0.8.77

* merge PR: BugFix: ACK #1414
* fix suspicious if condition #1416
* prepared API token for access, not functional #1415

src/CHANGES.md

@@ -1,5 +1,10 @@
 # Development Changes
 
+## 0.8.77 - 2024-02-08
+* merge PR: BugFix: ACK #1414
+* fix suspicious if condition #1416
+* prepared API token for access, not functional #1415
+
 ## 0.8.76 - 2024-02-07
 * revert changes from yesterday regarding snprintf and its size #1410, #1411
 * reduced cppcheck linter warnings significantly

src/app.cpp

@@ -239,7 +239,7 @@ void app::updateNtp(void) {
         }
     }
 
-    if ((mSunrise == 0) && (mConfig->sun.lat) && (mConfig->sun.lon)) {
+    if ((0 == mSunrise) && (0.0 != mConfig->sun.lat) && (0.0 != mConfig->sun.lon)) {
         mCalculatedTimezoneOffset = (int8_t)((mConfig->sun.lon >= 0 ? mConfig->sun.lon + 7.5 : mConfig->sun.lon - 7.5) / 15) * 3600;
         tickCalcSunrise();
     }

src/app.h

@@ -251,8 +251,8 @@ class app : public IApp, public ah::Scheduler {
             mProtection->lock();
         }
 
-        void unlock(const char *clientIp) override {
-            mProtection->unlock(clientIp);
+        char *unlock(const char *clientIp) override {
+            return mProtection->unlock(clientIp);
         }
 
         void resetLockTimeout(void) override {
@@ -267,6 +267,10 @@ class app : public IApp, public ah::Scheduler {
             return mProtection->isProtected(clientIp);
         }
 
+        bool isProtected(const char *clientIp, const char *token) const override {
+            return mProtection->isProtected(clientIp, token);
+        }
+
         bool getNrfEnabled(void) override {
             return mConfig->nrf.enabled;
         }

src/appInterface.h

@@ -62,10 +62,11 @@ class IApp {
         virtual uint32_t getMqttTxCnt() = 0;
 
         virtual void lock(void) = 0;
-        virtual void unlock(const char *clientIp) = 0;
+        virtual char *unlock(const char *clientIp) = 0;
         virtual void resetLockTimeout(void) = 0;
         virtual bool isProtected(void) const = 0;
         virtual bool isProtected(const char *clientIp) const = 0;
+        virtual bool isProtected(const char *clientIp, const char *token) const = 0;
 
         virtual uint16_t getHistoryValue(uint8_t type, uint16_t i) = 0;
         virtual uint16_t getHistoryMaxDay() = 0;

src/defines.h

@@ -13,7 +13,7 @@
 //-------------------------------------
 #define VERSION_MAJOR       0
 #define VERSION_MINOR       8
-#define VERSION_PATCH       76
+#define VERSION_PATCH       77
 
 //-------------------------------------
 typedef struct {

src/web/Protection.h

@@ -19,6 +19,7 @@ class Protection {
             mPwd = pwd;
             mLogoutTimeout = 0;
             mLoginIp.fill(0);
+            mToken.fill(0);
 
             // no password set - unlock
             if(pwd[0] == '\0')
@@ -50,13 +51,17 @@ class Protection {
             mLoginIp.fill(0);
         }
 
-        void unlock(const char *clientIp) {
+        char *unlock(const char *clientIp) {
             mLogoutTimeout = LOGOUT_TIMEOUT;
             mProtected = false;
             ah::ip2Arr(static_cast<uint8_t*>(mLoginIp.data()), clientIp);
+            genToken();
+
+            return reinterpret_cast<char*>(mToken.data());
         }
 
         void resetLockTimeout(void) {
+            if(0 != mLogoutTimeout)
                 mLogoutTimeout = LOGOUT_TIMEOUT;
         }
 
@@ -64,6 +69,16 @@ class Protection {
             return mProtected;
         }
 
+        bool isProtected(const char *clientIp, const char *token) const {
+            if(isProtected(clientIp))
+                return true;
+
+            if(0 == mToken[0]) // token is zero
+                return true;
+
+            return (0 != strncmp(token, mToken.data(), 16));
+        }
+
         bool isProtected(const char *clientIp) const {
             if(mProtected)
                 return true;
@@ -81,14 +96,27 @@ class Protection {
             return false;
         }
 
+    private:
+        void genToken() {
+            mToken.fill(0);
+            for(uint8_t i = 0; i < 16; i++) {
+                mToken[i] = random(1, 35);
+                if(mToken[i] < 10)
+                    mToken[i] += 0x30; // convert to ascii number 1-9 (zero isn't allowed)
+                else
+                    mToken[i] += 0x37; // convert to ascii upper case character
+            }
+        }
+
     protected:
         static Protection *mInstance;
 
     private:
         const char *mPwd;
         bool mProtected = true;
-        uint16_t mLogoutTimeout = LOGOUT_TIMEOUT;
+        uint16_t mLogoutTimeout = 0;
         std::array<uint8_t, 4> mLoginIp;
+        std::array<char, 17> mToken;
 };
 
