88 lines
2.3 KiB
Go
88 lines
2.3 KiB
Go
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package telebot
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import (
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"io"
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"os"
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)
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// File object represents any sort of file.
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type File struct {
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FileID string `json:"file_id"`
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UniqueID string `json:"file_unique_id"`
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FileSize int64 `json:"file_size"`
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// FilePath is used for files on Telegram server.
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FilePath string `json:"file_path"`
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// FileLocal is used for files on local file system.
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FileLocal string `json:"file_local"`
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// FileURL is used for file on the internet.
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FileURL string `json:"file_url"`
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// FileReader is used for file backed with io.Reader.
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FileReader io.Reader `json:"-"`
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fileName string
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}
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// FromDisk constructs a new local (on-disk) file object.
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//
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// Note, it returns File, not *File for a very good reason:
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// in telebot, File is pretty much an embeddable struct,
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// so upon uploading media you'll need to set embedded File
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// with something. NewFile() returning File makes it a one-liner.
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//
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// photo := &tele.Photo{File: tele.FromDisk("chicken.jpg")}
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//
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func FromDisk(filename string) File {
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return File{FileLocal: filename}
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}
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// FromURL constructs a new file on provided HTTP URL.
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//
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// Note, it returns File, not *File for a very good reason:
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// in telebot, File is pretty much an embeddable struct,
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// so upon uploading media you'll need to set embedded File
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// with something. NewFile() returning File makes it a one-liner.
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//
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// photo := &tele.Photo{File: tele.FromURL("https://site.com/picture.jpg")}
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//
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func FromURL(url string) File {
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return File{FileURL: url}
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}
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// FromReader constructs a new file from io.Reader.
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//
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// Note, it returns File, not *File for a very good reason:
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// in telebot, File is pretty much an embeddable struct,
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// so upon uploading media you'll need to set embedded File
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// with something. NewFile() returning File makes it a one-liner.
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//
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// photo := &tele.Photo{File: tele.FromReader(bytes.NewReader(...))}
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//
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func FromReader(reader io.Reader) File {
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return File{FileReader: reader}
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}
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func (f *File) stealRef(g *File) {
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if g.OnDisk() {
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f.FileLocal = g.FileLocal
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}
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if g.FileURL != "" {
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f.FileURL = g.FileURL
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}
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}
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// InCloud tells whether the file is present on Telegram servers.
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func (f *File) InCloud() bool {
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return f.FileID != ""
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}
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// OnDisk will return true if file is present on disk.
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func (f *File) OnDisk() bool {
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_, err := os.Stat(f.FileLocal)
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return err == nil
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}
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