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README.md

tg-file-decoder

Decode Telegram bot API file IDs.

Install

composer require danog/tg-file-decoder

On 32-bit systems, phpseclib is also required.

Examples:

Decoding bot API file IDs

use danog\Decoder\FileId;
use danog\Decoder\UniqueFileId;

$fileId = FileId::fromBotAPI('CAACAgQAAxkDAAJEsl44nl3yxPZ8biI8uhaA7rbQceOSAAKtAQACsTisUXvMEbVnTuQkGAQ');

$version = $fileId->getVersion(); // bot API file ID version, usually 4
$subVersion = $fileId->getSubVersion(); // bot API file ID subversion, equivalent to a specific tdlib version

$dcId = $fileId->getDcId(); // On which datacenter is this file stored

$type = $fileId->getType(); // File type
$typeName = $fileId->getType(); // File type (as string)

$id = $fileId->getId();
$accessHash = $fileId->getAccessHash();

$fileReference = $fileId->getFileReference(); // File reference, https://core.telegram.org/api/file_reference
$url = $fileId->getUrl(); // URL, file IDs with encoded webLocation

// You can also use hasFileReference and hasUrl
$fileIdReencoded = $fileId->getBotAPI(); // CAACAgQAAxkDAAJEsl44nl3yxPZ8biI8uhaA7rbQceOSAAKtAQACsTisUXvMEbVnTuQkGAQ
$fileIdReencoded = (string) $fileId;     // CAACAgQAAxkDAAJEsl44nl3yxPZ8biI8uhaA7rbQceOSAAKtAQACsTisUXvMEbVnTuQkGAQ

// For photos, thumbnails if ($fileId->getType() <= PHOTO)
$volumeId = $fileId->getVolumeID();
$localId = $fileId->getLocalID();

// if $fileId->hasPhotoSizeSource()
$photoSizeSource = $fileId->getPhotoSizeSource(); // PhotoSizeSource object
$photoSizeSource->getDialogId();
$photoSizeSource->getStickerSetId();

// And more, depending on photosize source

The bot API subversion, present since file IDs v4, is equivalent to the version of tdlib used server-side in the bot API.

For file types, see file types. For photosize source, see here.

Decoding bot API unique file IDs

$uniqueFileId = UniqueFileId::fromUniqueBotAPI('AgADrQEAArE4rFE');

$type = $fileId->getType(); // Unique file type
$typeName = $fileId->getType(); // Unique file type (as string)

$id = $uniqueFileId->getId();
$accessHash = $uniqueFileId->getAccessHash();
$url = $uniqueFileId->getUrl(); // URL, for unique file IDs with encoded webLocation
// You can also use hasUrl

// For photos
$volumeId = $uniqueFileId->getVolumeID();
$localId = $uniqueFileId->getLocalID();

For unique file types, see unique types.

Extracting unique file IDs from full file IDs

$full = 'CAACAgQAAxkDAAJEsl44nl3yxPZ8biI8uhaA7rbQceOSAAKtAQACsTisUXvMEbVnTuQkGAQ';
$unique = 'AgADrQEAArE4rFE';

$fileId = FileId::fromBotAPI($full);
$uniqueFileId = UniqueFileId::fromUniqueBotAPI($unique);
$uniqueFileIdExtracted1 = UniqueFileId::fromBotAPI($full);

$uniqueFileIdExtracted2 = $fileId->getUniqueBotAPI();

var_dump(((string) $uniqueFileId) === ((string) $uniqueFileIdExtracted1)); // true, always AgADrQEAArE4rFE!
var_dump(((string) $uniqueFileId) === ((string) $uniqueFileIdExtracted2)); // true, always AgADrQEAArE4rFE!

Photosize source

$fileId = FileId::fromString('CAACAgQAAxkDAAJEsl44nl3yxPZ8biI8uhaA7rbQceOSAAKtAQACsTisUXvMEbVnTuQkGAQ');

$photoSizeSource = $fileId->getPhotoSizeSource(); // PhotoSizeSource object

$sourceType = $photoSizeSource->getType();

// If 
$dialogId = $photoSizeSource->getDialogId();
$dialogId = $photoSizeSource->getStickerSetId();

Building custom file IDs

$fileId = new FileId;

$fileId->setType(STICKER);
$fileId->setId($id);
$fileId->setAccessHash($customHash);

// You get it...

