mirror of
https://github.com/knadh/listmonk.git
synced 2024-11-10 17:13:04 +08:00
278 lines
9.3 KiB
Go
278 lines
9.3 KiB
Go
package main
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import (
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"crypto/subtle"
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"net/http"
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"net/url"
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"regexp"
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"strconv"
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"github.com/labstack/echo"
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"github.com/labstack/echo/middleware"
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)
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const (
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// stdInputMaxLen is the maximum allowed length for a standard input field.
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stdInputMaxLen = 200
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sortAsc = "asc"
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sortDesc = "desc"
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)
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type okResp struct {
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Data interface{} `json:"data"`
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}
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// pagination represents a query's pagination (limit, offset) related values.
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type pagination struct {
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PerPage int `json:"per_page"`
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Page int `json:"page"`
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Offset int `json:"offset"`
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Limit int `json:"limit"`
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}
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var (
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reUUID = regexp.MustCompile("^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$")
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reLangCode = regexp.MustCompile("[^a-zA-Z_0-9]")
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)
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// registerHandlers registers HTTP handlers.
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func registerHTTPHandlers(e *echo.Echo, app *App) {
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// Group of private handlers with BasicAuth.
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var g *echo.Group
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if len(app.constants.AdminUsername) == 0 ||
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len(app.constants.AdminPassword) == 0 {
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g = e.Group("")
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} else {
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g = e.Group("", middleware.BasicAuth(basicAuth))
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}
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g.GET("/", handleIndexPage)
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g.GET("/api/health", handleHealthCheck)
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g.GET("/api/config", handleGetServerConfig)
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g.GET("/api/lang/:lang", handleGetI18nLang)
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g.GET("/api/dashboard/charts", handleGetDashboardCharts)
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g.GET("/api/dashboard/counts", handleGetDashboardCounts)
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g.GET("/api/settings", handleGetSettings)
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g.PUT("/api/settings", handleUpdateSettings)
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g.POST("/api/admin/reload", handleReloadApp)
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g.GET("/api/logs", handleGetLogs)
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g.GET("/api/subscribers/:id", handleGetSubscriber)
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g.GET("/api/subscribers/:id/export", handleExportSubscriberData)
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g.POST("/api/subscribers", handleCreateSubscriber)
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g.PUT("/api/subscribers/:id", handleUpdateSubscriber)
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g.POST("/api/subscribers/:id/optin", handleSubscriberSendOptin)
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g.PUT("/api/subscribers/blocklist", handleBlocklistSubscribers)
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g.PUT("/api/subscribers/:id/blocklist", handleBlocklistSubscribers)
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g.PUT("/api/subscribers/lists/:id", handleManageSubscriberLists)
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g.PUT("/api/subscribers/lists", handleManageSubscriberLists)
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g.DELETE("/api/subscribers/:id", handleDeleteSubscribers)
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g.DELETE("/api/subscribers", handleDeleteSubscribers)
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// Subscriber operations based on arbitrary SQL queries.
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// These aren't very REST-like.
