ArchiveReader Class

Properties   Methods   Events   Config Settings   Errors  

The ArchiveReader class supports inspection and extraction of files from zip, tar, gzip and bzip2 archives.

Syntax

class secureblackbox.ArchiveReader

Remarks

ArchiveReader offers capabilities of inspecting, editing, and unpacking archived files from a variety of archive formats. ArchiveReader archiveReader = new ArchiveReader(); archiveReader.setDecryptionPassword("MyPassword"); // the decryption password for the archive // Opens the archive file, first param is the archive type and the second one the path of the archive archiveReader.open(ArchiveReader.aftZip,"C:/MyArchives/folder.zip"); // extract all the files to the path provided archiveReader.extractAll("C:/Extracted/extractedFolder");

The following common archive formats are supported:

• ZIP (.zip)
• GZip (.gz)
• BZip2 (.bz2)
• Tar+GZip (.tar.gz)
• Tar+Bzip2 (.tar.bz2)

Working with ArchiveReader

Work with ArchiveReader builds on the following steps:

Opening the archive.

On this step the component loads the provided compressed data into its memory. You can pass the compressed data as a byte array (open_bytes), as a stream (open_stream), or load it from a disk file (open).

Inspecting the archive contents

Use the files collection to access information about individual files stored in the opened archive. On this stage you can adjust the individual files objects' > and > properties to configure bespoke processing for specific files.

Extracting the files

Call extract_all to initiate extraction of all the files contained in the archive and selected using the > property, or extract to extract a single file. The component notifies your code about each individual extraction using its on_before_extract_file and on_after_extract_file events. You can use on_before_extract_file to provide your final decision about the extraction of a particular file.

Use decryption_password property to specify a decryption password for an archive and/or a specific entry within it. If the password is required but wasn't set, or if the provided password is wrong, the component will fire the on_decryption_password_needed event. This event is fired repeatedly until the correct password is provided or its Cancel parameter is returned as true.

Closing the archive

Once you are finished with the archive, call the component's close method to close the archive file and release the associated memory.

Property List

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The following is the full list of the properties of the class with short descriptions. Click on the links for further details.

Method List

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The following is the full list of the methods of the class with short descriptions. Click on the links for further details.

Event List

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The following is the full list of the events fired by the class with short descriptions. Click on the links for further details.

Config Settings

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The following is a list of config settings for the class with short descriptions. Click on the links for further details.

archive_type Property

The type of the archive file.

Syntax

def get_archive_type() -> int: ...

archive_type = property(get_archive_type, None)

Default Value

0

Remarks

Use this property to learn about the type (format) of the opened archive.

This property is read-only.

decryption_cert_count Property

The number of records in the DecryptionCert arrays.

Syntax

def get_decryption_cert_count() -> int: ...
def set_decryption_cert_count(value: int) -> None: ...

decryption_cert_count = property(get_decryption_cert_count, set_decryption_cert_count)

Default Value

0

Remarks

This property controls the size of the following arrays:

• decryption_cert_bytes
• decryption_cert_handle

The array indices start at 0 and end at decryption_cert_count - 1.

decryption_cert_bytes Property

Returns the raw certificate data in DER format.

Syntax

def get_decryption_cert_bytes(decryption_cert_index: int) -> bytes: ...

Remarks

Returns the raw certificate data in DER format.

The decryption_cert_index parameter specifies the index of the item in the array. The size of the array is controlled by the decryption_cert_count property.

This property is read-only.

decryption_cert_handle Property

Allows to get or set a 'handle', a unique identifier of the underlying property object.

Syntax

def get_decryption_cert_handle(decryption_cert_index: int) -> int: ...
def set_decryption_cert_handle(decryption_cert_index: int, value: int) -> None: ...

Default Value

0

Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation. pdfSigner.setSigningCertHandle(certMgr.getCertHandle());

The decryption_cert_index parameter specifies the index of the item in the array. The size of the array is controlled by the decryption_cert_count property.

decryption_password Property

The decryption password.

Syntax

def get_decryption_password() -> str: ...
def set_decryption_password(value: str) -> None: ...

decryption_password = property(get_decryption_password, set_decryption_password)

Default Value

""

Remarks

Use this property to provide the decryption password for the archive.

file_data Property

The contents of the last extracted file.

Syntax

def get_file_data() -> bytes: ...
def set_file_data(value: bytes) -> None: ...

file_data = property(get_file_data, set_file_data)

Remarks

Use this property to get the contents of the last extracted file with DataSource set to stBuffer (2). This setting is writable to let you clear up any earlier retrieved content to reduce memory footprint.

file_count Property

The number of records in the File arrays.

