Chilkat Examples

ChilkatHOME.NET Core C#Android™AutoItCC#C++Chilkat2-PythonCkPythonClassic ASPDataFlexDelphi ActiveXDelphi DLLGoJavaLianjaMono C#Node.jsObjective-CPHP ActiveXPHP ExtensionPerlPowerBuilderPowerShellPureBasicRubySQL ServerSwift 2Swift 3,4,5...TclUnicode CUnicode C++VB.NETVBScriptVisual Basic 6.0Visual FoxProXojo Plugin

Delphi DLL Examples

Web API Categories

ASN.1
AWS KMS
AWS Misc
Amazon EC2
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Key Vault
Azure Service Bus
Azure Table Service
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Code Signing
Compression
DKIM / DomainKey
DNS
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
EBICS
ECC
Ed25519
Email Object
Encryption
FTP
FileAccess
Firebase
GMail REST API
GMail SMTP/IMAP/POP
Geolocation
Google APIs
Google Calendar
Google Cloud SQL
Google Cloud Storage
Google Drive
Google Photos
Google Sheets
Google Tasks
Gzip
HTML-to-XML/Text
HTTP

HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)
Java KeyStore (JKS)
MHT / HTML Email
MIME
MS Storage Providers
Microsoft Graph
Misc
NTLM
OAuth1
OAuth2
OIDC
Office365
OneDrive
OpenSSL
Outlook
Outlook Calendar
Outlook Contact
PDF Signatures
PEM
PFX/P12
PKCS11
POP3
PRNG
REST
REST Misc
RSA
SCP
SCard
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
ScMinidriver
SharePoint
SharePoint Online
Signing in the Cloud
Socket/SSL/TLS
Spider
Stream
Tar Archive
ULID/UUID
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl

 

 

 

(Delphi DLL) IMAP Read PEC Email of Aruba and Extract the Invoice XML Files

IMAP Read PEC Email of Aruba and Extract the Invoice XML Files.

Chilkat for Delphi Downloads

Chilkat non-ActiveX DLL for Delphi

Chilkat ActiveX DLL for Delphi

* The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, MessageSet, Imap, Email, StringBuilder, Mime, Xml, Crypt2, BinData;

...

procedure TForm1.Button1Click(Sender: TObject);
var
imap: HCkImap;
success: Boolean;
fetchUids: Boolean;
messageSet: HCkMessageSet;
email: HCkEmail;
attachedEmail: HCkEmail;
sbMime: HCkStringBuilder;
mime: HCkMime;
bdP7m: HCkBinData;
mimeP7m: HCkMime;
crypt: HCkCrypt2;
xml: HCkXml;

begin
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

imap := CkImap_Create();

// Connect using TLS.
CkImap_putSsl(imap,True);
CkImap_putPort(imap,993);
success := CkImap_Connect(imap,'imap.example.com');
if (success = False) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

// Authenticate
success := CkImap_Login(imap,'email_account_login','email_account_password');
if (success = False) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

// Select an IMAP mailbox
success := CkImap_SelectMailbox(imap,'Inbox/postacert');
if (success = False) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;

// Search for messages having "POSTA CERTIFICATA: Invio File" in the subject.
fetchUids := True;
messageSet := CkImap_Search(imap,'SUBJECT "POSTA CERTIFICATA: Invio File"',fetchUids);
if (CkImap_getLastMethodSuccess(imap) = False) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    Exit;
  end;
if (CkMessageSet_getCount(messageSet) < 1) then
  begin
    Memo1.Lines.Add('No messages found.');
    CkMessageSet_Dispose(messageSet);
    Exit;
  end;
// For our example, we'll process only the 1st email in the messageSet.
// Download the MIME source of the email into a StringBuilder object.
email := CkImap_FetchSingle(imap,CkMessageSet_GetId(messageSet,0),CkMessageSet_getHasUids(messageSet));
if (CkImap_getLastMethodSuccess(imap) = False) then
  begin
    Memo1.Lines.Add(CkImap__lastErrorText(imap));
    CkMessageSet_Dispose(messageSet);
    Exit;
  end;

CkMessageSet_Dispose(messageSet);

// The email should contain an attached email.
// The Invoice XML is contained within the attached email.
attachedEmail := CkEmail_GetAttachedMessage(email,0);
if (CkEmail_getLastMethodSuccess(email) = False) then
  begin
    Memo1.Lines.Add(CkEmail__lastErrorText(email));
    CkEmail_Dispose(email);
    Exit;
  end;
CkEmail_Dispose(email);

// Get the MIME of the attached email..
sbMime := CkStringBuilder_Create();
success := CkEmail_GetMimeSb(attachedEmail,sbMime);
CkEmail_Dispose(attachedEmail);

// Load it into a Chilkat MIME object.
mime := CkMime_Create();
success := CkMime_LoadMimeSb(mime,sbMime);

// Examine the structure of the MIME.
Memo1.Lines.Add(CkMime__getStructure(mime,'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
bdP7m := CkBinData_Create();
// Get the 2nd sub-part, at index 1 because index 0 is the 1st sub-part.
mimeP7m := CkMime_GetPart(mime,1);
if (CkMime_getLastMethodSuccess(mime) <> True) then
  begin
    Memo1.Lines.Add('Failed to get 2nd sub-part. Perhaps the MIME does not have a 2nd sub-part?');
    Exit;
  end;
success := CkMime_GetBodyBd(mimeP7m,bdP7m);
CkMime_Dispose(mimeP7m);

// Verify the signature, which also extracts the content contained within the opaque signature.
crypt := CkCrypt2_Create();
success := CkCrypt2_OpaqueVerifyBd(crypt,bdP7m);
if (success = False) then
  begin
    Memo1.Lines.Add(CkCrypt2__lastErrorText(crypt));
    Exit;
  end;

// The bdP7m now contains the Invoice XML.
// Load it into an XML object.
xml := CkXml_Create();
success := CkXml_LoadBd(xml,bdP7m,True);

Memo1.Lines.Add(CkXml__getXml(xml));

// 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

Memo1.Lines.Add('success.');

CkImap_Dispose(imap);
CkStringBuilder_Dispose(sbMime);
CkMime_Dispose(mime);
CkBinData_Dispose(bdP7m);
CkCrypt2_Dispose(crypt);
CkXml_Dispose(xml);

end;

 

© 2000-2024 Chilkat Software, Inc. All Rights Reserved.