token, "uart_baud")) {
+		sprintf(buff, "%d", sysconf->uart_baudrate);
+	}
+	else if (streq(token, "uart_parity")) {
+		sprintf(buff, "%d", sysconf->uart_parity);
+	}
+	else if (streq(token, "uart_stopbits")) {
+		sprintf(buff, "%d", sysconf->uart_stopbits);
+	}
 	else {
 		for (int btn_i = 1; btn_i <= TERM_BTN_COUNT; btn_i++) {
 			sprintf(buff2, "btn%d", btn_i);

user/cgi_wifi.c

@@ -355,6 +355,11 @@ httpd_cgi_state ICACHE_FLASH_ATTR cgiWiFiSetParams(HttpdConnData *connData)
 		return HTTPD_CGI_DONE;
 	}
 
+	WiFiConfigBundle *wificonf_backup = malloc(sizeof(WiFiConfigBundle));
+	WiFiConfChangeFlags *wcf_backup = malloc(sizeof(WiFiConfChangeFlags));
+	memcpy(wificonf_backup, wificonf, sizeof(WiFiConfigBundle));
+	memcpy(wcf_backup, &wifi_change_flags, sizeof(WiFiConfChangeFlags));
+
 	bool sta_turned_on = false;
 	bool sta_ssid_pw_changed = false;
 
@@ -502,6 +507,8 @@ httpd_cgi_state ICACHE_FLASH_ATTR cgiWiFiSetParams(HttpdConnData *connData)
 		}
 	}
 
+	(void)redir_url;
+
 	if (redir_url_buf[strlen(SET_REDIR_ERR)] == 0) {
 		// All was OK
 		cgi_info("Set WiFi params - success, applying in 2000 ms");
@@ -532,9 +539,16 @@ httpd_cgi_state ICACHE_FLASH_ATTR cgiWiFiSetParams(HttpdConnData *connData)
 		}
 	} else {
 		cgi_warn("Some WiFi settings did not validate, asking for correction");
+
+		memcpy(wificonf, wificonf_backup, sizeof(WiFiConfigBundle));
+		memcpy(&wifi_change_flags, wcf_backup, sizeof(WiFiConfChangeFlags));
+
 		// Some errors, appended to the URL as ?err=
 		httpdRedirect(connData, redir_url_buf);
 	}
+
+	free(wificonf_backup);
+	free(wcf_backup);
 	return HTTPD_CGI_DONE;
 }
 

user/syscfg.c

@@ -20,6 +20,8 @@ sysconf_apply_settings(void)
 		sysconf->pwlock = PWLOCK_NONE;
 	}
 
+	sysconf->config_version = SYSCONF_VERSION;
+
 	if (changed) {
 		persist_store();
 	}