Syntax

def get_file_count() -> int: ...
def set_file_count(value: int) -> None: ...

file_count = property(get_file_count, set_file_count)

Default Value

0

Remarks

This property controls the size of the following arrays:

• file_action
• file_attributes
• file_compressed_size
• file_data_source
• file_directory
• file_encryption_algorithm
• file_encryption_key_length
• file_encryption_type
• file_file_name
• file_folder
• file_local_path
• file_m_time
• file_new_file
• file_path
• file_signature_count
• file_signed
• file_size

The array indices start at 0 and end at file_count - 1.

file_action Property

The action to apply to the file.

Syntax

def get_file_action(file_index: int) -> int: ...
def set_file_action(file_index: int, value: int) -> None: ...

Default Value

0

Remarks

The action to apply to the file.

Use this property to control the action that should be applied to the file during the compression or extraction. The following actions are supported:

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

file_attributes Property

Provides access to file attributes.

Syntax

def get_file_attributes(file_index: int) -> str: ...
def set_file_attributes(file_index: int, value: str) -> None: ...

Default Value

""

Remarks

Provides access to file attributes.

ZIP archives support provision of Windows (or DOS, as they are called historically) or Unix file attributes. Use this property to provide the attributes or read them out of an existing archive.

Use "dos:" or "unix:" prefixes to indicate what kind of attributes you need to include:

Writer.Files[0].Attributes = "unix:-rwxr-xr-x"; Writer.Files[1].Attributes = "unix:-r--r--r--"; Writer.Files[2].Attributes = "dos:readonly"; Writer.Files[3].Attributes = "dos:readonly;hidden"; // supported values: readonly, hidden, system, volumeLabel, directory, archive

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

file_compressed_size Property

The size of the file after compression.

Syntax

def get_file_compressed_size(file_index: int) -> int: ...

Default Value

0

Remarks

The size of the file after compression.

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

This property is read-only.

file_data_source Property

The type of the data source for this entry.

Syntax

def get_file_data_source(file_index: int) -> int: ...
def set_file_data_source(file_index: int, value: int) -> None: ...

Default Value

0

Remarks

The type of the data source for this entry.

Use this property to control the data source for this entry.

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

file_directory Property

Tells if the entry is a directory or a regular file.

Syntax

def get_file_directory(file_index: int) -> bool: ...

Default Value

FALSE

Remarks

Tells if the entry is a directory or a regular file.

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

This property is read-only.

file_encryption_algorithm Property

Returns the symmetric algorithm that was used to encrypt the file.

Syntax

def get_file_encryption_algorithm(file_index: int) -> str: ...

Default Value

""

Remarks

Returns the symmetric algorithm that was used to encrypt the file.

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

This property is read-only.

file_encryption_key_length Property

Returns the length, in bits, of the encryption key.

Syntax

def get_file_encryption_key_length(file_index: int) -> int: ...

Default Value

0

Remarks

Returns the length, in bits, of the encryption key.

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

This property is read-only.

file_encryption_type Property

The type of encryption applied to the file.

Syntax

def get_file_encryption_type(file_index: int) -> int: ...

Default Value

0

Remarks

The type of encryption applied to the file.

Use this property to find out what kind of encryption was applied to the file.

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

This property is read-only.

file_file_name Property

The original name of the compressed file or folder.

Syntax

def get_file_file_name(file_index: int) -> str: ...
def set_file_file_name(file_index: int, value: str) -> None: ...

Default Value

""

Remarks

The original name of the compressed file or folder.

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

file_folder Property

The containing folder of the entry.

Syntax

def get_file_folder(file_index: int) -> str: ...

Default Value

""

Remarks

The containing folder of the entry.

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

This property is read-only.

file_local_path Property

The local path associated with this entry.

Syntax

def get_file_local_path(file_index: int) -> str: ...
def set_file_local_path(file_index: int, value: str) -> None: ...

Default Value

""

Remarks

The local path associated with this entry. It typically specifies the source path that the data should be taken from, or the destination it should be extracted to.

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

file_m_time Property

The entry's last modification time.

Syntax

def get_file_m_time(file_index: int) -> str: ...
def set_file_m_time(file_index: int, value: str) -> None: ...

Default Value

""

Remarks

The entry's last modification time.

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

file_new_file Property

Indicates whether the entry corresponds to a file to be added to the archive.

Syntax

def get_file_new_file(file_index: int) -> bool: ...

Default Value

FALSE

Remarks

Indicates whether the entry corresponds to a file to be added to the archive.

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

This property is read-only.

file_path Property

The full internal path of the archived entry.

Syntax

def get_file_path(file_index: int) -> str: ...

Default Value

""

Remarks

The full internal path of the archived entry.

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

This property is read-only.

file_signature_count Property

The number of signatures covering the entry.

