256 lines
7.6 KiB
Go
256 lines
7.6 KiB
Go
package server
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import (
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"heckel.io/ntfy/auth"
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"net/http"
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"net/netip"
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"time"
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"heckel.io/ntfy/util"
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)
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// List of possible events
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const (
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openEvent = "open"
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keepaliveEvent = "keepalive"
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messageEvent = "message"
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pollRequestEvent = "poll_request"
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)
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const (
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messageIDLength = 12
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)
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// message represents a message published to a topic
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type message struct {
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ID string `json:"id"` // Random message ID
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Time int64 `json:"time"` // Unix time in seconds
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Event string `json:"event"` // One of the above
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Topic string `json:"topic"`
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Title string `json:"title,omitempty"`
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Message string `json:"message,omitempty"`
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Priority int `json:"priority,omitempty"`
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Tags []string `json:"tags,omitempty"`
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Click string `json:"click,omitempty"`
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Icon string `json:"icon,omitempty"`
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Actions []*action `json:"actions,omitempty"`
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Attachment *attachment `json:"attachment,omitempty"`
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PollID string `json:"poll_id,omitempty"`
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Sender netip.Addr `json:"-"` // IP address of uploader, used for rate limiting
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Encoding string `json:"encoding,omitempty"` // empty for raw UTF-8, or "base64" for encoded bytes
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}
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type attachment struct {
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Name string `json:"name"`
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Type string `json:"type,omitempty"`
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Size int64 `json:"size,omitempty"`
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Expires int64 `json:"expires,omitempty"`
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URL string `json:"url"`
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}
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type action struct {
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ID string `json:"id"`
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Action string `json:"action"` // "view", "broadcast", or "http"
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Label string `json:"label"` // action button label
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Clear bool `json:"clear"` // clear notification after successful execution
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URL string `json:"url,omitempty"` // used in "view" and "http" actions
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Method string `json:"method,omitempty"` // used in "http" action, default is POST (!)
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Headers map[string]string `json:"headers,omitempty"` // used in "http" action
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Body string `json:"body,omitempty"` // used in "http" action
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Intent string `json:"intent,omitempty"` // used in "broadcast" action
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Extras map[string]string `json:"extras,omitempty"` // used in "broadcast" action
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}
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func newAction() *action {
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return &action{
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Headers: make(map[string]string),
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Extras: make(map[string]string),
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}
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}
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// publishMessage is used as input when publishing as JSON
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type publishMessage struct {
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Topic string `json:"topic"`
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Title string `json:"title"`
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Message string `json:"message"`
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Priority int `json:"priority"`
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Tags []string `json:"tags"`
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Click string `json:"click"`
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Icon string `json:"icon"`
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Actions []action `json:"actions"`
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Attach string `json:"attach"`
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Filename string `json:"filename"`
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Email string `json:"email"`
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Delay string `json:"delay"`
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}
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// messageEncoder is a function that knows how to encode a message
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type messageEncoder func(msg *message) (string, error)
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// newMessage creates a new message with the current timestamp
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func newMessage(event, topic, msg string) *message {
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return &message{
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ID: util.RandomString(messageIDLength),
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Time: time.Now().Unix(),
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Event: event,
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Topic: topic,
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Message: msg,
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}
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}
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// newOpenMessage is a convenience method to create an open message
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func newOpenMessage(topic string) *message {
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return newMessage(openEvent, topic, "")
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}
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// newKeepaliveMessage is a convenience method to create a keepalive message
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func newKeepaliveMessage(topic string) *message {
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return newMessage(keepaliveEvent, topic, "")
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}
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// newDefaultMessage is a convenience method to create a notification message
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func newDefaultMessage(topic, msg string) *message {
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return newMessage(messageEvent, topic, msg)
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}
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// newPollRequestMessage is a convenience method to create a poll request message
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func newPollRequestMessage(topic, pollID string) *message {
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m := newMessage(pollRequestEvent, topic, newMessageBody)
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m.PollID = pollID
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return m
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}
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func validMessageID(s string) bool {
