Unified Diff: FavIcon/IconExtraction.swift
Issue 29664569:
Favicon: Issue 6245 - SwiftLinted project files (Closed)
Patch Set: Favicon: Issue 6245 - SwiftLinted project files
Created Jan. 12, 2018, 4:50 p.m.
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| Index: FavIcon/IconExtraction.swift |
| diff --git a/FavIcon/IconExtraction.swift b/FavIcon/IconExtraction.swift |
| index e010dc1b43681c05b8c55686784cf57410602901..af56a572d9beeb0c5ead925e69721553eb628474 100644 |
| --- a/FavIcon/IconExtraction.swift |
| +++ b/FavIcon/IconExtraction.swift |
| @@ -15,44 +15,44 @@ |
| // limitations under the License. |
| // |
| -import Foundation |
| import FavIcon.XMLDocument |
| +import Foundation |
| /// Represents an icon size. |
| -struct IconSize : Hashable, Equatable { |
| - var hashValue: Int { |
| - return width.hashValue ^ height.hashValue |
| - } |
| - |
| - static func ==(lhs: IconSize, rhs: IconSize) -> Bool { |
| - return lhs.width == rhs.width && lhs.height == rhs.height |
| - } |
| - |
| - /// The width of the icon. |
| - let width: Int |
| - /// The height of the icon. |
| - let height: Int |
| +struct IconSize: Hashable, Equatable { |
| + var hashValue: Int { |
| + return width.hashValue ^ height.hashValue |
| + } |
| + |
| + static func == (lhs: IconSize, rhs: IconSize) -> Bool { |
| + return lhs.width == rhs.width && lhs.height == rhs.height |
| + } |
| + |
| + /// The width of the icon. |
| + let width: Int |
| + /// The height of the icon. |
| + let height: Int |
| } |
| private let kRelIconTypeMap: [IconSize: DetectedIconType] = [ |
| - IconSize(width: 16, height: 16): .classic, |
| - IconSize(width: 32, height: 32): .appleOSXSafariTab, |
| - IconSize(width: 96, height: 96): .googleTV, |
| - IconSize(width: 192, height: 192): .googleAndroidChrome, |
| - IconSize(width: 196, height: 196): .googleAndroidChrome |
| + IconSize(width: 16, height: 16): .classic, |
| + IconSize(width: 32, height: 32): .appleOSXSafariTab, |
| + IconSize(width: 96, height: 96): .googleTV, |
| + IconSize(width: 192, height: 192): .googleAndroidChrome, |
| + IconSize(width: 196, height: 196): .googleAndroidChrome |
| ] |
| private let kMicrosoftSizeMap: [String: IconSize] = [ |
| - "msapplication-tileimage": IconSize(width: 144, height: 144), |
| - "msapplication-square70x70logo": IconSize(width: 70, height: 70), |
| - "msapplication-square150x150logo": IconSize(width: 150, height: 150), |
| - "msapplication-wide310x150logo": IconSize(width: 310, height: 150), |
| - "msapplication-square310x310logo": IconSize(width: 310, height: 310), |
| + "msapplication-tileimage": IconSize(width: 144, height: 144), |
| + "msapplication-square70x70logo": IconSize(width: 70, height: 70), |
| + "msapplication-square150x150logo": IconSize(width: 150, height: 150), |
| + "msapplication-wide310x150logo": IconSize(width: 310, height: 150), |
| + "msapplication-square310x310logo": IconSize(width: 310, height: 310) |
| ] |
| private let siteImage: [String: IconSize] = [ |
| - "og:image": IconSize(width: 1024, height: 512), |
| - "twitter:image": IconSize(width: 1024, height: 512) |
| + "og:image": IconSize(width: 1024, height: 512), |
| + "twitter:image": IconSize(width: 1024, height: 512) |
| ] |
| /// Extracts a list of icons from the `<head>` section of an HTML document. |
| @@ -62,149 +62,136 @@ private let siteImage: [String: IconSize] = [ |
| /// - parameter returns: An array of `DetectedIcon` structures. |
| // swiftlint:disable function_body_length |
| // swiftlint:disable cyclomatic_complexity |
| -func examineHTMLMeta(_ document: HTMLDocument, baseURL: URL) -> [String:String] { |
| - var resp: [String:String] = [:] |
| - for meta in document.query("/html/head/meta") { |
| - if let property = meta.attributes["property"]?.lowercased(), |
| - let content = meta.attributes["content"]{ |
| - switch property { |
| - case "og:url": |
| - resp["og:url"] = content; |
| - break |
| - case "og:description": |
| - resp["description"] = content; |
| - break |
| - case "og:image": |
| - resp["image"] = content; |
