mirror of
https://github.com/chuot/rdio-scanner.git
synced 2026-08-13 16:33:01 -06:00
2fe0758c22
- Introduced a new document, API_ACCESS_POLICY.md, outlining the terms of use for the WebSocket API, including license, scope of restriction, authorized access, authentication, prohibited use, enforcement, and contact information. - Updated README.md to highlight the restricted nature of the WebSocket API and link to the new access policy. - Changed copyright information in multiple server files to reflect the new email address for Chrystian Huot. - Added comments in server files to indicate the WebSocket API access policy and its restrictions.
548 lines
12 KiB
Go
548 lines
12 KiB
Go
// Copyright (C) 2019-2026 Chrystian Huot <chrystian.huot@saubeo.solutions>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>
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//
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// WebSocket API Access Policy:
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// This WebSocket API is reserved exclusively for Saubeo Solutions and its native applications.
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// Unauthorized access is strictly prohibited.
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// See API_ACCESS_POLICY.md for full terms.
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package main
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import (
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"bytes"
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"database/sql"
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"encoding/json"
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"errors"
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"fmt"
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"mime/multipart"
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"net/http"
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"net/url"
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"path"
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"sort"
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"strings"
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"sync"
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"time"
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)
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type Downstream struct {
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Id uint64
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Apikey string
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Disabled bool
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Order uint
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Systems any
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Url string
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controller *Controller
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}
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func NewDownstream(controller *Controller) *Downstream {
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return &Downstream{
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controller: controller,
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}
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}
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func (downstream *Downstream) FromMap(m map[string]any) *Downstream {
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switch v := m["id"].(type) {
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case float64:
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downstream.Id = uint64(v)
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}
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switch v := m["apikey"].(type) {
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case string:
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downstream.Apikey = v
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}
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switch v := m["disabled"].(type) {
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case bool:
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downstream.Disabled = v
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}
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switch v := m["order"].(type) {
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case float64:
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downstream.Order = uint(v)
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}
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downstream.Systems = m["systems"]
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switch v := m["url"].(type) {
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case string:
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downstream.Url = v
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}
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return downstream
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}
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func (downstream *Downstream) HasAccess(call *Call) bool {
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if downstream.Disabled {
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return false
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}
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switch v := downstream.Systems.(type) {
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case []any:
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for _, f := range v {
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switch v := f.(type) {
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case map[string]any:
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switch id := v["id"].(type) {
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case float64:
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if id == float64(call.System.SystemRef) {
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switch tg := v["talkgroups"].(type) {
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case string:
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if tg == "*" {
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return true
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}
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case []any:
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for _, f := range tg {
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switch tg := f.(type) {
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case float64:
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if tg == float64(call.Talkgroup.TalkgroupRef) {
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return true
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}
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}
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}
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}
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}
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}
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}
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}
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case string:
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if v == "*" {
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return true
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}
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}
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return false
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}
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func (downstream *Downstream) MarshalJSON() ([]byte, error) {
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m := map[string]any{
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"id": downstream.Id,
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"apikey": downstream.Apikey,
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"disabled": downstream.Disabled,
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"systems": downstream.Systems,
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"url": downstream.Url,
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}
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if downstream.Order > 0 {
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m["order"] = downstream.Order
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}
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return json.Marshal(m)
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}
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func (downstream *Downstream) Send(call *Call) error {
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var buf = bytes.Buffer{}
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formatError := func(err error) error {
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return fmt.Errorf("downstream.send: %s", err.Error())
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}
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if downstream.controller == nil {
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return formatError(errors.New("no controller available"))
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}
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if downstream.Disabled {
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return nil
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}
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mw := multipart.NewWriter(&buf)
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if w, err := mw.CreateFormFile("audio", call.AudioFilename); err == nil {
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if _, err = w.Write(call.Audio); err != nil {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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if w, err := mw.CreateFormField("audioFilename"); err == nil {
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if _, err = w.Write([]byte(call.AudioFilename)); err != nil {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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if w, err := mw.CreateFormField("audioMime"); err == nil {
