25.4.1

main.py

@@ -0,0 +1,111 @@
+import paramiko
+from PIL import Image, ImageDraw, ImageFont
+import textwrap
+from queue import Queue
+import threading
+import time
+
+
+class SSHMonitor:
+    def __init__(self, host, port, user, password, n_history=10):
+        self.host = host
+        self.port = port
+        self.user = user
+        self.password = password
+        self.history = []
+        self.n_history = n_history
+        self._init_ssh()
+        self._response_queue = Queue()
+        self.font = ImageFont.load_default()
+
+    def _init_ssh(self):
+        self.client = paramiko.SSHClient()
+        self.client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+        self.client.connect(self.host, self.port, self.user, self.password)
+
+        self.channel = self.client.invoke_shell()
+        self.channel.settimeout(0.1)
+
+        # 读取欢迎信息
+        time.sleep(1)
+        self._read_output()
+
+    def _read_output(self):
+        output = b''
+        while self.channel.recv_ready():
+            output += self.channel.recv(1024)
+        return output.decode('utf-8', 'ignore')
+
+    def run_interactive(self):
+        def output_reader():
+            while True:
+                try:
+                    output = self._read_output()
+                    if output:
+                        self._response_queue.put(output)
+                except:
+                    break
+
+        reader_thread = threading.Thread(target=output_reader)
+        reader_thread.daemon = True
+        reader_thread.start()
+
+        try:
+            while True:
+                command = input("$ ")
+                if command.startswith("capture"):
+                    n = int(command.split()[1])
+                    self.save_history_to_image(n)
+                    continue
+
+                self.channel.send(command + "\n")
+                time.sleep(1)  # 等待命令执行
+                output = self._response_queue.get()
+
+                # 记录历史
+                self.history.append({
+                    'command': command,
+                    'output': output.strip()
+                })
+                if len(self.history) > self.n_history:
+                    self.history.pop(0)
+
+        except KeyboardInterrupt:
+            self.client.close()
+
+    def save_history_to_image(self, n):
+        if n > len(self.history):
+            n = len(self.history)
+
+        lines = []
+        for entry in self.history[-n:]:
+            lines.append(f"$ {entry['command']}")
+            lines.append(entry['output'])
+            lines.append("-" * 40)
+
+        text = "\n".join(lines)
+
+        # 创建图像
+        img = Image.new('RGB', (800, 600), color=(255, 255, 255))
+        d = ImageDraw.Draw(img)
+        margin = 10
+        x = margin
+        y = margin
+
+        for line in textwrap.wrap(text, width=100):
+            d.text((x, y), line, font=self.font, fill=(0, 0, 0))
+            y += 15
+
+        img.save(f'ssh_history_{time.time()}.png')
+
+
+if __name__ == "__main__":
+    # 配置SSH连接信息
+    monitor = SSHMonitor(
+        host='your_host',
+        port=22,
+        user='your_user',
+        password='your_password'
+    )
+
+    monitor.run_interactive()

第六周/作业二.py

@@ -5,4 +5,4 @@ params={
     'wd':'Python教程'
 }
 request = requests.get(url, params=params)
-print(request.text)
+print(request)