I understand eval string-to-function is impossible to use on the browsers' application programming interfaces, but there must be another strategy to use third party dependencies without node.js on v8 engine, given Cloudflare does it in-house, unless they disable the exclusive method by necessity or otherwise on their edge servers for Workers. I imagine I could gather the AST of the commonjs module, as I was able to by rollup watch, but what might the actual steps be, by tooling? I mention AMD for it seems to rely on string-to-function (to-which I've notice Mozilla MDN says nothing much about it).
I have been exploring the require.js repositories, and they either use eval or AST
function DEFNODE(type, props, methods, base) {
if (arguments.length < 4) base = AST_Node;
if (!props) props = [];
else props = props.split(/\s+/);
var self_props = props;
if (base && base.PROPS) props = props.concat(base.PROPS);
var code = "return function AST_" + type + "(props){ if (props) { ";
for (var i = props.length; --i >= 0; ) {
code += "this." + props[i] + " = props." + props[i] + ";";
}
var proto = base && new base();
if ((proto && proto.initialize) || (methods && methods.initialize))
code += "this.initialize();";
code += "}}";
//constructor
var cnstor = new Function(code)();
if (proto) {
cnstor.prototype = proto;
cnstor.BASE = base;
}
if (base) base.SUBCLASSES.push(cnstor);
cnstor.prototype.CTOR = cnstor;
cnstor.PROPS = props || null;
cnstor.SELF_PROPS = self_props;
cnstor.SUBCLASSES = [];
if (type) {
cnstor.prototype.TYPE = cnstor.TYPE = type;
}
if (methods)
for (i in methods)
if (HOP(methods, i)) {
if (/^\$/.test(i)) {
cnstor[i.substr(1)] = methods[i];
} else {
cnstor.prototype[i] = methods[i];
}
}
//a function that returns an object with [name]:method
cnstor.DEFMETHOD = function (name, method) {
this.prototype[name] = method;
};
if (typeof exports !== "undefined") exports[`AST_${type}`] = cnstor;
return cnstor;
}
var AST_Token = DEFNODE(
"Token",
"type value line col pos endline endcol endpos nlb comments_before file raw",
{},
null
);
https://codesandbox.io/s/infallible-darwin-8jcl2k?file=/src/mastercard-backbank/uglify/index.js
https://www.youtube.com/watch?v=EF7UW9HxOe4
Is it possible to make a C++ addon just to add a default object for
node.js named exports or am I Y’ing up the wrong X
'.so' shared library for C++ dlopen/LoadLibrary (or #include?)
“I have to say that I'm amazed that there is code out there that loads one native addon from another native addon! Is it done by acquiring and then calling an instance of the require() function, or perhaps by using uv_dlopen() directly?”
N-API: An api for embedding Node in applications
"[there is no ]napi_env[ just yet]."
node-api: allow retrieval of add-on file name - Missing module in Init
Andreas Rossberg - is AST parsing, or initialize node.js abstraction for native c++, enough?
v8::String::NewFromUtf8(isolate, "Index from C++!");
Rising Stack - Node Source
"a macro implicit" parameter - bridge object between
C++ and JavaScript runtimes
extract a function's parameters and set the return value.
#include <nan.h>
int build () {
NAN_METHOD(Index) {
info.GetReturnValue().Set(
Nan::New("Index from C++!").ToLocalChecked()
);
}
}
// Module initialization logic
NAN_MODULE_INIT(Initialize) {
/*Export the `Index` function
(equivalent to `export function Index (...)` in JS)*/
NAN_EXPORT(target, Index);
}
New module "App" Initialize function from NAN_MODULE_INIT (an atomic?-macro)
"__napi_something doesn't exist."
"node-addon-API module for C++ code (N-API's C code's headers)"
NODE_MODULE(App, Initialize);
Sep 17, 2013, 4:42:17 AM to v8-u...#googlegroups.com "This comes up
frequently, but the answer remains the same: scrap the idea. ;)
Neither the V8 parser nor its AST are designed for external
interfacing. In particular (1) V8's AST does not necessarily reflect
JavaScript syntax 1-to-1, (2) we change it all the time, and (3) it
depends on various V8 internals. And since all these points are
important for V8, don't expect the situation to change.
