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Check subscriber existence by UUID on public pages

This commit is contained in:
Kailash Nadh 2019-07-21 21:58:25 +05:30
parent 3be5b27d03
commit 3cd8b86213
1 changed files with 31 additions and 5 deletions
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36
handlers.go
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@ -97,13 +97,13 @@ func registerHandlers(e *echo.Echo) {
e.DELETE("/api/templates/:id", handleDeleteTemplate)
// Subscriber facing views.
e.GET("/subscription/:campUUID/:subUUID", validateUUID(handleSubscriptionPage,
e.GET("/subscription/:campUUID/:subUUID", validateUUID(subscriberExists(handleSubscriptionPage),
"campUUID", "subUUID"))
e.POST("/subscription/:campUUID/:subUUID", validateUUID(handleSubscriptionPage,
e.POST("/subscription/:campUUID/:subUUID", validateUUID(subscriberExists(handleSubscriptionPage),
"campUUID", "subUUID"))
e.POST("/subscription/export/:subUUID", validateUUID(handleSelfExportSubscriberData,
e.POST("/subscription/export/:subUUID", validateUUID(subscriberExists(handleSelfExportSubscriberData),
"subUUID"))
e.POST("/subscription/wipe/:subUUID", validateUUID(handleWipeSubscriberData,
e.POST("/subscription/wipe/:subUUID", validateUUID(subscriberExists(handleWipeSubscriberData),
"subUUID"))
e.GET("/link/:linkUUID/:campUUID/:subUUID", validateUUID(handleLinkRedirect,
"linkUUID", "campUUID", "subUUID"))
@ -136,7 +136,7 @@ func handleIndexPage(c echo.Context) error {
return c.String(http.StatusOK, string(b))
}
// validateUUID validates the UUID string format for a given set of params.
// validateUUID middleware validates the UUID string format for a given set of params.
func validateUUID(next echo.HandlerFunc, params ...string) echo.HandlerFunc {
return func(c echo.Context) error {
for _, p := range params {
@ -150,6 +150,32 @@ func validateUUID(next echo.HandlerFunc, params ...string) echo.HandlerFunc {
}
}
// subscriberExists middleware checks if a subscriber exists given the UUID
// param in a request.
func subscriberExists(next echo.HandlerFunc, params ...string) echo.HandlerFunc {
return func(c echo.Context) error {
var (
app = c.Get("app").(*App)
subUUID = c.Param("subUUID")
)
var exists bool
if err := app.Queries.SubscriberExists.Get(&exists, 0, subUUID); err != nil {
app.Logger.Printf("error checking subscriber existence: %v", err)
return c.Render(http.StatusInternalServerError, "message",
makeMsgTpl("Error", "",
`Error processing request. Please retry.`))
}
if !exists {
return c.Render(http.StatusBadRequest, "message",
makeMsgTpl("Not found", "",
`Subscription not found.`))
}
return next(c)
}
}
// getPagination takes form values and extracts pagination values from it.
func getPagination(q url.Values) pagination {
var (