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(Tcl) GMail IMAP Authentication using OAuth2 Access TokenDemonstrates how to do IMAP OAuth2 authentication for GMail (or any other IMAP mail server supporting OAuth2 authentication). This example assumes an OAuth2 access token was previously obtained.
load ./chilkat.dll # This example requires the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. # See Get GMail IMAP OAuth2 Access Token for Desktop App # for sample code showing how to obtain a GMail IMAP read/write access token. # In this example, our access token was previously saved to the following file which contains JSON like this: # { # "access_token": "ya39.Ci-XA_C5bGgRDC3UaD-h0_NeL-DVIQnI2gHtBBBHkZzrwlARkwX6R3O0PCDEzRlfaQ", # "token_type": "Bearer", # "expires_in": 3600, # "refresh_token": "1/r_2c_7jddspcdfesrrfKqfXtqo08D6Q-gUU0DsdfVMsx0c" # } # set json [new_CkJsonObject] set success [CkJsonObject_LoadFile $json "qa_data/tokens/_gmailFullAccess.json"] if {$success != 1} then { puts "Failed to load GMail access token file." delete_CkJsonObject $json exit } set accessToken [CkJsonObject_stringOf $json "access_token"] # Do OAuth2 authentication by using the access token as the password in the Login method below... set imap [new_CkImap] CkImap_put_Ssl $imap 1 CkImap_put_Port $imap 993 # Connect to the GMail IMAP server. set success [CkImap_Connect $imap "imap.gmail.com"] if {$success != 1} then { puts [CkImap_lastErrorText $imap] delete_CkJsonObject $json delete_CkImap $imap exit } # Indicate that XOAUTH2 authentication is to be used: CkImap_put_AuthMethod $imap "XOAUTH2" # Login # Use the email address of the GMail account that granted authorization. set success [CkImap_Login $imap "user@gmail.com" $accessToken] if {$success != 1} then { puts [CkImap_lastErrorText $imap] } else { puts "Successfully authenticated with GMail IMAP using XOAUTH2!" } delete_CkJsonObject $json delete_CkImap $imap |
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