/Andreas"
V8 c++: How to import module via code to script context (5/28/22, edit)
"The export keyword may only be used in a module interface unit.
The keyword is attached to a declaration of an entity, and causes that
declaration (and sometimes the definition) to become visible to module
importers[ - except for] the export keyword in the module-declaration, which is just a re-use of the keyword (and does not actually “export” ...entities)."
SyntheticModule::virtual
ScriptCompiler::CompileModule() - "Corresponds to the ParseModule abstract operation in the ECMAScript specification."
Local<Function> foo_func = ...;//external
Local<Module> module = Module::CreateSyntheticModule(
isolate, name,
{String::NewFromUtf8(isolate, "foo")},
[](Local<Context> context, Local<Module> module) {
module->SetSyntheticModuleExport(
String::NewFromUtf8(isolate, "foo"), foo_func
);
});
Context-Aware addons from node.js' commonjs modules
export module index;
export class Index {
public:
const char* app() {
return "done!";
}
};
import index;
import <iostream>;
int main() {
std::cout << Index().app() << '\n';
}
node-addon-api (new)
native abstractions (old)
"Thanks to the crazy changes in V8 (and some in Node core), keeping native addons compiling happily across versions, particularly 0.10 to 0.12 to 4.0, is a minor nightmare. The goal of this project is to store all logic necessary to develop native Node.js addons without having to inspect NODE_MODULE_VERSION and get yourself into a macro-tangle[ macro = extern atomics?]."
Scope Isolate (v8::Isolate), variable Local (v8::Local)
typed_array_to_native.cc
"require is part of the Asynchronous Module Definition AMD API[, without "string-to-function" eval/new Function()],"
node.js makes objects, for it is written in C++.
"According to the algorithm, before finding
./node_modules/_/index.js, it tried looking for express in the
core Node.js modules. This didn’t exist, so it looked in node_modules,
and found a directory called _. (If there was a
./node_modules/_.js, it would load that directly.) It then
loaded ./node_modules/_/package.json, and looked for an exports
field, but this didn’t exist. It also looked for a main field, but
this didn’t exist either. It then fell back to index.js, which it
found. ...require() looks for node_modules in all of the parent directories of the caller."
But java?
I won't accept this answer until it works, but this looks promising:
https://developer.oracle.com/databases/nashorn-javascript-part1.html
If not to run a jar file or something, in the Worker:
https://github.com/nodyn/jvm-npm
require and build equivalent in maven, first, use "dist/index.js".
Specifically: [ScriptEngineManager][21]
https://stackoverflow.com/a/15787930/11711280
Actually: js.commonjs-require experimental
https://docs.oracle.com/en/graalvm/enterprise/21/docs/reference-manual/js/Modules/
Alternatively/favorably: commonjs builder in C (v8 and node.js)
https://www.reddit.com/r/java/comments/u7elf4/what_are_your_thoughts_on_java_isolates_on_graalvm/
Here I will explore v8/node.js src .h and .cc for this purpose
https://codesandbox.io/s/infallible-darwin-8jcl2k?file=/src/c.cpp
I'm curious why there is near machine-level C operability in Workers if not to use std::ifstream, and/or build-locally, without node.js require.
