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(Unicode C++) IMAP Read PEC Email of Aruba and Extract the Invoice XML FilesIMAP Read PEC Email of Aruba and Extract the Invoice XML Files. Note: This example requires Chilkat v11.0.0 or greater.
#include <CkImapW.h> #include <CkMessageSetW.h> #include <CkEmailW.h> #include <CkStringBuilderW.h> #include <CkMimeW.h> #include <CkBinDataW.h> #include <CkCrypt2W.h> #include <CkXmlW.h> void ChilkatSample(void) { bool success = false; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkImapW imap; // Connect using TLS. imap.put_Ssl(true); imap.put_Port(993); success = imap.Connect(L"imap.example.com"); if (success == false) { wprintf(L"%s\n",imap.lastErrorText()); return; } // Authenticate success = imap.Login(L"email_account_login",L"email_account_password"); if (success == false) { wprintf(L"%s\n",imap.lastErrorText()); return; } // Select an IMAP mailbox success = imap.SelectMailbox(L"Inbox/postacert"); if (success == false) { wprintf(L"%s\n",imap.lastErrorText()); return; } // Search for messages having "POSTA CERTIFICATA: Invio File" in the subject. bool fetchUids = true; CkMessageSetW messageSet; success = imap.QueryMbx(L"SUBJECT \"POSTA CERTIFICATA: Invio File\"",fetchUids,messageSet); if (success == false) { wprintf(L"%s\n",imap.lastErrorText()); return; } if (messageSet.get_Count() < 1) { wprintf(L"No messages found.\n"); return; } // For our example, we'll process only the 1st email in the messageSet. // Download the MIME source of the email into a StringBuilder object. CkEmailW email; success = imap.FetchEmail(false,messageSet.GetId(0),messageSet.get_HasUids(),email); if (success == false) { wprintf(L"%s\n",imap.lastErrorText()); return; } // The email should contain an attached email. // The Invoice XML is contained within the attached email. CkEmailW attachedEmail; success = email.GetAttachedEmail(0,attachedEmail); if (success == false) { wprintf(L"%s\n",email.lastErrorText()); return; } // Get the MIME of the attached email.. CkStringBuilderW sbMime; success = attachedEmail.GetMimeSb(sbMime); // Load it into a Chilkat MIME object. CkMimeW mime; success = mime.LoadMimeSb(sbMime); // Examine the structure of the MIME. wprintf(L"%s\n",mime.getStructure(L"text")); // The MIME has this structure: // multipart/mixed // application/octet-stream // application/octet-stream <-- This is where the XML is contained. It is within an opaque signature. // text/plain // The 2nd application/octet-stream MIME header looks like this: // ------=_Part_329673_-1348225228.1579889273592 // Content-Type: application/octet-stream; name="SM99999_99aaa.xml.p7m" // Content-Transfer-Encoding: base64 // Content-Disposition: attachment; filename="SM99999_99aaa.xml.p7m" // Let's get the binary content of the .p7m CkBinDataW bdP7m; // Get the 2nd sub-part, at index 1 because index 0 is the 1st sub-part. CkMimeW mimeP7m; success = mime.PartAt(1,mimeP7m); if (success == false) { wprintf(L"%s\n",mime.lastErrorText()); return; } if (mime.get_LastMethodSuccess() != true) { wprintf(L"Failed to get 2nd sub-part. Perhaps the MIME does not have a 2nd sub-part?\n"); return; } success = mimeP7m.GetBodyBd(bdP7m); // Verify the signature, which also extracts the content contained within the opaque signature. CkCrypt2W crypt; success = crypt.OpaqueVerifyBd(bdP7m); if (success == false) { wprintf(L"%s\n",crypt.lastErrorText()); return; } // The bdP7m now contains the Invoice XML. // Load it into an XML object. CkXmlW xml; success = xml.LoadBd(bdP7m,true); wprintf(L"%s\n",xml.getXml()); // We have XML such as the following: // // <?xml version="1.0" encoding="windows-1252"?> // <?xml-stylesheet type="text/xsl" href="fatturapa_v1.2.xsl"?> // <p:FatturaElettronica versione="FPR12" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" // xmlns:p="http://ivaservizi.agenziaentrate.gov.it/docs/xsd/fatture/v1.2" // xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> // <FatturaElettronicaHeader> // ... // </FatturaElettronicaHeader> // <FatturaElettronicaBody> // ... // </FatturaElettronicaBody> // </p:FatturaElettronica> // Use this online tool to generate parsing code from sample XML: // Generate Parsing Code from XML wprintf(L"success.\n"); } |
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