const (
    DefaultTokenURI   = "https://accounts.google.com/o/oauth2/token"
    DefaultListenAddr = ":8080"
    AuthHeader        = "Gifs-Username"
)

var (
    BucketNotFoundError = errors.New("bucket not found")
    BlobNotFoundError   = errors.New("blob not found")
)

var (
    CollectionNotFoundError = errors.New("collection not found")
)

var (
    InvalidBearerToken = errors.New("Invalid bearer token")
)

func CollectionList(w http.ResponseWriter, r *http.Request, c Context)

func CreateCollection(w http.ResponseWriter, r *http.Request, c Context)

func GetBlob(w http.ResponseWriter, r *http.Request, c Context)

func GetDomainMuxer(c Context) *mux.Router

func GetPathMuxer(c Context) *mux.Router

func Upload(id, collection, tag string, r io.Reader, c Context) (string, error)

func UploadHandler(w http.ResponseWriter, r *http.Request, c Context)

type Authorizer interface {
    Authorize(token string, c Context) (string, error)
}

type Bucket map[string][]byte

type Collection struct {
    Items map[string]Item
    Name  string
    Slug  string
}

type Context struct {
    Storage      Storage
    Datastore    Datastore
    UsageTracker *UsageTracker
    Authorizer   Authorizer
    Bucket       string
    RootDomain   string
}

type Datastore interface {
    Init(dbName string) error
    CreateCollection(slug, name string) (Collection, error)
    UpdateCollection(slug, name string) error
    GetCollectionData(slug string) (Collection, error)
    GetCollectionItems(slug string) (map[string]Item, error)
    AddItemToCollection(slug string, item Item) error
    GetItemFromCollection(slug, tag string) (Item, error)
}

func NewMemDatastore() Datastore

func NewMySQLDatastore(dsn string) (Datastore, error)

type GoogleCloudStorage struct {
    *storage.Service
}

func (gcs *GoogleCloudStorage) Delete(bucket, tmp string) error

func (gcs *GoogleCloudStorage) Download(bucket, id string, w io.Writer, c Context) (int64, error)

func (gcs *GoogleCloudStorage) Move(srcBucket, src, dstBucket, dst string, c Context) error

func (gcs *GoogleCloudStorage) Upload(bucket, tmp string, r io.Reader, c Context, errs chan error, done chan struct{})

type GoogleOAuth2Authorizer struct {
    ClientID string

    sync.Mutex
    // contains filtered or unexported fields
}

func NewGoogleOAuth2Authorizer(id string) *GoogleOAuth2Authorizer

func (g *GoogleOAuth2Authorizer) Authorize(token string, c Context) (string, error)

type Handler func(w http.ResponseWriter, r *http.Request, c Context)

type Item struct {
    Blob   string
    Bucket string
    Tag    string
}

type Memstorage map[string]Bucket

func (m Memstorage) Delete(bucket, tmp string) error

func (m Memstorage) Download(bucket, id string, w io.Writer, c Context) (int64, error)

func (m Memstorage) Move(srcBucket, src, dstBucket, dst string, c Context) error

func (m Memstorage) Upload(bucket, tmp string, r io.Reader, c Context, errs chan error, done chan struct{})

type Memstore map[string]*Collection

func (m Memstore) AddItemToCollection(slug string, item Item) error

func (m Memstore) CreateCollection(slug, name string) (Collection, error)

func (m Memstore) GetCollectionData(slug string) (Collection, error)

func (m Memstore) GetCollectionItems(slug string) (map[string]Item, error)

func (m Memstore) GetItemFromCollection(slug, tag string) (Item, error)

func (m Memstore) Init(dbName string) error

func (m Memstore) UpdateCollection(slug, name string) error

type SQLStore sql.DB

func (s *SQLStore) AddItemToCollection(slug string, item Item) error

func (s *SQLStore) CreateCollection(slug, name string) (Collection, error)

func (s *SQLStore) GetCollectionData(slug string) (Collection, error)

func (s *SQLStore) GetCollectionItems(slug string) (map[string]Item, error)

func (s *SQLStore) GetItemFromCollection(slug, tag string) (Item, error)

func (s *SQLStore) Init(name string) error

func (s *SQLStore) UpdateCollection(slug, name string) error

type Storage interface {
    Upload(bucket, tmp string, r io.Reader, c Context, errs chan error, done chan struct{})
    Delete(bucket, tmp string) error
    Move(srcBucket, src, dstBucket, dst string, c Context) error
    Download(bucket, id string, w io.Writer, c Context) (int64, error)
}

func NewGCSStorage(gcsClientEmail, gcsTokenURI string, gcsPemBytes []byte) (Storage, error)

func NewMemStorage() Storage

type Usage struct {
    UploadedBytes        int64
    UploadBytesChan      chan int64
    DownloadedBytes      int64
    DownloadBytesChan    chan int64
    UploadRequests       int64
    UploadRequestsChan   chan int64
    DownloadRequests     int64
    DownloadRequestsChan chan int64
}

type UsageTracker struct {
    sync.Mutex
    // contains filtered or unexported fields
}

func NewUsageTracker() *UsageTracker

func (u *UsageTracker) TrackDownloads(id string) (bytes, requests chan int64)

func (u *UsageTracker) TrackUploads(id string) (bytes, requests chan int64)