1 files changed, 85 insertions, 0 deletions
diff --git a/app/src/main/kotlin/com/pitchedapps/frost/parsers/MessageParser.kt b/app/src/main/kotlin/com/pitchedapps/frost/parsers/MessageParser.kt
new file mode 100644
index 00000000..dbe2c0bb
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+++ b/app/src/main/kotlin/com/pitchedapps/frost/parsers/MessageParser.kt
@@ -0,0 +1,85 @@
+package com.pitchedapps.frost.parsers
+
+import com.pitchedapps.frost.facebook.formattedFbUrl
+import com.pitchedapps.frost.facebook.formattedFbUrlCss
+import com.pitchedapps.frost.utils.L
+import org.apache.commons.text.StringEscapeUtils
+import org.jsoup.Jsoup
+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<Triple<List<FrostThread>, FrostLink?, List<FrostLink>>> by MessageParserImpl()
+
+data class FrostThread(val id: Int, val img: String, val title: String, val time: Long, val url: String, val unread: Boolean, val content: String?)
+
+data class FrostLink(val text: String, val href: String)
+
+private class MessageParserImpl : FrostParserBase<Triple<List<FrostThread>, FrostLink?, List<FrostLink>>>() {
+
+    override fun parseImpl(text: String): Triple<List<FrostThread>, FrostLink?, List<FrostLink>>? {
+        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>")
+        val body = Jsoup.parseBodyFragment("<div $content")
+        val threadList = body.getElementById("threadlist_rows")
+        val threads: List<FrostThread> = threadList.getElementsByAttributeValueContaining("id", "thread_fbid_")
+                .mapNotNull { parseMessage(it) }
+        val seeMore = parseLink(body.getElementById("see_older_threads"))
+        val extraLinks = threadList.nextElementSibling().select("a")
+                .mapNotNull { parseLink(it) }
+        return Triple(threads, seeMore, extraLinks)
+    }
+
+    private fun parseMessage(element: Element): FrostThread? {
+        val a = element.getElementsByTag("a").first() ?: return null
+        val abbr = element.getElementsByTag("abbr")
+        println(abbr.attr("data-store"))
+        val epoch = FrostRegex.epoch.find(abbr.attr("data-store"))
+                ?.groupValues?.getOrNull(1)?.toLongOrNull() ?: -1L
+        //fetch id
+        val id = FrostRegex.messageNotifId.find(element.id())
+                ?.groupValues?.getOrNull(1)?.toLongOrNull() ?: System.currentTimeMillis()
+        val content = element.select("span.snippet").firstOrNull()?.text()?.trim()
+        //fetch convo pic
+        val p = element.select("i.img[style*=url]")
+        val pUrl = FrostRegex.profilePicture.find(p.attr("style"))?.groups?.get(1)?.value?.formattedFbUrl ?: ""
+        L.v("url", a.attr("href"))
+        return FrostThread(
+                id = id.toInt(),
+                img = pUrl.formattedFbUrlCss,
+                title = a.text(),
+                time = epoch,
+                url = a.attr("href").formattedFbUrlCss,
+                unread = !element.hasClass("acw"),
+                content = content
+        )
+    }
+
+    private fun parseLink(element: Element?): FrostLink? {
+        val a = element?.getElementsByTag("a")?.first() ?: return null
+        return FrostLink(a.text(), a.attr("href"))
+    }
+
+    override fun debugImpl(data: Triple<List<FrostThread>, FrostLink?, List<FrostLink>>, result: MutableList<String>) {
+        result.addAll(data.first.map { it.toString() })
+        result.add("See more link:")
+        result.add("\t${data.second}")
+        result.addAll(data.third.map { it.toString() })
+    }
+}