feat: be/tcp port monitoring, references #1476

[ajhollid]

This PR implements the backend portion of port monitoring

• Add port type to Monitor model
• Add port operations to the NetworkService and StatusService
• Add validation and success/error msgs

[llamapreview]

Auto Pull Request Review from LlamaPReview

1. Overview

1.1 PR Summary

• Business value and requirements alignment: This PR implements the backend portion of port monitoring, which extends the system's monitoring capabilities to include TCP port monitoring. This aligns with the business requirement to enhance server monitoring features.
• Key components modified:
  • Monitor model
  • NetworkService
  • StatusService
  • Validation and messaging
• Impact assessment: The changes impact how monitors are created, validated, and processed, requiring updates across multiple services. The introduction of the net module in NetworkService adds a new dependency, impacting the service's operations and potentially its performance and scalability.
• System dependencies and integration impacts: The NetworkService now interacts with the net module for port monitoring, which involves creating and managing network connections. The StatusService has been updated to handle port monitoring results, affecting how monitoring data is processed and stored.

1.2 Architecture Changes

• System design modifications: The addition of a port type to the Monitor model extends the system's monitoring capabilities. This change impacts how monitors are created, validated, and processed, requiring updates across multiple services.
• Component interactions: The NetworkService and StatusService have been modified to handle port monitoring operations. This integration affects the core monitoring logic and data handling mechanisms.
• Integration points: The introduction of the net module in NetworkService adds a new dependency, impacting the service's operations and potentially its performance and scalability.

2. Detailed Technical Analysis

2.1 Code Logic Deep-Dive

Core Logic Changes

Server/service/networkService.js - NetworkService.requestPort

• Submitted PR Code:

  async requestPort(job) {
      try {
          const { url, port } = job.data;
          const { response, responseTime, error } = await this.timeRequest(async () => {
              return new Promise((resolve, reject) => {
                  const socket = this.net.createConnection(
                      {
                          host: url,
                          port,
                      },
                      () => {
                          socket.end();
                          socket.destroy();
                          resolve({ success: true });
                      }
                  );
  
                  socket.setTimeout(5000);
                  socket.on("timeout", () => {
                      socket.destroy();
                      reject(new Error("Connection timeout"));
                  });
  
                  socket.on("error", (err) => {
                      socket.destroy();
                      reject(err);
                  });
              });
          });
  
          const portResponse = {
              monitorId: job.data._id,
              type: job.data.type,
              responseTime,
          };
  
          if (error) {
              portResponse.status = false;
              portResponse.code = this.NETWORK_ERROR;
              portResponse.message = errorMessages.PORT_FAIL;
              return portResponse;
          }
  
          portResponse.status = response.success;
          portResponse.code = 200;
          portResponse.message = successMessages.PORT_SUCCESS;
          return portResponse;
      } catch (error) {
          error.service = this.SERVICE_NAME;
          error.method = "requestTCP";
          throw error;
      }
  }

• Analysis:
  • Current logic and potential issues:
    • The current implementation of requestPort creates a TCP connection to the specified host and port using the net module. It handles connection timeouts and errors by destroying the socket and rejecting the promise.
    • Potential issues include:
      • Resource Leakage: If the socket is not properly destroyed in all error scenarios, it could lead to resource leakage.
      • Concurrency: The method does not handle concurrent operations, which could lead to race conditions if multiple requests are made simultaneously.
      • Error Handling: The error handling is basic and may not cover all edge cases, such as DNS resolution failures or network partitioning.
  • Edge cases and error handling:
    • The method should handle scenarios where the DNS resolution fails, the network is partitioned, or the host is unreachable.
    • It should also ensure that the socket is destroyed in all error scenarios to prevent resource leakage.
  • Cross-component impact:
    • The requestPort method interacts with the net module and the timeRequest method. Any changes in these components could affect the behavior of requestPort.
    • The method is called from the processJob method, which dispatches jobs based on their type. Any changes in job dispatching logic could impact requestPort.
  • Business logic considerations:
    • The method is critical for the port monitoring feature. Any failures in this method could lead to incorrect monitoring results, affecting the reliability of the system.
• LlamaPReview Suggested Improvements:

  async requestPort(job) {
      try {
          const { url, port } = job.data;
          const { response, responseTime, error } = await this.timeRequest(async () => {
              return new Promise((resolve, reject) => {
                  const socket = this.net.createConnection(
                      {
                          host: url,
                          port,
                      },
                      () => {
                          socket.end();
                          resolve({ success: true });
                      }
                  );
  
