fileinfo: Backport svg detection patch

Author: usarise

ext/fileinfo/data_file.c

@@ -78,3 +78,23 @@ diff -ur Magdir/securitycerts Magdir.orig/securitycerts
  0	belong	0xedfeedfe	Sun 'jks' Java Keystore File data
 -
 -0	string \0volume_key	volume_key escrow packet
+diff -ur Magdir/sgml Magdir.orig/sgml
+--- Magdir/sgml	2023-08-09 16:00:55.807784619 +0000
++++ Magdir.orig/sgml	2021-02-23 00:49:24.000000000 +0000
+@@ -3,14 +3,13 @@
+ # $File: sgml,v 1.42 2020/12/12 20:01:47 christos Exp $
+ # Type:	SVG Vectorial Graphics
+ # From:	Noel Torres <tecnico@ejerciciosresueltos.com>
+-0	string/bt		\<?xml\ version=
++0	string		\<?xml\ version=
+ >14	regex		['"\ \t]*[0-9.]+['"\ \t]*
+ >>19	search/4096	\<svg			SVG Scalable Vector Graphics image
+-!:strength +50
+ !:mime	image/svg+xml
+ >>19	search/4096	\<gnc-v2		GnuCash file
+ !:mime	application/x-gnucash
+-0	string/bt		\<svg			SVG Scalable Vector Graphics image
++0	string		\<svg			SVG Scalable Vector Graphics image
+ !:mime	image/svg+xml
+ 
+ # Sitemap file

ext/fileinfo/magicdata.patch

@@ -0,0 +1,14 @@
+--TEST--
+Bug GH-11891: fileinfo returns text/xml for some svg files
+--EXTENSIONS--
+fileinfo
+--FILE--
+<?php
+var_dump(
+    (new \finfo(\FILEINFO_MIME_TYPE))->file(
+        __DIR__ . '/bug-gh11891.svg',
+    ),
+);
+?>
+--EXPECT--
+string(13) "image/svg+xml"

ext/fileinfo/tests/bug-gh11891.phpt

@@ -30298,13 +30298,14 @@
 # $File: sgml,v 1.42 2020/12/12 20:01:47 christos Exp $
 # Type:	SVG Vectorial Graphics
 # From:	Noel Torres <tecnico@ejerciciosresueltos.com>
-0	string		\<?xml\ version=
+0	string/bt		\<?xml\ version=
 >14	regex		['"\ \t]*[0-9.]+['"\ \t]*
 >>19	search/4096	\<svg			SVG Scalable Vector Graphics image
+!:strength +50
 !:mime	image/svg+xml
 >>19	search/4096	\<gnc-v2		GnuCash file
 !:mime	application/x-gnucash
-0	string		\<svg			SVG Scalable Vector Graphics image
+0	string/bt		\<svg			SVG Scalable Vector Graphics image
 !:mime	image/svg+xml
 
 # Sitemap file

ext/fileinfo/tests/bug-gh11891.svg

@@ -30298,13 +30298,14 @@
 # $File: sgml,v 1.42 2020/12/12 20:01:47 christos Exp $
 # Type:	SVG Vectorial Graphics
 # From:	Noel Torres <tecnico@ejerciciosresueltos.com>
-0	string		\<?xml\ version=
+0	string/bt		\<?xml\ version=
 >14	regex		['"\ \t]*[0-9.]+['"\ \t]*
 >>19	search/4096	\<svg			SVG Scalable Vector Graphics image
+!:strength +50
 !:mime	image/svg+xml
 >>19	search/4096	\<gnc-v2		GnuCash file
 !:mime	application/x-gnucash
-0	string		\<svg			SVG Scalable Vector Graphics image
+0	string/bt		\<svg			SVG Scalable Vector Graphics image
 !:mime	image/svg+xml
 
 # Sitemap file