Related
I've use the below bazel rule to build static libraries with bazel:
def _cc_static_library_impl(ctx):
cc_deps = [dep[CcInfo] for dep in ctx.attr.deps]
libraries = []
for cc_dep in cc_deps:
for link_input in cc_dep.linking_context.linker_inputs.to_list():
for library in link_input.libraries:
libraries += library.pic_objects
args = ["r", ctx.outputs.out.path] + [f.path for f in libraries]
ctx.actions.run(
inputs = libraries,
outputs = [ctx.outputs.out],
executable = "/usr/bin/ar",
arguments = args,
)
return [DefaultInfo()]
cc_static_library = rule(
implementation = _cc_static_library_impl,
attrs = {
"deps": attr.label_list(providers = [CcInfo]),
},
outputs = {"out": "lib%{name}.a"},
)
How can I extract the command to use from the current toolchain instead of using the hardcoded /usr/bin/ar? I've based the rule on what I've found on the internet and I have very limited knowledge about this. This example seems to do something related:
https://github.com/bazelbuild/rules_cc/blob/main/examples/my_c_archive/my_c_archive.bzl
This is the relevant part of my_c_archive:
archiver_path = cc_common.get_tool_for_action(
feature_configuration = feature_configuration,
action_name = CPP_LINK_STATIC_LIBRARY_ACTION_NAME,
)
That gets you the path, and then you need to add cc_toolchain.all_files to your ctx.actions.run call, so it ends up looking like this:
ctx.actions.run(
inputs = depset(
direct = [libraries],
transitive = [
cc_toolchain.all_files,
],
),
outputs = [ctx.outputs.out],
executable = archiver_path,
arguments = args,
)
However, you'll also notice that my_c_archive builds up a command line and environment variables to call the archiver with. A simple toolchain won't have anything to pass in either of those, but a more complex one may not work correctly without adding them (for example, passing -m32 or setting PATH).
Part of the starlark implementation of cc_import in _create_archive_action in cc_import.bzl is a good place to start for handling all the intricacies. It creates an action to produce a static library from a set of object files, with flexibility to work with many toolchains.
I have downloaded the latest version of Lua and included the source in to my project in c++builder from Embarcadero. All went rather well. Compiles perfectly.
But when I run my script, that's when it stops working correctly.
This script is ok
-- Script
Tp = tonumber( Temp )
Sp = tonumber( Setpoint )
Clr = "0xFF00FF00"
Db = 0.5
Hi = (Sp+Db)+1
Lo = (Sp-Db)-1
f = Hi
--
This script fails
-- Script
Tp = tonumber( Temp )
Sp = tonumber( Setpoint )
Clr = "0xFF00FF00"
Db = 0.5
Hi = (Sp+Db)+1
Lo = (Sp-Db)-1
f = math.floor( Hi )
--
It also fails if I try to use string.format, so it looks like the libs have not loaded correctly.
I use luaL_openlibs() to load the libraries.
I have come to the conclusion that there must be a compiler directive that I need to use. But I can't find anything that makes any difference.
If anyone has any info on building the source into their own application, I would love to know.
The main reason I have done it this way is for speed.
My Application is a data server that runs scripts against incoming data, and I expect to have several hundred data connections, both in and out.
The Answer is to call
lua_openlibs( state );
and not this code
static const luaL_reg lualibs[] =
{
{"base", luaopen_base},
{"table", luaopen_table},
{"io", luaopen_io},
{"string", luaopen_string},
{"math", luaopen_math},
{"debug", luaopen_debug},
{"loadlib", luaopen_loadlib},
/* add your libraries here */
{NULL, NULL}
};
static void openstdlibs( lua_State *l )
{
const luaL_reg *lib = lualibs;
for (; lib->func; lib++)
{
lib->func(l); /* open library */
lua_settop(l, 0); /* discard any results */
}
}
I can only assume that there is some path information missing that openlibs has.
Sorry about the formatting, couldn't get it to look right
EDIT:
I have heavily edited this question after making some significant new discoveries and the question not having any answers yet.
Historically/AFAIK, keeping your Mac awake while in closed-display mode and not meeting Apple's requirements, has only been possible with a kernel extension (kext), or a command run as root. Recently however, I have discovered that there must be another way. I could really use some help figuring out how to get this working for use in a (100% free, no IAP) sandboxed Mac App Store (MAS) compatible app.