$encoded = (string) $fileId; // CAACAgQAAxkDAAJEsl44nl3yxPZ8biI8uhaA7rbQceOSAAKtAQACsTisUXvMEbVnTuQkGAQ, or something

All classes, from FileId, to UniqueFileID, to PhotoSizeSource can be built using set methods for each and every field.

Bot API unique file ID types

The file type is a numeric constant indicating the type of file, (the constant is always in the danog\Decoder namespace). The file type name is a string version of the file type, typically the one used in bot API file objects.

The TYPES array contains a file type => file type name map. The TYPES_IDS array contains a file type name => file type map.

const CONSTANTNAME = value - Description (type name)

  • const THUMBNAIL = 0 - Thumbnail (thumbnail)
  • const PROFILE_PHOTO = 1 - Profile photo; used for users, supergroups and channels, chat photos are normal PHOTOs (profile_photo)
  • const PHOTO = 2 - Photo (photo)
  • const VOICE = 3 - Voice message (voice)
  • const VIDEO = 4 - Video (video)
  • const DOCUMENT = 5 - Document (document)
  • const ENCRYPTED = 6 - Secret chat document (encrypted)
  • const TEMP = 7 - Temp document (temp)
  • const STICKER = 8 - Sticker (sticker)
  • const AUDIO = 9 - Music (audio)
  • const ANIMATION = 10 - GIF (animation)
  • const ENCRYPTED_THUMBNAIL = 11 - Thumbnail of secret chat document (encrypted_thumbnail)
  • const WALLPAPER = 12 - Wallpaper (wallpaper)
  • const VIDEO_NOTE = 13 - Round video (video_note)
  • const SECURE_RAW = 14 - Passport raw file (secure_raw)
  • const SECURE = 15 - Passport file (secure)
  • const WALLPAPER = 16 - Background (background)
  • const WALLPAPER = 17 - Size (size)
  • const NONE = 18 -

Full API documentation

FileId

Represents decoded bot API file ID.

  • Full name: \danog\Decoder\FileId

fromBotAPI

Decode file ID from bot API file ID.

FileId::fromBotAPI( string $fileId ): self
  • This method is static. Parameters:
Parameter Type Description
$fileId string File ID

getBotAPI

Get bot API file ID.

FileId::getBotAPI(  ): string

getUnique

Get unique file ID from file ID.

FileId::getUnique(  ): \danog\Decoder\UniqueFileId

__toString

Get bot API file ID.

FileId::__toString(  ): string

getVersion

Get bot API file ID version.

FileId::getVersion(  ): integer

setVersion

Set bot API file ID version.

FileId::setVersion( integer $_version ): self

Parameters:

Parameter Type Description
$_version integer Bot API file ID version.

getSubVersion

Get bot API file ID subversion.

FileId::getSubVersion(  ): integer

setSubVersion

Set bot API file ID subversion.

FileId::setSubVersion( integer $_subVersion ): self

Parameters:

Parameter Type Description
$_subVersion integer Bot API file ID subversion.

getType

Get file type.

FileId::getType(  ): integer

getTypeName

Get file type as string.

FileId::getTypeName(  ): string

setType

Set file type.

FileId::setType( integer $_type ): self

Parameters:

Parameter Type Description
$_type integer File type.

getFileReference

Get file reference.

FileId::getFileReference(  ): string

setFileReference

Set file reference.

FileId::setFileReference( string $_fileReference ): self

Parameters:

Parameter Type Description
$_fileReference string File reference.

hasFileReference

Check if has file reference.

FileId::hasFileReference(  ): boolean

getUrl

Get file URL for weblocation.

FileId::getUrl(  ): string

hasUrl

Check if has file URL.

FileId::hasUrl(  ): boolean

setUrl

Set file URL for weblocation.

FileId::setUrl( string $_url ): self

Parameters:

Parameter Type Description
$_url string File URL for weblocation.

getId

Get file id.

FileId::getId(  ): integer

setId

Set file id.

FileId::setId( integer $_id ): self

Parameters:

Parameter Type Description
$_id integer File id.

hasId

Check if has file id.

FileId::hasId(  ): boolean

getAccessHash

Get file access hash.

FileId::getAccessHash(  ): integer

setAccessHash

Set file access hash.

FileId::setAccessHash( integer $_accessHash ): self

Parameters:

Parameter Type Description
$_accessHash integer File access hash.

getVolumeId

Get photo volume ID.

