From 9b9d7735920a8f949996751bbca2e39f95a0f852 Mon Sep 17 00:00:00 2001
From: Allan Wang <me@allanwang.ca>
Date: Mon, 30 Dec 2019 10:41:48 -0800
Subject: Use mbasic for search parser

---
 .../com/pitchedapps/frost/facebook/FbConst.kt      |  1 +
 .../com/pitchedapps/frost/facebook/FbItem.kt       | 12 ++++++--
 .../frost/facebook/parsers/SearchParser.kt         | 35 ++++++++++++++--------
 .../frost/facebook/parsers/FbParseTest.kt          |  1 -
 4 files changed, 33 insertions(+), 16 deletions(-)

(limited to 'app')

diff --git a/app/src/main/kotlin/com/pitchedapps/frost/facebook/FbConst.kt b/app/src/main/kotlin/com/pitchedapps/frost/facebook/FbConst.kt
index 8139bebc..f0f6ca7e 100644
--- a/app/src/main/kotlin/com/pitchedapps/frost/facebook/FbConst.kt
+++ b/app/src/main/kotlin/com/pitchedapps/frost/facebook/FbConst.kt
@@ -25,6 +25,7 @@ const val FBCDN_NET = "fbcdn.net"
 const val WWW_FACEBOOK_COM = "www.$FACEBOOK_COM"
 const val FACEBOOK_BASE_COM = "m.$FACEBOOK_COM"
 const val FB_URL_BASE = "https://$FACEBOOK_BASE_COM/"
+const val FB_URL_MBASIC_BASE = "https://mbasic.$FACEBOOK_COM/"
 fun profilePictureUrl(id: Long) = "https://graph.facebook.com/$id/picture?type=large"
 const val FB_LOGIN_URL = "${FB_URL_BASE}login"
 const val FB_HOME_URL = "${FB_URL_BASE}home.php"
diff --git a/app/src/main/kotlin/com/pitchedapps/frost/facebook/FbItem.kt b/app/src/main/kotlin/com/pitchedapps/frost/facebook/FbItem.kt
index 265cfbe5..4df99878 100644
--- a/app/src/main/kotlin/com/pitchedapps/frost/facebook/FbItem.kt
+++ b/app/src/main/kotlin/com/pitchedapps/frost/facebook/FbItem.kt
@@ -32,7 +32,8 @@ enum class FbItem(
     @StringRes val titleId: Int,
     val icon: IIcon,
     relativeUrl: String,
-    val fragmentCreator: () -> BaseFragment = ::WebFragment
+    val fragmentCreator: () -> BaseFragment = ::WebFragment,
+    prefix: String = FB_URL_BASE
 ) : EnumBundle<FbItem> {
 
     ACTIVITY_LOG(R.string.activity_log, GoogleMaterial.Icon.gmd_list, "me/allactivity"),
@@ -57,11 +58,16 @@ enum class FbItem(
     /**
      * Note that this url only works if a query (?q=) is provided
      */
-    _SEARCH(R.string.kau_search, GoogleMaterial.Icon.gmd_search, "search/top"),
+    _SEARCH(
+        R.string.kau_search,
+        GoogleMaterial.Icon.gmd_search,
+        "search/top",
+        prefix = FB_URL_MBASIC_BASE
+    ),
     SETTINGS(R.string.settings, GoogleMaterial.Icon.gmd_settings, "settings"),
     ;
 
-    val url = "$FB_URL_BASE$relativeUrl"
+    val url = "$prefix$relativeUrl"
 
     val isFeed: Boolean
         get() = when (this) {
diff --git a/app/src/main/kotlin/com/pitchedapps/frost/facebook/parsers/SearchParser.kt b/app/src/main/kotlin/com/pitchedapps/frost/facebook/parsers/SearchParser.kt
index b044ee58..e4339d4f 100644
--- a/app/src/main/kotlin/com/pitchedapps/frost/facebook/parsers/SearchParser.kt
+++ b/app/src/main/kotlin/com/pitchedapps/frost/facebook/parsers/SearchParser.kt
@@ -76,22 +76,33 @@ private class SearchParserImpl : FrostParserBase<FrostSearches>(false) {
 
     override var nameRes = FbItem._SEARCH.titleId
 
-    override val url = "${FbItem._SEARCH.url}?q=a"
+    override val url = "${FbItem._SEARCH.url}?q=google"
 
     override fun parseImpl(doc: Document): FrostSearches? {
         val container: Element = doc.getElementById("BrowseResultsContainer")
             ?: doc.getElementById("root")
             ?: return null
-        /**
-         *
-         * Removed [data-store*=result_id]
-         */
-        return FrostSearches(container.select("a.touchable[href]").filter(Element::hasText).map {
-            FrostSearch.create(
-                it.attr("href").formattedFbUrl,
-                it.select("._uoi").first()?.text() ?: "",
-                it.select("._1tcc").first()?.text()
-            )
-        }.filter { it.title.isNotBlank() })
+
+        return FrostSearches(container.select("table[role=presentation]").mapNotNull { el ->
+            // Our assumption is that search entries start with an image, followed by general info
+            // There may be other <td />s, but we will not be parsing them
+            // Furthermore, the <td /> entry wraps a link, containing all the necessary info
+            val a = el.select("td").getOrNull(1)?.selectFirst("a") ?: return@mapNotNull null
+            val url =
+                a.attr("href").takeIf { it.isNotEmpty() }?.formattedFbUrl ?: return@mapNotNull null
+            // Currently, children should all be <div /> elements, where the first entry is the name/title
+            // And the other entries are additional info.
+            // There are also cases of nested tables, eg for the "join" button in groups.
+            // Those elements have <span /> texts, so we will filter by div to ignore those
+            val texts = a.children().filter { it.tagName() == "div" && it.hasText() }
+            val title = texts.firstOrNull()?.text() ?: return@mapNotNull null
+            val info = texts.takeIf { it.size > 1 }?.last()?.text()
+            L.e { a }
+            create(
+                href = url,
+                title = title,
+                description = info
+            ).also { L.e { it } }
+        })
     }
 }
diff --git a/app/src/test/kotlin/com/pitchedapps/frost/facebook/parsers/FbParseTest.kt b/app/src/test/kotlin/com/pitchedapps/frost/facebook/parsers/FbParseTest.kt
index 0be29c2b..703c2074 100644
--- a/app/src/test/kotlin/com/pitchedapps/frost/facebook/parsers/FbParseTest.kt
+++ b/app/src/test/kotlin/com/pitchedapps/frost/facebook/parsers/FbParseTest.kt
@@ -71,7 +71,6 @@ class FbParseTest {
     @Test
     fun messageUser() = MessageParser.queryUser(COOKIE, "allan").test("allan query")
 
-    @Ignore("No longer works as search results don't appear in html")
     @Test
     fun search() = SearchParser.test()
 
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