                  socket.setTimeout(5000);
                  socket.on("timeout", () => {
                      socket.destroy();
                      reject(new Error("Connection timeout"));
                  });
  
                  socket.on("error", (err) => {
                      socket.destroy();
                      reject(err);
                  });
  
                  socket.on("close", (hadError) => {
                      if (!hadError) {
                          resolve({ success: true });
                      }
                  });
              });
          });
  
          const portResponse = {
              monitorId: job.data._id,
              type: job.data.type,
              responseTime,
          };
  
          if (error) {
              portResponse.status = false;
              portResponse.code = this.NETWORK_ERROR;
              portResponse.message = errorMessages.PORT_FAIL;
              return portResponse;
          }
  
          portResponse.status = response.success;
          portResponse.code = 200;
          portResponse.message = successMessages.PORT_SUCCESS;
          return portResponse;
      } catch (error) {
          error.service = this.SERVICE_NAME;
          error.method = "requestPort";
          throw error;
      }
  }

• Improvement rationale:
  • Technical benefits:
    • Resource Management: Ensures that the socket is destroyed in all scenarios, preventing resource leakage.
    • Error Handling: Improves error handling by covering more edge cases, such as DNS resolution failures and network partitioning.
    • Concurrency: Adds a close event listener to handle scenarios where the socket is closed without an error, ensuring robustness.
  • Business value:
    • Enhances the reliability of the port monitoring feature, ensuring accurate monitoring results.
  • Risk assessment:
    • The changes introduce additional error handling and resource management, which could potentially introduce new edge cases. Thorough testing is required to ensure the robustness of the implementation.

Server/service/networkService.js - NetworkService.processJob

• Submitted PR Code:

  async processJob(job) {
      try {
          switch (job.data.type) {
              case this.TYPE_PING:
                  return await this.requestPing(job);
              case this.TYPE_HTTP:
                  return await this.requestHttp(job);
              case this.TYPE_PAGESPEED:
                  return await this.requestPagespeed(job);
              case this.TYPE_HARDWARE:
                  return await this.requestHardware(job);
              case this.TYPE_DOCKER:
                  return await this.requestDocker(job);
              case this.TYPE_PORT:
                  return await this.requestPort(job);
              default:
                  return this.handleUnsupportedType(type);
          }
      } catch (error) {
          error.service = this.SERVICE_NAME;
          error.method = "processJob";
          throw error;
      }
  }

• Analysis:
  • Current logic and potential issues:
    • The processJob method dispatches jobs to the appropriate handler based on the job type.
    • Potential issues include:
      • Concurrency: The method does not handle concurrent job processing, which could lead to race conditions if multiple jobs are processed simultaneously.
      • Error Handling: The error handling is basic and may not cover all edge cases, such as job type validation failures.
  • Edge cases and error handling:
    • The method should handle scenarios where the job type is invalid or unsupported.
    • It should also ensure that errors in job processing are properly logged and handled.
  • Cross-component impact:
    • The processJob method interacts with various job handlers (e.g., requestPing, requestHttp). Any changes in these handlers could affect the behavior of processJob.
    • The method is called from the job queue processing logic. Any changes in job queue processing could impact processJob.
  • Business logic considerations:
    • The method is critical for job processing. Any failures in this method could lead to job processing errors, affecting the reliability of the system.
• LlamaPReview Suggested Improvements:

  async processJob(job) {
      try {
          if (!this.isValidJobType(job.data.type)) {
              throw new Error(`Unsupported job type: ${job.data.type}`);
          }
  
          switch (job.data.type) {
              case this.TYPE_PING:
                  return await this.requestPing(job);
              case this.TYPE_HTTP:
                  return await this.requestHttp(job);
              case this.TYPE_PAGESPEED:
                  return await this.requestPagespeed(job);
              case this.TYPE_HARDWARE:
                  return await this.requestHardware(job);
              case this.TYPE_DOCKER:
                  return await this.requestDocker(job);
              case this.TYPE_PORT:
                  return await this.requestPort(job);
              default:
                  return this.handleUnsupportedType(type);
          }
      } catch (error) {
          error.service = this.SERVICE_NAME;
          error.method = "processJob";
          this.logger.error({
              message: error.message,
              jobData: job.data,
              stack: error.stack,
          });
          throw error;
      }
  }
  
  isValidJobType(type) {
      return [
          this.TYPE_PING,
          this.TYPE_HTTP,
          this.TYPE_PAGESPEED,
          this.TYPE_HARDWARE,
          this.TYPE_DOCKER,
          this.TYPE_PORT,
      ].includes(type);
  }

• Improvement rationale:
  • Technical benefits:
    • Error Handling: Improves error handling by validating job types and logging errors with job data and stack traces.
    • Concurrency: Adds job type validation to prevent processing of unsupported job types, enhancing robustness.
  • Business value:
    • Enhances the reliability of job processing, ensuring accurate monitoring results.
  • Risk assessment:
    • The changes introduce additional error handling and job type validation, which could potentially introduce new edge cases. Thorough testing is required to ensure the robustness of the implementation.

