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package com.pitchedapps.frost.parsers
import com.pitchedapps.frost.dbflow.CookieModel
import com.pitchedapps.frost.facebook.*
import com.pitchedapps.frost.services.NotificationContent
import com.pitchedapps.frost.utils.L
import org.apache.commons.text.StringEscapeUtils
import org.jsoup.Jsoup
import org.jsoup.nodes.Document
import org.jsoup.nodes.Element
/**
* Created by Allan Wang on 2017-10-06.
*
* In Facebook, messages are passed through scripts and loaded into view via react afterwards
* We can parse out the content we want directly and load it ourselves
*
*/
object MessageParser : FrostParser<FrostMessages> by MessageParserImpl()
data class FrostMessages(val threads: List<FrostThread>,
val seeMore: FrostLink?,
val extraLinks: List<FrostLink>
) : ParseNotification {
override fun toString() = StringBuilder().apply {
append("FrostMessages {\n")
append(threads.toJsonString("threads", 1))
append("\tsee more: $seeMore\n")
append(extraLinks.toJsonString("extra links", 1))
append("}")
}.toString()
override fun getUnreadNotifications(data: CookieModel) =
threads.filter(FrostThread::unread).map {
with(it) {
NotificationContent(
data = data,
notifId = Math.abs(id.toInt()),
href = url,
title = title,
text = content ?: "",
timestamp = time,
profileUrl = img
)
}
}
}
/**
* [id] user/thread id, or current time fallback
* [img] parsed url for profile img
* [time] time of message
* [url] link to thread
* [unread] true if image is unread, false otherwise
* [content] optional string for thread
*/
data class FrostThread(val id: Long,
val img: String,
val title: String,
val time: Long,
val url: String,
val unread: Boolean,
val content: String?)
private class MessageParserImpl : FrostParserBase<FrostMessages>(true) {
override val url = FbItem.MESSAGES.url
override fun textToDoc(text: String): Document? {
var content = StringEscapeUtils.unescapeEcmaScript(text)
val begin = content.indexOf("id=\"threadlist_rows\"")
if (begin <= 0) {
L.d("Threadlist not found")
return null
}
content = content.substring(begin)
val end = content.indexOf("</script>")
if (end <= 0) {
L.d("Script tail not found")
return null
}
content = content.substring(0, end).substringBeforeLast("</div>")
return Jsoup.parseBodyFragment("<div $content")
}
override fun parseImpl(doc: Document): FrostMessages? {
val threadList = doc.getElementById("threadlist_rows") ?: return null
val threads: List<FrostThread> = threadList.getElementsByAttributeValueContaining("id", "thread_fbid_")
.mapNotNull(this::parseMessage)
val seeMore = parseLink(doc.getElementById("see_older_threads"))
val extraLinks = threadList.nextElementSibling().select("a")
.mapNotNull(this::parseLink)
return FrostMessages(threads, seeMore, extraLinks)
}
private fun parseMessage(element: Element): FrostThread? {
val a = element.getElementsByTag("a").first() ?: return null
val abbr = element.getElementsByTag("abbr")
val epoch = FB_EPOCH_MATCHER.find(abbr.attr("data-store"))[1]?.toLongOrNull() ?: -1L
//fetch id
val id = FB_MESSAGE_NOTIF_ID_MATCHER.find(element.id())[1]?.toLongOrNull()
?: System.currentTimeMillis()
val content = element.select("span.snippet").firstOrNull()?.text()?.trim()
val img = element.getInnerImgStyle()
L.v("url", a.attr("href"))
return FrostThread(
id = id,
img = img,
title = a.text(),
time = epoch,
url = a.attr("href").formattedFbUrl,
unread = !element.hasClass("acw"),
content = content
)
}
}
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