def write_file() :
'''
Write content to a file (overwrites original; creates new file)
Request
pathname: Linux-style path and name of file
content: base64 encoded content
Response
length: Length written to file
pathname: same as in request
'''
pathname = get_pathname()
b64content = request.args.get('content')
if b64content is None :
return json_error('Please supply content using HTTP GET')
try :
content = base64.decodebytes(b64content.encode())
except binascii.Error :
return json_error('Content cannot be base64 decoded')
directory = os.path.dirname(pathname)
if not os.path.exists(directory) :
return json_error('Directory %s does not exist' % repr(directory))
try :
f = open(pathname, 'wb')
nbytes = f.write(content)
f.close()
except PermissionError :
return json_error('Permission Denied')
except Exception :
return json_error('Exception: %s' % repr(traceback.format_exc()))
return json_success('Written %d bytes to %s' % (nbytes, repr(pathname)),
length=nbytes, pathname=pathname)
def copy_tree() :
'''
Copy a tree using shutil.copytree
Call convention: (src, dst, ignore=shutil.ignore_patterns(*ignore))
Request
src: A Linux-style path of file or directory
dst: A Linux-style path of file or directory
ignore: list of json strings, passed to ignore_patterns(); optional
Response
(none)
'''
src = get_pathname('src')
dst = get_pathname('dst')
ignore = request.args.get('ignore', None)
try :
print(repr(ignore))
if ignore is not None :
ignore = shutil.ignore_patterns(*json.loads(ignore))
shutil.copytree(src, dst, ignore=ignore)
except PermissionError :
return json_error('Permission Denied')
except FileExistsError :
return json_error('File exists')
except FileNotFoundError :
return json_error('No such file or directory')
except Exception :
return json_error('Exception: %s' % repr(traceback.format_exc()))
return json_success()
def status() :
'''
Display file status (permission, user, etc), wrapper for os.stat
Request
pathname: Linux-style path of file or directory
Response
mode: file mode in integer
uid: user id in integer
gid: group id in integer
size: size in integer
atime: access time in float
mtime: modify time in float
ctime: change time in float
'''
pathname = get_pathname()
parent = request.args.get('parent', '0') == '1'
if not os.path.exists(pathname) :
return json_error('pathname does not exist')
try :
stat = os.stat(pathname)
except Exception as e :
return json_error(e.strerror)
return json_success(mode=stat.st_mode,
uid=stat.st_uid,
gid=stat.st_gid,
size=stat.st_size,
atime=stat.st_atime,
mtime=stat.st_mtime,
ctime=stat.st_ctime)
def list_directory() :
'''
List a directory
Request
pathname: Linux-style path of directory
Response
content: json list of direcotry content
'''
pathname = get_pathname()
if not os.path.exists(pathname) :
return json_error('pathname does not exist')
if not os.path.isdir(pathname) :
return json_error('pathname is not directory')
return json_success(content=os.listdir(pathname))
def add_book():
try:
params = request.get_json()
if not params:
params = request.form
if not params.get("title") or not params.get("author"):
return validation_errors(errors="title and author is required")
groups = classify_book(params["title"])
temp_params = {
"title": request.form["title"],
"author": request.form["author"],
"groups": groups
}
books_list = Books().create(temp_params)
suggested_books = Books().list_books_in_group(groups.split(", ")[0])
return render_template("index.html",
results={
"data": books_list,
"suggestion_flag": True,
"suggested_books": suggested_books
})
except Exception as e:
return json_error(message=str(e))
def copy_file() :
'''
Copy a file
Request
src: A Linux-style path of file or directory
dst: A Linux-style path of file or directory
Response
(none)
'''
src = get_pathname('src')
dst = get_pathname('dst')
try :
shutil.copy(src, dst)
except PermissionError :
return json_error('Permission Denied')
except Exception :
return json_error('Exception: %s' % repr(traceback.format_exc()))
return json_success()
def create(self, params):
try:
query = """ INSERT INTO {0} (title, author, groups)
VALUES ("{1}","{2}", "{3}")
""".format(self.__table_name__, params.get("title"),
params.get("author"), params.get("groups"))
self.conn.execute(query)
return self.list_items()
except Exception as e:
return json_error(message=str(e))
def remove_tree() :
'''
Copy a tree using shutil.copytree
Call convention: (src, dst, ignore=shutil.ignore_patterns(*ignore))
Request
pathname: A Linux-style path of file or directory
Response
(none)
'''
pathname = get_pathname('pathname')
try :
shutil.rmtree(pathname)
except PermissionError :
return json_error('Permission Denied')
except FileNotFoundError :
return json_error('No such file or directory')
except Exception :
return json_error('Exception: %s' % repr(traceback.format_exc()))
return json_success()
def delete_book(item_id):
try:
books_list = Books().delete(item_id)
return render_template("index.html",
results={
"data": books_list,
"suggestion_flag": False,
"suggested_books": []
})
except Exception as e:
return json_error(message=str(e))
def read_file() :
'''
Read the content of a file
Request
pathname: Linux-style path and name of file
Response
content: base64 encoded content of file
'''
pathname = get_pathname()
if not os.path.exists(pathname) :
return json_error('File %s does not exist' % repr(pathname))
try :
f = open(pathname, 'rb')
content = f.read()
f.close()
except PermissionError :
return json_error('Permission Denied')
except Exception :
return json_error('Exception: %s' % repr(traceback.format_exc()))
return json_success(content=base64.encodebytes(content).decode())
def delete(self, item_id):
try:
query = """ UPDATE {0}
SET is_deleted = {1}
WHERE id = {2}
""".format(self.__table_name__, 1, item_id)
if self.conn.execute(query):
return self.list_items()
else:
return False
except Exception as e:
return json_error(message=str(e))
def list_books():
try:
books_list = Books().list()
# books_list = get_paginated_list(books_list, start=1, limit=10)
return render_template("index.html",
results={
"data": books_list,
"suggestion_flag": False,
"suggested_books": []
})
except Exception as e:
return json_error(message=str(e))
def make_directory() :
'''
Make a directory
Request
pathname: Linux-style path of directory
parent: (optional) 0 or 1, whether mkdir parent directories
Response
(none)
'''
pathname = get_pathname()
parent = request.args.get('parent', '0') == '1'
if os.path.exists(pathname) :
return json_error('File exists')
try :
if parent :
os.makedirs(pathname)
else :
os.mkdir(pathname)
except Exception as e :
return json_error(e.strerror)
return json_success()
def change_mode() :
'''
Change mode of file or directory
Request
pathname: Linux-style path of file or directory
mode: file mode in integer
Response
(none)
'''
pathname = get_pathname()
parent = request.args.get('parent', '0') == '1'
if not os.path.exists(pathname) :
return json_error('pathname does not exist')
try :
mode = int(request.args.get('mode'))
except ValueError :
return json_error('Please supply mode in integer using HTTP GET')
try :
os.chmod(pathname, mode)
except Exception as e :
return json_error(e.strerror)
return json_success()
def get_group_wise_books():
try:
books_list = Books().list()
data = grouping_books(books_list)
records = []
groups = data.keys()
for grp in groups:
temp = {"groups": int(grp), "books_count": data[grp]}
records.append(temp)
if records:
records = sorted(records,
key=lambda i: i['books_count'],
reverse=True)
return render_template("groups.html", results=records)
except Exception as e:
return json_error(message=str(e))
def page_not_found(error):
return json_error('404 (Not Found)')