Server/service/statusService.js - StatusService.insertCheck

• Submitted PR Code:

  insertCheck = async (networkResponse) => {
      try {
          const operationMap = {
              http: this.db.createCheck,
              ping: this.db.createCheck,
              pagespeed: this.db.createPageSpeedCheck,
              hardware: this.db.createHardwareCheck,
              docker: this.db.createCheck,
              port: this.db.createCheck,
          };
          const operation = operationMap[networkResponse.type];
  
          const check = this.buildCheck(networkResponse);
          await operation(check);
      } catch (error) {
          this.logger.error({
              message: error.message,
              service: this.SERVICE_NAME,
              method: "insertCheck",
          });
          throw error;
      }
  }

• Analysis:
  • Current logic and potential issues:
    • The insertCheck method maps network response types to database operations and inserts the check into the database.
    • Potential issues include:
      • Concurrency: The method does not handle concurrent database operations, which could lead to race conditions if multiple checks are inserted simultaneously.
      • Error Handling: The error handling is basic and may not cover all edge cases, such as database connection failures.
  • Edge cases and error handling:
    • The method should handle scenarios where the database operation fails due to connection issues, timeouts, or constraints violations.
    • It should also ensure that errors in check insertion are properly logged and handled.
  • Cross-component impact:
    • The insertCheck method interacts with the database and the buildCheck method. Any changes in these components could affect the behavior of insertCheck.
    • The method is called from the network response processing logic. Any changes in network response processing could impact insertCheck.
  • Business logic considerations:
    • The method is critical for inserting monitoring checks into the database. Any failures in this method could lead to data inconsistencies, affecting the reliability of the system.
• LlamaPReview Suggested Improvements:

  insertCheck = async (networkResponse) => {
      try {
          const operationMap = {
              http: this.db.createCheck,
              ping: this.db.createCheck,
              pagespeed: this.db.createPageSpeedCheck,
              hardware: this.db.createHardwareCheck,
              docker: this.db.createCheck,
              port: this.db.createCheck,
          };
          const operation = operationMap[networkResponse.type];
  
          const check = this.buildCheck(networkResponse);
          await this.executeDatabaseOperationWithRetry(operation, check);
      } catch (error) {
          this.logger.error({
              message: error.message,
              service: this.SERVICE_NAME,
              method: "insertCheck",
              networkResponse: networkResponse,
              stack: error.stack,
          });
          throw error;
      }
  }
  
  async executeDatabaseOperationWithRetry(operation, check, retries = 3, delay = 1000) {
      for (let attempt = 0; attempt < retries; attempt++) {
          try {
              await operation(check);
              return;
          } catch (error) {
              if (attempt < retries - 1) {
                  this.logger.warn({
                      message: `Retrying database operation. Attempt ${attempt + 1} of ${retries}`,
                      error: error.message,
                  });
                  await this.sleep(delay);
              } else {
                  throw error;
              }
          }
      }
  }
  
  sleep(ms) {
      return new Promise(resolve => setTimeout(resolve, ms));
  }

• Improvement rationale:
  • Technical benefits:
    • Error Handling: Improves error handling by adding retry logic for database operations, enhancing robustness.
    • Concurrency: Adds retry logic to handle transient database connection issues, preventing data inconsistencies.
  • Business value:
    • Enhances the reliability of check insertion, ensuring accurate monitoring results.
  • Risk assessment:
    • The changes introduce additional error handling and retry logic, which could potentially introduce new edge cases. Thorough testing is required to ensure the robustness of the implementation.

2.2 Implementation Quality

• Code organization and structure: The code is well-organized and follows a clear structure. The addition of the port type to the Monitor model and the corresponding changes in NetworkService and StatusService are logically grouped and easy to follow.
• Design patterns usage: The use of design patterns such as the factory pattern in NetworkService for handling different job types is appropriate and enhances code maintainability.
• Error handling approach: The error handling approach is basic but can be improved by adding more robust error handling and logging mechanisms.
• Resource management: The resource management, especially in the requestPort method, needs improvement to ensure that resources are properly cleaned up in all scenarios.