 #endif /*__PROTECTION_H__*/

src/web/RestApi.h

@@ -70,7 +70,7 @@ class RestApi {
             if(obj[F("path")] == "ctrl")
                 setCtrl(obj, dummy, "*");
             else if(obj[F("path")] == "setup")
-                setSetup(obj, dummy);
+                setSetup(obj, dummy, "*");
         }
 
     private:
@@ -169,7 +169,7 @@ class RestApi {
                 if(path == "ctrl")
                     root[F("success")] = setCtrl(obj, root, request->client()->remoteIP().toString().c_str());
                 else if(path == "setup")
-                    root[F("success")] = setSetup(obj, root);
+                    root[F("success")] = setSetup(obj, root, request->client()->remoteIP().toString().c_str());
                 else {
                     root[F("success")] = false;
                     root[F("error")]   = F(PATH_NOT_FOUND) + path;
@@ -831,6 +831,36 @@ class RestApi {
         }
 
         bool setCtrl(JsonObject jsonIn, JsonObject jsonOut, const char *clientIP) {
+            if(F("auth") == jsonIn[F("cmd")]) {
+                if(String(jsonIn["val"]) == String(mConfig->sys.adminPwd))
+                    jsonOut["token"] = mApp->unlock(clientIP);
+                else {
+                    jsonOut[F("error")] = F(AUTH_ERROR);
+                    return false;
+                }
+                return true;
+            }
+
+            /*if(mConfig->sys.adminPwd[0] != '\0') { // check if admin password is set
+                if(strncmp("*", clientIP, 1) != 0) { // no call from MqTT
+                    const char* token = jsonIn["token"];
+                    if(mApp->isProtected(clientIP, token)) {
+                        jsonOut[F("error")] = F(IS_PROTECTED);
+                        jsonOut[F("bla")] = String(token);
+                        return false;
+                    }
+                }
+            }*/
+
+            if(mConfig->sys.adminPwd[0] != '\0') { // check if admin password is set
+                if(strncmp("*", clientIP, 1) != 0) { // no call from MqTT
+                    if(mApp->isProtected(clientIP)) {
+                        jsonOut[F("error")] = F(IS_PROTECTED);
+                        return false;
+                    }
+                }
+            }
+
             Inverter<> *iv = mSys->getInverterByPos(jsonIn[F("id")]);
             bool accepted = true;
             if(NULL == iv) {
@@ -839,15 +869,6 @@ class RestApi {
             }
             jsonOut[F("id")] = jsonIn[F("id")];
 
-            if(mConfig->sys.adminPwd[0] != '\0') {
-                if(strncmp("*", clientIP, 1) != 0) { // no call from API (MqTT)
-                    if(mApp->isProtected(clientIP)) {
-                        jsonOut[F("error")] = F(INV_IS_PROTECTED);
-                        return false;
-                    }
-                }
-            }
-
             if(F("power") == jsonIn[F("cmd")])
                 accepted = iv->setDevControlRequest((jsonIn[F("val")] == 1) ? TurnOn : TurnOff);
             else if(F("restart") == jsonIn[F("cmd")])
@@ -882,7 +903,17 @@ class RestApi {
             return true;
         }
 
-        bool setSetup(JsonObject jsonIn, JsonObject jsonOut) {
+        bool setSetup(JsonObject jsonIn, JsonObject jsonOut, const char *clientIP) {
+            /*if(mConfig->sys.adminPwd[0] != '\0') { // check if admin password is set
+                if(strncmp("*", clientIP, 1) != 0) { // no call from MqTT
+                    const char* token = jsonIn["token"];
+                    if(mApp->isProtected(clientIP, token)) {
+                        jsonOut[F("error")] = F(IS_PROTECTED);
+                        return false;
+                    }
+                }
+            }*/
+
             #if !defined(ETHERNET)
             if(F("scan_wifi") == jsonIn[F("cmd")])
                 mApp->scanAvailNetworks();

src/web/lang.h

@@ -30,6 +30,12 @@
     #define INV_INDEX_INVALID "inverter index invalid: "
 #endif
 
+#ifdef LANG_DE
+    #define AUTH_ERROR "Authentifizierungsfehler"
+#else /*LANG_EN*/
+    #define AUTH_ERROR "authentication error"
+#endif
+
 #ifdef LANG_DE
     #define UNKNOWN_CMD "unbekanntes Kommando: '"
 #else /*LANG_EN*/
@@ -37,9 +43,9 @@
 #endif
 
 #ifdef LANG_DE
-    #define INV_IS_PROTECTED "nicht angemeldet, Kommando nicht möglich!"
+    #define IS_PROTECTED "nicht angemeldet, Kommando nicht möglich!"
 #else /*LANG_EN*/
-    #define INV_IS_PROTECTED "not logged in, command not possible!"
+    #define IS_PROTECTED "not logged in, command not possible!"
 #endif
 
 #ifdef LANG_DE

src/web/web.h

@@ -782,7 +782,7 @@ class Web {
                                             // report value
                                             if (0 == channel) {
                                                 // Report a _total value if also channel values were reported. Otherwise report without _total
-                                                char total[7];
+                                                char total[7] = {0};
                                                 if (metricDeclared) {
                                                     // A declaration and value for channels have been delivered. So declare and deliver a _total metric
                                                     snprintf(total, sizeof(total), "_total");