Syntax

def get_file_signature_count(file_index: int) -> int: ...

Default Value

0

Remarks

The number of signatures covering the entry.

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

This property is read-only.

file_signed Property

Indicates whether the entry is signed.

Syntax

def get_file_signed(file_index: int) -> bool: ...

Default Value

FALSE

Remarks

Indicates whether the entry is signed.

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

This property is read-only.

file_size Property

The size of the file before compression.

Syntax

def get_file_size(file_index: int) -> int: ...

Default Value

0

Remarks

The size of the file before compression.

The file_index parameter specifies the index of the item in the array. The size of the array is controlled by the file_count property.

This property is read-only.

fips_mode Property

Reserved.

Syntax

def get_fips_mode() -> bool: ...
def set_fips_mode(value: bool) -> None: ...

fips_mode = property(get_fips_mode, set_fips_mode)

Default Value

FALSE

Remarks

This property is reserved for future use.

hash_algorithm Property

Returns the hash algorithm that was used to generate the signature.

Syntax

def get_hash_algorithm() -> str: ...

hash_algorithm = property(get_hash_algorithm, None)

Default Value

""

Remarks

Check this property after calling extract to get the hash algorithm which was used to calculate the signature.

This property is read-only.

known_cert_count Property

The number of records in the KnownCert arrays.

Syntax

def get_known_cert_count() -> int: ...
def set_known_cert_count(value: int) -> None: ...

known_cert_count = property(get_known_cert_count, set_known_cert_count)

Default Value

0

Remarks

This property controls the size of the following arrays:

• known_cert_bytes
• known_cert_handle

The array indices start at 0 and end at known_cert_count - 1.

known_cert_bytes Property

Returns the raw certificate data in DER format.

Syntax

def get_known_cert_bytes(known_cert_index: int) -> bytes: ...

Remarks

Returns the raw certificate data in DER format.

The known_cert_index parameter specifies the index of the item in the array. The size of the array is controlled by the known_cert_count property.

This property is read-only.

known_cert_handle Property

Allows to get or set a 'handle', a unique identifier of the underlying property object.

Syntax

def get_known_cert_handle(known_cert_index: int) -> int: ...
def set_known_cert_handle(known_cert_index: int, value: int) -> None: ...

Default Value

0

Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation. pdfSigner.setSigningCertHandle(certMgr.getCertHandle());

The known_cert_index parameter specifies the index of the item in the array. The size of the array is controlled by the known_cert_count property.

opened Property

Indicates if the class is in the open state.

Syntax

def get_opened() -> bool: ...

opened = property(get_opened, None)

Default Value

FALSE

Remarks

Use this property to check if the component provides access to an open archive file.

This property is read-only.

overwrite Property

Whether the class should overwrite existing files.

Syntax

def get_overwrite() -> bool: ...
def set_overwrite(value: bool) -> None: ...

overwrite = property(get_overwrite, set_overwrite)

Default Value

FALSE

Remarks

Enable this property to force overwriting of existing files.

signature_validation_result Property

The signature validation result.

Syntax

def get_signature_validation_result() -> int: ...

signature_validation_result = property(get_signature_validation_result, None)

Default Value

0

Remarks

Use this property to check the result of the most recent signature validation.

This property is read-only.

signing_cert_bytes Property

Returns the raw certificate data in DER format.

Syntax

def get_signing_cert_bytes() -> bytes: ...

signing_cert_bytes = property(get_signing_cert_bytes, None)

Remarks

Returns the raw certificate data in DER format.

This property is read-only.

signing_cert_ca Property

Indicates whether the certificate has a CA capability.

Syntax

def get_signing_cert_ca() -> bool: ...

signing_cert_ca = property(get_signing_cert_ca, None)

Default Value

FALSE

Remarks

Indicates whether the certificate has a CA capability. For the certificate to be considered a CA, it must have its Basic Constraints extension set with the CA indicator enabled.

Set this property when generating a new certificate to have its Basic Constraints extension generated automatically.

This property is read-only.

signing_cert_ca_key_id Property

A unique identifier (fingerprint) of the CA certificate's cryptographic key.

Syntax

def get_signing_cert_ca_key_id() -> bytes: ...

signing_cert_ca_key_id = property(get_signing_cert_ca_key_id, None)

Remarks

A unique identifier (fingerprint) of the CA certificate's cryptographic key.

Authority Key Identifier is a certificate extension which allows identification of certificates belonging to the same issuer, but with different public keys. It is a de-facto standard to include this extension in all certificates to facilitate chain building.

This setting cannot be set when generating a certificate as it always derives from another certificate property. CertificateManager generates this setting automatically if enough information is available to it: for self-signed certificates, this value is copied from the signing_cert_subject_key_id setting, and for lower-level certificates, from the parent certificate's subject key ID extension.

