Change parsing of postgresql settings (#4275)

* Change parsing of postgresql settings

Fix #4200

* Add copyright

* update postgresql connection string

* add tests

models/models_test.go

@@ -1,4 +1,5 @@
 // Copyright 2016 The Gogs Authors. All rights reserved.
+// Copyright 2018 The Gitea Authors. All rights reserved.
 // Use of this source code is governed by a MIT-style
 // license that can be found in the LICENSE file.
 
@@ -53,3 +54,42 @@ func Test_parsePostgreSQLHostPort(t *testing.T) {
 		assert.Equal(t, test.Port, port)
 	}
 }
+
+func Test_getPostgreSQLConnectionString(t *testing.T) {
+	tests := []struct {
+		Host    string
+		Port    string
+		User    string
+		Passwd  string
+		Name    string
+		Param   string
+		SSLMode string
+		Output  string
+	}{
+		{
+			Host:    "/tmp/pg.sock",
+			Port:    "4321",
+			User:    "testuser",
+			Passwd:  "space space !#$%^^%^```-=?=",
+			Name:    "gitea",
+			Param:   "",
+			SSLMode: "false",
+			Output:  "postgres://testuser:space%20space%20%21%23$%25%5E%5E%25%5E%60%60%60-=%3F=@:5432/giteasslmode=false&host=/tmp/pg.sock",
+		},
+		{
+			Host:    "localhost",
+			Port:    "1234",
+			User:    "pgsqlusername",
+			Passwd:  "I love Gitea!",
+			Name:    "gitea",
+			Param:   "",
+			SSLMode: "true",
+			Output:  "postgres://pgsqlusername:I%20love%20Gitea%21@localhost:5432/giteasslmode=true",
+		},
+	}
+
+	for _, test := range tests {
+		connStr := getPostgreSQLConnectionString(test.Host, test.User, test.Passwd, test.Name, test.Param, test.SSLMode)
+		assert.Equal(t, test.Output, connStr)
+	}
+}