FileId::getVolumeId(  ): integer

setVolumeId

Set photo volume ID.

FileId::setVolumeId( integer $_volumeId ): self

Parameters:

Parameter Type Description
$_volumeId integer Photo volume ID.

hasVolumeId

Check if has volume ID.

FileId::hasVolumeId(  ): boolean

getLocalId

Get photo local ID.

FileId::getLocalId(  ): integer

setLocalId

Set photo local ID.

FileId::setLocalId( integer $_localId ): self

Parameters:

Parameter Type Description
$_localId integer Photo local ID.

hasLocalId

Check if has local ID.

FileId::hasLocalId(  ): boolean

getPhotoSizeSource

Get photo size source.

FileId::getPhotoSizeSource(  ): \danog\Decoder\PhotoSizeSource

setPhotoSizeSource

Set photo size source.

FileId::setPhotoSizeSource( \danog\Decoder\PhotoSizeSource $_photoSizeSource ): self

Parameters:

Parameter Type Description
$_photoSizeSource \danog\Decoder\PhotoSizeSource Photo size source.

hasPhotoSizeSource

Check if has photo size source.

FileId::hasPhotoSizeSource(  ): boolean

getDcId

Get dC ID.

FileId::getDcId(  ): integer

setDcId

Set dC ID.

FileId::setDcId( integer $_dcId ): self

Parameters:

Parameter Type Description
$_dcId integer DC ID.

PhotoSizeSourceDialogPhoto

Represents source of photosize.

  • Full name: \danog\Decoder\PhotoSizeSource\PhotoSizeSourceDialogPhoto
  • Parent class: \danog\Decoder\PhotoSizeSource

setType

Get photosize source type.

PhotoSizeSourceDialogPhoto::setType( integer $type ): self

Parameters:

Parameter Type Description
$type integer Type

getDialogId

Get dialog ID.

PhotoSizeSourceDialogPhoto::getDialogId(  ): integer

setDialogId

Set dialog ID.

PhotoSizeSourceDialogPhoto::setDialogId( integer $id ): self

Parameters:

Parameter Type Description
$id integer Dialog ID

getDialogAccessHash

Get access hash of dialog.

PhotoSizeSourceDialogPhoto::getDialogAccessHash(  ): integer

setDialogAccessHash

Set access hash of dialog.

PhotoSizeSourceDialogPhoto::setDialogAccessHash( integer $dialogAccessHash ): self

Parameters:

Parameter Type Description
$dialogAccessHash integer Access hash of dialog

isSmallDialogPhoto

Get whether the big or small version of the photo is being used.

PhotoSizeSourceDialogPhoto::isSmallDialogPhoto(  ): boolean

setDialogPhotoSmall

Set whether the big or small version of the photo is being used.

PhotoSizeSourceDialogPhoto::setDialogPhotoSmall( boolean $_dialogPhotoSmall ): self

Parameters:

Parameter Type Description
$_dialogPhotoSmall boolean Whether the big or small version of the photo is being used

PhotoSizeSourceLegacy

Represents source of photosize.

  • Full name: \danog\Decoder\PhotoSizeSource\PhotoSizeSourceLegacy
  • Parent class: \danog\Decoder\PhotoSizeSource

setType

Get photosize source type.

PhotoSizeSourceLegacy::setType( integer $type ): self

Parameters:

Parameter Type Description
$type integer Type

getSecret

Get secret legacy ID.

PhotoSizeSourceLegacy::getSecret(  ): integer

setSecret

Set secret legacy ID.

PhotoSizeSourceLegacy::setSecret( integer $_secret ): self

Parameters:

Parameter Type Description
$_secret integer Secret legacy ID

PhotoSizeSourceStickersetThumbnail

Represents source of photosize.

  • Full name: \danog\Decoder\PhotoSizeSource\PhotoSizeSourceStickersetThumbnail
  • Parent class: \danog\Decoder\PhotoSizeSource

setType

Get photosize source type.

PhotoSizeSourceStickersetThumbnail::setType( integer $type ): self

Parameters:

Parameter Type Description
$type integer Type

getStickerSetId

Get stickerset ID.

PhotoSizeSourceStickersetThumbnail::getStickerSetId(  ): integer

setStickerSetId

Set stickerset ID.