This property is read-only.

signing_cert_crl_distribution_points Property

Contains a list of locations of CRL distribution points used to check this certificate's validity.

Syntax

def get_signing_cert_crl_distribution_points() -> str: ...

signing_cert_crl_distribution_points = property(get_signing_cert_crl_distribution_points, None)

Default Value

""

Remarks

Contains a list of locations of CRL distribution points used to check this certificate's validity. The list is taken from the respective certificate extension.

Use this property when generating a certificate to provide a list of CRL endpoints that should be made part of the new certificate.

The endpoints are provided as a list of CRLF-separated URLs. Note that this differs from the behaviour used in earlier product versions, where the "|" character was used as the location separator.

This property is read-only.

signing_cert_curve Property

Specifies the elliptic curve associated with the certificate's public key.

Syntax

def get_signing_cert_curve() -> str: ...

signing_cert_curve = property(get_signing_cert_curve, None)

Default Value

""

Remarks

Specifies the elliptic curve associated with the certificate's public key. This setting only applies to certificates containing EC keys.

This property is read-only.

signing_cert_fingerprint Property

Contains the fingerprint (a hash imprint) of this certificate.

Syntax

def get_signing_cert_fingerprint() -> str: ...

signing_cert_fingerprint = property(get_signing_cert_fingerprint, None)

Default Value

""

Remarks

Contains the fingerprint (a hash imprint) of this certificate.

While there is no formal standard defining what a fingerprint is, a SHA1 hash of the certificate's DER-encoded body is typically used.

This property is read-only.

signing_cert_friendly_name Property

Contains an associated alias (friendly name) of the certificate.

Syntax

def get_signing_cert_friendly_name() -> str: ...

signing_cert_friendly_name = property(get_signing_cert_friendly_name, None)

Default Value

""

Remarks

Contains an associated alias (friendly name) of the certificate. The friendly name is not a property of a certificate: it is maintained by the certificate media rather than being included in its DER representation. Windows certificate stores are one example of media that does support friendly names.

This property is read-only.

signing_cert_handle Property

Allows to get or set a 'handle', a unique identifier of the underlying property object.

Syntax

def get_signing_cert_handle() -> int: ...

signing_cert_handle = property(get_signing_cert_handle, None)

Default Value

0

Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation. pdfSigner.setSigningCertHandle(certMgr.getCertHandle());

This property is read-only.

signing_cert_hash_algorithm Property

Provides means to set the hash algorithm to be used in the subsequent operation on the certificate (such as generation or key signing).

Syntax

def get_signing_cert_hash_algorithm() -> str: ...

signing_cert_hash_algorithm = property(get_signing_cert_hash_algorithm, None)

Default Value

""

Remarks

Provides means to set the hash algorithm to be used in the subsequent operation on the certificate (such as generation or key signing). It is not a property of a certificate; use signing_cert_sig_algorithm to find out the hash algorithm that is part of the certificate signature.

This property is read-only.

signing_cert_issuer Property

The common name of the certificate issuer (CA), typically a company name.

Syntax

def get_signing_cert_issuer() -> str: ...

signing_cert_issuer = property(get_signing_cert_issuer, None)

Default Value

""

Remarks

The common name of the certificate issuer (CA), typically a company name. This is part of a larger set of credentials available via signing_cert_issuer_rdn.

This property is read-only.

signing_cert_issuer_rdn Property

A list of Property=Value pairs that uniquely identify the certificate issuer.

Syntax

def get_signing_cert_issuer_rdn() -> str: ...

signing_cert_issuer_rdn = property(get_signing_cert_issuer_rdn, None)

Default Value

""

Remarks

A list of Property=Value pairs that uniquely identify the certificate issuer.

Example: /C=US/O=Nationwide CA/CN=Web Certification Authority

This property is read-only.

signing_cert_key_algorithm Property

Specifies the public key algorithm of this certificate.

Syntax

def get_signing_cert_key_algorithm() -> str: ...

signing_cert_key_algorithm = property(get_signing_cert_key_algorithm, None)

Default Value

"0"

Remarks

Specifies the public key algorithm of this certificate.

Use the signing_cert_key_bits, signing_cert_curve, and signing_cert_public_key_bytes properties to get more details about the key the certificate contains.

This property is read-only.

signing_cert_key_bits Property

Returns the length of the public key in bits.

Syntax

def get_signing_cert_key_bits() -> int: ...

signing_cert_key_bits = property(get_signing_cert_key_bits, None)

Default Value

0

Remarks

Returns the length of the public key in bits.

