From 7d4c1015d58b9038a49ce926b55b80ac35721e34 Mon Sep 17 00:00:00 2001
From: 6543 <6543@obermui.de>
Date: Tue, 22 May 2018 01:30:35 +0200
Subject: [PATCH 1/4] switch checks

---
 src/func/iso_extract | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/func/iso_extract b/src/func/iso_extract
index ab6c6df..e5100f7 100755
--- a/src/func/iso_extract
+++ b/src/func/iso_extract
@@ -15,17 +15,18 @@ function iso_extract() {
 		return 10
 	}
 
+	iso_extr_dir="$2"
+	[ -d "$iso_extr_dir" ] || {
+		echo "### ERROR ### iso_extract: aim directory not exist!"
+		return 12
+	}
+
 	iso_source="$1"
 	[ -f "$iso_source" ] || {
 		echo "### ERROR ### iso_extract: ISO \"$iso_source\" not exist!"
 		return 11
 	}
 
-	iso_extr_dir="$2"
-	[ -d "$iso_extr_dir" ] || {
-		echo "### ERROR ### iso_extract: aim directory not exist!"
-		return 12
-	}
 
 	#mace tmp mountpoint
 	tmpdir="`mktemp -d`"

From 2a081ad5175e835ef079cc90043297b8de3950f0 Mon Sep 17 00:00:00 2001
From: 6543 <6543@obermui.de>
Date: Tue, 22 May 2018 01:34:32 +0200
Subject: [PATCH 2/4] add logic

---
 src/func/iso_extract | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/func/iso_extract b/src/func/iso_extract
index e5100f7..46a8432 100755
--- a/src/func/iso_extract
+++ b/src/func/iso_extract
@@ -21,10 +21,17 @@ function iso_extract() {
 		return 12
 	}
 
+	iso_source_is_url=false
 	iso_source="$1"
 	[ -f "$iso_source" ] || {
-		echo "### ERROR ### iso_extract: ISO \"$iso_source\" not exist!"
-		return 11
+		#if it is an url...
+		if [ url-exist ]; then
+			iso_source_is_url=true
+			#dl to tmp + set iso_source
+		else
+			echo "### ERROR ### iso_extract: ISO \"$iso_source\" not exist!"
+			return 11
+		fi
 	}
 
 
@@ -42,6 +49,7 @@ function iso_extract() {
 	#clear tmp mountpoint
 	umount "$iso_source"
 	rm -r "$tmpdir"
+	[ "$iso_source_is_url" == "true" ] && rm "$iso_source"
 	tmpdir=
 
 	echo "done"

From 05bf2a4cdf6d0abfeac3043b73bf081f37cca164 Mon Sep 17 00:00:00 2001
From: 6543 <6543@obermui.de>
Date: Tue, 22 May 2018 01:38:30 +0200
Subject: [PATCH 3/4] add new sub func

---
 src/func/check_url | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 src/func/check_url

diff --git a/src/func/check_url b/src/func/check_url
new file mode 100644
index 0000000..53b23e0
--- /dev/null
+++ b/src/func/check_url
@@ -0,0 +1,20 @@
+#!/bin/bash
+#remaster lib
+[ -d "<LIBDIR>" ] || { echo "LIBDIR not exist"; exit 1; }
+
+#check_url [URL]
+function check_url() {
+    URL="$1"
+    if [[ `wget -S --spider "$URL"  2>&1 | grep 'HTTP/1.1 200 OK'` ]]; then
+      echo "true"
+      return 0
+    else
+      echo "false"
+      return 1
+    fi
+}
+
+#this func is standalone executable
+[ -n "$1" ] && {
+    check_url $@
+}

From 32cfb2a7a43381d1ba45a106e95a2b62ea357f60 Mon Sep 17 00:00:00 2001
From: 6543 <6543@obermui.de>
Date: Tue, 22 May 2018 01:47:10 +0200
Subject: [PATCH 4/4] finish

---
 src/func/iso_extract | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/func/iso_extract b/src/func/iso_extract
index 46a8432..d89ff28 100755
--- a/src/func/iso_extract
+++ b/src/func/iso_extract
@@ -21,13 +21,13 @@ function iso_extract() {
 		return 12
 	}
 
-	iso_source_is_url=false
 	iso_source="$1"
 	[ -f "$iso_source" ] || {
 		#if it is an url...
-		if [ url-exist ]; then
-			iso_source_is_url=true
+		if [ "`check_url $iso_source`" == "true" ]; then
 			#dl to tmp + set iso_source
+			iso_tmp="`mktemp --suffix=.iso`"; rm "$iso_tmp"
+			wget -O "$iso_tmp" "$iso_source"
 		else
 			echo "### ERROR ### iso_extract: ISO \"$iso_source\" not exist!"
 			return 11
@@ -49,7 +49,7 @@ function iso_extract() {
 	#clear tmp mountpoint
 	umount "$iso_source"
 	rm -r "$tmpdir"
-	[ "$iso_source_is_url" == "true" ] && rm "$iso_source"
+	[ -n "$iso_tmp" ] && rm "$iso_tmp"
 	tmpdir=
 
 	echo "done"