lan
accc6567f2
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Refactor the gRPC client and task handling logic to improve modularity, error handling, and observability. - Split `grpc/handler.go` into specialized handler files (login, classroom, exams, grades, schedule) to reduce complexity. - Replace standard `log` with `log/slog` throughout the project for structured logging. - Refactor `grpc/client.go` to use a thread-safe connection management pattern with `sync.RWMutex`. - Remove the legacy `service` package and HTTP server implementation, transitioning the application to a pure gRPC runner mode. - Clean up `config` and `pkg/errors` to remove unused utilities and simplify the API. - Improve error reporting in parsers and HTTP clients by checking response status codes.
109 lines
2.6 KiB
Go
109 lines
2.6 KiB
Go
package grpc
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import (
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"context"
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"encoding/json"
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"log/slog"
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"net/http"
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"net/http/cookiejar"
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"net/url"
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"time"
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"schedule_converter/auth"
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"schedule_converter/captcha"
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"schedule_converter/client"
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"schedule_converter/config"
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"schedule_converter/models"
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"schedule_converter/parser"
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apperr "schedule_converter/pkg/errors"
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)
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const (
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maxLoginRetries = 3
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loginRetryInterval = 3 * time.Second
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)
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func createHTTPClient() (*http.Client, error) {
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jar, err := cookiejar.New(nil)
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if err != nil {
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return nil, apperr.New("create_jar", err, "创建 cookie jar 失败")
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}
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return &http.Client{Jar: jar}, nil
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}
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func setTWFIDCookie(httpClient *http.Client, baseURL, twfid string) {
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cfg := config.Get()
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if twfid == "" {
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twfid = cfg.TWFID
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}
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u, err := url.Parse(baseURL)
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if err != nil {
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slog.Warn("解析 baseURL 失败，无法设置 TWFID cookie", "base_url", baseURL, "error", err)
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return
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}
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httpClient.Jar.SetCookies(u, []*http.Cookie{
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{Name: "TWFID", Value: twfid},
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})
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}
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func executeLogin(ctx context.Context, httpClient *http.Client, username, password string) error {
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log := slog.With("username", username)
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if err := client.GetInitialCookiesWithClient(httpClient); err != nil {
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return apperr.New("get_cookies", err, "获取初始 Cookie 失败")
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}
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for attempt := 1; attempt <= maxLoginRetries; attempt++ {
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select {
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case <-ctx.Done():
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return ctx.Err()
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default:
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}
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log.Info("尝试登录", "attempt", attempt, "max_retries", maxLoginRetries)
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captchaCode, err := captcha.GetAndRecognize(httpClient)
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if err != nil {
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log.Warn("验证码获取失败", "error", err, "attempt", attempt)
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time.Sleep(loginRetryInterval)
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continue
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}
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success, err := auth.LoginWithClient(httpClient, captchaCode, username, password)
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if err != nil {
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log.Warn("登录请求失败", "error", err, "attempt", attempt)
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time.Sleep(loginRetryInterval)
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continue
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}
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if success {
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return nil
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}
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log.Warn("登录验证失败", "attempt", attempt)
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time.Sleep(loginRetryInterval)
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}
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return apperr.ErrLoginFailed
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}
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func executeLoginAndFetchSchedule(ctx context.Context, httpClient *http.Client, username, password, semester string) ([]models.Course, error) {
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if err := executeLogin(ctx, httpClient, username, password); err != nil {
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return nil, err
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}
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cfg := config.Get()
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if semester == "" {
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semester = cfg.Semester
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}
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return parser.FetchScheduleWithClient(httpClient, semester)
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}
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func unmarshalPayload(payload []byte, v any) error {
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if err := json.Unmarshal(payload, v); err != nil {
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return apperr.New("parse_payload", err, "解析任务载荷失败")
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}
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return nil
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}
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