This value indicates the length of the principal cryptographic parameter of the key, such as the length of the RSA modulus or ECDSA field. The key data returned by the signing_cert_public_key_bytes or signing_cert_private_key_bytes property would typically contain auxiliary values, and therefore be longer.

This property is read-only.

signing_cert_key_fingerprint Property

Returns a SHA1 fingerprint of the public key contained in the certificate.

Syntax

def get_signing_cert_key_fingerprint() -> str: ...

signing_cert_key_fingerprint = property(get_signing_cert_key_fingerprint, None)

Default Value

""

Remarks

Returns a SHA1 fingerprint of the public key contained in the certificate.

Note that the key fingerprint is different from the certificate fingerprint accessible via the signing_cert_fingerprint property. The key fingeprint uniquely identifies the public key, and so can be the same for multiple certificates containing the same key.

This property is read-only.

signing_cert_key_usage Property

Indicates the purposes of the key contained in the certificate, in the form of an OR'ed flag set.

Syntax

def get_signing_cert_key_usage() -> int: ...

signing_cert_key_usage = property(get_signing_cert_key_usage, None)

Default Value

0

Remarks

Indicates the purposes of the key contained in the certificate, in the form of an OR'ed flag set.

This value is a bit mask of the following values:

Set this property before generating the certificate to propagate the key usage flags to the new certificate.

This property is read-only.

signing_cert_key_valid Property

Returns True if the certificate's key is cryptographically valid, and False otherwise.

Syntax

def get_signing_cert_key_valid() -> bool: ...

signing_cert_key_valid = property(get_signing_cert_key_valid, None)

Default Value

FALSE

Remarks

Returns True if the certificate's key is cryptographically valid, and False otherwise.

This property is read-only.

signing_cert_ocsp_locations Property

Locations of OCSP services that can be used to check this certificate's validity in real time, as recorded by the CA.

Syntax

def get_signing_cert_ocsp_locations() -> str: ...

signing_cert_ocsp_locations = property(get_signing_cert_ocsp_locations, None)

Default Value

""

Remarks

Locations of OCSP services that can be used to check this certificate's validity in real time, as recorded by the CA.

Set this property before calling the certificate manager's generate method to propagate it to the new certificate.

The OCSP locations are provided as a list of CRLF-separated URLs. Note that this differs from the behaviour used in earlier product versions, where the "|" character was used as the location separator.

This property is read-only.

signing_cert_policy_i_ds Property

Contains identifiers (OIDs) of the applicable certificate policies.

Syntax

def get_signing_cert_policy_i_ds() -> str: ...

signing_cert_policy_i_ds = property(get_signing_cert_policy_i_ds, None)

Default Value

""

Remarks

Contains identifiers (OIDs) of the applicable certificate policies.

The Certificate Policies extension identifies a sequence of policies under which the certificate has been issued, and which regulate its usage.

Set this property when generating a certificate to propagate the policies information to the new certificate.

The policies are provided as a list of CRLF-separated entries. Note that this differs from the behaviour used in earlier product versions, where the "|" character was used as the policy element separator.

This property is read-only.

signing_cert_public_key_bytes Property

Contains the certificate's public key in DER format.

Syntax

def get_signing_cert_public_key_bytes() -> bytes: ...

signing_cert_public_key_bytes = property(get_signing_cert_public_key_bytes, None)

Remarks

Contains the certificate's public key in DER format.

This typically would contain an ASN.1-encoded public key value. The exact format depends on the type of the public key contained in the certificate.

This property is read-only.

signing_cert_self_signed Property

Indicates whether the certificate is self-signed (root) or signed by an external CA.

Syntax

def get_signing_cert_self_signed() -> bool: ...

signing_cert_self_signed = property(get_signing_cert_self_signed, None)

Default Value

FALSE

Remarks

Indicates whether the certificate is self-signed (root) or signed by an external CA.

This property is read-only.

signing_cert_serial_number Property

Returns the certificate's serial number.

Syntax

def get_signing_cert_serial_number() -> bytes: ...

signing_cert_serial_number = property(get_signing_cert_serial_number, None)

Remarks

Returns the certificate's serial number.

The serial number is a binary string that uniquely identifies a certificate among others issued by the same CA. According to the X.509 standard, the (issuer, serial number) pair should be globally unique to facilitate chain building.

This property is read-only.

signing_cert_sig_algorithm Property

Indicates the algorithm that was used by the CA to sign this certificate.

Syntax

def get_signing_cert_sig_algorithm() -> str: ...

signing_cert_sig_algorithm = property(get_signing_cert_sig_algorithm, None)

Default Value

""

Remarks

Indicates the algorithm that was used by the CA to sign this certificate.

