Hardcoded Mobius Saudi Arabia URL #4058
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📝 WalkthroughWalkthroughThe pull request modifies the Changes
Sequence DiagramsequenceDiagram
participant Client
participant Registration
participant MobiusServer
Client->>Registration: Initiate Registration
Registration->>MobiusServer: Connect to Hardcoded URL
MobiusServer-->>Registration: Process Registration
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Actionable comments posted: 2
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packages/calling/src/CallingClient/calling/call.ts(1 hunks)packages/calling/src/CallingClient/registration/register.ts(2 hunks)
✅ Files skipped from review due to trivial changes (1)
- packages/calling/src/CallingClient/calling/call.ts
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♻️ Duplicate comments (2)
packages/calling/src/CallingClient/registration/register.ts (2)
121-121:⚠️ Potential issueCritical: Hardcoding URL breaks configuration flexibility and method contract.
The hardcoded URL in
setActiveMobiusUrlintroduces several issues:
- Ignores the input parameter, breaking the method's contract
- Removes configuration flexibility for different environments
- Embeds sensitive production URL directly in code
Consider using environment variables or configuration:
- url="/https://mobius.asydwxt-prd-1.prod.infra.webex.com/api/v1/calling/web/"; + // Use the provided URL or fall back to environment variable + url = url || process.env.MOBIUS_URL;
616-616:⚠️ Potential issueCritical: Hardcoding server array disables failover mechanism.
Overriding the servers array with a single hardcoded URL:
- Disables the primary/backup server mechanism
- Removes failover capabilities
- Significantly impacts service reliability during outages
- Embeds sensitive production URL directly in code
Consider maintaining failover capability:
- servers = ["https://mobius.asydwxt-prd-1.prod.infra.webex.com/api/v1/calling/web/"]; + // If specific region is required, consider adding it to the existing servers list + if (process.env.MOBIUS_REGION === 'SA') { + servers.unshift(process.env.MOBIUS_URL); + }
🧹 Nitpick comments (1)
packages/calling/src/CallingClient/registration/register.ts (1)
121-121: Architecture: Consider implementing a configuration service.To address the broader architectural concerns with URL management:
- Create a dedicated configuration service to manage URLs
- Support different environments (dev, staging, prod)
- Enable region-specific routing
- Maintain failover capabilities
- Keep sensitive URLs out of code
Would you like me to provide a detailed design for implementing a configuration service?
Also applies to: 616-616
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📒 Files selected for processing (2)
packages/calling/src/CallingClient/calling/call.ts(1 hunks)packages/calling/src/CallingClient/registration/register.ts(2 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
- packages/calling/src/CallingClient/calling/call.ts
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♻️ Duplicate comments (1)
packages/calling/src/CallingClient/registration/register.ts (1)
616-616:⚠️ Potential issueCritical: Disabling server failover mechanism compromises service reliability.
Overriding the servers array with a single hardcoded URL:
- Disables the primary/backup server mechanism
- Removes failover capabilities
- Creates a single point of failure
- Could impact service availability during outages
Consider maintaining the existing failover capability:
- servers = ["https://mobius.asydwxt-prd-3.a1.prod.infra.webex.com/api/v1/calling/web/"]; + // Use the servers array passed to the method + for (const url of servers) {
🧹 Nitpick comments (1)
packages/calling/src/CallingClient/registration/register.ts (1)
121-121: Architectural Concern: Maintain distributed system reliability patterns.The current implementation includes sophisticated failover mechanisms that are being bypassed:
- Primary/backup server architecture for high availability
- Intelligent retry logic with exponential backoff
- Registration restoration capabilities
- Keepalive monitoring with automatic failover
Hardcoding a single URL compromises these reliability patterns. Instead:
- Maintain the existing server discovery mechanism
- Use configuration management for URLs
- Preserve the failover capabilities
- Consider implementing region-aware server selection if needed
If specific region routing is required, consider:
- Adding region configuration to the existing server discovery mechanism
- Implementing region-aware server selection logic
- Maintaining backup servers within the same region
- Preserving cross-region failover capabilities for disaster recovery
Also applies to: 616-616
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📒 Files selected for processing (2)
packages/calling/src/CallingClient/calling/call.ts(1 hunks)packages/calling/src/CallingClient/registration/register.ts(2 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
- packages/calling/src/CallingClient/calling/call.ts
🔇 Additional comments (1)
packages/calling/src/CallingClient/registration/register.ts (1)
121-121:⚠️ Potential issueCritical: Hardcoding the Mobius URL compromises reliability and configuration flexibility.
