# Path: src/bepasty/constants.py
# COMPLETE = 'complete'
# 
# FILENAME = 'filename'
# 
# LOCKED = 'locked'
# 
# TYPE = 'type'
# 
# Path: src/bepasty/utils/date_funcs.py
# def delete_if_lifetime_over(item, name):
#     """
#     :return: True if file was deleted
#     """
#     if 0 < item.meta[TIMESTAMP_MAX_LIFE] < time.time():
#         try:
#             current_app.storage.remove(name)
#         except OSError:
#             pass
#         return True
#     return False
# 
# Path: src/bepasty/utils/http.py
# def redirect_next_referrer(endpoint, **values):
#     return redirect(_redirect_target_url(request.form, True, endpoint, **values))
# 
# Path: src/bepasty/utils/permissions.py
# ADMIN = 'admin'
# 
# CREATE = 'create'
# 
# def may(permission):
#     """
#     check whether the current user has the permission <permission>
#     """
#     return permission in flaskg.permissions
# 
# Path: src/bepasty/utils/upload.py
# class Upload:
#     _filename_re = re.compile(r'[^a-zA-Z0-9 *+:;.,_-]+')
#     _type_re = re.compile(r'[^a-zA-Z0-9/+.-]+')
# 
#     @classmethod
#     def filter_size(cls, i):
#         """
#         Filter size.
#         Check for advertised size.
#         """
#         try:
#             i = int(i)
#         except (ValueError, TypeError):
#             raise BadRequest(description='Size is invalid')
#         if i > current_app.config['MAX_ALLOWED_FILE_SIZE']:
#             raise RequestEntityTooLarge()
#         return i
# 
#     @classmethod
#     def filter_filename(cls, filename, storage_name, content_type, content_type_hint):
#         """
#         Filter filename.
#         Only allow some basic characters and shorten to 50 characters.
#         """
#         # Make up filename if we don't have one
#         if not filename:
#             if not content_type:
#                 content_type = content_type_hint
#             # note: stdlib mimetypes.guess_extension is total crap
#             if content_type.startswith("text/"):
#                 ext = ".txt"
#             else:
#                 ext = ".bin"
#             filename = storage_name + ext
#         return cls._filename_re.sub('', filename)[:MAX_FILENAME_LENGTH]
# 
#     @classmethod
#     def filter_type(cls, ct, ct_hint, filename=None):
#         """
#         Filter Content-Type
#         Only allow some basic characters and shorten to 50 characters.
# 
#         Return value:
#         tuple[0] - content-type string
#         tuple[1] - whether tuple[0] is hint or not
#                    True:  content-type is just a hint
#                    False: content-type is not a hint, was specified by user
#         """
#         if not ct and filename:
#             ct, encoding = mimetypes.guess_type(filename)
#         if not ct:
#             return ct_hint, True
#         return cls._type_re.sub('', ct)[:50], False
# 
#     @classmethod
#     def meta_new(cls, item, input_size, input_filename, input_type,
#                  input_type_hint, storage_name, maxlife_stamp=FOREVER):
#         item.meta[FILENAME] = cls.filter_filename(
#             input_filename, storage_name, input_type, input_type_hint
#         )
#         item.meta[SIZE] = cls.filter_size(input_size)
#         ct, hint = cls.filter_type(input_type, input_type_hint, input_filename)
#         item.meta[TYPE] = ct
#         item.meta[TYPE_HINT] = hint
#         item.meta[TIMESTAMP_UPLOAD] = int(time.time())
#         item.meta[TIMESTAMP_DOWNLOAD] = 0
#         item.meta[LOCKED] = current_app.config['UPLOAD_LOCKED']
#         item.meta[COMPLETE] = False
#         item.meta[HASH] = ''
#         item.meta[TIMESTAMP_MAX_LIFE] = maxlife_stamp
# 
#     @classmethod
#     def meta_complete(cls, item, file_hash):
#         # update TYPE by python-magic if not decided yet
#         if item.meta.pop(TYPE_HINT, False):
#             if magic and current_app.config.get('USE_PYTHON_MAGIC', False):
#                 if item.meta[TYPE] == 'application/octet-stream':
#                     item.meta[TYPE] = magic.from_buffer(item.data.read(magic_bufsz, 0))
#         item.meta[COMPLETE] = True
#         item.meta[HASH] = file_hash
# 
#     @staticmethod
#     def data(item, f, size_input, offset=0):
#         """
#         Copy data from temp file into storage.
#         """
#         read_length = 16 * 1024
#         size_written = 0
#         hasher = hash_new()
# 
#         while True:
#             read_length = min(read_length, size_input)
#             if size_input == 0:
#                 break
# 
#             buf = f.read(read_length)
#             if not buf:
#                 # Should not happen, we already checked the size
#                 raise RuntimeError
# 
#             item.data.write(buf, offset + size_written)
#             hasher.update(buf)
# 
#             len_buf = len(buf)
#             size_written += len_buf
#             size_input -= len_buf
# 
#         return size_written, hasher.hexdigest()


import errno
from flask import current_app, request, render_template
from flask.views import MethodView
from werkzeug.exceptions import Forbidden, NotFound
from ..constants import COMPLETE, FILENAME, LOCKED, TYPE
from ..utils.date_funcs import delete_if_lifetime_over
from ..utils.http import redirect_next_referrer
from ..utils.permissions import ADMIN, CREATE, may
from ..utils.upload import Upload




class ModifyView(MethodView):
    def error(self, item, error):
        return render_template('error.html', heading=item.meta[FILENAME], body=error), 409

    def response(self, name):
        return redirect_next_referrer('bepasty.display', name=name)

    def get_params(self):
        return {
            FILENAME: request.form.get('filename'),