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g.POST("/api/subscribers/query/delete", handleDeleteSubscribersByQuery)
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g.PUT("/api/subscribers/query/blocklist", handleBlocklistSubscribersByQuery)
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g.PUT("/api/subscribers/query/lists", handleManageSubscriberListsByQuery)
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g.GET("/api/subscribers", handleQuerySubscribers)
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g.GET("/api/subscribers/export",
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middleware.GzipWithConfig(middleware.GzipConfig{Level: 9})(handleExportSubscribers))
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g.GET("/api/import/subscribers", handleGetImportSubscribers)
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g.GET("/api/import/subscribers/logs", handleGetImportSubscriberStats)
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g.POST("/api/import/subscribers", handleImportSubscribers)
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g.DELETE("/api/import/subscribers", handleStopImportSubscribers)
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g.GET("/api/lists", handleGetLists)
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g.GET("/api/lists/:id", handleGetLists)
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g.POST("/api/lists", handleCreateList)
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g.PUT("/api/lists/:id", handleUpdateList)
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g.DELETE("/api/lists/:id", handleDeleteLists)
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g.GET("/api/campaigns", handleGetCampaigns)
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g.GET("/api/campaigns/running/stats", handleGetRunningCampaignStats)
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g.GET("/api/campaigns/:id", handleGetCampaigns)
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g.GET("/api/campaigns/:id/preview", handlePreviewCampaign)
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g.POST("/api/campaigns/:id/preview", handlePreviewCampaign)
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g.POST("/api/campaigns/:id/text", handlePreviewCampaign)
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g.POST("/api/campaigns/:id/test", handleTestCampaign)
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g.POST("/api/campaigns", handleCreateCampaign)
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g.PUT("/api/campaigns/:id", handleUpdateCampaign)
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g.PUT("/api/campaigns/:id/status", handleUpdateCampaignStatus)
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g.DELETE("/api/campaigns/:id", handleDeleteCampaign)
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g.GET("/api/media", handleGetMedia)
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g.POST("/api/media", handleUploadMedia)
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g.DELETE("/api/media/:id", handleDeleteMedia)
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g.GET("/api/templates", handleGetTemplates)
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g.GET("/api/templates/:id", handleGetTemplates)
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g.GET("/api/templates/:id/preview", handlePreviewTemplate)
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g.POST("/api/templates/preview", handlePreviewTemplate)
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g.POST("/api/templates", handleCreateTemplate)
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g.PUT("/api/templates/:id", handleUpdateTemplate)
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g.PUT("/api/templates/:id/default", handleTemplateSetDefault)
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g.DELETE("/api/templates/:id", handleDeleteTemplate)
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// Static admin views.
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g.GET("/lists", handleIndexPage)
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g.GET("/lists/forms", handleIndexPage)
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g.GET("/subscribers", handleIndexPage)
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g.GET("/subscribers/lists/:listID", handleIndexPage)
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g.GET("/subscribers/import", handleIndexPage)
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g.GET("/campaigns", handleIndexPage)
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g.GET("/campaigns/new", handleIndexPage)
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g.GET("/campaigns/media", handleIndexPage)
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g.GET("/campaigns/templates", handleIndexPage)
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g.GET("/campaigns/:campignID", handleIndexPage)
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g.GET("/settings", handleIndexPage)
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g.GET("/settings/logs", handleIndexPage)
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// Public subscriber facing views.
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e.GET("/subscription/form", handleSubscriptionFormPage)
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e.POST("/subscription/form", handleSubscriptionForm)
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e.GET("/subscription/:campUUID/:subUUID", validateUUID(subscriberExists(handleSubscriptionPage),
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"campUUID", "subUUID"))
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e.POST("/subscription/:campUUID/:subUUID", validateUUID(subscriberExists(handleSubscriptionPage),
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"campUUID", "subUUID"))
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e.GET("/subscription/optin/:subUUID", validateUUID(subscriberExists(handleOptinPage), "subUUID"))
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e.POST("/subscription/optin/:subUUID", validateUUID(subscriberExists(handleOptinPage), "subUUID"))
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e.POST("/subscription/export/:subUUID", validateUUID(subscriberExists(handleSelfExportSubscriberData),
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"subUUID"))
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e.POST("/subscription/wipe/:subUUID", validateUUID(subscriberExists(handleWipeSubscriberData),
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"subUUID"))
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e.GET("/link/:linkUUID/:campUUID/:subUUID", validateUUID(handleLinkRedirect,
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"linkUUID", "campUUID", "subUUID"))
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e.GET("/campaign/:campUUID/:subUUID", validateUUID(handleViewCampaignMessage,
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"campUUID", "subUUID"))
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e.GET("/campaign/:campUUID/:subUUID/px.png", validateUUID(handleRegisterCampaignView,
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"campUUID", "subUUID"))
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}
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// handleIndex is the root handler that renders the Javascript frontend.
