63 lines
1.8 KiB
Go
63 lines
1.8 KiB
Go
package auth
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import (
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"fmt"
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"golang.org/x/oauth2"
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)
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var _ Provider = (*Discord)(nil)
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// NameDiscord is the unique name of the Discord provider.
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const NameDiscord string = "discord"
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// Discord allows authentication via Discord OAuth2.
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type Discord struct {
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*baseProvider
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}
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// NewDiscordProvider creates a new Discord provider instance with some defaults.
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func NewDiscordProvider() *Discord {
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// https://discord.com/developers/docs/topics/oauth2
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// https://discord.com/developers/docs/resources/user#get-current-user
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return &Discord{&baseProvider{
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scopes: []string{"identify", "email"},
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authUrl: "https://discord.com/api/oauth2/authorize",
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tokenUrl: "https://discord.com/api/oauth2/token",
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userApiUrl: "https://discord.com/api/users/@me",
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}}
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}
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// FetchAuthUser returns an AuthUser instance from Discord's user api.
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func (p *Discord) FetchAuthUser(token *oauth2.Token) (*AuthUser, error) {
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// https://discord.com/developers/docs/resources/user#user-object
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rawData := struct {
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Id string `json:"id"`
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Username string `json:"username"`
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Discriminator string `json:"discriminator"`
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Email string `json:"email"`
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Avatar string `json:"avatar"`
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}{}
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if err := p.FetchRawUserData(token, &rawData); err != nil {
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return nil, err
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}
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// Build a full avatar URL using the avatar hash provided in the API response
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// https://discord.com/developers/docs/reference#image-formatting
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avatarUrl := fmt.Sprintf("https://cdn.discordapp.com/avatars/%s/%s.png", rawData.Id, rawData.Avatar)
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// Concatenate the user's username and discriminator into a single username string
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username := fmt.Sprintf("%s#%s", rawData.Username, rawData.Discriminator)
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user := &AuthUser{
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Id: rawData.Id,
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Name: username,
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Username: rawData.Username,
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Email: rawData.Email,
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AvatarUrl: avatarUrl,
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}
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return user, nil
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}
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