PhotoSizeSourceStickersetThumbnail::setStickerSetId( integer $_stickerSetId ): self

Parameters:

Parameter Type Description
$_stickerSetId integer Stickerset ID

getStickerSetAccessHash

Get stickerset access hash.

PhotoSizeSourceStickersetThumbnail::getStickerSetAccessHash(  ): integer

setStickerSetAccessHash

Set stickerset access hash.

PhotoSizeSourceStickersetThumbnail::setStickerSetAccessHash( integer $_stickerSetAccessHash ): self

Parameters:

Parameter Type Description
$_stickerSetAccessHash integer Stickerset access hash

PhotoSizeSourceThumbnail

Represents source of photosize.

  • Full name: \danog\Decoder\PhotoSizeSource\PhotoSizeSourceThumbnail
  • Parent class: \danog\Decoder\PhotoSizeSource

setType

Get photosize source type.

PhotoSizeSourceThumbnail::setType( integer $type ): self

Parameters:

Parameter Type Description
$type integer Type

getThumbFileType

Get file type of original file.

PhotoSizeSourceThumbnail::getThumbFileType(  ): integer

getThumbFileTypeString

Get file type of original file as string.

PhotoSizeSourceThumbnail::getThumbFileTypeString(  ): string

setThumbFileType

Set file type of original file.

PhotoSizeSourceThumbnail::setThumbFileType( integer $_thumbFileType ): self

Parameters:

Parameter Type Description
$_thumbFileType integer File type of original file

getThumbType

Get thumbnail size.

PhotoSizeSourceThumbnail::getThumbType(  ): string

setThumbType

Set thumbnail size.

PhotoSizeSourceThumbnail::setThumbType( string $_thumbType ): self

Parameters:

Parameter Type Description
$_thumbType string Thumbnail size

UniqueFileId

Represents decoded unique bot API file ID.

  • Full name: \danog\Decoder\UniqueFileId

__toString

Get unique bot API file ID.

UniqueFileId::__toString(  ): string

getUniqueBotAPI

Get unique bot API file ID.

UniqueFileId::getUniqueBotAPI(  ): string

fromUniqueBotAPI

Decode unique bot API file ID.

UniqueFileId::fromUniqueBotAPI( string $fileId ): self
  • This method is static. Parameters:
Parameter Type Description
$fileId string Bot API file ID

fromBotAPI

Convert full bot API file ID to unique file ID.

UniqueFileId::fromBotAPI( string $fileId ): self
  • This method is static. Parameters:
Parameter Type Description
$fileId string Full bot API file ID

fromFileId

Turn full file ID into unique file ID.

UniqueFileId::fromFileId( \danog\Decoder\FileId $fileId ): self
  • This method is static. Parameters:
Parameter Type Description
$fileId \danog\Decoder\FileId Full file ID

getTypeName

Get unique file type as string.

UniqueFileId::getTypeName(  ): string

getType

Get unique file type.

UniqueFileId::getType(  ): integer

setType

Set file type.

UniqueFileId::setType( integer $_type ): self

Parameters:

Parameter Type Description
$_type integer File type.

getId

Get file ID.

UniqueFileId::getId(  ): integer

setId

Set file ID.

UniqueFileId::setId( integer $_id ): self

Parameters:

Parameter Type Description
$_id integer File ID.

hasId

Check if has ID.

UniqueFileId::hasId(  ): boolean

getVolumeId

Get photo volume ID.

UniqueFileId::getVolumeId(  ): integer

setVolumeId

Set photo volume ID.

UniqueFileId::setVolumeId( integer $_volumeId ): self

Parameters:

Parameter Type Description
$_volumeId integer Photo volume ID.

hasVolumeId

Check if has volume ID.

UniqueFileId::hasVolumeId(  ): boolean

getLocalId

Get photo local ID.

UniqueFileId::getLocalId(  ): integer

setLocalId

Set photo local ID.

UniqueFileId::setLocalId( integer $_localId ): self

Parameters:

Parameter Type Description
$_localId integer Photo local ID.

hasLocalId

Check if has local ID.

UniqueFileId::hasLocalId(  ): boolean

getUrl

Get weblocation URL.

UniqueFileId::getUrl(  ): string

setUrl

Set weblocation URL.

UniqueFileId::setUrl( string $_url ): self

Parameters:

Parameter Type Description
$_url string Weblocation URL

hasUrl

Check if has weblocation URL.

UniqueFileId::hasUrl(  ): boolean

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