Navkirat Singh wrote:
O
<snip>
I am using Python3 and I receive a byte stream with a jpeg attached sent by the 
web browser over a socket, which looks like this:

b': image/jpeg\r\nAccept: text/*\r\nReferer: 
http://127.0.0.1:8001/\r\nAccept-Language: en-us\r\nAccept-Encoding: gzip, 
deflate\r\nContent-Length: 91783\r\nConnection: 
keep-alive\r\n\r\n\xff\xd8\xff\xe0\x00\x10JFIF\x00\x01\x01\x00\x00\x01\x00\x01\x00\x00\xff\xdb\x00\x84\x00\x03\x02\x02\x03\x02\x02\x03\x03\x03\x03\x04\x03\x03\x04\x05\x08\x05\x05\x04\x04\x05\n\x07\x07\x06\x08\x0c\n\x0c\x0c\x0b\n\x0b\x0b\r\x0e\x12\x10\r\x0e\x11\x0e\x0b\x0b\x10\x16\x10\x11\x13\x14\x15\x15\x15\x0c\x0f

From the above, I need to:

a) Split the header content from the image content, which comes after the 
keep-alive\r\n\r\n part

b) Then write the image content to file for further use as a jpeg.

Nav
An arbitrary string of bytes is not necessarily valid utf-8, so I'm not sure why you haven't been getting errors during that "decode." In any case, such a conversion is not reversible.

I would parse that as bytes, perhaps by searching for 'keep-alive'. Then split the byte stream into the two parts, and only convert the first part to Unicode (Python 3 string). For safety, you could check to make sure the search pattern only appears once, and potentially decode it multiple times. It'll only make sense once.

DaveA

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