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return util.ValidRandomString(s, messageIDLength)
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}
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type sinceMarker struct {
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time time.Time
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id string
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}
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func newSinceTime(timestamp int64) sinceMarker {
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return sinceMarker{time.Unix(timestamp, 0), ""}
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}
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func newSinceID(id string) sinceMarker {
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return sinceMarker{time.Unix(0, 0), id}
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}
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func (t sinceMarker) IsAll() bool {
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return t == sinceAllMessages
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}
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func (t sinceMarker) IsNone() bool {
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return t == sinceNoMessages
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}
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func (t sinceMarker) IsID() bool {
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return t.id != ""
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}
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func (t sinceMarker) Time() time.Time {
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return t.time
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}
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func (t sinceMarker) ID() string {
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return t.id
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}
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var (
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sinceAllMessages = sinceMarker{time.Unix(0, 0), ""}
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sinceNoMessages = sinceMarker{time.Unix(1, 0), ""}
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)
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type queryFilter struct {
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ID string
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Message string
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Title string
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Tags []string
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Priority []int
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}
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func parseQueryFilters(r *http.Request) (*queryFilter, error) {
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idFilter := readParam(r, "x-id", "id")
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messageFilter := readParam(r, "x-message", "message", "m")
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titleFilter := readParam(r, "x-title", "title", "t")
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tagsFilter := util.SplitNoEmpty(readParam(r, "x-tags", "tags", "tag", "ta"), ",")
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priorityFilter := make([]int, 0)
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for _, p := range util.SplitNoEmpty(readParam(r, "x-priority", "priority", "prio", "p"), ",") {
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priority, err := util.ParsePriority(p)
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if err != nil {
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return nil, errHTTPBadRequestPriorityInvalid
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}
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priorityFilter = append(priorityFilter, priority)
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}
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return &queryFilter{
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ID: idFilter,
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Message: messageFilter,
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Title: titleFilter,
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Tags: tagsFilter,
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Priority: priorityFilter,
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}, nil
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}
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func (q *queryFilter) Pass(msg *message) bool {
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if msg.Event != messageEvent {
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return true // filters only apply to messages
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} else if q.ID != "" && msg.ID != q.ID {
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return false
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} else if q.Message != "" && msg.Message != q.Message {
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return false
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} else if q.Title != "" && msg.Title != q.Title {
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return false
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}
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messagePriority := msg.Priority
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if messagePriority == 0 {
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messagePriority = 3 // For query filters, default priority (3) is the same as "not set" (0)
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}
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if len(q.Priority) > 0 && !util.Contains(q.Priority, messagePriority) {
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return false
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}
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if len(q.Tags) > 0 && !util.ContainsAll(msg.Tags, q.Tags) {
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return false
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}
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return true
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}
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type apiAccountCreateRequest struct {
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Username string `json:"username"`
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Password string `json:"password"`
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}
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type apiAccountTokenResponse struct {
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Token string `json:"token"`
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}
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type apiAccountSettingsPlan struct {
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Code string `json:"code"`
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Upgradable bool `json:"upgradable"`
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}
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type apiAccountLimits struct {
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MessagesLimit int64 `json:"messages"`
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EmailsLimit int64 `json:"emails"`
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AttachmentFileSizeLimit int64 `json:"attachment_file_size"`
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AttachmentTotalSizeLimit int64 `json:"attachment_total_size"`
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}
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type apiAccountStats struct {
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Basis string `json:"basis"` // "ip" or "account"
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Messages int64 `json:"messages"`
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Emails int64 `json:"emails"`
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AttachmentsSize int64 `json:"attachments_size"`
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}
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type apiAccountSettingsResponse struct {
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Username string `json:"username"`
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Role string `json:"role,omitempty"`
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Language string `json:"language,omitempty"`
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Notification *auth.UserNotificationPrefs `json:"notification,omitempty"`
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Subscriptions []*auth.UserSubscription `json:"subscriptions,omitempty"`
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Plan *apiAccountSettingsPlan `json:"plan,omitempty"`
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Limits *apiAccountLimits `json:"limits,omitempty"`
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Usage *apiAccountStats `json:"usage,omitempty"`
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}
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