The hardcoded URL raises several concerns:
- Removes ability to configure URLs for different environments
- Makes it difficult to update URLs without code changes
- Violates separation of configuration from code
- May impact FedRAMP compliance requirements
Consider using environment variables or configuration:
- url="/https://mobius.asydwxt-prd-3.a1.prod.infra.webex.com/api/v1/calling/web/"; + // Use the URL passed to the method + log.info(`ActiveMobiusUrl: ${url}`, {method: 'setActiveMobiusUrl', file: REGISTRATION_FILE});Likely invalid or redundant comment.
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🧹 Nitpick comments (1)
packages/calling/src/CallingClient/registration/register.ts (1)
121-121: Architecture: Consider implementing a region-aware URL resolver.Instead of hardcoding URLs, consider implementing a more robust solution:
- Create a URL resolver service that maps regions to appropriate Mobius URLs
- Support configuration through environment variables or service discovery
- Maintain failover capabilities while respecting regional preferences
Would you like me to help design a more robust region-aware URL resolution mechanism that preserves the failover capabilities?
Also applies to: 616-616
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📒 Files selected for processing (2)
packages/calling/src/CallingClient/calling/call.ts(1 hunks)packages/calling/src/CallingClient/registration/register.ts(2 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
- packages/calling/src/CallingClient/calling/call.ts
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🔇 Additional comments (2)
packages/calling/src/CallingClient/registration/register.ts (2)
121-121:⚠️ Potential issueCritical: Hardcoding URL bypasses configuration and introduces security risks.
The hardcoded URL in
setActiveMobiusUrlraises several concerns:
- Removes configuration flexibility for different environments (dev, staging, prod)
- Exposes sensitive production URLs in code
- Makes the code less maintainable and harder to update
Consider using environment variables or configuration:
- url="/https://mobius.acmhwxt-prd-1.prod.infra.webex.com/api/v1/calling/web/"; + url = process.env.MOBIUS_URL || url;Likely invalid or redundant comment.
616-616:⚠️ Potential issueCritical: Disabling failover mechanism compromises reliability.
Overriding the
serversarray with a single hardcoded URL:
- Disables the primary/backup server mechanism
- Removes failover capabilities
- Could impact service reliability during outages
Consider maintaining failover capability:
- servers = ["https://mobius.acmhwxt-prd-1.prod.infra.webex.com/api/v1/calling/web/"]; + // If specific region is required, consider adding it to the existing servers list + if (process.env.MOBIUS_REGION === 'SA') { + servers.unshift(process.env.MOBIUS_URL); + }Likely invalid or redundant comment.
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Actionable comments posted: 0
🧹 Nitpick comments (1)
packages/calling/src/CallingClient/registration/register.ts (1)
121-121: Architecture: Consider implementing a region-aware configuration system.Instead of hardcoding URLs, consider implementing a more robust solution:
- Create a configuration system that maps regions to their Mobius URLs
- Allow region selection through environment variables
- Maintain failover capability within each region
Example configuration approach:
interface RegionConfig { primary: string[]; backup: string[]; } const REGION_CONFIGS: Record<string, RegionConfig> = { SA: { primary: ['https://mobius.afrawxt-prd-1.prod.infra.webex.com/api/v1/calling/web/'], backup: ['https://mobius-backup.afrawxt-prd-1.prod.infra.webex.com/api/v1/calling/web/'] } // Add other regions... };Also applies to: 616-616
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📒 Files selected for processing (2)
packages/calling/src/CallingClient/calling/call.ts(1 hunks)packages/calling/src/CallingClient/registration/register.ts(2 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
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🔇 Additional comments (2)
packages/calling/src/CallingClient/registration/register.ts (2)
616-616:⚠️ Potential issueCritical: Hardcoding server list disables failover mechanism.
Overriding the servers array with a single hardcoded URL:
- Disables the primary/backup server mechanism
- Removes failover capabilities
- Could impact service reliability during outages
Consider maintaining failover capability:
- servers = ["https://mobius.afrawxt-prd-1.prod.infra.webex.com/api/v1/calling/web/"]; + // If specific region is required, consider adding it to the existing servers list + if (process.env.MOBIUS_REGION === 'SA') { + servers.unshift(process.env.MOBIUS_URL); + }Likely invalid or redundant comment.