I have confirmed that some other MAS apps are able to do this, and it looks like they might be writing YES to a key named clamshellSleepDisabled. Or perhaps there's some other trickery involved that causes the key value to be set to YES? I found the function in IOPMrootDomain.cpp:
void IOPMrootDomain::setDisableClamShellSleep( bool val )
{
if (gIOPMWorkLoop->inGate() == false) {
gIOPMWorkLoop->runAction(
OSMemberFunctionCast(IOWorkLoop::Action, this, &IOPMrootDomain::setDisableClamShellSleep),
(OSObject *)this,
(void *)val);
return;
}
else {
DLOG("setDisableClamShellSleep(%x)\n", (uint32_t) val);
if ( clamshellSleepDisabled != val )
{
clamshellSleepDisabled = val;
// If clamshellSleepDisabled is reset to 0, reevaluate if
// system need to go to sleep due to clamshell state
if ( !clamshellSleepDisabled && clamshellClosed)
handlePowerNotification(kLocalEvalClamshellCommand);
}
}
}
I'd like to give this a try and see if that's all it takes, but I don't really have any idea about how to go about calling this function. It's certainly not a part of the IOPMrootDomain documentation, and I can't seem to find any helpful example code for functions that are in the IOPMrootDomain documentation, such as setAggressiveness or setPMAssertionLevel. Here's some evidence of what's going on behind the scenes according to Console:
I've had a tiny bit of experience working with IOMProotDomain via adapting some of ControlPlane's source for another project, but I'm at a loss for how to get started on this. Any help would be greatly appreciated. Thank you!
EDIT:
With #pmdj's contribution/answer, this has been solved!
Full example project:
https://github.com/x74353/CDMManager
This ended up being surprisingly simple/straightforward:
1. Import header:
#import <IOKit/pwr_mgt/IOPMLib.h>
2. Add this function in your implementation file:
IOReturn RootDomain_SetDisableClamShellSleep (io_connect_t root_domain_connection, bool disable)
{
uint32_t num_outputs = 0;
uint32_t input_count = 1;
uint64_t input[input_count];
input[0] = (uint64_t) { disable ? 1 : 0 };
return IOConnectCallScalarMethod(root_domain_connection, kPMSetClamshellSleepState, input, input_count, NULL, &num_outputs);
}
3. Use the following to call the above function from somewhere else in your implementation:
io_connect_t connection = IO_OBJECT_NULL;
io_service_t pmRootDomain = IOServiceGetMatchingService(kIOMasterPortDefault, IOServiceMatching("IOPMrootDomain"));
IOServiceOpen (pmRootDomain, current_task(), 0, &connection);
// 'enable' is a bool you should assign a YES or NO value to prior to making this call
RootDomain_SetDisableClamShellSleep(connection, enable);
IOServiceClose(connection);
I have no personal experience with the PM root domain, but I do have extensive experience with IOKit, so here goes:
You want IOPMrootDomain::setDisableClamShellSleep() to be called.
A code search for sites calling setDisableClamShellSleep() quickly reveals a location in RootDomainUserClient::externalMethod(), in the file iokit/Kernel/RootDomainUserClient.cpp. This is certainly promising, as externalMethod() is what gets called in response to user space programs calling the IOConnectCall*() family of functions.
Let's dig in:
IOReturn RootDomainUserClient::externalMethod(
uint32_t selector,
IOExternalMethodArguments * arguments,
IOExternalMethodDispatch * dispatch __unused,
OSObject * target __unused,
void * reference __unused )
{
IOReturn ret = kIOReturnBadArgument;
switch (selector)
{
…
…
…
case kPMSetClamshellSleepState:
fOwner->setDisableClamShellSleep(arguments->scalarInput[0] ? true : false);
ret = kIOReturnSuccess;
break;
…
So, to invoke setDisableClamShellSleep() you'll need to:
Open a user client connection to IOPMrootDomain. This looks straightforward, because:
Upon inspection, IOPMrootDomain has an IOUserClientClass property of RootDomainUserClient, so IOServiceOpen() from user space will by default create an RootDomainUserClient instance.
IOPMrootDomain does not override the newUserClient member function, so there are no access controls there.
