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package oauth |
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import ( |
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"bytes" |
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"context" |
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"fmt" |
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"io" |
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"net/http" |
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"github.com/memnix/memnix-rest/config" |
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"github.com/memnix/memnix-rest/infrastructures" |
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"github.com/memnix/memnix-rest/views" |
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"github.com/pkg/errors" |
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"github.com/uptrace/opentelemetry-go-extra/otelzap" |
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"go.opentelemetry.io/otel/attribute" |
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"go.opentelemetry.io/otel/trace" |
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"go.uber.org/zap" |
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) |
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const ( |
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discordTokenURL = "https://discord.com/api/oauth2/token" |
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discordAPIURL = "https://discord.com/api/users/@me" |
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) |
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// Represents the response received from Discord |
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type discordAccessTokenResponse struct { |
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AccessToken string `json:"access_token"` |
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TokenType string `json:"token_type"` |
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Scope string `json:"scope"` |
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Expires int `json:"expires_in"` |
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RefreshToken string `json:"refresh_token"` |
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} |
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// GetDiscordAccessToken gets the access token from Discord |
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func GetDiscordAccessToken(ctx context.Context, code string) (string, error) { |
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_, span := infrastructures.GetFiberTracer().Start(ctx, "GetDiscordAccessToken") |
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defer span.End() |
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reqBody := bytes.NewBuffer([]byte(fmt.Sprintf( |
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"client_id=%s&client_secret=%s&grant_type=authorization_code&redirect_uri=%s&code=%s&scope=identify,email", |
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infrastructures.AppConfig.DiscordConfig.ClientID, |
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infrastructures.AppConfig.DiscordConfig.ClientSecret, |
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config.GetCurrentURL()+"/v2/security/discord_callback", |
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code, |
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))) |
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// POST request to set URL |
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req, err := http.NewRequestWithContext(ctx, |
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http.MethodPost, |
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discordTokenURL, |
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reqBody, |
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) |
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if err != nil { |
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otelzap.Ctx(ctx).Error("Failed to get Discord access token", zap.Error(err)) |
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return "", errors.Wrap(err, views.RequestFailed) |
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} |
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if req == nil || req.Body == nil || req.Header == nil { |
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otelzap.Ctx(ctx).Error("Failed to get Discord access token", zap.Error(err)) |
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return "", errors.New(views.RequestFailed) |
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} |
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req.Header.Set("Content-Type", "application/x-www-form-urlencoded") |
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req.Header.Set("Accept", "application/json") |
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// Get the response |
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resp, resperr := http.DefaultClient.Do(req) |
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if resperr != nil { |
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otelzap.Ctx(ctx).Error("Failed to get Discord access token", zap.Error(resperr)) |
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return "", errors.Wrap(resperr, views.ResponseFailed) |
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} |
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defer func(resp *http.Response) { |
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if resp != nil && resp.Body != nil { |
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resp.Body.Close() |
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} |
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}(resp) |
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// Response body converted to stringified JSON |
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respbody, err := io.ReadAll(resp.Body) |
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if err != nil { |
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otelzap.Ctx(ctx).Error("failed to read resp.body", zap.Error(err)) |
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return "", err |
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} |
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// Convert stringified JSON to a struct object of type githubAccessTokenResponse |
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var ghresp discordAccessTokenResponse |
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err = config.JSONHelper.Unmarshal(respbody, &ghresp) |
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if err != nil { |
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return "", err |
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} |
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span.AddEvent("Discord access token received", trace.WithAttributes(attribute.String("access_token", ghresp.AccessToken))) |
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// Return the access token (as the rest of the |
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// details are relatively unnecessary for us) |
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return ghresp.AccessToken, nil |
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} |
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// GetDiscordData gets the user data from Discord |
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func GetDiscordData(ctx context.Context, accessToken string) (string, error) { |
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_, span := infrastructures.GetFiberTracer().Start(ctx, "GetDiscordData") |
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defer span.End() |
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req, err := http.NewRequestWithContext(ctx, |
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http.MethodGet, |
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discordAPIURL, |
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nil, |
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) |
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if err != nil { |
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return "", errors.Wrap(err, views.RequestFailed) |
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} |
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req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", accessToken)) |
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// Get the response |
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resp, err := http.DefaultClient.Do(req) |
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if err != nil { |
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return "", errors.Wrap(err, views.ResponseFailed) |
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} |
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defer resp.Body.Close() |
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// Response body converted to stringified JSON |
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respbody, err := io.ReadAll(resp.Body) |
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if err != nil { |
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return "", err |
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} |
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span.AddEvent("Discord user data received", trace.WithAttributes(attribute.String("user_data", string(respbody)))) |
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return string(respbody), nil |
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} |
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memnix /
memnix-rest
