Implemented new one InputFile interface for sending local files.

aiogram/bot/api.py

@@ -5,6 +5,7 @@ from http import HTTPStatus
 
 import aiohttp
 
+from .. import types
 from ..utils import exceptions
 from ..utils import json
 from ..utils.helper import Helper, HelperMode, Item
@@ -113,6 +114,8 @@ def _compose_data(params=None, files=None):
                     filename, fileobj = f
                 else:
                     raise ValueError('Tuple must have exactly 2 elements: filename, fileobj')
+            elif isinstance(f, types.InputFile):
+                filename, fileobj = f.get_filename(), f.get_file()
             else:
                 filename, fileobj = _guess_filename(f) or key, f
 

aiogram/types/base.py

@@ -13,7 +13,7 @@ ALIASES_ATTR_NAME = '_aliases'
 __all__ = ('MetaTelegramObject', 'TelegramObject')
 
 # Binding of builtin types
-InputFile = TypeVar('InputFile', io.BytesIO, io.FileIO, str)
+InputFile = TypeVar('InputFile', 'InputFile', io.BytesIO, io.FileIO, str)
 String = TypeVar('String', bound=str)
 Integer = TypeVar('Integer', bound=int)
 Float = TypeVar('Float', bound=float)

aiogram/types/input_file.py

@@ -1,7 +1,15 @@
+import io
+import logging
+import os
+import tempfile
+import time
+
+import aiohttp
+
 from . import base
+from ..bot import api
 
-
-# TODO: Interface for sending files
+log = logging.getLogger('aiogram')
 
 
 class InputFile(base.TelegramObject):
@@ -9,12 +17,134 @@ class InputFile(base.TelegramObject):
     This object represents the contents of a file to be uploaded.
     Must be posted using multipart/form-data in the usual way that files are uploaded via the browser.
 
+    Also that is not typical TelegramObject!
+
     https://core.telegram.org/bots/api#inputfile
     """
 
-    def __init__(self, file_id=None, path=None, url=None, filename=None):
-        self.file_id = file_id
-        self.path = path
-        self.url = url
-        self.filename = filename
-        super(InputFile, self).__init__()
+    def __init__(self, path_or_bytesio, filename=None, conf=None):
+        """
+
+        :param path_or_bytesio:
+        :param filename:
+        :param conf:
+        """
+        super(InputFile, self).__init__(conf=conf)
+        if isinstance(path_or_bytesio, str):
+            # As path
+            self._file = open(path_or_bytesio, 'rb')
+            self._path = path_or_bytesio
+            if filename is None:
+                filename = os.path.split(path_or_bytesio)[-1]
+        else:
+            # As io.BytesIO
+            assert isinstance(path_or_bytesio, io.IOBase)
+            self._path = None
+            self._file = path_or_bytesio
+
+        self._filename = filename
+
+    def __del__(self):
+        """
+        Close file descriptor
+        """
+        if not hasattr(self, '_file'):
+            return
+        self._file.close()
+        del self._file
+
+        if self.conf.get('downloaded') and self.conf.get('temp'):
+            log.debug(f"Unlink file '{self._path}'")
+            os.unlink(self._path)
+
+    def get_filename(self) -> str:
+        """
+        Get file name
+
+        :return: name
+        """
+        if self._filename is None:
+            self._filename = api._guess_filename(self._file)
+        return self._filename
+
+    def get_file(self):
+        """
+        Get file object
+
+        :return:
+        """
+        return self._file
+
+    @classmethod
+    async def from_url(cls, url, filename=None, temp_file=False, chunk_size=65536):
+        """
+        Download file from URL
+
+        Manually is not required action. You can send urls instead!
+
+        :param url: target URL
+        :param filename: optional. set custom file name
+        :param temp_file: use temporary file
+        :param chunk_size:
+
+        :return: InputFile
+        """
+        conf = {
+            'downloaded': True,
+            'url': url
+        }
+
+        # Let's do magic with the filename
+        if filename:
+            filename_prefix, _, ext = filename.rpartition('.')
+            file_suffix = '.' + ext if ext else ''
+        else:
+            filename_prefix, _, ext = url.rpartition('/')[-1].rpartition('.')
+            file_suffix = '.' + ext if ext else ''
+            filename = filename_prefix + file_suffix
+
+        async with aiohttp.ClientSession() as session:
+            start = time.time()
+            async with session.get(url) as response:
+                if temp_file:
+                    # Create temp file
+                    fd, path = tempfile.mkstemp(suffix=file_suffix, prefix=filename_prefix + '_')
+                    file = conf['temp'] = path
+
+                    # Save file in temp directory
+                    with open(fd, 'wb') as f:
+                        await cls._process_stream(response, f, chunk_size=chunk_size)
+                else:
+                    # Save file in memory
+                    file = await cls._process_stream(response, io.BytesIO(), chunk_size=chunk_size)
+
+                log.debug(f"File successful downloaded at {round(time.time() - start, 2)} seconds from '{url}'")
+                return cls(file, filename, conf=conf)
+
+    @classmethod
+    async def _process_stream(cls, response, writer, chunk_size=65536):
+        """
+        Transfer data
+
+        :param response:
+        :param writer:
+        :param chunk_size:
+        :return:
+        """
+        while True:
+            chunk = await response.content.read(chunk_size)
+            if not chunk:
+                break
+            writer.write(chunk)
+
+        if writer.seekable():
+            writer.seek(0)
+
+        return writer
+
+    def to_python(self):
+        raise TypeError('Object of this type is not exportable!')
+
+    @classmethod
+    def to_object(cls, data):
+        raise TypeError('Object of this type is not importable!')