121-121:⚠️ Potential issueCritical: Hardcoded URL breaks method contract and configuration flexibility.
The method ignores its input parameter and always uses a hardcoded URL, which:
- Makes the
urlparameter redundant- Removes environment/region configuration flexibility
- Could cause issues if the URL needs to change
Consider using configuration instead:
- url="/https://mobius.afrawxt-prd-1.prod.infra.webex.com/api/v1/calling/web/"; + // Use environment variable with fallback to parameter + url = process.env.MOBIUS_URL || url;Likely invalid or redundant comment.
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Actionable comments posted: 1
🔭 Outside diff range comments (1)
packages/calling/src/CallingClient/registration/register.ts (1)
112-114: 💡 Verification agent🧩 Analysis chain
Critical: Failover capability is implemented but rendered ineffective.
The class has a sophisticated failover mechanism for handling server failures with primary and backup server lists, retry logic, and fallback strategies. The hardcoded URL changes completely bypass this entire system.
Key impacts:
- Lines 112-114 initialize primary and backup URI lists that are never effectively used
- Lines 127-130 provide a method to set server lists that will be overridden
- Lines 294-322 contain complex failover logic that becomes unreachable due to hardcoded URLs
This creates a significant reliability risk for the system, especially during regional outages or maintenance.
Also applies to: 127-130, 294-322
🏁 Script executed:
#!/bin/bash # Check how failover is used in the wider system echo "Finding references to primaryMobiusUris and backupMobiusUris:" rg "primaryMobiusUris|backupMobiusUris" --glob '*.{ts,js}' echo -e "\nChecking how setMobiusServers is called:" rg -A 5 "setMobiusServers" --glob '*.{ts,js}'Length of output: 65744
Critical: Failover mechanism bypassed by hardcoded URL assignment.
Our review and verification indicate that although the registration module initializes
primaryMobiusUrisandbackupMobiusUris(and provides a setter viasetMobiusServersas seen in lines 127–130) and contains complex failover logic (lines 294–322), these failover paths are effectively rendered inactive. InCallingClient.ts, for example, the code directly assigns a hardcoded primary URL (constructed frommobiusHostand a fixed endpoint) toprimaryMobiusUris. This hardcoded value overrides any dynamic configuration set by user code and bypasses the intended retry and fallback strategies, posing a significant reliability risk during regional outages or maintenance.
- Verify: The assignment in
packages/calling/src/CallingClient/CallingClient.tshardcodes the primary URI (e.g.,this.primaryMobiusUris = [\${this.mobiusHost}${URL_ENDPOINT}`]), making the dynamic failover (including thesetMobiusServers` setter) unused.- Impact: This design negates the sophisticated failover and server list management implemented in the registration module, potentially leaving the system vulnerable in critical situations.
Please rework the URL assignment logic so that it respects the dynamic configuration (or clean up any redundant hardcoded logic) to fully utilize the failover capabilities.
♻️ Duplicate comments (1)
packages/calling/src/CallingClient/registration/register.ts (1)
616-616:⚠️ Potential issueCritical: Hardcoded server list breaks failover mechanism and reduces system reliability.
This change completely disables the sophisticated failover mechanism implemented in this class by:
- Overriding the servers parameter with a hardcoded array containing only one URL
- Eliminating the ability to try backup servers when primary servers fail
- Removing regional flexibility needed for global deployments
The original implementation allowed failover between primary and backup servers with retry logic, which is essential for reliability in distributed systems.
Instead of hardcoding the URL, consider using environment configuration:
- servers = ["https://mobius-ap-southeast-2.a1.prod.infra.webex.com/api/v1/calling/web/"]; + // If specific region is required, maintain the failover capability + if (process.env.MOBIUS_REGION === 'ap-southeast-2') { + // Prioritize specific server but keep others as backup + servers = [process.env.MOBIUS_URL || "https://mobius-ap-southeast-2.a1.prod.infra.webex.com/api/v1/calling/web/", ...servers]; + }
🧹 Nitpick comments (1)
packages/calling/src/CallingClient/registration/register.ts (1)
617-692:❓ Verification inconclusive
Affected code path: Registration process now uses only a single server.
