114 lines
3.8 KiB
Swift
114 lines
3.8 KiB
Swift
// Gravatar.swift
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//
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// Copyright (c) 2015 Alamofire Software Foundation (http://alamofire.org/)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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import Foundation
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import UIKit
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private extension String {
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var md5_hash: String {
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let trimmedString = lowercaseString.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceCharacterSet())
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let utf8String = trimmedString.cStringUsingEncoding(NSUTF8StringEncoding)!
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let stringLength = CC_LONG(trimmedString.lengthOfBytesUsingEncoding(NSUTF8StringEncoding))
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let digestLength = Int(CC_MD5_DIGEST_LENGTH)
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let result = UnsafeMutablePointer<CUnsignedChar>.alloc(digestLength)
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CC_MD5(utf8String, stringLength, result)
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var hash = ""
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for i in 0..<digestLength {
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hash += String(format: "%02x", result[i])
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}
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result.dealloc(digestLength)
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return String(format: hash)
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}
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}
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// MARK: - QueryItemConvertible
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private protocol QueryItemConvertible {
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var queryItem: NSURLQueryItem {get}
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}
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// MARK: -
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public struct Gravatar {
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public enum DefaultImage: String, QueryItemConvertible {
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case HTTP404 = "404"
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case MysteryMan = "mm"
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case Identicon = "identicon"
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case MonsterID = "monsterid"
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case Wavatar = "wavatar"
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case Retro = "retro"
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case Blank = "blank"
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var queryItem: NSURLQueryItem {
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return NSURLQueryItem(name: "d", value: rawValue)
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}
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}
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public enum Rating: String, QueryItemConvertible {
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case G = "g"
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case PG = "pg"
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case R = "r"
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case X = "x"
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var queryItem: NSURLQueryItem {
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return NSURLQueryItem(name: "r", value: rawValue)
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}
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}
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public let email: String
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public let forceDefault: Bool
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public let defaultImage: DefaultImage
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public let rating: Rating
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private static let baseURL = NSURL(string: "https://secure.gravatar.com/avatar")!
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public init(
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emailAddress: String,
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defaultImage: DefaultImage = .MysteryMan,
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forceDefault: Bool = false,
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rating: Rating = .PG)
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{
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self.email = emailAddress
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self.defaultImage = defaultImage
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self.forceDefault = forceDefault
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self.rating = rating
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}
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public func URL(size size: CGFloat, scale: CGFloat = UIScreen.mainScreen().scale) -> NSURL {
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let URL = Gravatar.baseURL.URLByAppendingPathComponent(email.md5_hash)
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let components = NSURLComponents(URL: URL, resolvingAgainstBaseURL: false)!
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var queryItems = [defaultImage.queryItem, rating.queryItem]
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queryItems.append(NSURLQueryItem(name: "f", value: forceDefault ? "y" : "n"))
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queryItems.append(NSURLQueryItem(name: "s", value: String(format: "%.0f",size * scale)))
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components.queryItems = queryItems
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return components.URL!
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}
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}
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