Add check website sh script

.gitignore

@@ -36,4 +36,7 @@ REAME.html
 htmlcov
 man
 .project
-.pydevproject
+.pydevproject
+src/supervision/website/config.py
+src/supervision/website/reports
+src/supervision/website/utils/check_hosts.sh

src/supervision/website/TODO.txt

@@ -0,0 +1,23 @@
+
+a) Un fichier de configuration avec les HOSTS
+
+b) Un script qui génère le script SH avec HOSTS et TIMEOUT only (utiliser la syntaxe python simple avec %(var_name)s), 
+   monitoring du temps, wget status, archive anciens fichier pour étudier le changement de status
+   wget http://www.asilax.fr --no-check-certificate --timeout=5 -S -q -O - 2>&1  | awk '/^  HTTP/{print $2}'
+   http://www.sectorfej.net/2012/03/24/simple-web-server-availability-monitoring-with-cron-bash-and-wget/
+
+   TODO : sauvegarde ancien status si nécessaire
+          écrire nouveau status avec "$HOST;$RESPONSE;$START;$END" 
+
+c) Un script python qui étudie les fichiers de log :
+   - vérifie le code de retour
+   - détermine le status (cf lien bash) avec le SLOW_THRESHOLD
+   - génère un rapport texte, un rapport HTML, envoi des mails
+
+d) Documentation du README
+
+e) Post du rapport dans un Plone, via une configuration dans le fichier de configuration
+
+f) Support i18n pour les rapports, via une entrée dans le fichier de configuration
+
+g) Tests ?

src/supervision/website/config.py.sample

@@ -0,0 +1,18 @@
+# List of websites to check
+WEBSITE_URIS = [
+	'http://www.yahoo.com',
+	'https://www.google.com',
+	'http://www.france.fr/nous-contacter'
+]
+
+# Requests timeout in second (used by wget calls)
+TIMEOUT = 10
+
+# If response time, in seconds, is greater than SLOW_THRESHOLD, then the website status will be SLOW
+SLOW_THRESHOLD = 7
+
+# Accepted HTTP status codes
+OK_STATUSES = ['200']
+
+# Reports folder, where status files and reports will be added
+REPORTS_PATH = "/tmp/reports"

src/supervision/website/utils/check_host_generate_script.py

@@ -0,0 +1,19 @@
+import sys
+from supervision.website.config import *
+
+def generate_sh_script():
+	# Generate the sh script using our custom configuration
+
+	with open('check_hosts.sh.tmpl', 'r') as f:
+		script = f.read()
+
+	script = script.replace('TO_BE_REPLACE_TIMEOUT', str(TIMEOUT))
+	script = script.replace('TO_BE_REPLACE_HOSTS', '\n'.join((['"%s" \\' % uri for uri in WEBSITE_URIS])))
+	script = script.replace('TO_BE_REPLACE_REPORTS_PATH', REPORTS_PATH)
+
+	with open('check_hosts.sh', 'w') as f:
+		f.write(script)
+
+
+if __name__ == '__main__':
+	generate_sh_script()

src/supervision/website/utils/check_hosts.sh.tmpl

@@ -0,0 +1,42 @@
+#!/bin/bash
+# Thanks to http://www.sectorfej.net/2012/03/24/simple-web-server-availability-monitoring-with-cron-bash-and-wget/
+
+HOSTS=( \
+    TO_BE_REPLACE_HOSTS
+    )
+
+TIMEOUT=TO_BE_REPLACE_TIMEOUT
+
+REPORT_DIRECTORY="TO_BE_REPLACE_REPORTS_PATH"
+CURRENT_STATUS_FILE="$REPORT_DIRECTORY/sitemonitor.current.status"
+PREVIOUS_STATUS_FILE="$REPORT_DIRECTORY/sitemonitor.previous.status"
+
+# Create files structure if needed
+mkdir -p $REPORT_DIRECTORY
+if [ ! -e $CURRENT_STATUS_FILE ]; then
+    touch $CURRENT_STATUS_FILE
+fi
+if [ ! -e $PREVIOUS_STATUS_FILE ]; then
+    touch $PREVIOUS_STATUS_FILE
+fi
+
+# Backup current status file and remove his content
+mv -f $CURRENT_STATUS_FILE $PREVIOUS_STATUS_FILE
+touch $CURRENT_STATUS_FILE
+
+for HOST in "${HOSTS[@]}"
+do
+    START=$(date +%s)
+    RESPONSE=`wget $HOST --no-check-certificate --timeout=$TIMEOUT -S -q -O - 2>&1 | \
+                  awk '/^  HTTP/{print \$2}'`
+    END=$(date +%s)
+    #DIFF=$(( $END - $START ))
+
+    if [ -z "$RESPONSE" ]; then
+        # Zero-length ("null") string variable
+        RESPONSE="0"
+    fi
+
+    echo $HOST";"$RESPONSE";"$START";"$END >> $CURRENT_STATUS_FILE
+
+done