Refactor web (#26)

This commit is contained in:
2023-11-20 07:38:16 +10:30
committed by GitHub
parent 6e2c8d17a1
commit adb9922b52
10 changed files with 500 additions and 411 deletions

View File

@@ -5,32 +5,20 @@
<table class="pure-table" >
<tr>
<th>profile</th>
<td>
<select x-bind:disabled="profile_chosen" x-on:change="update_profile()" class="pure-input-1-2" x-model="profile_chosen">
<option value="">choose a profile to start</option>
{{ range $i := .config.DownloadProfiles }}
<option>{{ $i.Name }}</option>
{{ end }}
</select>
</td>
<td>{{ .dl.DownloadProfile.Name }}</td>
</tr>
<tr><th>current filename</th><td x-text="filename"></td></tr>
<tr>
<th>destination</th>
<td>
<select x-on:change="update_destination()" class="pure-input-1-2" x-model="destination_chosen">
<option value="-">leave in {{ .config.Server.DownloadPath }}</option>
{{ range $i := .config.Destinations }}
<option>{{ $i.Name }}</option>
{{ end }}
</select>
{{ if .dl.Destination }} {{ .dl.Destination.Name }} {{ else }} leave in {{ .config.Server.DownloadPath }} {{ end }}
</td>
</tr>
<tr><th>state</th><td x-text="state"></td></tr>
<tr x-show="playlist_total > 0"><th>playlist progress</th><td x-text="playlist_current + '/' + playlist_total"></td></tr>
<tr><th>progress</th><td x-text="percent"></td></tr>
<tr><th>ETA</th><td x-text="eta"></td></tr>
</table>
<p>You can close this window and your download will continue. Check the <a href="/" target="_gropple_status">Status page</a> to see all downloads in progress.</p>
{{ if .canStop }}
@@ -47,39 +35,9 @@
<script>
function popup() {
history.replaceState(null, '', ['/fetch/{{ .dl.Id }}'])
return {
return {
eta: '', percent: 0.0, state: '??', filename: '', finished: false, log :'',
playlist_current: 0, playlist_total: 0,
profile_chosen: null,
destination_chosen: null,
watch_profile() {
this.$watch('profile_chosen', value => this.profile_chosen(value))
},
update_profile(name) {
console.log('you chose name', this.profile_chosen);
let op = {
method: 'POST',
body: JSON.stringify({action: 'start', profile: this.profile_chosen}),
headers: { 'Content-Type': 'application/json' }
};
fetch('/rest/fetch/{{ .dl.Id }}', op)
.then(response => response.json())
.then(info => {
console.log(info)
})
},
update_destination(name) {
let op = {
method: 'POST',
body: JSON.stringify({action: 'change_destination', destination: this.destination_chosen}),
headers: { 'Content-Type': 'application/json' }
};
fetch('/rest/fetch/{{ .dl.Id }}', op)
.then(response => response.json())
.then(info => {
console.log(info)
})
},
stop() {
let op = {
method: 'POST',
@@ -101,13 +59,6 @@
this.state = info.state;
this.playlist_current = info.playlist_current;
this.playlist_total = info.playlist_total;
this.destination_chosen = null;
if (info.destination) {
this.destination_chosen = info.destination.name;
}
if (this.state != 'Choose Profile') {
this.profile_chosen = true;
}
this.finished = info.finished;
if (info.files && info.files.length > 0) {
this.filename = info.files[info.files.length - 1];

View File

@@ -0,0 +1,74 @@
{{ define "content" }}
<div id="layout" class="pure-g pure-u-1" x-data="popup_create()" >
<h2>Download create</h2>
<p>URL: <tt>{{ .url }}</tt></p>
<p class="error" x-show="error_message" x-transition.duration.500ms x-text="error_message"></p>
<table class="pure-table" >
<tr>
<th>profile</th>
<td>
<select class="pure-input-1-2" x-model="profile_chosen">
<option value="">choose a profile</option>
{{ range $i := .config.DownloadProfiles }}
<option>{{ $i.Name }}</option>
{{ end }}
</select>
</td>
</tr>
<tr>
<th>destination</th>
<td>
<select class="pure-input-1-2" x-model="destination_chosen">
<option value="">leave in {{ .config.Server.DownloadPath }}</option>
{{ range $i := .config.Destinations }}
<option>{{ $i.Name }}</option>
{{ end }}
</select>
</td>
</tr>
<tr>
<th>&nbsp;</th>
<td>
<button class="pure-button" @click="start()">start download</button>
</td>
</tr>
</table>
</div>
{{ end }}
{{ define "js" }}
<script>
function popup_create() {
return {
profile_chosen: "",
destination_chosen: "",
error_message: "",
start() {
let op = {
method: 'POST',
body: JSON.stringify({action: 'start', url: '{{ .url }}', profile: this.profile_chosen, destination: this.destination_chosen}),
headers: { 'Content-Type': 'application/json' }
};
fetch('/fetch', op)
.then(response => response.json())
.then(response => {
console.log(response)
if (response.error) {
this.error_message = response.error;
this.success_message = '';
document.body.scrollTop = document.documentElement.scrollTop = 0;
} else {
this.error_message = '';
console.log(response.location)
window.location = response.location
}
})
}
}
}
</script>
{{ end }}