| - break |
| - case "og:title": |
| - resp["title"] = content; |
| - break |
| - case "og:site_name": |
| - resp["site_name"] = content; |
| - break |
| - default: |
| - break |
| - } |
| - } |
| - if let name = meta.attributes["name"]?.lowercased(), |
| - let content = meta.attributes["content"], |
| - name == "description" { |
| - resp["description"] = resp["description"] ?? content; |
| +func examineHTMLMeta(_ document: HTMLDocument, baseURL: URL) -> [String: String] { |
| + var resp: [String: String] = [:] |
| + for meta in document.query("/html/head/meta") { |
| + if let property = meta.attributes["property"]?.lowercased(), |
| + let content = meta.attributes["content"] { |
| + switch property { |
| + case "og:url": |
| + resp["og:url"] = content |
| + case "og:description": |
| + resp["description"] = content |
| + case "og:image": |
| + resp["image"] = content |
| + case "og:title": |
| + resp["title"] = content |
| + case "og:site_name": |
| + resp["site_name"] = content |
| + default: |
| + break |
| + } |
| + } |
| + if let name = meta.attributes["name"]?.lowercased(), |
| + let content = meta.attributes["content"], |
| + name == "description" { |
| + resp["description"] = resp["description"] ?? content |
| + } |
| } |
| - } |
| - |
| - for title in document.query("/html/head/title") { |
| - if let titleString = title.contents { |
| - resp["title"] = resp["title"] ?? titleString; |
| + |
| + for title in document.query("/html/head/title") { |
| + if let titleString = title.contents { |
| + resp["title"] = resp["title"] ?? titleString |
| + } |
| } |
| - } |
| - |
| - for link in document.query("/html/head/link") { |
| - if let rel = link.attributes["rel"], |
| - let href = link.attributes["href"], |
| - let url = URL(string: href, relativeTo: baseURL) |
| - { |
| - switch rel.lowercased() { |
| - case "canonical": |
| - resp["canonical"] = url.absoluteString; |
| - break |
| - case "amphtml": |
| - resp["amphtml"] = url.absoluteString; |
| - break |
| - case "search": |
| - resp["search"] = url.absoluteString; |
| - break |
| - case "fluid-icon": |
| - resp["fluid-icon"] = url.absoluteString; |
| - break |
| - case "alternate": |
| - let application = link.attributes["application"] |
| - if application == "application/atom+xml" { |
| - resp["atom"] = url.absoluteString; |
| + |
| + for link in document.query("/html/head/link") { |
| + if let rel = link.attributes["rel"], |
| + let href = link.attributes["href"], |
| + let url = URL(string: href, relativeTo: baseURL) { |
| + switch rel.lowercased() { |
| + case "canonical": |
| + resp["canonical"] = url.absoluteString |
| + case "amphtml": |
| + resp["amphtml"] = url.absoluteString |
| + case "search": |
| + resp["search"] = url.absoluteString |
| + case "fluid-icon": |
| + resp["fluid-icon"] = url.absoluteString |
| + case "alternate": |
| + let application = link.attributes["application"] |
| + if application == "application/atom+xml" { |
| + resp["atom"] = url.absoluteString |
| + } |
| + default: |
| + break |
| + } |
| } |
| - break |
| - default: |
| - break |
| - } |
| } |
| - } |
| - |
| - return resp; |
| + return resp |
| } |
| func extractHTMLHeadIcons(_ document: HTMLDocument, baseURL: URL) -> [DetectedIcon] { |
| - var icons: [DetectedIcon] = [] |
| - |
| - for link in document.query("/html/head/link") { |
| - if let rel = link.attributes["rel"], |
| - let href = link.attributes["href"], |
| - let url = URL(string: href, relativeTo: baseURL) { |
| - switch rel.lowercased() { |
| - case "shortcut icon": |
| - icons.append(DetectedIcon(url: url.absoluteURL, type:.shortcut)) |
| - break |
| - case "icon": |
| - if let type = link.attributes["type"], type.lowercased() == "image/png" { |
| - let sizes = parseHTMLIconSizes(link.attributes["sizes"]) |
| - if sizes.count > 0 { |
| - for size in sizes { |
| - if let type = kRelIconTypeMap[size] { |
| - icons.append(DetectedIcon(url: url, |
| - type: type, |
| - width: size.width, |
| - height: size.height)) |
| - } |
