add preemtive permission handlers

Signed-off-by: RonniSkansing <rskansing@gmail.com>

backend/controller/geoip.go

@@ -12,10 +12,13 @@ type GeoIP struct {
 
 // GetMetadata returns the available country codes for the filter UI
 func (c *GeoIP) GetMetadata(g *gin.Context) {
-	_, _, ok := c.handleSession(g)
+	session, _, ok := c.handleSession(g)
 	if !ok {
 		return
 	}
+	if !c.handleGlobalAuthorization(g, session) {
+		return
+	}
 
 	codes := ipdata.Get().CountryCodes()
 
@@ -28,10 +31,13 @@ func (c *GeoIP) GetMetadata(g *gin.Context) {
 
 // Lookup performs a country lookup for the provided IP address
 func (c *GeoIP) Lookup(g *gin.Context) {
-	_, _, ok := c.handleSession(g)
+	session, _, ok := c.handleSession(g)
 	if !ok {
 		return
 	}
+	if !c.handleGlobalAuthorization(g, session) {
+		return
+	}
 
 	ip := g.Query("ip")
 	if ip == "" {

backend/controller/ipdata.go

@@ -58,10 +58,13 @@ func (c *IPData) Remove(g *gin.Context) {
 
 // SearchASN returns ASNs matching the query for the filter typeahead
 func (c *IPData) SearchASN(g *gin.Context) {
-	_, _, ok := c.handleSession(g)
+	session, _, ok := c.handleSession(g)
 	if !ok {
 		return
 	}
+	if !c.handleGlobalAuthorization(g, session) {
+		return
+	}
 	q := g.Query("q")
 	limit := 25
 	if v := g.Query("limit"); v != "" {
@@ -75,10 +78,13 @@ func (c *IPData) SearchASN(g *gin.Context) {
 
 // LookupASN returns the autonomous systems that announce the given IP address
 func (c *IPData) LookupASN(g *gin.Context) {
-	_, _, ok := c.handleSession(g)
+	session, _, ok := c.handleSession(g)
 	if !ok {
 		return
 	}
+	if !c.handleGlobalAuthorization(g, session) {
+		return
+	}
 	ip := g.Query("ip")
 	if ip == "" {
 		c.Response.BadRequest(g)
@@ -102,10 +108,13 @@ type ResolveASNRequest struct {
 // ResolveASNs returns the details of the given ASNs that exist in the dataset.
 // ASNs that are absent are left out, which lets the UI flag orphaned entries.
 func (c *IPData) ResolveASNs(g *gin.Context) {
-	_, _, ok := c.handleSession(g)
+	session, _, ok := c.handleSession(g)
 	if !ok {
 		return
 	}
+	if !c.handleGlobalAuthorization(g, session) {
+		return
+	}
 	var req ResolveASNRequest
 	if ok := c.handleParseRequest(g, &req); !ok {
 		return

backend/controller/utils.go

@@ -15,6 +15,7 @@ import (
 	"github.com/gin-gonic/gin"
 	"github.com/google/uuid"
 	"github.com/phishingclub/phishingclub/api"
+	"github.com/phishingclub/phishingclub/data"
 	"github.com/phishingclub/phishingclub/errs"
 	"github.com/phishingclub/phishingclub/model"
 	"github.com/phishingclub/phishingclub/service"
@@ -58,6 +59,25 @@ func (c *Common) handleSession(
 	return session, user, true
 }
 
+// handleGlobalAuthorization checks the session holds the global permission.
+// On a server error or a failed authorization it writes the response and
+// returns false.
+func (c *Common) handleGlobalAuthorization(
+	g *gin.Context,
+	session *model.Session,
+) bool {
+	isAuthorized, err := service.IsAuthorized(session, data.PERMISSION_ALLOW_GLOBAL)
+	if err != nil && !errors.Is(err, errs.ErrAuthorizationFailed) {
+		_ = handleServerError(g, c.Response, err)
+		return false
+	}
+	if !isAuthorized {
+		c.Response.Unauthorized(g)
+		return false
+	}
+	return true
+}
+
 // HandleParseRequest parses the request and returns true if successful
 // if the request is not parsable, a 400 response is sent
 func (c *Common) handleParseRequest(