410
web/web.go Normal file
View File

@@ -0,0 +1,410 @@
package web
import (
"embed"
"encoding/json"
"fmt"
"html/template"
"io"
"log"
"net/http"
"strconv"
"strings"
"github.com/gorilla/mux"
"github.com/tardisx/gropple/config"
"github.com/tardisx/gropple/download"
"github.com/tardisx/gropple/version"
)
type successResponse struct {
Success bool `json:"success"`
Message string `json:"message"`
}
type queuedResponse struct {
Success bool `json:"success"`
Location string `json:"location"`
}
type errorResponse struct {
Success bool `json:"success"`
Error string `json:"error"`
}
//go:embed data/**
var webFS embed.FS
func CreateRoutes(cs *config.ConfigService, dm *download.Manager, vm *version.Manager) *mux.Router {
r := mux.NewRouter()
// main index page
r.HandleFunc("/", homeHandler(cs, vm, dm))
// update info on the status page
r.HandleFunc("/rest/fetch", fetchInfoRESTHandler(dm))
// return static files
r.HandleFunc("/static/{filename}", staticHandler())
// return the config page
r.HandleFunc("/config", configHandler())
// handle config fetches/updates
r.HandleFunc("/rest/config", configRESTHandler(cs))
// create or present a download in the popup
r.HandleFunc("/fetch", fetchHandler(cs, vm, dm))
r.HandleFunc("/fetch/{id}", fetchHandler(cs, vm, dm))
// get/update info on a download
r.HandleFunc("/rest/fetch/{id}", fetchInfoOneRESTHandler(cs, dm))
// version information
r.HandleFunc("/rest/version", versionRESTHandler(vm))
http.Handle("/", r)
return r
}
// versionRESTHandler returns the version information, if we have up-to-date info from github
func versionRESTHandler(vm *version.Manager) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
if vm.GetInfo().GithubVersionFetched {
b, _ := json.Marshal(vm.GetInfo())
_, err := w.Write(b)
if err != nil {
log.Printf("could not write to client: %s", err)
}
} else {
w.WriteHeader(400)
}
}
}
// homeHandler returns the main index page
func homeHandler(cs *config.ConfigService, vm *version.Manager, dm *download.Manager) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
bookmarkletURL := fmt.Sprintf("javascript:(function(f,s,n,o){window.open(f+encodeURIComponent(s),n,o)}('%s/fetch?url=',window.location,'yourform','width=%d,height=%d'));", cs.Config.Server.Address, cs.Config.UI.PopupWidth, cs.Config.UI.PopupHeight)
t, err := template.ParseFS(webFS, "data/templates/layout.tmpl", "data/templates/menu.tmpl", "data/templates/index.tmpl")
if err != nil {
panic(err)
}
type Info struct {
Manager *download.Manager
BookmarkletURL template.URL
Config *config.Config
Version version.Info
}
info := Info{
Manager: dm,
BookmarkletURL: template.URL(bookmarkletURL),
Config: cs.Config,
Version: vm.GetInfo(),
}
dm.Lock.Lock()
defer dm.Lock.Unlock()
err = t.ExecuteTemplate(w, "layout", info)
if err != nil {
panic(err)
}
}
}
// staticHandler handles requests for static files
func staticHandler() func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
filename := vars["filename"]
if strings.Index(filename, ".js") == len(filename)-3 {
f, err := webFS.Open("data/js/" + filename)
if err != nil {
log.Printf("error accessing %s - %v", filename, err)
w.WriteHeader(http.StatusNotFound)
return
}
w.WriteHeader(http.StatusOK)
_, err = io.Copy(w, f)
if err != nil {
log.Printf("could not write to client: %s", err)
}
return
}
w.WriteHeader(http.StatusNotFound)
}
}
// configHandler returns the configuration page
func configHandler() func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
t, err := template.ParseFS(webFS, "data/templates/layout.tmpl", "data/templates/menu.tmpl", "data/templates/config.tmpl")
if err != nil {
panic(err)
}
err = t.ExecuteTemplate(w, "layout", nil)
if err != nil {
panic(err)
}
}
}
// configRESTHandler handles both reading and writing of the configuration
func configRESTHandler(cs *config.ConfigService) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
if r.Method == "POST" {
log.Printf("Updating config")
b, err := io.ReadAll(r.Body)
if err != nil {
panic(err)
}
err = cs.Config.UpdateFromJSON(b)
if err != nil {
errorRes := errorResponse{Success: false, Error: err.Error()}
errorResB, _ := json.Marshal(errorRes)
w.WriteHeader(400)
_, err = w.Write(errorResB)
if err != nil {
log.Printf("could not write to client: %s", err)
}
return
}
cs.WriteConfig()
}
b, _ := json.Marshal(cs.Config)
_, err := w.Write(b)
if err != nil {
log.Printf("could not write config to client: %s", err)
}
}
}
func fetchInfoOneRESTHandler(cs *config.ConfigService, dm *download.Manager) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
