Improve FreshRSS image preview parsing (#669)

* Unescape & in image URLs

* Parse FreshRSS content for first image

app/src/main/java/com/capyreader/app/ui/articles/ArticleRow.kt

@@ -58,6 +58,7 @@ import com.capyreader.app.ui.fixtures.ArticleSample
 import com.capyreader.app.ui.theme.CapyTheme
 import com.jocmp.capy.Article
 import com.jocmp.capy.MarkRead
+import com.jocmp.capy.common.escapingSpecialXMLCharacters
 import java.net.URL
 import java.time.LocalDateTime
 import java.time.ZoneOffset

capy/src/main/java/com/jocmp/capy/accounts/reader/ItemParsedImageUrl.kt

@@ -0,0 +1,17 @@
+package com.jocmp.capy.accounts.reader
+
+import com.jocmp.capy.common.unescapingHTMLCharacters
+import com.jocmp.readerclient.Item
+import org.jsoup.Jsoup
+
+internal fun parsedImageURL(item: Item): String? {
+    val imageHref = item.image?.href
+
+    if (imageHref != null) {
+        return imageHref.unescapingHTMLCharacters
+    }
+
+    val content = item.summary.content
+
+    return Jsoup.parse(content).selectFirst("img")?.attr("src")
+}

capy/src/main/java/com/jocmp/capy/accounts/reader/ReaderAccountDelegate.kt

@@ -348,7 +348,7 @@ internal class ReaderAccountDelegate(
                     extracted_content_url = null,
                     summary = Jsoup.parse(item.summary.content).text(),
                     url = item.canonical.firstOrNull()?.href,
-                    image_url = item.image?.href,
+                    image_url = parsedImageURL(item),
                     published_at = item.published
                 )
 

capy/src/main/java/com/jocmp/capy/common/StringXMLCharactersExt.kt → capy/src/main/java/com/jocmp/capy/common/StringCharactersExt.kt

@@ -21,3 +21,11 @@ val String.escapingSpecialXMLCharacters: String
 
         return escaped
     }
+
+val String.unescapingHTMLCharacters: String
+    get() {
+        return this
+            .replace("&", "&")
+            .replace("&lt;", "<")
+            .replace("&gt;", ">")
+    }