The registration process now only attempts to register with a single hardcoded server URL instead of trying multiple servers. While the existing logic for handling registration errors remains intact, it will only be tested against this one server.
This change particularly impacts the system's ability to handle temporary server outages, as seen in:
- The error handling logic remains robust (lines 647-691)
- However, the loop only has one URL to process, eliminating the benefits of the iteration
The change has effectively converted a multi-server resilient system to a single-point-of-failure architecture.
🏁 Script executed:
#!/bin/bash # Check the impact on calling client registration behavior echo "Searching for how registration with multiple servers is typically used:" ast-grep --pattern 'attemptRegistrationWithServers($method, $servers)'Length of output: 225
Single-Server Registration Reduces Failover Robustness
The updated registration code in
packages/calling/src/CallingClient/registration/register.ts(lines 617–692) now iterates over a servers array that appears to contain only a single hardcoded URL. Although the error handling inside the loop remains robust (e.g., restarting keepalive and scheduling retries on specific errors), the intended benefit of having multiple fallback servers is effectively lost. This creates a single point-of-failure for the registration process.
- The for-loop is retained but now only handles one URL.
- Robust error handling is maintained, yet its impact is limited by the absence of multiple endpoints.
- Please verify if this architectural change is intentional. If not, consider reintroducing a mechanism for multiple server endpoints to improve resilience against temporary outages.
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📒 Files selected for processing (2)
packages/calling/src/CallingClient/calling/call.ts(1 hunks)packages/calling/src/CallingClient/registration/register.ts(2 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
- packages/calling/src/CallingClient/calling/call.ts
⏰ Context from checks skipped due to timeout of 90000ms (1)
- GitHub Check: AWS Amplify Console Web Preview
🔇 Additional comments (2)
packages/calling/src/CallingClient/registration/register.ts (2)
120-124: Inconsistent URL region between PR title and implementation.The PR title mentions "Hardcoded Mobius Saudi Arabia URL," but the hardcoded URL points to the "ap-southeast-2" region (Australia). This inconsistency raises questions about whether this implementation actually fulfills the intended requirement.
Additionally, the PR objectives mention FedRAMP compliance, but there's no clear indication of how hardcoding a specific regional URL addresses compliance requirements.
What is FedRAMP compliance for cloud services?Also applies to: 616-616
Likely an incorrect or invalid review comment.
120-124:❓ Verification inconclusive
Critical: Hardcoded URL overrides parameter, removing configuration flexibility.
The change forcibly sets the Mobius URL to a fixed value, ignoring any URL passed as a parameter to this method. This eliminates the ability to:
- Configure different URLs for different environments
- Support regional deployments
- Enable proper testing with mock servers
This also creates inconsistency as the PR title mentions "Saudi Arabia URL" but the hardcoded URL points to "ap-southeast-2" (Australia region).
🏁 Script executed:
#!/bin/bash # Find all places where setActiveMobiusUrl is called to understand impact echo "Finding all calls to setActiveMobiusUrl method:" rg -A 2 "setActiveMobiusUrl" --glob '*.{ts,js}' echo -e "\nChecking if this URL is used elsewhere in the codebase:" rg "mobius-ap-southeast-2.a1.prod.infra.webex.com" --glob '*.{ts,js,json}'Length of output: 65718
Action Required: Revisit the Use of a Hardcoded Mobius URL
The current implementation in
packages/calling/src/CallingClient/registration/register.tsforcefully replaces the method’s input parameter with the hardcoded URL"https://mobius-ap-southeast-2.a1.prod.infra.webex.com/api/v1/calling/web/". This change removes the ability to:• Configure different URLs for various environments
• Support regional deployments (e.g., the PR title indicates “Saudi Arabia URL” yet the hardcoded URL is from the Australia region)
• Enable testing scenarios using mock serversPlease review and confirm if the intent was to permanently lock the URL. Ideally, the method should use the passed URL value (or derive it from a configurable source) instead of overriding it. I recommend verifying if other parts of the codebase expect this setter to be flexible before finalizing any changes.
| @@ -118,6 +118,7 @@ export class Registration implements IRegistration { | |||
| } | |||
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| public setActiveMobiusUrl(url: string) { | |||
| url = "https://mobius-ap-southeast-2.a1.prod.infra.webex.com/api/v1/calling/web/"; | |||
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💡 Verification agent
🧩 Analysis chain
Security consideration: Sensitive URLs should not be hardcoded in source code.