RootDomainUserClient::initWithTask() does not appear to place any restrictions (e.g. root user, code signing) on the connecting user space process.
So it should simply be a case of running this code in your program:
io_connect_t connection = IO_OBJECT_NULL;
IOReturn ret = IOServiceOpen(
root_domain_service,
current_task(),
0, // user client type, ignored
&connection);
Call the appropriate external method.
From the code excerpt earlier on, we know that the selector must be kPMSetClamshellSleepState.
arguments->scalarInput[0] being zero will call setDisableClamShellSleep(false), while a nonzero value will call setDisableClamShellSleep(true).
This amounts to:
IOReturn RootDomain_SetDisableClamShellSleep(io_connect_t root_domain_connection, bool disable)
{
uint32_t num_outputs = 0;
uint64_t inputs[] = { disable ? 1 : 0 };
return IOConnectCallScalarMethod(
root_domain_connection, kPMSetClamshellSleepState,
&inputs, 1, // 1 = length of array 'inputs'
NULL, &num_outputs);
}
When you're done with your io_connect_t handle, don't forget to IOServiceClose() it.
This should let you toggle clamshell sleep on or off. Note that there does not appear to be any provision for automatically resetting the value to its original state, so if your program crashes or exits without cleaning up after itself, whatever state was last set will remain. This might not be great from a user experience perspective, so perhaps try to defend against it somehow, for example in a crash handler.
Background
It is possible to perform a software-controlled disconnection of the power adapter of a Mac laptop by creating an DisableInflow power management assertion.
Code from this answer to an SO question can be used to create said assertion. The following is a working example that creates this assertion until the process is killed:
#include <IOKit/pwr_mgt/IOPMLib.h>
#include <unistd.h>
int main()
{
IOPMAssertionID neverSleep = 0;
IOPMAssertionCreateWithName(kIOPMAssertionTypeDisableInflow,
kIOPMAssertionLevelOn,
CFSTR("disable inflow"),
&neverSleep);
while (1)
{
sleep(1);
}
}
This runs successfully and the power adapter is disconnected by software while the process is running.
What's interesting, though, is that I was able to run this code as a regular user, without root privileges, which wasn't supposed to happen. For instance, note the comment in this file from Apple's open source repositories:
// Disables AC Power Inflow (requires root to initiate)
#define kIOPMAssertionTypeDisableInflow CFSTR("DisableInflow")
#define kIOPMInflowDisableAssertion kIOPMAssertionTypeDisableInflow
I found some code which apparently performs the actual communication with the charger; it can be found here. The following functions, from this file, appears to be of particular interest:
IOReturn
AppleSmartBatteryManagerUserClient::externalMethod(
uint32_t selector,
IOExternalMethodArguments * arguments,
IOExternalMethodDispatch * dispatch __unused,
OSObject * target __unused,
void * reference __unused )
{
if (selector >= kNumBattMethods) {
// Invalid selector
return kIOReturnBadArgument;
}
switch (selector)
{
case kSBInflowDisable:
// 1 scalar in, 1 scalar out
return this->secureInflowDisable((int)arguments->scalarInput[0],
(int *)&arguments->scalarOutput[0]);
break;
// ...
}
// ...
}
IOReturn AppleSmartBatteryManagerUserClient::secureInflowDisable(
int level,
int *return_code)
{
int admin_priv = 0;
IOReturn ret = kIOReturnNotPrivileged;
if( !(level == 0 || level == 1))
{
*return_code = kIOReturnBadArgument;
return kIOReturnSuccess;
}
ret = clientHasPrivilege(fOwningTask, kIOClientPrivilegeAdministrator);
admin_priv = (kIOReturnSuccess == ret);
if(admin_priv && fOwner) {
*return_code = fOwner->disableInflow( level );
return kIOReturnSuccess;
} else {
*return_code = kIOReturnNotPrivileged;
return kIOReturnSuccess;
}
}
Note how, in secureInflowDisable(), root privileges are checked for prior to running the code. Note also this initialization code in the same file, again requiring root privileges, as explicitly pointed out in the comments:
bool AppleSmartBatteryManagerUserClient::initWithTask(task_t owningTask,
void *security_id, UInt32 type, OSDictionary * properties)
{
uint32_t _pid;
/* 1. Only root processes may open a SmartBatteryManagerUserClient.
