CkPython

Fetch a Single Message's MIME into a StringBuilder

Demonstrates the Chilkat Imap.FetchSingleAsMimeSb method, which downloads one message's MIME into a StringBuilder. The first argument is the message id, the second (bUid) selects UID vs sequence number, and the third is the StringBuilder, which is cleared first. This example downloads a message by UID and prints the MIME length.

Background: Chilkat interprets the received MIME as UTF-8. Messages using Base64 or quoted-printable transfer encoding are safe because their encoded bytes are ASCII. Raw 8bit or binary content, or unencoded text in a charset such as ISO-8859-1 or Shift_JIS, can be misinterpreted — in those cases use FetchSingleBd to get the exact bytes.

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CkPython

import sys
import chilkat

success = False

#  Demonstrates the Imap.FetchSingleAsMimeSb method, which downloads one message's MIME into a
#  StringBuilder.  The 1st argument is the message id, the 2nd (bUid) selects UID vs sequence
#  number, and the 3rd is the StringBuilder (cleared first).

imap = chilkat.CkImap()

imap.put_Ssl(True)
imap.put_Port(993)

success = imap.Connect("imap.example.com")
if (success == False):
    print(imap.lastErrorText())
    sys.exit()

success = imap.Login("user@example.com","myPassword")
if (success == False):
    print(imap.lastErrorText())
    sys.exit()

success = imap.SelectMailbox("Inbox")
if (success == False):
    print(imap.lastErrorText())
    sys.exit()

#  Search for the message ids to download, returning UIDs.
wantUids = True
msgSet = chilkat.CkMessageSet()
success = imap.QueryMbx("ALL",wantUids,msgSet)
if (success == False):
    print(imap.lastErrorText())
    sys.exit()

if (msgSet.get_Count() > 0):
    uid = msgSet.GetId(0)

    #  Download the message's MIME into a StringBuilder.  The id is a UID.
    useUid = True
    sbMime = chilkat.CkStringBuilder()
    success = imap.FetchSingleAsMimeSb(uid,useUid,sbMime)
    if (success == False):
        print(imap.lastErrorText())
        sys.exit()

    print("MIME length: " + str(sbMime.get_Length()) + " chars")

success = imap.Disconnect()
if (success == False):
    print(imap.lastErrorText())
    sys.exit()