support tags in quoted attribute value

2024-03-27 00:47:35 +09:00
parent bffb9f3778
commit a71ce69cab
3 changed files with 400 additions and 209 deletions
@@ -0,0 +1,81 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.previews
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class MetaTagsParserTest {
+    @Test
+    fun testParse() {
+        val input =
+            """<html>
+            |  <head>
+            |    <meta charset="utf-8">
+            |    <meta http-equiv="content-type" content="text/html; charset=utf-8">
+            |    <meta property="og:title" content=title>
+            |    <meta property="og:description" content='description'>
+            |    <meta property="og:image" content="https://example.com/img/foo.png">
+            |    <!-- edge cases -->
+            |    <meta
+            |       name="newline"
+            |       content="newline"
+            |    >
+            |    <meta name="space before gt"    >
+            |    <meta name     ="space before =">
+            |    <meta name=    "space after =">
+            |    <META NAME="CAPITAL">
+            |    <meta name="character reference" content="&lt;meta&gt;">
+            |    <meta name="attr value with end of head doesn't harm" content="<head>bang!</head>">
+            |    <meta name="ignore tags with duplicated attr" name="dup">
+            |  </head>
+            |  <body>
+            |    <meta name="ignore meta tags in body">
+            |  </body>
+            |</html>
+            """.trimMargin()
+
+        val exp =
+            listOf(
+                listOf("charset" to "utf-8"),
+                listOf("http-equiv" to "content-type", "content" to "text/html; charset=utf-8"),
+                listOf("property" to "og:title", "content" to "title"),
+                listOf("property" to "og:description", "content" to "description"),
+                listOf("property" to "og:image", "content" to "https://example.com/img/foo.png"),
+                listOf("name" to "newline", "content" to "newline"),
+                listOf("name" to "space before gt"),
+                listOf("name" to "space before ="),
+                listOf("name" to "space after ="),
+                listOf("name" to "CAPITAL"),
+                listOf("name" to "character reference", "content" to "<meta>"),
+                listOf("name" to "attr value with end of head doesn't harm", "content" to "<head>bang!</head>"),
+            )
+
+        val metaTags = MetaTagsParser.parse(input).toList()
+        println(metaTags)
+        assertEquals(exp.size, metaTags.size)
+        metaTags.zip(exp).forEach { (meta, expAttrs) ->
+            expAttrs.forEach { (name, expValue) ->
+                assertEquals(expValue, meta.attr(name))
+            }
+        }
+    }
+}