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if _, err = w.Write([]byte(call.AudioMime)); err != nil {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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// pre v7 comptability
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if w, err := mw.CreateFormField("dateTime"); err == nil {
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if _, err = w.Write([]byte(call.Timestamp.Format(time.RFC3339))); err != nil {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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if w, err := mw.CreateFormField("frequencies"); err == nil {
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if b, err := json.Marshal(call.Frequencies); err == nil {
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if _, err = w.Write(b); err != nil {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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if w, err := mw.CreateFormField("key"); err == nil {
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if _, err = w.Write([]byte(downstream.Apikey)); err != nil {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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if w, err := mw.CreateFormField("patches"); err == nil {
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if b, err := json.Marshal(call.Patches); err == nil {
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if _, err = w.Write(b); err != nil {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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if w, err := mw.CreateFormField("system"); err == nil {
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if _, err = w.Write([]byte(fmt.Sprintf("%v", call.System.SystemRef))); err != nil {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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if w, err := mw.CreateFormField("systemLabel"); err == nil {
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if _, err = w.Write([]byte(call.System.Label)); err != nil {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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if w, err := mw.CreateFormField("talkgroup"); err == nil {
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if _, err = w.Write([]byte(fmt.Sprintf("%v", call.Talkgroup.TalkgroupRef))); err != nil {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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if w, err := mw.CreateFormField("talkgroupGroups"); err == nil {
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var labels = []string{}
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for _, id := range call.Talkgroup.GroupIds {
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if group, ok := downstream.controller.Groups.GetGroupById(id); ok {
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labels = append(labels, group.Label)
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}
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}
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if _, err = w.Write([]byte(strings.Join(labels, ","))); err != nil {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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if w, err := mw.CreateFormField("talkgroupLabel"); err == nil {
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if _, err = w.Write([]byte(call.Talkgroup.Label)); err != nil {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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if w, err := mw.CreateFormField("talkgroupName"); err == nil {
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if _, err = w.Write([]byte(call.Talkgroup.Name)); err != nil {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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if w, err := mw.CreateFormField("talkgroupTag"); err == nil {
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if tag, ok := downstream.controller.Tags.GetTagById(call.Talkgroup.TagId); ok {
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if _, err = w.Write([]byte(tag.Label)); err != nil {
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return formatError(err)
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}
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}
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} else {
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return formatError(err)
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}
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if w, err := mw.CreateFormField("timestamp"); err == nil {
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if _, err = w.Write([]byte(fmt.Sprintf("%d", call.Timestamp.UnixMilli()))); err != nil {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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if w, err := mw.CreateFormField("units"); err == nil {
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if b, err := json.Marshal(call.Units); err == nil {
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if _, err = w.Write(b); err != nil {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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if err := mw.Close(); err != nil {
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return formatError(err)
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}
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if u, err := url.Parse(downstream.Url); err == nil {
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u.Path = path.Join(u.Path, "/api/call-upload")
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c := http.Client{Timeout: 30 * time.Second}
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if res, err := c.Post(u.String(), mw.FormDataContentType(), &buf); err == nil {
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if res.StatusCode != http.StatusOK {
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return formatError(fmt.Errorf("bad status: %s", res.Status))
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}
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} else {
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return formatError(err)
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}
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} else {
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return formatError(err)
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}
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return nil
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}
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type Downstreams struct {
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List []*Downstream
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controller *Controller
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mutex sync.Mutex
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}
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func NewDownstreams(controller *Controller) *Downstreams {
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return &Downstreams{
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List: []*Downstream{},
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controller: controller,
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mutex: sync.Mutex{},
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}
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}
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func (downstreams *Downstreams) FromMap(f []any) *Downstreams {
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downstreams.mutex.Lock()
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defer downstreams.mutex.Unlock()
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downstreams.List = []*Downstream{}
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for _, r := range f {
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switch m := r.(type) {
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case map[string]any:
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downstream := NewDownstream(downstreams.controller).FromMap(m)
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downstreams.List = append(downstreams.List, downstream)
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}
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}
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return downstreams
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}
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func (downstreams *Downstreams) Read(db *Database) error {
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var (
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err error
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query string
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rows *sql.Rows
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)
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downstreams.mutex.Lock()
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defer downstreams.mutex.Unlock()
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downstreams.List = []*Downstream{}
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formatError := downstreams.errorFormatter("read")
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query = `SELECT "downstreamId", "apikey", "disabled", "order", "systems", "url" FROM "downstreams"`
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if rows, err = db.Sql.Query(query); err != nil {
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return formatError(err, query)
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}
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for rows.Next() {
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var (
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downstream = NewDownstream(downstreams.controller)
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systems string
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)
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if err = rows.Scan(&downstream.Id, &downstream.Apikey, &downstream.Disabled, &downstream.Order, &systems, &downstream.Url); err != nil {
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break
