42 lines
1.5 KiB
Swift
42 lines
1.5 KiB
Swift
import Foundation
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enum URLNormalizer {
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static func normalizeBaseURL(_ input: String, fieldName: String = "URL") throws -> String {
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let trimmed = input.trimmingCharacters(in: .whitespacesAndNewlines)
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guard !trimmed.isEmpty else {
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throw PostingError(message: "\(fieldName) cannot be empty.")
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}
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let prefixed = if trimmed.hasPrefix("http://") || trimmed.hasPrefix("https://") {
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trimmed
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} else {
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"https://\(trimmed)"
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}
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guard var components = URLComponents(string: prefixed),
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let scheme = components.scheme?.lowercased(),
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(scheme == "https" || scheme == "http"),
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components.host != nil
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else {
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throw PostingError(message: "Invalid \(fieldName). Please provide a full domain, e.g. example.com.")
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}
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components.path = ""
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components.query = nil
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components.fragment = nil
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guard let normalized = components.url?.absoluteString else {
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throw PostingError(message: "Invalid \(fieldName).")
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}
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return normalized.trimmingCharacters(in: CharacterSet(charactersIn: "/"))
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}
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static func endpointURL(baseURL: String, path: String, fieldName: String = "URL") throws -> URL {
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let normalizedBase = try normalizeBaseURL(baseURL, fieldName: fieldName)
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guard let url = URL(string: normalizedBase + path) else {
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throw PostingError(message: "Failed to build API URL from \(fieldName).")
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}
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return url
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}
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}
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