Add Safari Extensions to repo (#56)

* Add Safari Extensions to repo

* Delete .DS_Store that snuck in

safari/Legacy iOS/.gitignore

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+.DS_Store
+*.xcuserdatad

safari/Legacy iOS/KagiForSafari Extension/Info.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>NSExtension</key>
+	<dict>
+		<key>NSExtensionPointIdentifier</key>
+		<string>com.apple.Safari.web-extension</string>
+		<key>NSExtensionPrincipalClass</key>
+		<string>$(PRODUCT_MODULE_NAME).SafariWebExtensionHandler</string>
+	</dict>
+</dict>
+</plist>

safari/Legacy iOS/KagiForSafari Extension/Resources/_locales/en/messages.json

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+{
+    "extension_name": {
+        "message": "Kagi Search",
+        "description": "..."
+    },
+    "extension_description": {
+        "message": "With Kagi Search extension you can get your search queries sent to Kagi while using Safari.",
+        "description": "..."
+    }
+}

safari/Legacy iOS/KagiForSafari Extension/Resources/background.js

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+chrome.webNavigation.onBeforeNavigate.addListener(function(details) {
+	let url = details.url;
+	if (typeof(url) !== "undefined" && url.startsWith(`https://kagi.com`)) {
+		chrome.storage.local.set({ lastKagiUrl: url });
+	} else {
+		chrome.storage.local.set({ lastKagiUrl: "" });
+	}
+});

safari/Legacy iOS/KagiForSafari Extension/Resources/content.js

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+const searchQuery = navigateIfNeeded(window.location);
+
+if (window.location.href.startsWith("https://kagi.com/")) {
+	if (window.location.href.startsWith("https://kagi.com/signin") && getCookie("extRedirected") == "") {
+		setCookie("extRedirected", "1");
+		chrome.storage.local.get(["privateSessionLink", "lastKagiUrl"], function(value) {
+			var privateSessionLink = value.privateSessionLink;
+			var lastKagiUrl = value.lastKagiUrl;
+			var searchQuery = getParameterByName("q", lastKagiUrl)
+			if (typeof(privateSessionLink) !== "undefined" && privateSessionLink.startsWith(`https://kagi.com/`)) {
+                if (privateSessionLink.includes("q=%s")) {
+                    window.location.replace(privateSessionLink.replace("%s", searchQuery != null ? searchQuery : ""));
+                } else {
+                    window.location.replace(privateSessionLink.concat("&q=", searchQuery != null ? searchQuery : ""));
+                }
+			}
+		});
+	} else {
+		setCookie("extRedirected", "");
+	}
+} else if (searchQuery != null) {
+	if (!shouldSkipRedirect()) {
+		window.location.replace(`https://kagi.com/search?q=${searchQuery}`);
+	}
+}
+
+function shouldSkipRedirect(url = window.location.href) {
+	var result = false;
+	const host = location.host.replace("www.", "");
+	if (host.includes("google.") && getParameterByName("client") == null) {
+		result = true;
+	} else if (host.includes("bing.") && getParameterByName("form") == null) {
+		result = true;
+	} else if (host.includes("duckduckgo.") && getParameterByName("t") == null) {
+		result = true;
+	} else if (host.includes("search.yahoo.") && getParameterByName("fr") == null) {
+		result = true;
+	}
+
+	return result;
+}
+
+function navigateIfNeeded(location) {
+	var result = null;
+	const host = location.host.replace("www.", "");
+
+	["google.", "bing.", "ecosia.", "search.yahoo"].forEach(function(item){
+		if (host.includes(item)) {
+			if (location.pathname === "/search") {
+				result = getParameterByName((host.includes("search.yahoo")) ? "p" : "q");
+			}
+		}
+	});
+
+
+	if (host.startsWith("duckduckgo.")) {
+		result = getParameterByName("q");
+	}
+
+	if (host.startsWith("yandex.")) {
+		if (location.pathname === "/search/touch/") {
+			result = getParameterByName("text");
+		}
+	}
+
+	["baidu.", "so."].forEach(function(item){
+		if (host.includes(item)) {
+			result = getParameterByName((host.includes("baidu.")) ? "oq" : "src");
+		}
+	});
+
+	if (host.startsWith("sogou.")) {
+		if (location.pathname === "/web") {
+			result = getParameterByName("query");
+		}
+	}
+
+	return result;
+}
+
+function getParameterByName(name, url = window.location.href) {
+	name = name.replace(/[\[\]]/g, '\\$&');
+	var regex = new RegExp('[?&]' + name + '(=([^&#]*)|&|#|$)'),
+		results = regex.exec(url);
+
+	if (!results) return null;
+	if (!results[2]) return '';
+
+	return results[2].replace(/\+/g, ' ');
+}
+
+function setCookie(cname, cvalue) {
+	const d = new Date();
+	d.setTime(d.getTime() + (5000));
+	let expires = "expires="+ d.toUTCString();
+	document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
+}
+
+function getCookie(cname) {
+	let name = cname + "=";
+	let decodedCookie = decodeURIComponent(document.cookie);
+	let ca = decodedCookie.split(';');
+	for(let i = 0; i <ca.length; i++) {
+		let c = ca[i];
+		while (c.charAt(0) == ' ') {
+			c = c.substring(1);
+		}
+		if (c.indexOf(name) == 0) {
+			return c.substring(name.length, c.length);
+		}
+	}
+	return "";
+}