* 2. Attempts to create exclusive UserClients will fail if an
* exclusive user client is attached.
* 3. Non-exclusive clients will not be able to perform transactions
* while an exclusive client is attached.
* 3a. Only battery firmware updaters should bother being exclusive.
*/
if ( kIOReturnSuccess !=
clientHasPrivilege(owningTask, kIOClientPrivilegeAdministrator))
{
return false;
}
// ...
}
Starting from the code from the same SO question above (the question itself, not the answer), for the sendSmartBatteryCommand() function, I wrote some code that calls the function passing kSBInflowDisable as the selector (the variable which in the code).
Unlike the code using assertions, this one only works as root. If running as a regular user, IOServiceOpen() returns, weirdly enough, kIOReturnBadArgument (not kIOReturnNotPrivileged, as I would have expected). Perhaps this has to do with the initWithTask() method above.
The question
I need to perform a call with a different selector to this same Smart Battery Manager kext. Even so, I can't even get to the IOConnectCallMethod() since IOServiceOpen() fails, presumably because the initWithTask() method prevents any non-root users from opening the service.
The question, therefore, is this: how is IOPMAssertionCreateWithName() capable of creating a DisableInflow assertion without root privileges?
The only possibility I can think of is if there's a root-owned process to which requests are forwarded, and which performs the actual work of calling IOServiceOpen() and later IOConnectCallMethod() as root.
However, I'm hoping there's a different way of calling the Smart Battery Manager kext which doesn't require root (one that doesn't involve the IOServiceOpen() call.) Using IOPMAssertionCreateWithName() itself is not possible in my application, since I need to call a different selector within that kext, not the one that disables inflow.
It's also possible this is in fact a security vulnerability, which Apple will now fix in a future release as soon as it is alerted to this question. That would be too bad, but understandable.
Although running as root is a possibility in macOS, it's obviously desirable to avoid privilege elevation unless absolutely necessary. Also, in the future I'd like to run the same code under iOS, where it's impossible to run anything as root, in my understanding (note this is an app I'm developing for my own personal use; I understand linking to IOKit wipes out any chance of getting the app published in the App Store).
The MSI stores the installation directory for the future uninstall tasks.
Using the INSTALLPROPERTY_INSTALLLOCATION property (that is "InstallLocation") works only the installer has set the ARPINSTALLLOCATION property during the installation. But this property is optional and almost nobody uses it.
How could I retrieve the installation directory?
Use a registry key to keep track of your install directory, that way you can reference it when upgrading and removing the product.
Using WIX I would create a Component that creates the key, right after the Directy tag of the install directory, declaration
I'd use MsiGetComponentPath() - you need the ProductId and a ComponentId, but you get the full path to the installed file - just pick one that goes to the location of your installation directory. If you want to get the value of a directory for any random MSI, I do not believe there is an API that lets you do that.
I would try to use Installer.OpenProduct(productcode). This opens a session, on which you can then ask for Property("TARGETDIR").
Try this:
var sPath = this.Context.Parameters["assemblypath"].ToString();
As stated elsewhere in the thread, I normally write a registry key in HKLM to be able to easily retrieve the installation directory for subsequent installs.
In cases when I am dealing with a setup that hasn't done this, I use the built-in Windows Installer feature AppSearch: http://msdn.microsoft.com/en-us/library/aa367578(v=vs.85).aspx to locate the directory of the previous install by specifying a file signature to look for.
A file signature can consist of the file name, file size and file version and other file properties. Each signature can be specified with a certain degree of flexibility so you can find different versions of the the same file for instance by specifying a version range to look for. Please check the SDK documentation: http://msdn.microsoft.com/en-us/library/aa371853(v=vs.85).aspx
In most cases I use the main application EXE and set a tight signature by looking for a narrow version range of the file with the correct version and date.
