error when using umail

Question

error when using umail

dimbn opened this issue 3 months ago · 7 comments

hallo shawwn
when using MicroPython v1.22.2 (2024-02-22) umail works properly. when using the latest MicroPython version v1.23.0 (2024-06-02) following error occurs: "ImportError: no module named 'ussl'". how can I solve the problem?
kind regards

Answer 1 · 2024-06-10T07:53:45.000Z

Hi. Can you try changing this line to import ssl as ussl and see if it works ?
https://github.com/shawwwn/uMail/blob/26863875d42c612c0f0de15c49163736683fb8f5/umail.py#L28C9-L28C20

Answer 2 · 2024-06-11T13:02:42.000Z

hi shawwwn thank you for your reply. I implemented your proposal but it doesn't help. this is the error-note that occurs: Traceback (most recent call last): File "<stdin>", line 252, in <module> File "umail.py", line 35, in __init__ File "ssl.py", line 1, in wrap_socket File "ssl.py", line 1, in wrap_socket OSError: (-29184, 'MBEDTLS_ERR_SSL_INVALID_RECORD') any other suggestions? kind regards Andy

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-------- Originalnachricht -------- BETREFF: Re: [shawwwn/uMail] error when using umail (Issue #28) DATUM: 2024-06-10 09:54 VON: Shawwwn ***@***.***> AN: shawwwn/uMail ***@***.***> Hi. Can you try changing this line to import ssl and see if it works ? https://github.com/shawwwn/uMail/blob/26863875d42c612c0f0de15c49163736683fb8f5/umail.py#L28C9-L28C20

-- Reply to this email directly, view it on GitHub [1], or unsubscribe [2]. You are receiving this because you authored the thread.Message ID: ***@***.***> Links: ------ [1] #28 (comment) [2] https://github.com/notifications/unsubscribe-auth/BJBSSP5DG6DFSOUVVLX4YCTZGVLR5AVCNFSM6AAAAABJAVXOH6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDCNJXGU4TCNBYGA --=_78fe70e09bfaa9f56153942cf42c035b Content-Type: multipart/related; boundary="=_e475db721b0a46da752a5bd48cfd545a"

--=_e475db721b0a46da752a5bd48cfd545a Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=UTF-8 <html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; charset= =3DUTF-8" /></head><body style=3D'font-size: 11pt; font-family: Verdana,Gen= eva,sans-serif'> hi shawwwn thank you for your reply. I implemented your proposal but it doesn't help. this is the error-note = that occurs: Traceback (most recent call last): File "<stdin>", line 252, = in <module> File "umail.py", line 35, in __init__ File "ssl= =2Epy", line 1, in wrap_socket File "ssl.py", line 1, in wrap_socket<b= r />OSError: (-29184, 'MBEDTLS_ERR_SSL_INVALID_RECORD') any other suggestions? kind regards Andy <div id=3D"signature">--- werkraum neuko= m - spezielles aus holz Mühlewiesenstrasse 34a, 8500 Frauenfeld<b= r />079 612 75 00</s= pan> </div> -------- Originalnachricht -------- <table border=3D"0" cellspacing=3D"0" cellpadding=3D"0"> <tbody> <tr> <th align=3D"right" valign=3D"baseline" nowrap=3D"nowrap">Betreff:</th> <td>Re: [shawwwn/uMail] error when using umail (Issue #28)</td> </tr> <tr> <th align=3D"right" valign=3D"baseline" nowrap=3D"nowrap">Datum:</th> <td>2024-06-10 09:54</td> </tr> <tr> <th align=3D"right" valign=3D"baseline" nowrap=3D"nowrap">Von:</th> <td>Shawwwn ***@***.***></td> </tr> <tr> <th align=3D"right" valign=3D"baseline" nowrap=3D"nowrap">An:</th> <td>shawwwn/uMail ***@***.***></td> </tr> </tbody> </table> <div id=3D"replybody1"> Hi. Can you try changing this line to <code class=3D"v1notr= anslate">import ssl</code> and see if it works ? <a href=3D"https://gi= thub.com/shawwwn/uMail/blob/26863875d42c612c0f0de15c49163736683fb8f5/umail.= py#L28C9-L28C20" target=3D"_blank" rel=3D"noopener noreferrer">https://gith= ub.com/shawwwn/uMail/blob/26863875d42c612c0f0de15c49163736683fb8f5/umail.py= #L28C9-L28C20</a> <p style=3D"font-size: small; -webkit-text-size-adjust: none; color: #666;"=

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Answer 3 · 2024-06-13T05:14:26.000Z

It is hard to pinpoint what is wrong but it looks like MbedTLS was not properly configured with your micropython build.

You may need to recompile micropython with new config values according to this comment:
loboris/MicroPython_ESP32_psRAM_LoBo#117 (comment)

Answer 4 · 2024-06-13T07:15:21.000Z

this sounds too complicate for me as a newcomer. as a workaround solution I use the former version of MicroPython. so it works properly.
thank you for your support.

Answer 5 · 2024-07-29T17:25:59.000Z

I'm encountering the exact same issues as described by dimbn even when using the latest umail.py updated by TheScientist101 along with the recent preview builds of MicroPython for the Raspberry Pi Pico W. Even though this issue report is declared as closed, problem unfortunately still exists...

IDK if this is relevant, but noticed the following changes in the SSL/TLS module from MicroPython v1.22.0 to v1.23.0:

v1.22.0 [https://docs.micropython.org/en/v1.22.0/library/ssl.html] -

ssl.wrap_socket(sock, server_side=False, keyfile=None, certfile=None, cert_reqs=CERT_NONE, cadata=None, server_hostname=None, do_handshake=True)

v1.23.0 [https://docs.micropython.org/en/v1.23.0/library/ssl.html] -

ssl.wrap_socket(sock, server_side=False, key=None, cert=None, cert_reqs=CERT_NONE, cadata=None, server_hostname=None, do_handshake=True)

??

Answer 6 · 2024-08-12T17:39:01.000Z

I hit this error, too. It's not a problem with umail but appears to be a deeper flaw in the way that Micropython's urllib handles TLS. It might or might not have to do with the max fragment length issue mentioned above, but every time I tried to use ussl to wrap a socket connection to a TLS SMTP server (I tried several), it throws this error, while it consistently works on port 443 https servers.

The workaround, at least for those with the option, is to use SSL instead of STARTTLS. For Gmail, this is as easy as connecting via port 465 and setting 'ssl=true' when creating the initial smtp object. If you're an Office365 user, you can use a completely unauthenticed port 25 option they call "direct send," but it comes with a lot of limitations.

The firmware version for the Pico W doesn't matter, at least for all of the available options: it fails the same way on every version from 1.20 to 1.23.

Answer 7 · 2024-08-13T05:43:24.000Z

For those who experiences this issue and is capable to recompile micropython, can you try changing the constant MBEDTLS_SSL_OUT_CONTENT_LEN to 8192 or even 16384 and report back?

You can find the constant here:
https://github.com/micropython/micropython/blob/288a03625327b025f81bb6d4e7fb76d56343172c/extmod/mbedtls/mbedtls_config_common.h#L62

Reason for this change:
micropython/micropython#5543 (comment)