I have been using the ews-orgmode / ews-fetch-calendar.py Python script for a couple of months to download my Office365/Outlook/Exchange work calendar without problems. However, last week I rearranged the Python environments on my Linux system (installing fewer packages through the system package manager and more through pip). This stopped my calendar download from working, because I had also uninstalled pycurl (along with some other packages that I had to reinstall using pip in order to make some other scripts run again).
However, also after reinstalling pycurl, I cannot get the script to work anymore. The script and config/settings file have not changed, so either there's something wrong with my Python environment, or between 29-Oct-2019 and 6-Nov-2019 something happened in the server API. I have been trying this normally on my system and in a dedicated virtual environment (installing only the necessary packages), but to no avail, and I'm at a loss as to what to do next, hence my post here.
The script is written in Python2, and I have Python2.7 installed on my Gentoo Linux system. The issue seems to be an error reported by the Outlook/EWS server which results in an empty response which finally breaks down the code. I strongly suspect that the problem lies in the pycurl/server interaction, but I am not suffucienctly knowedgable to find out what the exact problem is. Any hints (or solutions) would be welcome :-)
Settings: ewsHost outlook.office365.com/ ewsUrl EWS/Exchange.asmx ewsUser firstname.lastname@example.org ewsPassword xxxxxxxxxxxx ewsAuthType basic ewsCAInfo timezoneLocation xxx/xxx daysHistory 30 daysFuture 90 maxEntries 300 Debug output pycurl: * Trying 22.214.171.124:443... * TCP_NODELAY set * Connected to outlook.office365.com (126.96.36.199) port 443 (#0) * ALPN, offering http/1.1 * successfully set certificate verify locations: * CAfile: /etc/ssl/certs/ca-certificates.crt CApath: /etc/ssl/certs * SSL connection using TLSv1.2 / ECDHE-RSA-AES256-GCM-SHA384 * ALPN, server did not agree to a protocol * Server certificate: * subject: C=US; ST=Washington; L=Redmond; O=Microsoft Corporation; CN=outlook.com * start date: Nov 17 00:00:00 2018 GMT * expire date: Nov 17 12:00:00 2020 GMT * subjectAltName: host "outlook.office365.com" matched cert's "*.office365.com" * issuer: C=US; O=DigiCert Inc; CN=DigiCert Cloud Services CA-1 * SSL certificate verify ok. * Server auth using Basic with user 'email@example.com' > POST /EWS/Exchange.asmx HTTP/1.1 Host: outlook.office365.com Authorization: Basic ZnFsbWhAaGFuLm5sOmhxeWh3ZGtmdndmdmp2cGM= User-Agent: PycURL/188.8.131.52 libcurl/7.66.0 OpenSSL/1.1.1d zlib/1.2.11 libssh2/1.9.0 Accept: */* Transfer-Encoding: chunked Content-Type: text/xml; charset=UTF-8 Content-Length: 912 Expect: 100-continue * Mark bundle as not supporting multiuse < HTTP/1.1 500 Internal Server Error < Server: Microsoft-IIS/10.0 < request-id: ec37d426-3b42-4c40-9136-9f085e39e833 < X-CalculatedFETarget: VI1PR09CU002.internal.outlook.com < X-ProxyErrorLabel: ProxyHandler::ExecuteRequestHandler/ProxyHandler::SubmitBackEndRequest < X-ProxyErrorHResult: 0x80070057 < X-ProxyErrorMessage: The parameter is incorrect. < X-Proxy-RoutingCorrectness: 1 < X-Powered-By: ASP.NET < X-FEServer: AM4PR0501CA0059 < Date: Thu, 07 Nov 2019 10:37:51 GMT < Content-Length: 0 * HTTP error before end of send, stop sending < * Closing connection 0 Traceback (most recent call last): File "./ews-fetch-calendar.py", line 204, in <module> root = etree.fromstring(data) File "src/lxml/etree.pyx", line 3234, in lxml.etree.fromstring File "src/lxml/parser.pxi", line 1876, in lxml.etree._parseMemoryDocument File "src/lxml/parser.pxi", line 1764, in lxml.etree._parseDoc File "src/lxml/parser.pxi", line 1127, in lxml.etree._BaseParser._parseDoc File "src/lxml/parser.pxi", line 601, in lxml.etree._ParserContext._handleParseResultDoc File "src/lxml/parser.pxi", line 711, in lxml.etree._handleParseResult File "src/lxml/parser.pxi", line 640, in lxml.etree._raiseParseError File "<string>", line 1 lxml.etree.XMLSyntaxError: Document is empty, line 1, column 1
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