aiogram/types/input_media.py

@@ -4,6 +4,7 @@ import typing
 
 from . import base
 from . import fields
+from .input_file import InputFile
 
 ATTACHMENT_PREFIX = 'attach://'
 
@@ -28,20 +29,6 @@ class InputMedia(base.TelegramObject):
 
     @file.setter
     def file(self, file: io.IOBase):
-        if self.conf.get('cache'):
-            # File must be not closed before sending media.
-            # Read file into BytesIO
-            if isinstance(file, io.BufferedIOBase):
-                # Go to start of file
-                if file.seekable():
-                    file.seek(0)
-                # Read
-                temp_file = io.BytesIO(file.read())
-                # Reset cursor
-                file.seek(0)
-                # Replace variable
-                file = temp_file
-
         setattr(self, '_file', file)
         self.media = ATTACHMENT_PREFIX + secrets.token_urlsafe(16)
 
@@ -59,10 +46,10 @@ class InputMediaPhoto(InputMedia):
     https://core.telegram.org/bots/api#inputmediaphoto
     """
 
-    def __init__(self, media: base.InputFile, caption: base.String = None, cache=True):
-        super(InputMediaPhoto, self).__init__(type='photo', media=media, caption=caption, conf={'cache': cache})
+    def __init__(self, media: base.InputFile, caption: base.String = None):
+        super(InputMediaPhoto, self).__init__(type='photo', media=media, caption=caption)
 
-        if isinstance(media, io.IOBase):
+        if isinstance(media, (io.IOBase, InputFile)):
             self.file = media
 
 
@@ -77,13 +64,11 @@ class InputMediaVideo(InputMedia):
     duration: base.Integer = fields.Field()
 
     def __init__(self, media: base.InputFile, caption: base.String = None,
-                 width: base.Integer = None, height: base.Integer = None, duration: base.Integer = None,
-                 cache=True):
+                 width: base.Integer = None, height: base.Integer = None, duration: base.Integer = None):
         super(InputMediaVideo, self).__init__(type='video', media=media, caption=caption,
-                                              width=width, height=height, duration=duration,
-                                              conf={'cache': cache})
+                                              width=width, height=height, duration=duration)
 
-        if isinstance(media, io.IOBase):
+        if isinstance(media, (io.IOBase, InputFile)):
             self.file = media