useful package

[distro-setup] / filesystem / etc / apt / detect-http-proxy

diff --git a/filesystem/etc/apt/detect-http-proxy b/filesystem/etc/apt/detect-http-proxy
index 7a97b95c0c11b6781f013d1f3a608b41ce129e46..4bb8f3c8248c18e5b4f983031a43f7e73e333cf5 100755 (executable)
--- a/filesystem/etc/apt/detect-http-proxy
+++ b/filesystem/etc/apt/detect-http-proxy
@@ -3,17 +3,29 @@
 # http://askubuntu.com/questions/53443/how-do-i-ignore-a-proxy-if-not-available
 # altered because testing a down proxy takes like 2 seconds,
 # and we would do it like 100 times in a row. so cache a failed result
-# locally for 1 hour. Also, using newer option based on man apt.conf.
+# locally for 10 minutes. Also, using newer option based on man apt.conf.
+#
+# Once when I was testing, it seemed I needed to have it output
+# DIRECT after toutputing the proxy url
 proxy_host=faiserver
 proxy_port=3142
-proxy_url=http://$proxy_host:$proxy_port
+proxy_url=http://$proxy_host:$proxy_port/
 f=/tmp/apt_proxy_fail
-if [[ ! -r $f ]] \
-       || (( $(( $(date +%s) - $(stat -c %Y $f ) )) > 60*60 )); then
-    if host $proxy_host && nc -z $proxy_host $proxy_port; then
-        echo $proxy_url
-    else
+if [[ ! -w /tmp ]]; then
+    echo DIRECT
+    exit 0
+fi
+modtime=$(stat -c %Y $f 2>/dev/null ) ||:
+if [[ $modtime ]] && (( $(( $(date +%s) - modtime  )) < 60*10 )); then
+    echo DIRECT
+    exit 0
+else
+    rm -f $f
+fi
+if getent hosts $proxy_host &>/dev/null && timeout 1 nc -z $proxy_host $proxy_port &>/dev/null; then
+    echo $proxy_url
+else
+    if [[ ! -e $f || -w $f ]]; then
         touch $f
     fi
 fi
-echo DIRECT