| + var icons: [DetectedIcon] = [] |
| + |
| + for link in document.query("/html/head/link") { |
| + if let rel = link.attributes["rel"], |
| + let href = link.attributes["href"], |
| + let url = URL(string: href, relativeTo: baseURL) { |
| + switch rel.lowercased() { |
| + case "shortcut icon": |
| + icons.append(DetectedIcon(url: url.absoluteURL, type: .shortcut)) |
| + case "icon": |
| + if let type = link.attributes["type"], type.lowercased() == "image/png" { |
| + let sizes = parseHTMLIconSizes(link.attributes["sizes"]) |
| + if sizes.count > 0 { |
| + for size in sizes { |
| + if let type = kRelIconTypeMap[size] { |
| + icons.append(DetectedIcon(url: url, |
| + type: type, |
| + width: size.width, |
| + height: size.height)) |
| + } |
| + } |
| + } else { |
| + icons.append(DetectedIcon(url: url.absoluteURL, type: .classic)) |
| + } |
| + } else { |
| + icons.append(DetectedIcon(url: url.absoluteURL, type: .classic)) |
| + } |
| + case "apple-touch-icon": |
| + let sizes = parseHTMLIconSizes(link.attributes["sizes"]) |
| + if sizes.count > 0 { |
| + for size in sizes { |
| + icons.append(DetectedIcon(url: url.absoluteURL, |
| + type: .appleIOSWebClip, |
| + width: size.width, |
| + height: size.height)) |
| + } |
| + } else { |
| + icons.append(DetectedIcon(url: url.absoluteURL, |
| + type: .appleIOSWebClip, |
| + width: 60, |
| + height: 60)) |
| + } |
| + default: |
| + break |
| } |
| - } else { |
| - icons.append(DetectedIcon(url: url.absoluteURL, type: .classic)) |
| - } |
| - } else { |
| - icons.append(DetectedIcon(url: url.absoluteURL, type: .classic)) |
| } |
| - case "apple-touch-icon": |
| - let sizes = parseHTMLIconSizes(link.attributes["sizes"]) |
| - if sizes.count > 0 { |
| - for size in sizes { |
| - icons.append(DetectedIcon(url: url.absoluteURL, |
| - type: .appleIOSWebClip, |
| + } |
| + |
| + for meta in document.query("/html/head/meta") { |
| + if let name = meta.attributes["name"]?.lowercased(), |
| + let content = meta.attributes["content"], |
| + let url = URL(string: content, relativeTo: baseURL), |
| + let size = kMicrosoftSizeMap[name] { |
| + icons.append(DetectedIcon(url: url, |
| + type: .microsoftPinnedSite, |
| width: size.width, |
| height: size.height)) |
| - } |
| - } else { |
| - icons.append(DetectedIcon(url: url.absoluteURL, |
| - type: .appleIOSWebClip, |
| - width: 60, |
| - height: 60)) |
| + } else if |
| + let property = meta.attributes["property"]?.lowercased(), |
| + let content = meta.attributes["content"], |
| + let url = URL(string: content, relativeTo: baseURL), |
| + let size = siteImage[property] { |
| + icons.append(DetectedIcon(url: url, |
| + type: .FBImage, |
| + width: size.width, |
| + height: size.height)) |
| } |
| - default: |
| - break |
| - } |
| } |
| - } |
| - |
| - for meta in document.query("/html/head/meta") { |
| - if let name = meta.attributes["name"]?.lowercased(), |
| - let content = meta.attributes["content"], |
| - let url = URL(string: content, relativeTo: baseURL), |
| - let size = kMicrosoftSizeMap[name] { |
| - icons.append(DetectedIcon(url: url, |
| - type: .microsoftPinnedSite, |
| - width: size.width, |
| - height: size.height)) |
| - } else if |
| - let property = meta.attributes["property"]?.lowercased(), |
| - let content = meta.attributes["content"], |
| - let url = URL(string: content, relativeTo: baseURL), |
| - let size = siteImage[property] { |
| - icons.append(DetectedIcon(url: url, |
| - type: .FBImage, |
| - width: size.width, |
| - height: size.height)) |
| - } |
| - } |
| - |
| - return icons |
| + |
| + return icons |
| } |
| // swiftlint:enable cyclomatic_complexity |
| // swiftlint:enable function_body_length |
| @@ -215,32 +202,32 @@ func extractHTMLHeadIcons(_ document: HTMLDocument, baseURL: URL) -> [DetectedIc |
| /// - parameter baseURL: A base URL to combine with any relative image paths. |
| /// - returns: An array of `DetectedIcon` structures. |
| func extractManifestJSONIcons(_ jsonString: String, baseURL: URL) -> [DetectedIcon] { |
| - var icons: [DetectedIcon] = [] |
