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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 " "
)
}
}
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