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}
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if len(systems) > 0 {
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json.Unmarshal([]byte(systems), &downstream.Systems)
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}
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downstreams.List = append(downstreams.List, downstream)
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}
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rows.Close()
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if err != nil {
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return formatError(err, "")
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}
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sort.Slice(downstreams.List, func(i int, j int) bool {
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return downstreams.List[i].Order < downstreams.List[j].Order
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})
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return nil
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}
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func (downstreams *Downstreams) Send(controller *Controller, call *Call) {
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for _, downstream := range downstreams.List {
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logEvent := func(logLevel string, message string) {
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controller.Logs.LogEvent(logLevel, fmt.Sprintf("downstream: system=%d talkgroup=%d file=%s to %s %s", call.System.SystemRef, call.Talkgroup.TalkgroupRef, call.AudioFilename, downstream.Url, message))
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}
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if downstream.HasAccess(call) {
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if err := downstream.Send(call); err == nil {
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logEvent(LogLevelInfo, "success")
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} else {
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logEvent(LogLevelError, err.Error())
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}
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}
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}
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}
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func (downstreams *Downstreams) Write(db *Database) error {
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var (
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downstreamIds = []uint64{}
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err error
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query string
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rows *sql.Rows
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tx *sql.Tx
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)
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downstreams.mutex.Lock()
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defer downstreams.mutex.Unlock()
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formatError := downstreams.errorFormatter("write")
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if tx, err = db.Sql.Begin(); err != nil {
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return formatError(err, "")
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}
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query = `SELECT "downstreamId" FROM "downstreams"`
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if rows, err = tx.Query(query); err != nil {
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tx.Rollback()
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return formatError(err, query)
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}
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for rows.Next() {
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var downstreamId uint64
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if err = rows.Scan(&downstreamId); err != nil {
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break
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}
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remove := true
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for _, downstream := range downstreams.List {
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if downstream.Id == 0 || downstream.Id == downstreamId {
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remove = false
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break
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}
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}
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if remove {
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downstreamIds = append(downstreamIds, downstreamId)
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}
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}
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rows.Close()
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if err != nil {
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tx.Rollback()
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return formatError(err, "")
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}
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if len(downstreamIds) > 0 {
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if b, err := json.Marshal(downstreamIds); err == nil {
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in := strings.ReplaceAll(strings.ReplaceAll(string(b), "[", "("), "]", ")")
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query = fmt.Sprintf(`DELETE FROM "downstreams" WHERE "downstreamId" IN %s`, in)
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if _, err = tx.Exec(query); err != nil {
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tx.Rollback()
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return formatError(err, query)
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}
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}
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}
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for _, downstream := range downstreams.List {
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var (
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count uint
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systems string
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)
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if downstream.Systems != nil {
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if b, err := json.Marshal(downstream.Systems); err == nil {
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systems = string(b)
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}
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}
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if downstream.Id > 0 {
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query = fmt.Sprintf(`SELECT COUNT(*) FROM "downstreams" WHERE "downstreamId" = %d`, downstream.Id)
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if err = tx.QueryRow(query).Scan(&count); err != nil {
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break
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}
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}
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if count == 0 {
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query = fmt.Sprintf(`INSERT INTO "downstreams" ("apikey", "disabled", "order", "systems", "url") VALUES ('%s', %t, %d, '%s', '%s')`, escapeQuotes(downstream.Apikey), downstream.Disabled, downstream.Order, systems, escapeQuotes(downstream.Url))
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if _, err = tx.Exec(query); err != nil {
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break
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}
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} else {
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query = fmt.Sprintf(`UPDATE "downstreams" SET "apikey" = '%s', "disabled" = %t, "order" = %d, "systems" = '%s', "url" = '%s' WHERE "downstreamId" = %d`, escapeQuotes(downstream.Apikey), downstream.Disabled, downstream.Order, systems, escapeQuotes(downstream.Url), downstream.Id)
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if _, err = tx.Exec(query); err != nil {
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break
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}
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}
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}
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if err != nil {
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tx.Rollback()
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return formatError(err, query)
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}
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if err = tx.Commit(); err != nil {
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tx.Rollback()
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return formatError(err, "")
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}
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return nil
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}
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func (downstreams *Downstreams) errorFormatter(label string) func(err error, query string) error {
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return func(err error, query string) error {
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s := fmt.Sprintf("downstreams.%s: %s", label, err.Error())
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if len(query) > 0 {
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s = fmt.Sprintf("%s in %s", s, query)
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}
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return errors.New(s)
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}
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}
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