| - |
| - if let data = jsonString.data(using: String.Encoding.utf8), |
| - let object = try? JSONSerialization.jsonObject(with: data, options: JSONSerialization.ReadingOptions()), |
| - let manifest = object as? NSDictionary, |
| - let manifestIcons = manifest["icons"] as? [NSDictionary] { |
| - for icon in manifestIcons { |
| - if let type = icon["type"] as? String, type.lowercased() == "image/png", |
| - let src = icon["src"] as? String, |
| - let url = URL(string: src, relativeTo: baseURL)?.absoluteURL { |
| - let sizes = parseHTMLIconSizes(icon["sizes"] as? String) |
| - if sizes.count > 0 { |
| - for size in sizes { |
| - icons.append(DetectedIcon(url: url, |
| - type: .webAppManifest, |
| - width: size.width, |
| - height: size.height)) |
| - } |
| - } else { |
| - icons.append(DetectedIcon(url: url, type: .webAppManifest)) |
| + var icons: [DetectedIcon] = [] |
| + |
| + if let data = jsonString.data(using: String.Encoding.utf8), |
| + let object = try? JSONSerialization.jsonObject(with: data, options: JSONSerialization.ReadingOptions()), |
| + let manifest = object as? NSDictionary, |
| + let manifestIcons = manifest["icons"] as? [NSDictionary] { |
| + for icon in manifestIcons { |
| + if let type = icon["type"] as? String, type.lowercased() == "image/png", |
| + let src = icon["src"] as? String, |
| + let url = URL(string: src, relativeTo: baseURL)?.absoluteURL { |
| + let sizes = parseHTMLIconSizes(icon["sizes"] as? String) |
| + if sizes.count > 0 { |
| + for size in sizes { |
| + icons.append(DetectedIcon(url: url, |
| + type: .webAppManifest, |
| + width: size.width, |
| + height: size.height)) |
| + } |
| + } else { |
| + icons.append(DetectedIcon(url: url, type: .webAppManifest)) |
| + } |
| + } |
| } |
| - } |
| } |
| - } |
| - |
| - return icons |
| + |
| + return icons |
| } |
| /// Extracts a list of icons from a Microsoft browser configuration XML document. |
| @@ -249,34 +236,29 @@ func extractManifestJSONIcons(_ jsonString: String, baseURL: URL) -> [DetectedIc |
| /// - parameter baseURL: A base URL to combine with any relative image paths. |
| /// - returns: An array of `DetectedIcon` structures. |
| func extractBrowserConfigXMLIcons(_ document: LBXMLDocument, baseURL: URL) -> [DetectedIcon] { |
| - var icons: [DetectedIcon] = [] |
| - |
| - for tile in document.query("/browserconfig/msapplication/tile/*") { |
| - if let src = tile.attributes["src"], |
| - let url = URL(string: src, relativeTo: baseURL)?.absoluteURL { |
| - switch tile.name.lowercased() { |
| - case "tileimage": |
| - icons.append(DetectedIcon(url: url, type: .microsoftPinnedSite, width: 144, height: 144)) |
| - break |
| - case "square70x70logo": |
| - icons.append(DetectedIcon(url: url, type: .microsoftPinnedSite, width: 70, height: 70)) |
| - break |
| - case "square150x150logo": |
| - icons.append(DetectedIcon(url: url, type: .microsoftPinnedSite, width: 150, height: 150)) |
| - break |
| - case "wide310x150logo": |
| - icons.append(DetectedIcon(url: url, type: .microsoftPinnedSite, width: 310, height: 150)) |
| - break |
| - case "square310x310logo": |
| - icons.append(DetectedIcon(url: url, type: .microsoftPinnedSite, width: 310, height: 310)) |
| - break |
| - default: |
| - break |
| - } |
| + var icons: [DetectedIcon] = [] |
| + |
| + for tile in document.query("/browserconfig/msapplication/tile/*") { |
| + if let src = tile.attributes["src"], |
| + let url = URL(string: src, relativeTo: baseURL)?.absoluteURL { |
| + switch tile.name.lowercased() { |
| + case "tileimage": |
| + icons.append(DetectedIcon(url: url, type: .microsoftPinnedSite, width: 144, height: 144)) |
| + case "square70x70logo": |
| + icons.append(DetectedIcon(url: url, type: .microsoftPinnedSite, width: 70, height: 70)) |
| + case "square150x150logo": |
| + icons.append(DetectedIcon(url: url, type: .microsoftPinnedSite, width: 150, height: 150)) |
| + case "wide310x150logo": |
| + icons.append(DetectedIcon(url: url, type: .microsoftPinnedSite, width: 310, height: 150)) |