A signature algorithm typically combines hash and public key algorithms together, such as sha256WithRSAEncryption or ecdsa-with-SHA256.

This property is read-only.

signing_cert_subject Property

The common name of the certificate holder, typically an individual's name, a URL, an e-mail address, or a company name.

Syntax

def get_signing_cert_subject() -> str: ...

signing_cert_subject = property(get_signing_cert_subject, None)

Default Value

""

Remarks

The common name of the certificate holder, typically an individual's name, a URL, an e-mail address, or a company name. This is part of a larger set of credentials available via signing_cert_subject_rdn.

This property is read-only.

signing_cert_subject_key_id Property

Contains a unique identifier of the certificate's cryptographic key.

Syntax

def get_signing_cert_subject_key_id() -> bytes: ...

signing_cert_subject_key_id = property(get_signing_cert_subject_key_id, None)

Remarks

Contains a unique identifier of the certificate's cryptographic key.

Subject Key Identifier is a certificate extension which allows a specific public key to be associated with a certificate holder. Typically, subject key identifiers of CA certificates are recorded as respective CA key identifiers in the subordinate certificates that they issue, which facilitates chain building.

The signing_cert_subject_key_id and signing_cert_ca_key_id properties of self-signed certificates typically contain identical values, as in that specific case, the issuer and the subject are the same entity.

This property is read-only.

signing_cert_subject_rdn Property

A list of Property=Value pairs that uniquely identify the certificate holder (subject).

Syntax

def get_signing_cert_subject_rdn() -> str: ...

signing_cert_subject_rdn = property(get_signing_cert_subject_rdn, None)

Default Value

""

Remarks

A list of Property=Value pairs that uniquely identify the certificate holder (subject).

Depending on the purpose of the certificate and the policies of the CA that issued it, the values included in the subject record may differ drastically and contain business or personal names, web URLs, email addresses, and other data.

Example: /C=US/O=Oranges and Apples, Inc./OU=Accounts Receivable/1.2.3.4.5=Value with unknown OID/CN=Margaret Watkins.

This property is read-only.

signing_cert_valid_from Property

The time point at which the certificate becomes valid, in UTC.

Syntax

def get_signing_cert_valid_from() -> str: ...

signing_cert_valid_from = property(get_signing_cert_valid_from, None)

Default Value

""

Remarks

The time point at which the certificate becomes valid, in UTC.

This property is read-only.

signing_cert_valid_to Property

The time point at which the certificate expires, in UTC.

Syntax

def get_signing_cert_valid_to() -> str: ...

signing_cert_valid_to = property(get_signing_cert_valid_to, None)

Default Value

""

Remarks

The time point at which the certificate expires, in UTC.

This property is read-only.

close Method

Closes the current archive.

Syntax

def close() -> None: ...

Remarks

Use this method to close the archive that is currently opened and release the associated memory. You won't be able to extract files or access the archive details after closing the archive.

config Method

Sets or retrieves a configuration setting.

Syntax

def config(configuration_string: str) -> str: ...

Remarks

config is a generic method available in every class. It is used to set and retrieve configuration settings for the class.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the config method.

To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).

To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.

do_action Method

Performs an additional action.

Syntax

def do_action(action_id: str, action_params: str) -> str: ...

Remarks

do_action is a generic method available in every class. It is used to perform an additional action introduced after the product major release. The list of actions is not fixed, and may be flexibly extended over time.

The unique identifier (case insensitive) of the action is provided in the ActionID parameter.

ActionParams contains the value of a single parameter, or a list of multiple parameters for the action in the form of PARAM1=VALUE1;PARAM2=VALUE2;....

extract Method

Extracts a single file from the archive.

Syntax

def extract(path: str, local_path: str, preserve_full_path: bool) -> None: ...

Remarks

Use this method to extract a single file from the archive.

Pass the internal path to the entry in the archive via the Path parameter, and the path where to save the extracted entry via the LocalPath parameter. Set PreserveFullPath to true to enforce full-path extraction, in which case LocalPath would indicate the mount point at which the full Path needs to be rooted. If PreserveFullPath is false, the LocalPath provides the final location for the extracted file.

Use extract_all to extract all files at once.

extract_all Method

Extract all the files contained in the archive.

Syntax

def extract_all(output_path: str) -> None: ...

Remarks

Use this method to extract all the files contained in the archive file. Pass the path where the extracted files should be saved via the OutputPath parameter.

You can cherry-pick the files to extract, as well as choose different extraction destinations (including files at custom locations, streams, or memory buffers) by subscribing to on_before_extract_file and on_after_extract_file events.

Use extract to extract a single file.

open Method

Opens an archive file.

Syntax

def open(archive_type: int, archive_path: str) -> None: ...

