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messages.go
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messages.go
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package actions
//! WIP
//* Use Belonging Interface
//* Test coverage: Exported Handlers
import (
"bytes"
"fmt"
"net/http"
"text/template"
"github.com/gobuffalo/buffalo"
"github.com/gobuffalo/pop"
"github.com/markbates/inflect"
"github.com/pkg/errors"
"github.com/hyeoncheon/uart/jobs"
"github.com/hyeoncheon/uart/models"
"github.com/hyeoncheon/uart/utils"
)
// constants for messaging/logging subsystem
const (
MsgFacCore = "core"
MsgFacAuth = "auth"
MsgFacApp = "app"
MsgFacUser = "user"
MsgFacMesg = "messaging"
MsgFacCron = "scheduler"
MsgFacSecu = "security"
MsgPriEmerg = 0 // RESERVED
MsgPriAlert = 1 // for alert
MsgPriCrit = 2 // FATAL
MsgPriErr = 3
MsgPriWarn = 4
MsgPriNote = 5 // for notification
MsgPriInfo = 6
MsgPriDebug = 7
)
// MessagesResource is the resource for the message model
type MessagesResource struct {
buffalo.Resource
}
// List gets all Messages. GET /messages
func (v MessagesResource) List(c buffalo.Context) error {
tx := c.Value("tx").(*pop.Connection)
messages := &models.Messages{}
q := tx.PaginateFromParams(c.Params())
err := models.AllMy(q, dummyMember(c), messages, false)
if err != nil {
return utils.DOOPS(c, "while listing messages (params: %v, error: %v)", c.Params(), err)
}
c.Set("messages", messages)
c.Set("pagination", q.Paginator)
return c.Render(http.StatusOK, r.HTML("messages/index.html"))
}
// Show gets the data for one Message. GET /messages/{message_id}
func (v MessagesResource) Show(c buffalo.Context) error {
tx := c.Value("tx").(*pop.Connection)
message := &models.Message{}
err := models.FindMy(tx.Q(), dummyMember(c), message, c.Param("message_id"))
if err != nil {
c.Flash().Add("danger", t(c, "eep.message.not.found"))
mLogErr(c, MsgFacSecu, "access violation: message by %v", currentMember(c))
return c.Redirect(http.StatusFound, "/")
}
c.Set("message", message)
return c.Render(http.StatusOK, r.HTML("messages/show.html"))
}
// New renders the formular for creating a new Message. GET /messages/new
//! NOT USED, do we need to communicate between members or admin to member?
/*
func (v MessagesResource) New(c buffalo.Context) error {
c.Set("message", &models.Message{})
return c.Render(200, r.HTML("messages/new.html"))
}
*/
// Create adds a Message to the DB. POST /messages
//! NOT USED, do we need to communicate between members or admin to member?
/*
func (v MessagesResource) Create(c buffalo.Context) error {
message := &models.Message{}
err := c.Bind(message)
if err != nil {
return errors.WithStack(err)
}
tx := c.Value("tx").(*pop.Connection)
verrs, err := tx.ValidateAndCreate(message)
if err != nil {
return errors.WithStack(err)
}
if verrs.HasAny() {
c.Set("message", message)
c.Set("errors", verrs)
return c.Render(422, r.HTML("messages/new.html"))
}
c.Flash().Add("success", "Message was created successfully")
return c.Redirect(302, "/messages/%s", message.ID)
}
*/
// Dismiss changes status of message map. GET /messages/{message_id}/dismiss
func (v MessagesResource) Dismiss(c buffalo.Context) error {
tx := c.Value("tx").(*pop.Connection)
messageMap := &models.MessageMap{}
err := tx.BelongsTo(dummyMember(c)).
Where("message_id = ?", c.Param("message_id")).First(messageMap)
if err != nil {
return utils.InvalidAccess(c, "/messages", "while find message: %v, error: %v", c.Param("message_id"), err)
}
messageMap.IsRead = true
err = tx.Save(messageMap)
if err != nil {
return utils.DOOPS(c, "while saving message map: %v, error: %v", messageMap, err)
}
c.Flash().Add("success", t(c, "message.dismissed"))
return c.Redirect(http.StatusSeeOther, "/messages")
}
// Destroy deletes a message from the DB. DELETE /messages/{message_id}
// ADMIN PROTECTED
func (v MessagesResource) Destroy(c buffalo.Context) error {
tx := c.Value("tx").(*pop.Connection)
message := &models.Message{}
err := tx.Find(message, c.Param("message_id"))
if err != nil {
return utils.InvalidAccess(c, "/messages", "while find message: %v, error: %v", c.Param("message_id"), err)
}
err = tx.Destroy(message)
if err != nil {
return utils.DOOPS(c, "while deleting message: %v, error: %v", message, err)
}
c.Flash().Add("success", "Message was destroyed successfully")
return c.Redirect(http.StatusSeeOther, "/messages")
}
//** utilities
// mLog* replaces default, simple Logger.* functions with message.
func mLogInfo(c buffalo.Context, fac, form string, args ...interface{}) error {
c.Logger().WithField("category", fac).Infof(form, args...)
return mLog(c, MsgPriInfo, fac, form, args...)
