fixed a lot of bugs and optimized code in cgminer handler

miners/bosminer.py

@@ -10,20 +10,22 @@ class BOSminer(BaseMiner):
         api = BOSMinerAPI(ip)
         super().__init__(ip, api)
         self.config = None
+        self.uname = 'root'
+        self.pwd = 'admin'
 
     def __repr__(self) -> str:
         return f"BOSminer: {str(self.ip)}"
 
-    async def get_ssh_connection(self, username: str, password: str) -> asyncssh.connect:
+    async def _get_ssh_connection(self) -> asyncssh.connect:
         """Create a new asyncssh connection"""
-        conn = await asyncssh.connect(str(self.ip), known_hosts=None, username=username, password=password,
+        conn = await asyncssh.connect(str(self.ip), known_hosts=None, username=self.uname, password=self.pwd,
                                       server_host_key_algs=['ssh-rsa'])
         # return created connection
         return conn
 
     async def send_ssh_command(self, cmd: str) -> None:
         result = None
-        conn = await self.get_ssh_connection('root', 'admin')
+        async with self._get_ssh_connection() as conn:
             for i in range(3):
                 try:
                     result = await conn.run(cmd)

miners/cgminer.py

@@ -17,7 +17,7 @@ class CGMiner(BaseMiner):
     async def send_config(self):
         return None  # ignore for now
 
-    async def get_ssh_connection(self) -> asyncssh.connect:
+    async def _get_ssh_connection(self) -> asyncssh.connect:
         conn = await asyncssh.connect(str(self.ip),
                                       known_hosts=None,
                                       username=self.uname,
@@ -25,7 +25,31 @@ class CGMiner(BaseMiner):
                                       server_host_key_algs=['ssh-rsa'])
         return conn
 
-    async def result_handler(self, result: asyncssh.process.SSHCompletedProcess) -> None:
+    async def send_ssh_command(self, cmd):
+        result = None
+        async with self._get_ssh_connection() as conn:
+            for i in range(3):
+                try:
+                    result = await conn.run(cmd)
+                except Exception as e:
+                    print(f"{cmd} error: {e}")
+                    if i == 3:
+                        return
+                    continue
+        # handle result
+        self._result_handler(result)
+        if result is not None:
+            if result.stdout != "":
+                print(result.stdout)
+                if result.stderr != "":
+                    print("ERROR: " + result.stderr)
+            elif result.stderr != "":
+                print("ERROR: " + result.stderr)
+            else:
+                print(cmd)
+
+    @staticmethod
+    def _result_handler(result: asyncssh.process.SSHCompletedProcess) -> None:
         if result is not None:
             if len(result.stdout) > 0:
                 print("ssh stdout: \n" + result.stdout)
@@ -33,53 +57,38 @@ class CGMiner(BaseMiner):
                 print("ssh stderr: \n" + result.stderrr)
             if len(result.stdout) <= 0 and len(result.stderr) <= 0:
                 print("ssh stdout stderr empty")
-        return None
 
     async def restart_cgminer(self) -> None:
-        async with get_ssh_connection() as conn:
         commands = ['cgminer-api restart',
                     '/usr/bin/cgminer-monitor >/dev/null 2>&1']
         commands = ';'.join(commands)
-            result = await conn.run(commands, check=True)
-            result_handler(result)
-        return None
+        await self.send_ssh_command(commands)
 
     async def reboot(self) -> None:
-        async with get_ssh_connection() conn:
         commands = ['reboot']
         commands = ';'.join(commands)
-            result = await conn.run(commands, check=True)
-            result_handler(result)
-        return None
+        await self.send_ssh_command(commands)
 
     async def start_cgminer(self) -> None:
-        async with get_ssh_connection() conn:
         commands = ['mkdir -p /etc/tmp/',
                     'echo \"*/3 * * * * /usr/bin/cgminer-monitor\" > /etc/tmp/root',
                     'crontab -u root /etc/tmp/root',
                     '/usr/bin/cgminer-monitor >/dev/null 2>&1']
         commands = ';'.join(commands)
-            result = await conn.run(commands, check=True)
-            result_handler(result)
-        return None
+        await self.send_ssh_command(commands)
 
     async def stop_cgminer(self) -> None:
-        async with get_ssh_connection() conn:
         commands = ['mkdir -p /etc/tmp/',
                     'echo \"\" > /etc/tmp/root',
                     'crontab -u root /etc/tmp/root',
                     'killall cgminer']
         commands = ';'.join(commands)
-            result = await conn.run(commands, check=True)
-            result_handler(result)
-        return None
+        await self.send_ssh_command(commands)
 
     async def get_config(self) -> None:
-        async with get_ssh_connection() as conn:
-            commands = ['cat /etc/config/cgminer']
-            commands = ';'.join(commands)
-            result = await conn.run(commands, check=True)
-            result_handler(result)
+        async with self._get_ssh_connection() as conn:
+            command = 'cat /etc/config/cgminer'
+            result = await conn.run(command, check=True)
+            self._result_handler(result)
             self.config = result.stdout
             print(str(self.config))
-        return None