376 lines
11 KiB
Python
376 lines
11 KiB
Python
import os
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import serial
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import time
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import hashlib
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import math
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def timing(func):
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"""
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Speedometer decorator
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"""
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def wrapper(*args, **kwargs):
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time1 = time.monotonic()
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ret = func(*args, **kwargs)
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time2 = time.monotonic()
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print(
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"{:s} function took {:.3f} ms".format(
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func.__name__, (time2 - time1) * 1000.0
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)
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)
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return ret
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return wrapper
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class BufferedRead:
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def __init__(self, stream):
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self.buffer = bytearray()
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self.stream = stream
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def until(self, eol="\n", cut_eol=True):
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eol = eol.encode("ascii")
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while True:
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# search in buffer
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i = self.buffer.find(eol)
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if i >= 0:
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if cut_eol:
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read = self.buffer[:i]
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else:
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read = self.buffer[: i + len(eol)]
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self.buffer = self.buffer[i + len(eol) :]
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return read
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# read and append to buffer
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i = max(1, self.stream.in_waiting)
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data = self.stream.read(i)
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self.buffer.extend(data)
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class FlipperStorage:
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CLI_PROMPT = ">: "
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CLI_EOL = "\r\n"
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def __init__(self, portname: str):
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self.port = serial.Serial()
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self.port.port = portname
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self.port.timeout = 2
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self.port.baudrate = 115200
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self.read = BufferedRead(self.port)
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self.last_error = ""
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def start(self):
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self.port.open()
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self.port.reset_input_buffer()
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# Send a command with a known syntax to make sure the buffer is flushed
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self.send("device_info\r")
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self.read.until("hardware_model")
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# And read buffer until we get prompt
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self.read.until(self.CLI_PROMPT)
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def stop(self):
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self.port.close()
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def send(self, line):
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self.port.write(line.encode("ascii"))
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def send_and_wait_eol(self, line):
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self.send(line)
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return self.read.until(self.CLI_EOL)
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def send_and_wait_prompt(self, line):
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self.send(line)
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return self.read.until(self.CLI_PROMPT)
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def has_error(self, data):
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"""Is data has error"""
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if data.find(b"Storage error") != -1:
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return True
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else:
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return False
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def get_error(self, data):
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"""Extract error text from data and print it"""
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error, error_text = data.decode("ascii").split(": ")
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return error_text.strip()
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def list_tree(self, path="/", level=0):
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"""List files and dirs on Flipper"""
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path = path.replace("//", "/")
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self.send_and_wait_eol('storage list "' + path + '"\r')
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data = self.read.until(self.CLI_PROMPT)
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lines = data.split(b"\r\n")
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for line in lines:
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try:
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# TODO: better decoding, considering non-ascii characters
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line = line.decode("ascii")
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except:
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continue
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line = line.strip()
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if len(line) == 0:
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continue
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if self.has_error(line.encode("ascii")):
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print(self.get_error(line.encode("ascii")))
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continue
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if line == "Empty":
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continue
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type, info = line.split(" ", 1)
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if type == "[D]":
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# Print directory name
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print((path + "/" + info).replace("//", "/"))
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# And recursively go inside
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self.list_tree(path + "/" + info, level + 1)
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elif type == "[F]":
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name, size = info.rsplit(" ", 1)
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# Print file name and size
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print((path + "/" + name).replace("//", "/") + ", size " + size)
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else:
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# Something wrong, pass
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pass
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def walk(self, path="/"):
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dirs = []
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nondirs = []
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walk_dirs = []
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path = path.replace("//", "/")
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self.send_and_wait_eol('storage list "' + path + '"\r')
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data = self.read.until(self.CLI_PROMPT)
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lines = data.split(b"\r\n")
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for line in lines:
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try:
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# TODO: better decoding, considering non-ascii characters
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line = line.decode("ascii")
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except:
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continue
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line = line.strip()
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if len(line) == 0:
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continue
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if self.has_error(line.encode("ascii")):
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continue
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if line == "Empty":
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continue
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type, info = line.split(" ", 1)
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if type == "[D]":
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# Print directory name
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dirs.append(info)
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walk_dirs.append((path + "/" + info).replace("//", "/"))
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elif type == "[F]":
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name, size = info.rsplit(" ", 1)
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# Print file name and size
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nondirs.append(name)
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else:
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# Something wrong, pass
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pass
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# topdown walk, yield before recursy
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yield path, dirs, nondirs
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for new_path in walk_dirs:
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yield from self.walk(new_path)
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def send_file(self, filename_from, filename_to):
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"""Send file from local device to Flipper"""
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self.remove(filename_to)
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file = open(filename_from, "rb")
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filesize = os.fstat(file.fileno()).st_size
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buffer_size = 512
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while True:
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filedata = file.read(buffer_size)
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size = len(filedata)
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if size == 0:
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break
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self.send_and_wait_eol(