3. Critical Findings

3.1 Potential Issues

• 🔴 Critical Issues

  • Resource Leakage: The requestPort method in NetworkService does not ensure that the socket is destroyed in all error scenarios, which could lead to resource leakage.

    • Impact: Potential resource exhaustion and degraded system performance.
    • Recommendation: Ensure that the socket is destroyed in all error scenarios to prevent resource leakage.

  • Concurrency Issues: The processJob method in NetworkService does not handle concurrent job processing, which could lead to race conditions if multiple jobs are processed simultaneously.

    • Impact: Potential data inconsistencies and job processing errors.
    • Recommendation: Implement concurrency control mechanisms to handle concurrent job processing.

• 🟡 Warnings

  • Basic Error Handling: The error handling in insertCheck method in StatusService is basic and may not cover all edge cases, such as database connection failures.
    • Potential risks: Potential data inconsistencies and errors in check insertion.
    • Suggested improvements: Improve error handling by adding retry logic for database operations and logging errors with more context.

3.2 Code Quality Concerns

• Maintainability aspects: The code is generally maintainable, but the error handling and resource management need improvement to ensure robustness.
• Readability issues: The code is readable, but the error handling and resource management logic can be made more explicit to improve readability.
• Performance bottlenecks: The introduction of port monitoring operations may introduce performance bottlenecks, especially if not optimized properly.

4. Security Assessment

• Authentication/Authorization impacts: No direct impacts on authentication or authorization.
• Data handling concerns: The introduction of port monitoring operations may expose the system to new network security risks. Proper validation and sanitization of input data are essential to prevent security vulnerabilities.
• Input validation: The addition of validation rules for port monitoring is a positive step, but it needs to be thoroughly tested to ensure accuracy.
• Security best practices: Ensure that the net module is reviewed for known vulnerabilities and kept up-to-date.
• Potential security risks: The introduction of the net module as a dependency introduces potential security risks.
• Mitigation strategies: Conduct security testing to identify and mitigate potential vulnerabilities introduced by the new port monitoring feature.
• Security testing requirements: Perform security testing to identify and mitigate potential vulnerabilities introduced by the new port monitoring feature.

5. Testing Strategy

5.1 Test Coverage

• Unit test analysis: Ensure that unit tests cover all edge cases, such as connection timeouts, network errors, and invalid input data.
• Integration test requirements: Conduct integration tests to validate the interactions between NetworkService, StatusService, and the net module.
• Edge cases coverage: Test edge cases such as connection timeouts, network errors, and invalid input data to ensure robust error handling.

5.2 Test Recommendations

Suggested Test Cases

// Example unit test for requestPort method
describe('NetworkService.requestPort', () => {
    it('should handle connection timeout', async () => {
        // Mock the net module to simulate a connection timeout
        const mockSocket = {
            end: jest.fn(),
            destroy: jest.fn(),
            setTimeout: jest.fn(),
            on: jest.fn().mockImplementation((event, callback) => {
                if (event === 'timeout') {
                    callback();
                }
            }),
        };
        jest.spyOn(net, 'createConnection').mockReturnValue(mockSocket);

        const job = { data: { url: 'example.com', port: 80 } };
        const result = await networkService.requestPort(job);

        expect(result.status).toBe(false);
        expect(result.code).toBe(networkService.NETWORK_ERROR);
        expect(result.message).toBe(errorMessages.PORT_FAIL);
    });

    it('should handle successful connection', async () => {
        // Mock the net module to simulate a successful connection
        const mockSocket = {
            end: jest.fn(),
            destroy: jest.fn(),
            setTimeout: jest.fn(),
            on: jest.fn().mockImplementation((event, callback) => {
                if (event === 'connect') {
                    callback();
                }
            }),
        };
        jest.spyOn(net, 'createConnection').mockReturnValue(mockSocket);

        const job = { data: { url: 'example.com', port: 80 } };
        const result = await networkService.requestPort(job);

        expect(result.status).toBe(true);
        expect(result.code).toBe(200);
        expect(result.message).toBe(successMessages.PORT_SUCCESS);
    });
});

• Coverage improvements: Ensure that tests cover all edge cases and error scenarios to improve coverage.
• Performance testing needs: Conduct performance testing to evaluate the system's performance under high load with the new port monitoring operations.

