Refactor function CLI

bin/probe_saml_idp.sh

@@ -380,8 +380,10 @@ for http_binding in $http_bindings; do
 	fi
 
 	# probe the endpoint
-	output=$( probe_saml2_idp_endpoint -v \
+	output=$( probe_saml2_idp_endpoint \
 		-t $connect_timeout -m $max_time -r $max_redirs \
+		-V "$tmp_subdir/curl_trace.txt" \
+		-o "$tmp_subdir/idp_http_response.html" \
 		-T "$tmp_subdir" \
 		$location $binding "$saml_message"
 	)

lib/saml_tools.sh

@@ -25,9 +25,11 @@
 # presenting an HTML login form to the client.
 #
 # Usage:
-#   probe_saml2_idp_endpoint [-v] \
+#   probe_saml2_idp_endpoint \
 #       -t CONNECT_TIME -m MAX_TIME \
 #       -r MAX_REDIRS \
+#       [-V CURL_TRACE_FILE] \
+#       [-o RESPONSE_FILE] \
 #       -T TMP_DIR \
 #       IDP_ENDPOINT_LOCATION IDP_ENDPOINT_BINDING \
 #       SAML_MESSAGE
@@ -78,11 +80,10 @@ probe_saml2_idp_endpoint () {
 	fi
 
 	# user agent
-	local script_version="0.5"
+	local script_version="0.6"
 	local user_agent_string="SAML2 IdP Endpoint Probe ${script_version}"
 
 	# command-line options
-	local verbose_mode=false
 	local local_opts
 	local connect_timeout
 	local max_time
@@ -116,23 +117,34 @@ probe_saml2_idp_endpoint () {
 	# Process command-line options and arguments.
 	###################################################################
 
+	# default curl options
+	curl_opts="--silent --show-error"
+	curl_opts="$curl_opts --insecure --tlsv1"
+
 	local opt
 	local OPTARG
 	local OPTIND
-	while getopts ":vt:m:r:T:" opt; do
+	while getopts ":t:m:r:V:o:T:" opt; do
 		case $opt in
-			v)
-				verbose_mode=true
-				local_opts="$local_opts -$opt"
-				;;
 			t)
 				connect_timeout="$OPTARG"
+				curl_opts="$curl_opts --connect-timeout $connect_timeout"
 				;;
 			m)
 				max_time="$OPTARG"
+				curl_opts="$curl_opts --max-time $max_time"
 				;;
 			r)
 				max_redirs="$OPTARG"
+				curl_opts="$curl_opts --location --max-redirs $max_redirs"
+				;;
+			V)
+				curl_trace_file="$OPTARG"
+				curl_opts="$curl_opts --trace-ascii $curl_trace_file"
+				;;
+			o)
+				response_file="$OPTARG"
+				curl_opts="$curl_opts --output $response_file"
 				;;
 			T)
 				tmp_dir="$OPTARG"
@@ -209,24 +221,11 @@ probe_saml2_idp_endpoint () {
 
 	# temporary files
 	header_file="${tmp_dir}/idp_http_header.txt"
+	curl_opts="${curl_opts} --dump-header $header_file"
 	printf "$FUNCNAME using IdP header file: %s\n" "$header_file" >> "$tmp_log_file"
-	response_file="${tmp_dir}/idp_http_response.html"
-	printf "$FUNCNAME using IdP response file: %s\n" "$response_file" >> "$tmp_log_file"
 	cookie_jar_file="${tmp_dir}/idp_cookie_jar.txt"
-	printf "$FUNCNAME using IdP cookie file: %s\n" "$cookie_jar_file" >> "$tmp_log_file"
-
-	# compute curl command-line options
-	curl_opts="--silent --show-error"
-	if $verbose_mode; then
-		curl_trace_file="${tmp_dir}/curl_trace.txt"
-		curl_opts="${curl_opts} --trace-ascii $curl_trace_file"
-	fi
-	curl_opts="${curl_opts} --connect-timeout $connect_timeout --max-time $max_time"
-	curl_opts="${curl_opts} --insecure --tlsv1"
-	curl_opts="${curl_opts} --location --max-redirs $max_redirs"
 	curl_opts="${curl_opts} --cookie-jar $cookie_jar_file --cookie $cookie_jar_file"
-	curl_opts="${curl_opts} --dump-header $header_file"
-	curl_opts="${curl_opts} --output $response_file"
+	printf "$FUNCNAME using IdP cookie file: %s\n" "$cookie_jar_file" >> "$tmp_log_file"
 
 	###################################################################
 	# Compute the protocol URL.
@@ -293,12 +292,12 @@ probe_saml2_idp_endpoint () {
 
 	fi
 
-	printf "$FUNCNAME using curl opts: %s\n" "$curl_opts" >> "$tmp_log_file"
-
 	###################################################################
 	# Probe the IdP endpoint.
 	###################################################################
 
+	printf "$FUNCNAME using curl opts: %s\n" "$curl_opts" >> "$tmp_log_file"
+
 	# transmit the request to the IdP
 	curl_output=$( /usr/bin/curl ${curl_opts} \
 		--user-agent "$user_agent_string" \