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func handleIndexPage(c echo.Context) error {
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app := c.Get("app").(*App)
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b, err := app.fs.Read("/frontend/index.html")
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if err != nil {
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return echo.NewHTTPError(http.StatusInternalServerError, err.Error())
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}
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c.Response().Header().Set("Content-Type", "text/html")
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return c.String(http.StatusOK, string(b))
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}
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// handleHealthCheck is a healthcheck endpoint that returns a 200 response.
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func handleHealthCheck(c echo.Context) error {
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return c.JSON(http.StatusOK, okResp{true})
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}
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// basicAuth middleware does an HTTP BasicAuth authentication for admin handlers.
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func basicAuth(username, password string, c echo.Context) (bool, error) {
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app := c.Get("app").(*App)
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// Auth is disabled.
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if len(app.constants.AdminUsername) == 0 &&
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len(app.constants.AdminPassword) == 0 {
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return true, nil
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}
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if subtle.ConstantTimeCompare([]byte(username), app.constants.AdminUsername) == 1 &&
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subtle.ConstantTimeCompare([]byte(password), app.constants.AdminPassword) == 1 {
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return true, nil
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}
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return false, nil
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}
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// validateUUID middleware validates the UUID string format for a given set of params.
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func validateUUID(next echo.HandlerFunc, params ...string) echo.HandlerFunc {
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return func(c echo.Context) error {
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app := c.Get("app").(*App)
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for _, p := range params {
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if !reUUID.MatchString(c.Param(p)) {
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return c.Render(http.StatusBadRequest, tplMessage,
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makeMsgTpl(app.i18n.T("public.errorTitle"), "",
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app.i18n.T("globals.messages.invalidUUID")))
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}
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}
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return next(c)
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}
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}
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// subscriberExists middleware checks if a subscriber exists given the UUID
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// param in a request.
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func subscriberExists(next echo.HandlerFunc, params ...string) echo.HandlerFunc {
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return func(c echo.Context) error {
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var (
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app = c.Get("app").(*App)
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subUUID = c.Param("subUUID")
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)
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var exists bool
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if err := app.queries.SubscriberExists.Get(&exists, 0, subUUID); err != nil {
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app.log.Printf("error checking subscriber existence: %v", err)
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return c.Render(http.StatusInternalServerError, tplMessage,
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makeMsgTpl(app.i18n.T("public.errorTitle"), "",
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app.i18n.T("public.errorProcessingRequest")))
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}
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if !exists {
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return c.Render(http.StatusNotFound, tplMessage,
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makeMsgTpl(app.i18n.T("public.notFoundTitle"), "",
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app.i18n.T("public.subNotFound")))
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}
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return next(c)
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}
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}
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// getPagination takes form values and extracts pagination values from it.
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func getPagination(q url.Values, perPage, maxPerPage int) pagination {
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page, _ := strconv.Atoi(q.Get("page"))
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pp := q.Get("per_page")
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if pp == "all" {
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// No limit.
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perPage = 0
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} else {
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ppi, _ := strconv.Atoi(pp)
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if ppi > 0 && ppi <= maxPerPage {
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perPage = ppi
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}
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}
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if page < 1 {
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page = 0
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} else {
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page--
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}
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return pagination{
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Page: page + 1,
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PerPage: perPage,
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Offset: page * perPage,
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Limit: perPage,
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}
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}
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// copyEchoCtx returns a copy of the the current echo.Context in a request
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// with the given params set for the active handler to proxy the request
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// to another handler without mutating its context.
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func copyEchoCtx(c echo.Context, params map[string]string) echo.Context {
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var (
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keys = make([]string, 0, len(params))
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vals = make([]string, 0, len(params))
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)
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for k, v := range params {
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keys = append(keys, k)
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vals = append(vals, v)
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}
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b := c.Echo().NewContext(c.Request(), c.Response())
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b.Set("app", c.Get("app").(*App))
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b.SetParamNames(keys...)
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b.SetParamValues(vals...)
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return b
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}
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