Remarks

Call this method to open an archive file. Provide the archive type via the ArchiveType parameter, and the path via the ArchivePath parameter.

The following archive types (formats) are supported:

open_bytes Method

Loads an archive file from a byte array.

Syntax

def open_bytes(archive_type: int, archive_bytes: bytes) -> None: ...

Remarks

Call this method to load an archive file from a byte array. Provide the archive type via the ArchiveType parameter, and the byte array containing the archive data via the ArchiveBytes parameter.

The following archive types (formats) are supported:

reset Method

Resets the class settings.

Syntax

def reset() -> None: ...

Remarks

reset is a generic method available in every class.

on_action_needed Event

Requests a decision from the application in case of a conflict.

Syntax

class ArchiveReaderActionNeededEventParams(object):
  @property
  def what_for() -> int: ...

  @property
  def entry_path() -> str: ...

  @property
  def dest_path() -> str: ...

  @property
  def description() -> str: ...

  @property
  def action() -> int: ...
  @action.setter
  def action(value) -> None: ...

# In class ArchiveReader:
@property
def on_action_needed() -> Callable[[ArchiveReaderActionNeededEventParams], None]: ...
@on_action_needed.setter
def on_action_needed(event_hook: Callable[[ArchiveReaderActionNeededEventParams], None]) -> None: ...

Remarks

The component fires this event to request a decision from the application when it encounters a conflict.

The WhatFor parameter can take one of the following values:

You can control the further flow from the event handler by setting the Action parameter to one of the following values:

on_after_extract_file Event

Marks the completion of extraction of an archived file.

Syntax

class ArchiveReaderAfterExtractFileEventParams(object):
  @property
  def path() -> str: ...

  @property
  def file_size() -> int: ...

  @property
  def data_source() -> int: ...

# In class ArchiveReader:
@property
def on_after_extract_file() -> Callable[[ArchiveReaderAfterExtractFileEventParams], None]: ...
@on_after_extract_file.setter
def on_after_extract_file(event_hook: Callable[[ArchiveReaderAfterExtractFileEventParams], None]) -> None: ...

Remarks

Subscribe to this event to get notified about the completion of extraction of an archived file.

The Path parameter specifies the internal path to the entry inside the archive. The FileSize indicates the size of the decompressed file, and the DataSource specifies the type of the destination media.

on_before_extract_file Event

Marks the start of extraction of an archived file.

Syntax

class ArchiveReaderBeforeExtractFileEventParams(object):
  @property
  def path() -> str: ...

  @property
  def file_size() -> int: ...

  @property
  def data_source() -> int: ...
  @data_source.setter
  def data_source(value) -> None: ...

  @property
  def extraction_path() -> str: ...
  @extraction_path.setter
  def extraction_path(value) -> None: ...

  @property
  def skip() -> bool: ...
  @skip.setter
  def skip(value) -> None: ...

# In class ArchiveReader:
@property
def on_before_extract_file() -> Callable[[ArchiveReaderBeforeExtractFileEventParams], None]: ...
@on_before_extract_file.setter
def on_before_extract_file(event_hook: Callable[[ArchiveReaderBeforeExtractFileEventParams], None]) -> None: ...

Remarks

Subscribe to this event to be notified about the start of extraction of an archived entry. The handler of this event is a good place to tune up the destination media.

The Path parameter indicates the path to the extracted entry in the archive. The FileSize specifies the uncompressed size of the file. Set the by-reference DataSource parameter in accordance with the desired extraction media type:

If saving to a stream or buffer, use on_after_extract_file to collect the extracted data from file_stream or file_data, and dispose of any objects allocated in this event handler (such as the output stream).

Use the Skip parameter to cancel extraction of this file and proceed to the next one.

on_decryption_password_needed Event

Requests a decryption password, when needed.

Syntax

class ArchiveReaderDecryptionPasswordNeededEventParams(object):
  @property
  def password_target() -> str: ...

  @property
  def cancel() -> bool: ...
  @cancel.setter
  def cancel(value) -> None: ...

# In class ArchiveReader:
@property
def on_decryption_password_needed() -> Callable[[ArchiveReaderDecryptionPasswordNeededEventParams], None]: ...
@on_decryption_password_needed.setter
def on_decryption_password_needed(event_hook: Callable[[ArchiveReaderDecryptionPasswordNeededEventParams], None]) -> None: ...

Remarks

Class fires this event when it needs a password to decrypt the archive. Subscribe to this event if you expect to process encrypted archives.

Inside the event handler, please assign the correct password to decryption_password property, or set Cancel parameter to true to terminate the processing.

The PasswordTarget parameter references the object that is protected with the requested password.

on_error Event

Reports information about errors during archive processing.

