CodeSign C++ Reference Documentation
CkCodeSign
Current Version: 11.1.0
A class for signing Windows executables and DLLs, and for verifying signed executables and DLLs. This is a Windows-only class. The class and functions will exist on non-Windows systems, but will be no-op functions (stubs) that simply return a failed status.
Object Creation
// Local variable on the stack CkCodeSign obj; // Dynamically allocate/delete CkCodeSign *pObj = new CkCodeSign(); // ... delete pObj;
Properties
DebugLogFilePath
const char *debugLogFilePath(void);
void put_DebugLogFilePath(const char *ansiOrUtf8Str);
If set to a file path, this property logs the LastErrorText of each Chilkat method or property call to the specified file. This logging helps identify the context and history of Chilkat calls leading up to any crash or hang, aiding in debugging.
Enabling the VerboseLogging property provides more detailed information. This property is mainly used for debugging rare instances where a Chilkat method call causes a hang or crash, which should generally not happen.
Possible causes of hangs include:
- A timeout property set to 0, indicating an infinite timeout.
- A hang occurring within an event callback in the application code.
- An internal bug in the Chilkat code causing the hang.
HeartbeatMs
void put_HeartbeatMs(int newVal);
The interval in milliseconds between each AbortCheck event callback, which enables an application to abort certain method calls before they complete. By default, HeartbeatMs is set to 0, meaning no AbortCheck event callbacks will trigger.
LastErrorHtml
Provides HTML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.
topLastErrorText
Provides plain text information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.
LastErrorXml
Provides XML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.
topLastMethodSuccess
void put_LastMethodSuccess(bool newVal);
Indicates the success or failure of the most recent method call: true means success, false means failure. This property remains unchanged by property setters or getters. This method is present to address challenges in checking for null or Nothing returns in certain programming languages.
UncommonOptions
const char *uncommonOptions(void);
void put_UncommonOptions(const char *ansiOrUtf8Str);
This is a catch-all property to be used for uncommon needs. This property defaults to the empty string and should typically remain empty.
Can be set to a list of the following comma separated keywords:
codesign-allow-expired-cert- Don't fail authenticode signature validation because the signing certificate is expired.
Utf8
void put_Utf8(bool newVal);
When set to true, all const char * arguments and return values are interpreted as UTF-8 strings. When set to false, they are interpreted as ANSI strings.
In Chilkat v11.0.0 and later, the default value is true. Before v11.0.0, it was false.
VerboseLogging
void put_VerboseLogging(bool newVal);
If set to true, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is false. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.
Version
Methods
AddSignature
Authenticode signs a DLL or EXE.
Returns true for success, false for failure.
AddSignatureAsync (1)
Creates an asynchronous task to call the AddSignature method with the arguments provided.
Note: Async method event callbacks happen in the background thread. Accessing and updating UI elements existing in the main thread may require special considerations.
Note: The application is responsible for deleting (via the C++ delete operator) the object returned by this method.
Returns NULL on failure
GetSignerCert
This method retrieves the signer certificate after calling VerifySignature. If successful and the signer certificate is fully available, cert will contain the certificate.
Returns true for success, false for failure.
topRemoveSignature
Removes the authenticode signature of a Windows executable or DLL. The path to the executable/DLL is passed in path.
Returns true for success, false for failure.
VerifySignature
Verifies the signature of a Windows executable or DLL. The path to the executable/DLL is passed in path. Information about the signature is returned in sigInfo. Returns true if the signature is verified indicating the EXE or DLL can be trusted. Otherwise returns false.
Returns true for success, false for failure.
Events
To implement an event callback, your application would define and implement a class that inherits from CkBaseProgress. Your application can implement methods to override some or all of the default/empty method implementations of the CkBaseProgress base class.
For example:
CkCodeSign codesign; MyCodeSignProgress callbackObj; codesign.put_EventCallbackObject(&callbackObj);
MyCodeSignProgress example:
#include "CkBaseProgress.h"
class MyCodeSignProgress : public CkBaseProgress {
public:
MyCodeSignProgress();
virtual ~MyCodeSignProgress();
void AbortCheck(bool *abort);
void PercentDone(int pctDone, bool *abort);
void ProgressInfo(const char *name, const char *value);
void TaskCompleted(CkTask &task);
};AbortCheck
Enables a method call to be aborted by triggering the AbortCheck event at intervals defined by the HeartbeatMs property. If HeartbeatMs is set to its default value of 0, no events will occur. For instance, set HeartbeatMs to 200 to trigger 5 AbortCheck events per second.
PercentDone
This provides the percentage completion for any method involving network communications or time-consuming processing, assuming the progress can be measured as a percentage. This event is triggered only when it's possible and logical to express the operation's progress as a percentage. The pctDone argument will range from 1 to 100. For methods that finish quickly, the number of PercentDone callbacks may vary, but the final callback will have pctDone equal to 100. For longer operations, callbacks will not exceed one per percentage point (e.g., 1, 2, 3, ..., 98, 99, 100).
The PercentDone callback also acts as an AbortCheck event. For fast methods where PercentDone fires, an AbortCheck event may not trigger since the PercentDone callback already provides an opportunity to abort. For longer operations, where time between PercentDone callbacks is extended, AbortCheck callbacks enable more responsive operation termination.
To abort the operation, set the abort output argument to true. This will cause the method to terminate and return a failure status or corresponding failure value.
ProgressInfo
This event callback provides tag name/value pairs that detail what occurs during a method call. To discover existing tag names, create code to handle the event, emit the pairs, and review them. Most tag names are self-explanatory.
TaskCompleted
Called from the background thread when an asynchronous task completes.