120 lines
3.3 KiB
Go
120 lines
3.3 KiB
Go
package webserver
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import (
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"gitlab.com/offline-twitter/twitter_offline_engine/pkg/scraper"
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)
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type LoginData struct {
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LoginForm
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ExistingSessions []scraper.UserHandle
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}
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type LoginForm struct {
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Username string `json:"username"`
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Password string `json:"password"`
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FormErrors
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}
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type FormErrors map[string]string
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func (f *LoginForm) Validate() {
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if f.FormErrors == nil {
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f.FormErrors = make(FormErrors)
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}
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if len(f.Username) == 0 {
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f.FormErrors["username"] = "cannot be blank"
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}
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if len(f.Password) == 0 {
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f.FormErrors["password"] = "cannot be blank"
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}
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}
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func (app *Application) Login(w http.ResponseWriter, r *http.Request) {
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app.traceLog.Printf("'Login' handler (path: %q)", r.URL.Path)
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var form LoginForm
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if r.Method == "POST" {
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data, err := io.ReadAll(r.Body)
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panic_if(err)
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panic_if(json.Unmarshal(data, &form)) // TODO: HTTP 400 not 500
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form.Validate()
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if len(form.FormErrors) == 0 {
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api := scraper.NewGuestSession()
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challenge := api.LogIn(form.Username, form.Password)
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if challenge != nil {
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panic( // Middleware will trap this panic and return an HTMX error toast
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"Twitter challenged your login. Make sure your username is your user handle (not email). " +
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"If you're logging in from a new device, try doing it on the official Twitter site first, then try again here.")
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}
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app.after_login(w, r, api)
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}
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return
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}
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// method == "GET"
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data := LoginData{
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LoginForm: form,
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ExistingSessions: app.Profile.ListSessions(),
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}
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app.buffered_render_page(w, "tpl/login.tpl", PageGlobalData{}, &data)
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}
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func (app *Application) after_login(w http.ResponseWriter, r *http.Request, api scraper.API) {
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app.Profile.SaveSession(api)
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// Ensure the user is downloaded
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user, err := scraper.GetUser(api.UserHandle)
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if err != nil {
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app.error_404(w)
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return
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}
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panic_if(app.Profile.SaveUser(&user))
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panic_if(app.Profile.DownloadUserContentFor(&user))
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// Now that the user is scraped for sure, set them as the logged-in user
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err = app.SetActiveUser(api.UserHandle)
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panic_if(err)
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// Scrape the user's feed
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trove, err := scraper.GetHomeTimeline("", true)
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if err != nil {
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app.ErrorLog.Printf("Initial timeline scrape failed: %s", err.Error())
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http.Redirect(w, r, "/", 303)
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}
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fmt.Println("Saving initial feed results...")
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app.Profile.SaveTweetTrove(trove, false)
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go app.Profile.SaveTweetTrove(trove, true)
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// Scrape the user's followers
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trove, err = scraper.GetFollowees(user.ID, 1000)
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if err != nil {
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app.ErrorLog.Printf("Failed to scrape followers: %s", err.Error())
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http.Redirect(w, r, "/", 303)
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}
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app.Profile.SaveTweetTrove(trove, false)
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app.Profile.SaveAsFolloweesList(user.ID, trove)
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go app.Profile.SaveTweetTrove(trove, true)
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// Redirect to Timeline
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http.Redirect(w, r, "/", 303)
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}
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func (app *Application) ChangeSession(w http.ResponseWriter, r *http.Request) {
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app.traceLog.Printf("'change-session' handler (path: %q)", r.URL.Path)
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form := struct {
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AccountName string `json:"account"`
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}{}
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data, err := io.ReadAll(r.Body)
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panic_if(err)
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panic_if(json.Unmarshal(data, &form)) // TODO: HTTP 400 not 500
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err = app.SetActiveUser(scraper.UserHandle(form.AccountName))
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if err != nil {
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app.error_400_with_message(w, fmt.Sprintf("User not in database: %s", form.AccountName))
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return
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}
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app.buffered_render_htmx(w, "nav-sidebar", PageGlobalData{}, nil)
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}
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