idString := vars["id"]
if idString != "" {
id, err := strconv.Atoi(idString)
if err != nil {
http.NotFound(w, r)
return
}
thisDownload, err := dm.GetDlById(id)
if err != nil {
http.NotFound(w, r)
return
}
if thisDownload == nil {
panic("should not happen")
}
if r.Method == "POST" {
type updateRequest struct {
Action string `json:"action"`
}
thisReq := updateRequest{}
b, err := io.ReadAll(r.Body)
if err != nil {
panic(err)
}
err = json.Unmarshal(b, &thisReq)
if err != nil {
errorRes := errorResponse{Success: false, Error: err.Error()}
errorResB, _ := json.Marshal(errorRes)
w.WriteHeader(400)
_, err = w.Write(errorResB)
if err != nil {
log.Printf("could not write to client: %s", err)
}
return
}
if thisReq.Action == "stop" {
thisDownload.Stop()
succRes := successResponse{Success: true, Message: "download stopped"}
succResB, _ := json.Marshal(succRes)
_, err = w.Write(succResB)
if err != nil {
log.Printf("could not write to client: %s", err)
}
return
}
}
// just a get, return the object
thisDownload.Lock.Lock()
defer thisDownload.Lock.Unlock()
b, _ := json.Marshal(thisDownload)
_, err = w.Write(b)
if err != nil {
log.Printf("could not write to client: %s", err)
}
return
} else {
http.NotFound(w, r)
}
}
}
func fetchInfoRESTHandler(dm *download.Manager) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
b, err := dm.DownloadsAsJSON()
if err != nil {
panic(err)
}
_, err = w.Write(b)
if err != nil {
log.Printf("could not write to client: %s", err)
}
}
}
// fetchHandler shows the popup, either the initial form (for create) or the form when in
// progress (to be updated by REST) - this is determined by GET vs POST
func fetchHandler(cs *config.ConfigService, vm *version.Manager, dm *download.Manager) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
log.Printf("fetchHandler ")
method := r.Method
// if they refreshed the popup, just load the existing object, don't
// create a new one
vars := mux.Vars(r)
idString := vars["id"]
idInt, idOK := strconv.ParseInt(idString, 10, 32)
if method == "GET" && idOK == nil && idInt > 0 {
// existing, load it up
log.Printf("loading popup for id %d", idInt)
dl, err := dm.GetDlById(int(idInt))
if err != nil {
log.Printf("not found")
w.WriteHeader(404)
return
}
t, err := template.ParseFS(webFS, "data/templates/layout.tmpl", "data/templates/popup.tmpl")
if err != nil {
panic(err)
}
templateData := map[string]interface{}{"dl": dl, "config": cs.Config, "canStop": download.CanStopDownload}
err = t.ExecuteTemplate(w, "layout", templateData)
if err != nil {
panic(err)
}
return
} else if method == "POST" {
// creating a new one
type reqType struct {
URL string `json:"url"`
ProfileChosen string `json:"profile"`
DestinationChosen string `json:"destination"`
}
req := reqType{}
json.NewDecoder(r.Body).Decode(&req)
log.Printf("popup POST request: %#v", req)
if req.URL == "" {
w.WriteHeader(400)
json.NewEncoder(w).Encode(errorResponse{
Success: false,
Error: "No URL supplied",
})
return
} else {
if req.ProfileChosen == "" {
w.WriteHeader(400)
json.NewEncoder(w).Encode(errorResponse{
Success: false,
Error: "you must choose a profile",
})
return
}
profile := cs.Config.ProfileCalled(req.ProfileChosen)
if profile == nil {
w.WriteHeader(400)
json.NewEncoder(w).Encode(errorResponse{
Success: false,
Error: fmt.Sprintf("no such profile: '%s'", req.ProfileChosen),
})
return
}
destination := cs.Config.DestinationCalled(req.DestinationChosen)
if req.DestinationChosen != "" && destination == nil {
w.WriteHeader(400)
json.NewEncoder(w).Encode(errorResponse{
Success: false,
Error: fmt.Sprintf("no such destination: '%s'", req.DestinationChosen),
})
return
}
// create the new download
newDL := download.NewDownload(req.URL, cs.Config)
id := newDL.Id
newDL.Destination = destination
newDL.DownloadProfile = *profile
dm.AddDownload(newDL)
dm.Queue(newDL)
w.WriteHeader(200)
json.NewEncoder(w).Encode(queuedResponse{
Success: true,
Location: fmt.Sprintf("/fetch/%d", id),
})
}
} else {
// a GET, show the popup so they can start the download (or just close
// the popup if they didn't mean it)
log.Print("loading popup for a new download")
query := r.URL.Query()
url, present := query["url"]
if !present {
w.WriteHeader(400)
fmt.Fprint(w, "No url supplied")
return
}
t, err := template.ParseFS(webFS, "data/templates/layout.tmpl", "data/templates/popup_create.tmpl")
if err != nil {
panic(err)
}
templateData := map[string]interface{}{"config": cs.Config, "url": url[0]}
err = t.ExecuteTemplate(w, "layout", templateData)
if err != nil {
panic(err)
}
}
}
}