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'storage write_chunk "' + filename_to + '" ' + str(size) + "\r"
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)
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answer = self.read.until(self.CLI_EOL)
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if self.has_error(answer):
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self.last_error = self.get_error(answer)
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self.read.until(self.CLI_PROMPT)
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file.close()
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return False
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self.port.write(filedata)
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self.read.until(self.CLI_PROMPT)
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percent = str(math.ceil(file.tell() / filesize * 100))
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total_chunks = str(math.ceil(filesize / buffer_size))
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current_chunk = str(math.ceil(file.tell() / buffer_size))
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print(
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percent + "%, chunk " + current_chunk + " of " + total_chunks, end="\r"
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)
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file.close()
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print()
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return True
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def read_file(self, filename):
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"""Receive file from Flipper, and get filedata (bytes)"""
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buffer_size = 512
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self.send_and_wait_eol(
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'storage read_chunks "' + filename + '" ' + str(buffer_size) + "\r"
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)
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answer = self.read.until(self.CLI_EOL)
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filedata = bytearray()
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if self.has_error(answer):
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self.last_error = self.get_error(answer)
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self.read.until(self.CLI_PROMPT)
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return filedata
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size = int(answer.split(b": ")[1])
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readed_size = 0
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while readed_size < size:
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self.read.until("Ready?" + self.CLI_EOL)
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self.send("y")
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read_size = min(size - readed_size, buffer_size)
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filedata.extend(self.port.read(read_size))
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readed_size = readed_size + read_size
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percent = str(math.ceil(readed_size / size * 100))
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total_chunks = str(math.ceil(size / buffer_size))
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current_chunk = str(math.ceil(readed_size / buffer_size))
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print(
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percent + "%, chunk " + current_chunk + " of " + total_chunks, end="\r"
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)
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print()
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self.read.until(self.CLI_PROMPT)
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return filedata
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def receive_file(self, filename_from, filename_to):
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"""Receive file from Flipper to local storage"""
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with open(filename_to, "wb") as file:
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data = self.read_file(filename_from)
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if not data:
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return False
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else:
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file.write(data)
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return True
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def exist(self, path):
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"""Is file or dir exist on Flipper"""
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self.send_and_wait_eol('storage stat "' + path + '"\r')
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answer = self.read.until(self.CLI_EOL)
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self.read.until(self.CLI_PROMPT)
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if self.has_error(answer):
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self.last_error = self.get_error(answer)
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return False
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else:
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return True
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def exist_dir(self, path):
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"""Is dir exist on Flipper"""
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self.send_and_wait_eol('storage stat "' + path + '"\r')
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answer = self.read.until(self.CLI_EOL)
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self.read.until(self.CLI_PROMPT)
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if self.has_error(answer):
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self.last_error = self.get_error(answer)
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return False
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else:
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if answer.find(b"Directory") != -1:
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return True
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elif answer.find(b"Storage") != -1:
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return True
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else:
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return False
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def exist_file(self, path):
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"""Is file exist on Flipper"""
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self.send_and_wait_eol('storage stat "' + path + '"\r')
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answer = self.read.until(self.CLI_EOL)
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self.read.until(self.CLI_PROMPT)
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if self.has_error(answer):
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self.last_error = self.get_error(answer)
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return False
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else:
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if answer.find(b"File, size:") != -1:
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return True
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else:
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return False
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def size(self, path):
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"""file size on Flipper"""
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self.send_and_wait_eol('storage stat "' + path + '"\r')
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answer = self.read.until(self.CLI_EOL)
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self.read.until(self.CLI_PROMPT)
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if self.has_error(answer):
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self.last_error = self.get_error(answer)
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return False
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else:
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if answer.find(b"File, size:") != -1:
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size = int(
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"".join(
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ch
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for ch in answer.split(b": ")[1].decode("ascii")
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if ch.isdigit()
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)
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)
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return size
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else:
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self.last_error = "access denied"
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return -1
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def mkdir(self, path):
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"""Create a directory on Flipper"""
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self.send_and_wait_eol('storage mkdir "' + path + '"\r')
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answer = self.read.until(self.CLI_EOL)
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self.read.until(self.CLI_PROMPT)
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if self.has_error(answer):
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self.last_error = self.get_error(answer)
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return False
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else:
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return True
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def remove(self, path):
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"""Remove file or directory on Flipper"""
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self.send_and_wait_eol('storage remove "' + path + '"\r')
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answer = self.read.until(self.CLI_EOL)
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self.read.until(self.CLI_PROMPT)
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if self.has_error(answer):
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self.last_error = self.get_error(answer)
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return False
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else:
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return True
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def hash_local(self, filename):
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"""Hash of local file"""
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hash_md5 = hashlib.md5()
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with open(filename, "rb") as f:
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for chunk in iter(lambda: f.read(4096), b""):
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hash_md5.update(chunk)
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return hash_md5.hexdigest()
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def hash_flipper(self, filename):
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"""Get hash of file on Flipper"""
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self.send_and_wait_eol('storage md5 "' + filename + '"\r')
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hash = self.read.until(self.CLI_EOL)
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self.read.until(self.CLI_PROMPT)
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if self.has_error(hash):
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self.last_error = self.get_error(hash)
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return ""
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else:
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return hash.decode("ascii")
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