Fix search bar IP validation when using ;maxDays parameter

[Copilot]

Issue

The search bar was failing with "Error during search: dns_bad_ip_address" when users entered an IP address with the optional ;maxDays parameter (e.g., 8.8.8.8;60). This prevented users from customizing the abuse report time range when searching cloud IP ranges.

Root Cause

The ValidateAndSearch() method in Pages/Home.razor was attempting to parse the raw user input directly with IPAddress.Parse() without first stripping the ;maxDays suffix. This caused the parser to fail since "8.8.8.8;60" is not a valid IP address format.

While the IsValidIPAddress() validation method correctly handled the semicolon separator, and the AbuseIPDBService.CheckIPAsync() method also properly parsed it, the cloud IP search functionality was missing this extraction step.

Solution

Added IP address extraction logic in the ValidateAndSearch() method to strip the ;maxDays suffix before parsing, matching the pattern already used elsewhere in the codebase:

// Extract just the IP address part (strip ;maxDays if present)
string actualIpAddress = ipAddress.Contains(';') 
    ? ipAddress.Split(';', 2)[0].Trim() 
    : ipAddress.Trim();

// Parse the entered IP address
IPAddress enteredIp = IPAddress.Parse(actualIpAddress);

Testing

The fix has been verified to work with all documented input formats:

• ✅ 8.8.8.8 - Standard IP lookup (30 days of abuse reports)
• ✅ 8.8.8.8;60 - Custom report age (60 days of history) - now works!
• ✅ 2001:4860:4860::8888 - IPv6 addresses supported
• ✅ 2001:4860:4860::8888;90 - IPv6 with custom maxDays - now works!

Both the "Search" button (cloud IP range lookup) and "Check IP Reputation" button (AbuseIPDB lookup) now handle the ;maxDays parameter correctly.

Impact

This is a minimal, surgical fix that adds only 5 lines of code to resolve the issue without affecting any other functionality.

Fixes #[issue_number]

Original prompt

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This section details on the original issue you should resolve

<issue_title>Seach bar IP maxDay validation issue</issue_title>
<issue_description>The search bar returns "Error during search: dns_bad_ip_address" when parsing the ;maxDays parameter.</issue_description>

Comments on the Issue (you are @copilot in this section)

Fixes #4

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📝 PR Details

Branch: copilot/fix-search-bar-maxdays-validation
Commit: e880b08c
Author: @Copilot
Target: main
Last Updated: 2025-10-14T13:33:31.802Z

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