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Revision 7b70d7a8


Added by Apollon Oikonomopoulos over 11 years ago

http.client: Disable SSL session ID cache

This patch disables the SSL session ID cache for all cURL operations.
This is needed because http.HttpBase's PyOpenSSL implementation does not
currently set a context using SSL_set_session_id_context(3SSL), cURL
tries to re-use the session ID and, according to

If the session id context is not set on an SSL/TLS server and client
certificates are used, stored sessions will not be reused but a fatal
error will be flagged and the handshake will fail.

Ideally, session caching should be either controlled, or disabled in
HttpBase, however PyOpenSSL does not seem to implement
SSL_CTX_set_session_cache_mode nor SSL_CTX_set_session_id_context which
are used for these purposes (it seems that only M2Crypto's SSL module
supports these).

Signed-off-by: Apollon Oikonomopoulos <>
Signed-off-by: Michael Hanselmann <>
Reviewed-by: Michael Hanselmann <>


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