PLT-4938 Add app package and move logic over from api package (#4931)

* Add app package and move logic over from api package

* Change app package functions to return errors

* Move non-api tests into app package

* Fix merge

utils/config.go

@@ -32,6 +32,15 @@ var CfgHash = ""
 var CfgFileName string = ""
 var ClientCfg map[string]string = map[string]string{}
 var originalDisableDebugLvl l4g.Level = l4g.DEBUG
+var siteURL = ""
+
+func GetSiteURL() string {
+	return siteURL
+}
+
+func SetSiteURL(url string) {
+	siteURL = url
+}
 
 func FindConfigFile(fileName string) string {
 	if _, err := os.Stat("./config/" + fileName); err == nil {
@@ -215,6 +224,7 @@ func LoadConfig(fileName string) {
 	}
 
 	SetDefaultRolesBasedOnConfig()
+	SetSiteURL(*Cfg.ServiceSettings.SiteURL)
 }
 
 func RegenerateClientConfig() {

utils/utils.go

@@ -4,7 +4,11 @@
 package utils
 
 import (
+	"net"
+	"net/http"
 	"os"
+
+	"github.com/mattermost/platform/model"
 )
 
 func StringArrayIntersection(arr1, arr2 []string) []string {
@@ -48,3 +52,17 @@ func RemoveDuplicatesFromStringArray(arr []string) []string {
 
 	return result
 }
+
+func GetIpAddress(r *http.Request) string {
+	address := r.Header.Get(model.HEADER_FORWARDED)
+
+	if len(address) == 0 {
+		address = r.Header.Get(model.HEADER_REAL_IP)
+	}
+
+	if len(address) == 0 {
+		address, _, _ = net.SplitHostPort(r.RemoteAddr)
+	}
+
+	return address
+}