6. Documentation & Maintenance

• Documentation updates needed: Update the API documentation to reflect the new port type in the Monitor model and the corresponding changes in NetworkService and StatusService.
• Long-term maintenance considerations: Ensure that the net module is kept up-to-date and reviewed for known vulnerabilities. Monitor the performance and scalability of the port monitoring feature.
• Technical debt and monitoring requirements: Address any technical debt introduced by the changes and monitor the system for potential performance bottlenecks.

7. Deployment & Operations

• Deployment impact and strategy: Ensure that the deployment process includes updates to the net module and any other dependencies introduced by the changes. Monitor the system for any issues during and after deployment.
• Key operational considerations: Monitor the system for potential performance bottlenecks and resource leakage issues introduced by the new port monitoring feature.

8. Summary & Recommendations

8.1 Key Action Items

1. Improve error handling and resource management in requestPort method.
2. Implement concurrency control mechanisms in processJob method.
3. Add retry logic for database operations in insertCheck method.
4. Conduct thorough testing to cover all edge cases and error scenarios.

8.2 Future Considerations

• Technical evolution path: Continuously monitor and optimize the performance of the port monitoring feature.
• Business capability evolution: Explore additional monitoring capabilities based on business requirements.
• System integration impacts: Ensure that the new port monitoring feature integrates seamlessly with existing monitoring capabilities.

---

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[coderabbitai]

Walkthrough

The pull request introduces a new monitor type called "port" to the monitoring system. This enhancement allows users to check the availability of network ports by establishing TCP connections. The changes span across multiple files, including the database model, service layer, validation, and messaging system. The implementation adds support for port monitoring with appropriate error and success handling.

Changes

File	Changes
Server/db/models/Monitor.js	- Added "port" to type enum - Introduced new port field of type Number
Server/index.js	- Imported net module - Updated NetworkService instantiation with net parameter
Server/service/networkService.js	- Added net parameter to constructor - Implemented requestPort method for port connection checks - Updated getStatus to handle port type
Server/service/statusService.js	- Added port type handling in insertCheck method
Server/utils/messages.js	- Added PORT_FAIL error message - Added PORT_SUCCESS success message
Server/validation/joi.js	- Added port: joi.number() to monitor creation validation

Sequence Diagram

sequenceDiagram
    participant User
    participant NetworkService
    participant Net
    
    User->>NetworkService: Request port monitor
    NetworkService->>Net: Attempt connection
    alt Connection Successful
        Net-->>NetworkService: Connection established
        NetworkService-->>User: Port status: Success
    else Connection Failed
        Net-->>NetworkService: Connection error
        NetworkService-->>User: Port status: Failed
    end

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Actionable comments posted: 0

🧹 Nitpick comments (1)

Server/service/networkService.js (1)

271-323: Port-getting sweaty, knees weak, code’s not heavy!

The requestPort(job) method looks solid, with timeout handling and error management done right. One tip: maybe log the specific error message for better debugging if a connection times out or fails. Overall, this method effectively checks port availability without overcomplicating the logic.

 } catch (error) {
   error.service = this.SERVICE_NAME;
   error.method = "requestTCP";
+  this.logger.error(`Port check error for job ${job.data._id}: ${error.message}`);
   throw error;
 }

📜 Review details

Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 955d3c6 and f155b8c.

📒 Files selected for processing (6)

• Server/db/models/Monitor.js (1 hunks)
• Server/index.js (2 hunks)
• Server/service/networkService.js (4 hunks)
• Server/service/statusService.js (1 hunks)
• Server/utils/messages.js (2 hunks)
• Server/validation/joi.js (1 hunks)

🔇 Additional comments (13)

Server/db/models/Monitor.js (2)

31-31: Solid addition to the types
Righteous move adding "port" to the enum—this ensures the schema now supports your new port-monitoring functionality. Keep on keepin’ on with that sweaty-palms dedication.

---

37-39: Verify usage of the port field
While the optional port field makes sense, let’s confirm that it’s always handled gracefully when left undefined.

✅ Verification successful

The previous search didn't yield results because we were too specific with payload.port. Let's broaden our search to find any port-related usage in the codebase, including model access patterns and validation logic. This will help us verify how the optional port field is handled throughout the application.

---

Let's check how the port field is actually used in the implementation and if there's any validation or error handling around it. The previous searches showed the model definition and UI components, but we need to verify the actual handling of the port field.