# Path: src/bepasty/constants.py
# COMPLETE = 'complete'
# 
# FILENAME = 'filename'
# 
# LOCKED = 'locked'
# 
# TYPE = 'type'
# 
# Path: src/bepasty/utils/date_funcs.py
# def delete_if_lifetime_over(item, name):
#     """
#     :return: True if file was deleted
#     """
#     if 0 < item.meta[TIMESTAMP_MAX_LIFE] < time.time():
#         try:
#             current_app.storage.remove(name)
#         except OSError:
#             pass
#         return True
#     return False
# 
# Path: src/bepasty/utils/http.py
# def redirect_next_referrer(endpoint, **values):
#     return redirect(_redirect_target_url(request.form, True, endpoint, **values))
# 
# Path: src/bepasty/utils/permissions.py
# ADMIN = 'admin'
# 
# CREATE = 'create'
# 
# def may(permission):
#     """
#     check whether the current user has the permission <permission>
#     """
#     return permission in flaskg.permissions
# 
# Path: src/bepasty/utils/upload.py
# class Upload:
#     _filename_re = re.compile(r'[^a-zA-Z0-9 *+:;.,_-]+')
#     _type_re = re.compile(r'[^a-zA-Z0-9/+.-]+')
# 
#     @classmethod
#     def filter_size(cls, i):
#         """
#         Filter size.
#         Check for advertised size.
#         """
#         try:
#             i = int(i)
#         except (ValueError, TypeError):
#             raise BadRequest(description='Size is invalid')
#         if i > current_app.config['MAX_ALLOWED_FILE_SIZE']:
#             raise RequestEntityTooLarge()
#         return i
# 
#     @classmethod
#     def filter_filename(cls, filename, storage_name, content_type, content_type_hint):
#         """
#         Filter filename.
#         Only allow some basic characters and shorten to 50 characters.
#         """
#         # Make up filename if we don't have one
#         if not filename:
#             if not content_type:
#                 content_type = content_type_hint
#             # note: stdlib mimetypes.guess_extension is total crap
#             if content_type.startswith("text/"):
#                 ext = ".txt"
#             else:
#                 ext = ".bin"
#             filename = storage_name + ext
#         return cls._filename_re.sub('', filename)[:MAX_FILENAME_LENGTH]
# 
#     @classmethod
#     def filter_type(cls, ct, ct_hint, filename=None):
#         """
#         Filter Content-Type
#         Only allow some basic characters and shorten to 50 characters.
# 
#         Return value:
#         tuple[0] - content-type string
#         tuple[1] - whether tuple[0] is hint or not
#                    True:  content-type is just a hint
#                    False: content-type is not a hint, was specified by user
#         """
#         if not ct and filename:
#             ct, encoding = mimetypes.guess_type(filename)
#         if not ct:
#             return ct_hint, True
#         return cls._type_re.sub('', ct)[:50], False
# 
#     @classmethod
#     def meta_new(cls, item, input_size, input_filename, input_type,
#                  input_type_hint, storage_name, maxlife_stamp=FOREVER):
#         item.meta[FILENAME] = cls.filter_filename(
#             input_filename, storage_name, input_type, input_type_hint
#         )
#         item.meta[SIZE] = cls.filter_size(input_size)
#         ct, hint = cls.filter_type(input_type, input_type_hint, input_filename)
#         item.meta[TYPE] = ct
#         item.meta[TYPE_HINT] = hint
#         item.meta[TIMESTAMP_UPLOAD] = int(time.time())
#         item.meta[TIMESTAMP_DOWNLOAD] = 0
#         item.meta[LOCKED] = current_app.config['UPLOAD_LOCKED']
#         item.meta[COMPLETE] = False
#         item.meta[HASH] = ''
#         item.meta[TIMESTAMP_MAX_LIFE] = maxlife_stamp
# 
#     @classmethod
#     def meta_complete(cls, item, file_hash):
#         # update TYPE by python-magic if not decided yet
#         if item.meta.pop(TYPE_HINT, False):
#             if magic and current_app.config.get('USE_PYTHON_MAGIC', False):
#                 if item.meta[TYPE] == 'application/octet-stream':
#                     item.meta[TYPE] = magic.from_buffer(item.data.read(magic_bufsz, 0))
#         item.meta[COMPLETE] = True
#         item.meta[HASH] = file_hash
# 
#     @staticmethod
#     def data(item, f, size_input, offset=0):
#         """
#         Copy data from temp file into storage.
#         """
#         read_length = 16 * 1024
#         size_written = 0
#         hasher = hash_new()
# 
#         while True:
#             read_length = min(read_length, size_input)
#             if size_input == 0:
#                 break
# 
#             buf = f.read(read_length)
#             if not buf:
#                 # Should not happen, we already checked the size
#                 raise RuntimeError
# 
#             item.data.write(buf, offset + size_written)
#             hasher.update(buf)
# 
#             len_buf = len(buf)
#             size_written += len_buf
#             size_input -= len_buf
# 
#         return size_written, hasher.hexdigest()


# Path: src/bepasty/views/modify.py
import errno
from flask import current_app, request, render_template
from flask.views import MethodView
from werkzeug.exceptions import Forbidden, NotFound
from ..constants import COMPLETE, FILENAME, LOCKED, TYPE
from ..utils.date_funcs import delete_if_lifetime_over
from ..utils.http import redirect_next_referrer
from ..utils.permissions import ADMIN, CREATE, may
from ..utils.upload import Upload





class ModifyView(MethodView):
    def error(self, item, error):
        return render_template('error.html', heading=item.meta[FILENAME], body=error), 409

    def response(self, name):
        return redirect_next_referrer('bepasty.display', name=name)

    def get_params(self):
        return {
            FILENAME: request.form.get('filename'),

            TYPE: request.form.get('contenttype'),