Hardcoding environment-specific URLs directly in source code:
- Makes it impossible to change the URL without a code release
- Potentially exposes information about internal infrastructure
- Combines configuration with code, violating separation of concerns
- Complicates FedRAMP compliance, which typically requires configurability
Consider using configuration settings or environment variables instead of hardcoding the URL.
Also applies to: 616-616
🌐 Web query:
What are best practices for handling URLs in FedRAMP compliant applications?
💡 Result:
FedRAMP-compliant applications require stringent URL handling practices to meet federal security standards. Here are key best practices derived from FedRAMP guidelines and cloud provider implementations:
URL Filtering and Threat Prevention
- Block high-risk categories: Use URL filtering tools to block access to malicious or inappropriate sites (e.g., phishing, malware, adult content)[3][6].
- Enforce SSL decryption: Decrypt traffic for enhanced visibility into URL activity[3][6].
- Strict threat profiles: Block downloads from untrusted sources and implement web application firewalls (e.g., Cloud Armor)[4].
Encryption and Validation
- FIPS 140-2 compliance: Encrypt all data flows involving URLs using FIPS-validated modules[1][8].
- Secure coding practices: Sanitize URL inputs to prevent injection attacks like SQLi and forceful browsing via URL manipulation[6][7].
Access and Session Controls
- Idle session termination: Automatically log users out after 15 minutes of inactivity[2][4].
- Concurrent session limits: Restrict to 2-3 sessions per account[2].
- Role-based access: Ensure URLs/resources are accessible only to authorized roles[2][4].
Infrastructure and Monitoring
- Use FedRAMP-authorized endpoints: Configure logging, monitoring, and APIs to use compliant endpoints (e.g.,
gov-collector.newrelic.com)[5]. - Network segmentation: Deploy hub-and-spoke architectures with firewalls and private service connect endpoints[4].
Testing and Compliance
- Penetration testing: Validate defenses against URL-based attacks like CAPTCHA bypass and parameter tampering[6][7].
- Automated scanning: Continuously check for vulnerabilities in URL handling components[6].
By integrating these practices, applications can align with FedRAMP requirements such as AC-11 (session lock), IA-2 (MFA), and AC-17 (secure remote access)[2][4][8]. Cloud providers like Google Cloud and AWS offer FedRAMP-authorized tools (e.g., Assured Workloads, Cloud Armor) to simplify implementation[4][10].
Citations:
- 1: https://www.fedramp.gov/faqs/
- 2: https://docs.cyberark.com/identity/latest/en/content/getstarted/fedramp-compliance.htm
- 3: https://live.paloaltonetworks.com/t5/community-blogs/url-filtering-category-recommendations/ba-p/325701
- 4: https://cloud.google.com/blog/products/identity-security/how-you-can-build-a-fedramp-high-compliant-network-with-assured-workloads
- 5: https://docs.newrelic.com/docs/security/security-privacy/compliance/fedramp-compliant-endpoints/
- 6: https://duplocloud.com/ebook/fedramp-compliance-checklist/
- 7: https://www.fedramp.gov/assets/resources/documents/CSP_Penetration_Test_Guidance.pdf
- 8: https://www.auditboard.com/blog/what-is-fedramp-compliance/
- 9: https://www.fedramp.gov/assets/resources/documents/CSP_Penetration_Test_Guidance_public_comment.pdf
- 10: https://docs.aws.amazon.com/config/latest/developerguide/operational-best-practices-for-fedramp-moderate.html
Action Requested: Externalize Sensitive URL Configuration
The hardcoded URL at packages/calling/src/CallingClient/registration/register.ts (lines 121 and 616) exposes environment-specific and potentially sensitive infrastructure details. According to FedRAMP best practices:
- Separation of Concerns: Sensitive endpoints should not be embedded in the source code. Instead, they must be managed via configuration settings or environment variables.
- Operational Flexibility: Externalizing the URL allows updates without requiring a code release.
- Compliance: This practice ensures alignment with FedRAMP guidelines that mandate secure handling and configurable endpoints to protect against unauthorized access and simplify compliance measures.
Refactoring Suggestion:
Replace the hardcoded URL with a configuration variable (e.g., using an environment variable such as process.env.CALLING_API_URL). This change will not only enhance security but also support more agile deployment practices.
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