}
func mLogWarn(c buffalo.Context, fac, form string, args ...interface{}) error {
c.Logger().WithField("category", fac).Warnf(form, args...)
return mLog(c, MsgPriWarn, fac, form, args...)
}
func mLogErr(c buffalo.Context, fac, form string, args ...interface{}) error {
c.Logger().WithField("category", fac).Errorf(form, args...)
return mLog(c, MsgPriErr, fac, form, args...)
}
func mLogNote(c buffalo.Context, fac, form string, args ...interface{}) error {
c.Logger().WithField("category", fac).Infof(form, args...)
return mLog(c, MsgPriNote, fac, form, args...)
}
func mLogAlert(c buffalo.Context, fac, form string, args ...interface{}) error {
c.Logger().WithField("category", fac).Errorf(form, args...)
return mLog(c, MsgPriAlert, fac, form, args...)
}
// mLog create simple, common log message for UART system administrators
func mLog(c buffalo.Context, p int, fac, form string, args ...interface{}) error {
tx := c.Value("tx").(*pop.Connection)
mesg := fmt.Sprintf(form, args...)
rcpts := utils.UARTAdmins(tx)
m := models.NewMessage(tx, dummyMember(c).ID, rcpts, nil, mesg, "",
models.ACUART, fac, p, true)
if m == nil {
tx.TX.Rollback()
c.Logger().Error("cannot create new message")
return errors.New("cannot create new message")
}
return nil
}
// appMsg log and create a message for application admins (not system level)
func appMsg(c buffalo.Context, r *models.Members, content, form string, args ...interface{}) error {
c.Logger().WithField("category", MsgFacApp).Infof(form, args...)
tx := c.Value("tx").(*pop.Connection)
mesg := fmt.Sprintf(form, args...)
m := models.NewMessage(tx, dummyMember(c).ID, r, nil, mesg, content,
models.ACUART, MsgFacApp, MsgPriNote, false)
if m == nil {
tx.TX.Rollback()
c.Logger().Error("cannot create new message")
return errors.New("cannot create new message")
}
for _, member := range *r {
jobs.QueueMessaging(member.ID)
}
return nil
}
// for template based messages
//
// xMsg create template based message.
func xMsg(c buffalo.Context, r *models.Members, app, fac string, prio int, mesg, tpl string, data interface{}) error {
tmpl, err := template.ParseFiles(uartHome + "/messages/" + tpl + ".tpl")
if err != nil {
c.Logger().WithField("color", "RED").Error("TEMPLATE: PARSE ERROR")
return err
}
buf := &bytes.Buffer{}
if err := tmpl.Execute(buf, data); err != nil {
c.Logger().WithField("color", "YELLOW").Error("TEMPLATE: EXEC ERROR")
return err
}
content := buf.String()
c.Logger().Debugf("------ message content:\n%v\n------", content)
tx := c.Value("tx").(*pop.Connection)
m := models.NewMessage(tx, dummyMember(c).ID, r, nil, mesg, content,
app, fac, prio, false)
if m == nil {
tx.TX.Rollback()
c.Logger().Error("cannot create new formatted message")
return errors.New("cannot create new formatted message")
}
for _, member := range *r {
jobs.QueueMessaging(member.ID)
}
return nil
}
// Inventory used as template inventory for messaging subsystem
type Inventory interface {
String() string
}
// noteMsg logs and creates info level message with template
func noteMsg(c buffalo.Context, r *models.Members, fac, tpl string, data Inventory) error {
mesg := inflect.Titleize(tpl) + ": " + data.String()
c.Logger().WithField("category", fac).Info(mesg)
return xMsg(c, r, models.ACUART, fac, MsgPriNote, mesg, tpl, data)
}
// alertMsg logs and creates warning level message with template
func alertMsg(c buffalo.Context, r *models.Members, fac, tpl string, data Inventory) error {
mesg := inflect.Titleize(tpl) + ": " + data.String()
c.Logger().WithField("category", fac).Warn(mesg)
return xMsg(c, r, models.ACUART, fac, MsgPriAlert, mesg, tpl, data)
}