Syntax

class ArchiveReaderErrorEventParams(object):
  @property
  def error_code() -> int: ...

  @property
  def description() -> str: ...

# In class ArchiveReader:
@property
def on_error() -> Callable[[ArchiveReaderErrorEventParams], None]: ...
@on_error.setter
def on_error(event_hook: Callable[[ArchiveReaderErrorEventParams], None]) -> None: ...

Remarks

The event is fired in case of exceptional conditions during archive processing.

ErrorCode contains an error code and Description contains a textual description of the error.

on_notification Event

This event notifies the application about an underlying control flow event.

Syntax

class ArchiveReaderNotificationEventParams(object):
  @property
  def event_id() -> str: ...

  @property
  def event_param() -> str: ...

# In class ArchiveReader:
@property
def on_notification() -> Callable[[ArchiveReaderNotificationEventParams], None]: ...
@on_notification.setter
def on_notification(event_hook: Callable[[ArchiveReaderNotificationEventParams], None]) -> None: ...

Remarks

The class fires this event to let the application know about some event, occurrence, or milestone in the class. For example, it may fire to report completion of the document processing. The list of events being reported is not fixed, and may be flexibly extended over time.

The unique identifier of the event is provided in the EventID parameter. EventParam contains any parameters accompanying the occurrence. Depending on the type of the class, the exact action it is performing, or the document being processed, one or both may be omitted.

on_progress Event

Reports the progress of data extraction.

Syntax

class ArchiveReaderProgressEventParams(object):
  @property
  def processed() -> int: ...

  @property
  def total() -> int: ...

  @property
  def overall_processed() -> int: ...

  @property
  def overall_total() -> int: ...

  @property
  def cancel() -> bool: ...
  @cancel.setter
  def cancel(value) -> None: ...

# In class ArchiveReader:
@property
def on_progress() -> Callable[[ArchiveReaderProgressEventParams], None]: ...
@on_progress.setter
def on_progress(event_hook: Callable[[ArchiveReaderProgressEventParams], None]) -> None: ...

Remarks

Subscribe to this event to be notified about decompression progress.

Processed and Total report the progress of extraction of the current entry; OverallProcessed and OverallTotal report the progress of the whole operation. Set Cancel to true to stop the operation.

on_recipient_found Event

Informs the application that an archive is encrypted with a digital certificate.

Syntax

class ArchiveReaderRecipientFoundEventParams(object):
  @property
  def public_key_hash() -> str: ...

  @property
  def cert_found() -> bool: ...

# In class ArchiveReader:
@property
def on_recipient_found() -> Callable[[ArchiveReaderRecipientFoundEventParams], None]: ...
@on_recipient_found.setter
def on_recipient_found(event_hook: Callable[[ArchiveReaderRecipientFoundEventParams], None]) -> None: ...

Remarks

The class fires this event when processing archives encrypted with an X.509 certificate. CertFound indicates whether the matching certificate has been found in decryption_certificates collection. The PublicKeyHash contains the hash (fingerprint) of the certificate's public key.

This event is an opportunity to add the decryption certificate on a later stage if it was not known at the start of the processing.

on_signature_found Event

Signifies the start of signature validation.

Syntax

class ArchiveReaderSignatureFoundEventParams(object):
  @property
  def issuer_rdn() -> str: ...

  @property
  def serial_number() -> bytes: ...

  @property
  def subject_key_id() -> bytes: ...

  @property
  def cert_found() -> bool: ...

  @property
  def validate_signature() -> bool: ...
  @validate_signature.setter
  def validate_signature(value) -> None: ...

  @property
  def validate_chain() -> bool: ...
  @validate_chain.setter
  def validate_chain(value) -> None: ...

# In class ArchiveReader:
@property
def on_signature_found() -> Callable[[ArchiveReaderSignatureFoundEventParams], None]: ...
@on_signature_found.setter
def on_signature_found(event_hook: Callable[[ArchiveReaderSignatureFoundEventParams], None]) -> None: ...

Remarks

This event tells the application that signature validation is about to start, and provides the details about the signer's certificate via its IssuerRDN, SerialNumber, and SubjectKeyID parameters. It fires for every signature located in the verified document or message.

The CertFound parameter is set to True if the class has found the needed certificate in one of the known locations, and to False otherwise, in which case you must provide it manually via the known_certificates property.

Signature validation consists of two independent stages: cryptographic signature validation and chain validation. Separate validation results are reported for each, with the and properties respectively.

Use the ValidateSignature and ValidateChain parameters to tell the verifier which stages to include in the validation.

ArchiveReader Config Settings

The class accepts one or more of the following configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the config method.

ArchiveReader Config Settings

Base Config Settings

ArchiveReader Errors