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Set an IMAP TLS Client Certificate from a PFX File

Demonstrates the Chilkat Imap.SetSslClientCertPfx method, which supplies a TLS client certificate and private key from a PKCS #12/PFX file. The first argument is the .pfx or .p12 file path and the second is its password. Call it before connecting.

Note: The certificate path is relative to the application's current working directory. Supply the path to your own certificate file.

Background: A PFX (PKCS #12) file bundles a certificate together with its private key in a single password-protected file — the format Windows and many corporate PKI tools export. This is the counterpart to SetSslClientCertPem: use it when your credentials are packaged as one .pfx rather than as separate PEM files.

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const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // Demonstrates the Imap.SetSslClientCertPfx method, which supplies a TLS client certificate
    // and private key from a PKCS #12/PFX file.  The 1st argument is the .pfx/.p12 file path and
    // the 2nd is its password.  It must be called before connecting.

    const imap = try chilkat.Imap.init();
    defer imap.deinit();

    imap.setSsl(true);
    imap.setPort(993);

    // The PFX password is not hard-coded in source.  Insert code here to obtain it from an
    // interactive prompt, environment variable, or a secrets vault.
    const pfx_password: [:0]const u8 = "";

    // Provide the PFX client certificate BEFORE connecting.
    imap.setSslClientCertPfx("qa_data/client.pfx", pfx_password) catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };

    imap.connect("imap.example.com") catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };

    imap.login("user@example.com", "myPassword") catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };

    imap.disconnect() catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };
}