safari/Legacy iOS/KagiForSafari Extension/Resources/manifest.json

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+{
+	"manifest_version": 2,
+	"default_locale": "en",
+
+	"name": "__MSG_extension_name__",
+	"description": "__MSG_extension_description__",
+	"version": "1.0.9",
+
+	"icons": {
+		"48": "images/icon.png",
+		"96": "images/icon.png",
+		"128": "images/icon.png"
+	},
+
+	"background": {
+		"scripts": ["background.js"],
+		"persistent": false
+	},
+
+	"content_scripts": [{
+		"js": [ "content.js" ],
+		"matches": [ "<all_urls>" ],
+		"run_at": "document_start"
+	}],
+
+	"browser_action": {
+		"default_popup": "popup.html",
+		"default_icon": {
+			"16": "images/icon.png",
+			"19": "images/icon.png",
+			"32": "images/icon.png",
+			"48": "images/icon.png",
+			"72": "images/icon.png"
+		}
+	},
+
+	"permissions": [ "<all_urls>", "nativeMessaging", "storage", "webNavigation" ]
+}

safari/Legacy iOS/KagiForSafari Extension/Resources/popup.js

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+document.getElementById("footerLink").onclick = function() {
+	window.open("https://kagi.com/settings?p=user_details#sessionlink");
+};
+
+chrome.storage.local.get("privateSessionLink", function(value) {
+	var privateSessionLink = value.privateSessionLink;
+	if (typeof(privateSessionLink) !== "undefined") {
+		document.getElementById('privateSessionLink').value = value.privateSessionLink;
+	}
+});
+
+document.getElementById('privateSessionLink').addEventListener('input', function (evt) {
+	chrome.storage.local.set({ privateSessionLink: document.getElementById('privateSessionLink').value});
+});

safari/Legacy iOS/KagiForSafari Extension/SafariWebExtensionHandler.swift

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+//
+//  SafariWebExtensionHandler.swift
+//  KagiForSafari Extension
+//
+//  Created by apples on 31.01.2022.
+//
+
+import SafariServices
+import os.log
+
+class SafariWebExtensionHandler: NSObject, NSExtensionRequestHandling {
+	func beginRequest(with context: NSExtensionContext) {
+		let response = NSExtensionItem()
+		context.completeRequest(returningItems: [response], completionHandler: nil)
+	}
+}