Recently I needed to automate Natural Docs install through Ketarin. I could assume it was installed into default path (%ProgramFiles(x86)%\Natural Docs), but I decided to take a safe approach. Sadly, even if the installer created a key on HKLM\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall, none of it's value lead me to find the install dir.
The Stein answer suggests AppSearch MSI function, and it looks interesting, but sadly Natural Docs MSI installer doesn't provide a Signature table to his approach works.
So I decided to search through registry to find any reference to Natural Docs install dir, and I find one into HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components key.
I developed a Reg Class in C# for Ketarin that allows recursion. So I look all values through HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components and if the Main application executable (NaturalDocs.exe) is found into one of subkeys values, it's extracted (C:\Program Files (x86)\Natural Docs\NaturalDocs.exe becomes C:\Program Files (x86)\Natural Docs) and it's added to the system environment variable %PATH% (So I can call "NaturalDocs.exe" directly instead of using full path).
The Registry "class" (functions, actually) can be found on GitHub (RegClassCS).
System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo("NaturalDocs.exe", "-h");
startInfo.UseShellExecute = false;
startInfo.CreateNoWindow = true;
var process = System.Diagnostics.Process.Start (startInfo);
process.WaitForExit();
if (process.ExitCode != 0)
{
string Components = #"SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components";
bool breakFlag = false;
string hKeyName = "HKEY_LOCAL_MACHINE";
if (Environment.Is64BitOperatingSystem)
{
hKeyName = "HKEY_LOCAL_MACHINE64";
}
string[] subKeyNames = RegGetSubKeyNames(hKeyName, Components);
// Array.Reverse(subKeyNames);
for(int i = 0; i <= subKeyNames.Length - 1; i++)
{
string[] valueNames = RegGetValueNames(hKeyName, subKeyNames[i]);
foreach(string valueName in valueNames)
{
string valueKind = RegGetValueKind(hKeyName, subKeyNames[i], valueName);
switch(valueKind)
{
case "REG_SZ":
// case "REG_EXPAND_SZ":
// case "REG_BINARY":
string valueSZ = (RegGetValue(hKeyName, subKeyNames[i], valueName) as String);
if (valueSZ.IndexOf("NaturalDocs.exe") != -1)
{
startInfo = new System.Diagnostics.ProcessStartInfo("setx", "path \"%path%;" + System.IO.Path.GetDirectoryName(valueSZ) + "\" /M");
startInfo.Verb = "runas";
process = System.Diagnostics.Process.Start (startInfo);
process.WaitForExit();
if (process.ExitCode != 0)
{
Abort("SETX failed.");
}
breakFlag = true;
}
break;
/*
case "REG_MULTI_SZ":
string[] valueMultiSZ = (string[])RegGetValue("HKEY_CURRENT_USER", subKeyNames[i], valueKind);
for(int k = 0; k <= valueMultiSZ.Length - 1; k++)
{
Ketarin.Forms.LogDialog.Log("valueMultiSZ[" + k + "] = " + valueMultiSZ[k]);
}
break;
*/
default:
break;
}
if (breakFlag)
{
break;
}
}
if (breakFlag)
{
break;
}
}
}
Even if you don't use Ketarin, you can easily paste the function and build it through Visual Studio or CSC.
A more general approach can be taken using RegClassVBS that allow registry key recursion and doesn't depend on .NET Framework platform or build processes.
Please note that the process of enumerating the Components Key can be CPU intense. The example above has a Length parameter, that you can use to show some progress to the user (maybe something like "i from (subKeysName.Length - 1) keys remaining" - be creative). A similar approach can be taken in RegClassVBS.
Both classes (RegClassCS and RegClassVBS) have documentation and examples that can guide you, and you can use it in any software and contribute to the development of them making a commit on the git repo, and (of course) opening a issue on it's github pages if you find any problem that you couldn't resolve yourself so we can try to reproduce the issue to figure out what we can do about it. =)