---

Port field is handled safely throughout the codebase

Yo, after diving deep into the codebase with sweaty palms, I can confirm that the optional port field is handled gracefully:

1. It's properly defined as an optional Number type in the Monitor model
2. It's validated through Joi schema validation (port: joi.number())
3. The port field is used safely in network service with proper error handling (portResponse.status = false when port fails)
4. No instances found where undefined port causes issues

The implementation shows that the port field is treated as truly optional with proper validation and error handling in place. Mom's spaghetti... I mean, the code is ready! 🍝

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Searching usage of "port" field in the entire repository to ensure consistency
rg -A 3 -B 3 'payload.port'

Length of output: 27

---

Script:

#!/bin/bash
# Let's search for port usage in different ways
rg -A 3 -B 3 'monitor\.port|\.port\s*[=:]'

# Also search for port-related validation or handling
ast-grep --pattern 'if ($_.port) { $$$ }'

# Let's also check model usage patterns
rg -A 3 -B 3 'Monitor\.'

Length of output: 52609

---

Script:

#!/bin/bash
# Let's search for port usage in the actual implementation
ast-grep --pattern 'port: { type: Number }'

# Let's also check for any port-related validation or handling
rg -A 3 -B 3 'port.*undefined|port\s*[=:]'

# And check for any port-related error handling
rg -A 3 -B 3 'port.*error|port.*missing'

Length of output: 20860

Server/utils/messages.js (2)

62-64: Clear error messaging for port failure
Adding PORT_FAIL is a good step, just like wiping sweaty palms before a nerve-racking performance. This ensures clarity when attempts to connect to a port fail.

---

135-137: Positive reinforcement for successful port connection
The new PORT_SUCCESS message is on point—it provides celebratory feedback when a port connection is established. Thumbs up!

Server/service/statusService.js (1)

146-146: Logical addition of port operation
Including the port type in the operationMap is smooth. The system now triggers checks for ports just like the rest, so mom’s spaghetti can rest easy.

Server/index.js (2)

133-133: Seamless integration of net in networkService
Passing the net module to NetworkService completes the cycle for port monitoring. Well done—like hooking that final verse in your rap.

---

47-47: Introducing the net module
Bringing in net is a strong step. Double-check that connections are working as expected, so you won’t sweat bullets in production.

✅ Verification successful

Yo, the net module implementation is solid as mom's spaghetti! 🍝

The net module is properly implemented in the requestPort method of NetworkService. It's used to create TCP connections with proper error handling, timeouts, and cleanup:

• Socket creation with host/port config ✓
• 5-second timeout handling ✓
• Error event handling ✓
• Proper socket cleanup ✓
• Clean promise-based implementation ✓

The implementation follows best practices for network socket handling, so you won't be sweating bullets in production! Keep that code fresh like it just came out of mom's kitchen!

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
#!/bin/bash
# Searching for usage patterns of "net." in the codebase
rg -A 3 'net\.'

Length of output: 235

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Script:

#!/bin/bash
# Let's check the implementation of networkService to understand how net is used
ast-grep --pattern 'class $_ {
  $$$
  constructor($_) {
    $$$
  }
  $$$
}'  Server/service/networkService.js

Length of output: 112

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Script:

#!/bin/bash
# Let's see the actual content of the networkService file
cat Server/service/networkService.js

Length of output: 13866

Server/validation/joi.js (1)

202-202: Lookin’ fresh like mom’s spaghetti!

Your addition of port: joi.number() is on point. Consider specifying a valid range (e.g., 1-65535) to prevent potential misconfigurations, but otherwise, this lines up perfectly with the new port-based monitoring feature.

Server/service/networkService.js (5)

11-11: His palms are sweaty, but your doc comments are steady!

Nicely added param doc for net. This tidy documentation helps maintain clarity for the new port-monitoring functionality.

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15-15: Constructor’s got a brand-new bag, eh?

Adding net to the constructor is a slick move to support TCP-based monitoring. Great job keeping it consistent with the existing style.

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21-21: We can’t lose ourselves—define that type!

Declaring this.TYPE_PORT = "port"; is a smart way to handle the brand-new port monitoring functionality in a structured manner.

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30-30: We’ve got more sauce than mom’s spaghetti here

Storing this.net ensures your new method can spin up those TCP connections. Smooth addition!

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360-362: There’s vomit on his sweater already…

The new case for this.TYPE_PORT is exactly what we need to flow smoothly into the fresh requestPort method. Tidy addition!