1 files changed, 76 insertions, 0 deletions
diff --git a/app/src/main/kotlin/com/pitchedapps/frost/facebook/FbUrlFormatter.kt b/app/src/main/kotlin/com/pitchedapps/frost/facebook/FbUrlFormatter.kt
new file mode 100644
index 00000000..1090f1f3
--- /dev/null
+++ b/app/src/main/kotlin/com/pitchedapps/frost/facebook/FbUrlFormatter.kt
@@ -0,0 +1,76 @@
+package com.pitchedapps.frost.facebook
+
+/**
+ * Created by Allan Wang on 2017-07-07.
+ *
+ * Custom url builder so we can easily test it without the Android framework
+ */
+val String.formattedFbUrl: String
+    get() = FbUrlFormatter(this).toString()
+
+class FbUrlFormatter(url: String) {
+    val queries = mutableMapOf<String, String>()
+    val cleaned: String
+
+    init {
+        var cleanedUrl = url
+        discardable.forEach { cleanedUrl = cleanedUrl.replace(it, "") }
+        decoder.forEach { (k, v) -> cleanedUrl = cleanedUrl.replace(k, v) }
+        val qm = cleanedUrl.indexOf("?")
+        if (qm > -1) {
+            cleanedUrl.substring(qm + 1).split("&").forEach {
+                val p = it.split("=")
+                queries.put(p[0], p.elementAtOrNull(1) ?: "")
+            }
+            cleanedUrl = cleanedUrl.substring(0, qm)
+        }
+        discardableQueries.forEach { queries.remove(it) }
+        if (cleanedUrl.startsWith("#!/")) cleanedUrl = cleanedUrl.substring(2)
+        if (cleanedUrl.startsWith("/")) cleanedUrl = FB_URL_BASE + cleanedUrl.substring(1)
+        cleaned = cleanedUrl
+    }
+
+    override fun toString(): String {
+        val builder = StringBuilder()
+        builder.append(cleaned)
+        if (queries.isNotEmpty()) {
+            builder.append("?")
+            queries.forEach { (k, v) -> builder.append("$k=$v&") }
+        }
+        return builder.removeSuffix("&").toString()
+    }
+
+    fun toLogList(): List<String> {
+        val list = mutableListOf(cleaned)
+        queries.forEach { (k, v) -> list.add("- $k\t=\t$v") }
+        return list
+    }
+
+    companion object {
+        /**
+         * Items here are explicitly removed from the url
+         * Taken from FaceSlim
+         * https://github.com/indywidualny/FaceSlim/blob/master/app/src/main/java/org/indywidualni/fblite/util/Miscellany.java
+         */
+        @JvmStatic val discardable = arrayOf(
+                "http://lm.facebook.com/l.php?u=",
+                "https://lm.facebook.com/l.php?u=",
+                "http://m.facebook.com/l.php?u=",
+                "https://m.facebook.com/l.php?u=",
+                "http://touch.facebook.com/l.php?u=",
+                "https://touch.facebook.com/l.php?u="
+        )
+
+        @JvmStatic val discardableQueries = arrayOf("ref", "refid")
+
+        @JvmStatic val decoder = mapOf(
+                "%3C" to "<", "%3E" to ">", "%23" to "#", "%25" to "%",
+                "%7B" to "{", "%7D" to "}", "%7C" to "|", "%5C" to "\\",
+                "%5E" to "^", "%7E" to "~", "%5B" to "[", "%5D" to "]",
+                "%60" to "`", "%3B" to ";", "%2F" to "/", "%3F" to "?",
+                "%3A" to ":", "%40" to "@", "%3D" to "=", "%26" to "&",
+                "%24" to "$", "%2B" to "+", "%22" to "\"", "%2C" to ",",
+                "%20" to " "
+        )
+    }
+}
+\ No newline at end of file