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Moved the blocking state machine to the disconnect functions so that the
logout / quit functions are only responsible for sending the actual
command needed to logout or quit.
Additionally removed the hard return on failure.
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Added comments and simplified convoluted dophase_done comparison.
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Added an exception, for the STORE command, to the untagged response
processor in imap_endofresp() as servers will back respones containing
the FETCH keyword instead.
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Removed unwanted braces and added variable initialisation.
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Optimised the result test in each of the block_statemach() functions.
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Removed unnecessary state changes on failure and setting of result codes
on success.
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Removed unnecessary state change on failure and setting of result code on
success.
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Reworked comments as they referenced custom commands, removed
unnecessary state change on failure and setting of result code on
success.
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Removed imap_state_custom_resp() as imap_state_list_resp() provides the
same functionality.
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As the UID has to be specified by the user for the FETCH command to work
correctly, added a check to imap_fetch(), although strictly speaking it
is protected by the call from imap_perform().
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imap.c:694:21: error: unused variable 'imapc' [-Werror=unused-variable]
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Updated the style of imap_select() before adding the LIST command.
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In preparation for the addition of the LIST command, moved the mailbox
check from imap_do() to imap_select() and imap_append().
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Fixed imap_done() so that neither the FINAL states are not entered when
a custom command has been performed.
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Changed imap_select_resp() to invoke imap_custom() instead of
imap_fetch() after the mailbox has been selected if a custom
command has been set.
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Modified imap_perform() to start with the custom command instead of
SELECT when a custom command is to be performed and no mailbox has
been given.
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Added imap_custom(), which initiates the custom command processing,
and an associated response handler imap_state_custom_resp(), which
handles any responses by sending them to the client as body data.
All untagged responses with the same name as the first word of the
custom request string are accepted, with the exception of SELECT and
EXAMINE which have responses that cannot be easily identified. An
extra check has been provided for them so that any untagged responses
are accepted for them.
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Added imap_parse_custom_request() for parsing the CURLOPT_CUSTOMREQUEST
parameter which URL decodes the value and separates the request from
any parameters - This makes it easier to filter untagged responses
by the request command.
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Added custom request parameters to the per-request structure.
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Minor tidy up of code layout and comments following recent changes.
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Introduced the result code variable to simplify the state changes and
remove the hard returns.
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For consistency changed the logic of the imap_state_append_resp()
function to test for an unsucessful continuation response rather than a
succesful one.
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For consistency changed two if(constant != imapcode) tests to be
if(imapcode != constant).
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Added logic in imap_perform() to perform an APPEND rather than SELECT
and FETCH if an upload has been specified.
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The APPEND operation needs to be performed in several steps:
1) We send "<tag> APPEND <mailbox> <flags> {<size>}\r\n"
2) Server responds with continuation respose "+ ...\r\n"
3) We start the transfer and send <size> bytes of data
4) Only now we end the request command line by sending "\r\n"
5) Server responds with "<tag> OK ...\r\n"
This commit performs steps 4 and 5, in the DONE phase, as more
processing is required after the transfer.
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Added imap_append() function to initiate upload and imap_append_resp()
to handle the continuation response and start the transfer.
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Add number of bytes retrieved from the PP cache to req.bytecount and set
req.maxdownload only when starting a proper download.
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Added safer parsing of the untagged FETCH response line and the size of
continuation data.
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Accidentally lost the result code in imap_state_capability() and
imap_state_login() with commit b06a78622609.
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Some state changes would be performed after a failure test that
performed a hard return, whilst others would be performed within a test
for success. Updated the code, for consistency, so all instances are
performed within a success test.
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Removed superfluous NULL assignment after Curl_safefree() and rewrote
some comments and logging messages.
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Following commit 13006f3de9ec corrected the debug message in state()
from AUTHENTICATE to AUTHENTICATE_FINAL.
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If the FETCH command does not result in an untagged response the the
UID is probably invalid. As such do not return CURLE_OK.
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Not processing the final FETCH responses was not optimal, not only
because the response code would be ignored but it would also leave data
unread on the socket which would prohibit connection reuse.
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A typical FETCH response can be broken down into four parts:
1) "* <uid> FETCH (<what> {<size>}\r\n", using continuation syntax
2) <size> bytes of the actual message
3) ")\r\n", finishing the untagged response
4) "<tag> OK ...", finishing the command
Part 1 is read in imap_fetch_resp(), part 2 is consumed in the PERFORM
phase by the transfer subsystem, parts 3 and 4 are currently ignored.
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Removed whitespace from imap_perform()
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error: declaration of 'imap' shadows a previous local
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