| + case "square310x310logo": |
| + icons.append(DetectedIcon(url: url, type: .microsoftPinnedSite, width: 310, height: 310)) |
| + default: |
| + break |
| + } |
| + } |
| } |
| - } |
| - |
| - return icons |
| + |
| + return icons |
| } |
| /// Extracts the Web App Manifest URLs from an HTML document, if any. |
| @@ -285,14 +267,14 @@ func extractBrowserConfigXMLIcons(_ document: LBXMLDocument, baseURL: URL) -> [D |
| /// - parameter baseURL: The base URL that any 'href' attributes are relative to. |
| /// - returns: An array of Web App Manifest `URL`s. |
| func extractWebAppManifestURLs(_ document: HTMLDocument, baseURL: URL) -> [URL] { |
| - var urls: [URL] = [] |
| - for link in document.query("/html/head/link") { |
| - if let rel = link.attributes["rel"]?.lowercased(), rel == "manifest", |
| - let href = link.attributes["href"], let manifestURL = URL(string: href, relativeTo: baseURL) { |
| - urls.append(manifestURL) |
| + var urls: [URL] = [] |
| + for link in document.query("/html/head/link") { |
| + if let rel = link.attributes["rel"]?.lowercased(), rel == "manifest", |
| + let href = link.attributes["href"], let manifestURL = URL(string: href, relativeTo: baseURL) { |
| + urls.append(manifestURL) |
| + } |
| } |
| - } |
| - return urls |
| + return urls |
| } |
| /// Extracts the first browser config XML file URL from an HTML document, if any. |
| @@ -302,18 +284,18 @@ func extractWebAppManifestURLs(_ document: HTMLDocument, baseURL: URL) -> [URL] |
| /// - returns: A named tuple describing the file URL or a flag indicating that the server |
| /// explicitly requested that the file not be downloaded. |
| func extractBrowserConfigURL(_ document: HTMLDocument, baseURL: URL) -> (url: URL?, disabled: Bool) { |
| - for meta in document.query("/html/head/meta") { |
| - if let name = meta.attributes["name"]?.lowercased(), name == "msapplication-config", |
| - let content = meta.attributes["content"] { |
| - if content.lowercased() == "none" { |
| - // Explicitly asked us not to download the file. |
| - return (url: nil, disabled: true) |
| - } else { |
| - return (url: URL(string: content, relativeTo: baseURL)?.absoluteURL, disabled: false) |
| - } |
| + for meta in document.query("/html/head/meta") { |
| + if let name = meta.attributes["name"]?.lowercased(), name == "msapplication-config", |
| + let content = meta.attributes["content"] { |
| + if content.lowercased() == "none" { |
| + // Explicitly asked us not to download the file. |
| + return (url: nil, disabled: true) |
| + } else { |
| + return (url: URL(string: content, relativeTo: baseURL)?.absoluteURL, disabled: false) |
| + } |
| + } |
| } |
| - } |
| - return (url: nil, disabled: false) |
| + return (url: nil, disabled: false) |
| } |
| /// Helper function for parsing a W3 `sizes` attribute value. |
| @@ -321,16 +303,15 @@ func extractBrowserConfigURL(_ document: HTMLDocument, baseURL: URL) -> (url: UR |
| /// - parameter string: If not `nil`, the value of the attribute to parse (e.g. `50x50 144x144`). |
| /// - returns: An array of `IconSize` structs for each size found. |
| func parseHTMLIconSizes(_ string: String?) -> [IconSize] { |
| - var sizes: [IconSize] = [] |
| - if let string = string?.lowercased(), string != "any" { |
| - for size in string.components(separatedBy: .whitespaces) { |
| - let parts = size.components(separatedBy: "x") |
| - if parts.count != 2 { continue } |
| - if let width = Int(parts[0]), let height = Int(parts[1]) { |
| - sizes.append(IconSize(width: width, height: height)) |
| - } |
| + var sizes: [IconSize] = [] |
| + if let string = string?.lowercased(), string != "any" { |
| + for size in string.components(separatedBy: .whitespaces) { |
| + let parts = size.components(separatedBy: "x") |
| + if parts.count != 2 { continue } |
| + if let width = Int(parts[0]), let height = Int(parts[1]) { |
| + sizes.append(IconSize(width: width, height: height)) |
| + } |
| + } |
| } |
| - } |
| - return sizes |
| + return sizes |
| } |
| - |
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