mirror of
https://github.com/RevenueCat/purchases-ios
synced 2026-11-09 22:35:56 +05:45
Rick
0ff3e97d0d
* Validate checkpoint identifiers * Address checkpoint identifier review feedback * Fix checkpoint validation review feedback
52 lines
1.7 KiB
Swift
52 lines
1.7 KiB
Swift
//
|
|
// Copyright RevenueCat Inc. All Rights Reserved.
|
|
//
|
|
// Licensed under the MIT License (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// https://opensource.org/licenses/MIT
|
|
//
|
|
// CheckpointIdentifierValidator.swift
|
|
//
|
|
// Created by Rick van der Linden.
|
|
//
|
|
|
|
enum CheckpointIdentifierValidator {
|
|
|
|
static let maxLength = 255
|
|
|
|
static func isValid(_ identifier: String) -> Bool {
|
|
let characters = identifier.utf8
|
|
|
|
guard
|
|
(1...Self.maxLength).contains(characters.count),
|
|
let firstCharacter = characters.first,
|
|
Self.isASCIILetter(firstCharacter)
|
|
else {
|
|
return false
|
|
}
|
|
|
|
return characters.dropFirst().allSatisfy(Self.isAllowedCharacter)
|
|
}
|
|
|
|
static func invalidIdentifierLogMessage(_ identifier: String) -> String {
|
|
return "Dropping invalid checkpoint identifier '\(identifier)'. Identifiers must start with a letter, " +
|
|
"contain only ASCII letters, numbers, underscores, and hyphens, and be no more than " +
|
|
"\(Self.maxLength) characters."
|
|
}
|
|
|
|
private static func isAllowedCharacter(_ character: UInt8) -> Bool {
|
|
return Self.isASCIILetter(character)
|
|
|| (UInt8(ascii: "0")...UInt8(ascii: "9")).contains(character)
|
|
|| character == UInt8(ascii: "_")
|
|
|| character == UInt8(ascii: "-")
|
|
}
|
|
|
|
private static func isASCIILetter(_ character: UInt8) -> Bool {
|
|
return (UInt8(ascii: "a")...UInt8(ascii: "z")).contains(character)
|
|
|| (UInt8(ascii: "A")...UInt8(ascii: "Z")).contains(character)
|
|
}
|
|
|
|
}
|