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Library for Arduino to debug projects over WiFi, with web app or telnet, with print commands like Serial Monitor

License: MIT License

C++ 88.09% C 11.91%
arduino arduino-library debug debugger esp32-arduino esp8266-arduino telnet web-app web-sockets wifi

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remotedebug's Issues

Update to Usage section

It may be useful to other readers if you added this to the "Usage" section of the readme"

RemoteDebug Debug;

The "basic" example was not very basic to me, so I followed the Usage section thinking that would be bare minimum, but instead I got errors "Debug not declared in this scope".

I like the implementation. Simple to use.
I want to give a big thumbs up to the suggestion in #18. That would be a big help too.

Question: Can you only get debug message in Loop()?

I would like to be able to get some debug message in the void setup() funtion and even before. Is there any way to do that? I looks like you have to wait for Debug.handle() to run in the void loop() function before any Debug.printf() lines will get executed.

So happy to at least get some Loop() debug with OTA updates.

Break execution until connected

Would it be possible to add a function which will pause the execution of all code until someone connects to the debugger?

It would be useful in situations where, for example, you have some code that is executed during setup, before you have the chance to connect.

Provide license information with library

This is a very nice library. I cannot find any license information supplied in the repository. Can you please include the license that you are releasing this code under? Thanks.

Ability to use flash strings in debug messages

Is your feature request related to a problem? Please describe.

All messages processed by debug are stored in RAM memory.
So in effect, observing/debugging application causes huge difference in RAM utilisation.

Describe the solution you'd like

Something like:
debugI(F("some message stored in flash"));

Besides: excellent library.

Guidance using across multiple cpp files

Sorry for opening an issue for a question - not sure how else to ask.
I have a project where the functionality is split across several cpp files (and an .ino file shell that calls functions from them). They are full of serial debug statements which I would like to replace with your library. (I imagine not a unique scenario)

Could you provide some basic guidance for this scenario and where to do the includes and where to declare the object - I generally work with single file ino files so am not having much luck - all my attempts result in compiler errors. I believe it requires some combination of includes and extern declaration but can't get it working.

Async websockets

Would it be possible to implement the asynchronous websockets in this library?

ESP watchdog reset when telnet client connected to RemoteDebug

Describe the bug
When a client connects to the remote debug telnet port after about 20 seconds the esp becomes unresponsive and the watchdog kicks in...

To Reproduce
Steps to reproduce the behavior:

Install Arduino
Upload a sketch containing remote debug ( github.com/jeroenst/espMQTT )
Connect to the telnet port
Wait for esp to hang and watchdog to kick in

Expected behavior
Esp should not hang

Screenshots

ets Jan 8 2013,rst cause:4, boot mode:(3,6)

wdt reset
load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
v8b899c12
~ld
(setup)

Arduino Information:

OS: Linux Mint 19.1 Tessa
IDE Arduino
IDE Version 1.8.9
Board ESP8266
Additional context
Add any other context about the problem here.

Changing MAX_TIME_INACTIVE

The session is automatically closed after 10 minutes and this a problem when debugging.

It should be nice to be able to redefine MAX_TIME_INACTIVE without editing RemoteDebugCfg.h

// Maximum time for inactivity (em milliseconds)
// Default: 10 minutes
// Comment it if you not want this
// Can be by project, just define it before include this file
#ifndef MAX_TIME_INACTIVE // To be added
#define MAX_TIME_INACTIVE 600000
#endif // to be added

Interface consistency with SerialDebug

This looks very nifty!

What I find inconvenient, however, is that the library uses a different interface than your own SerialDebug library. There we have DebugV(), printlnD(), debugHandle() etc., here we have Debug.printf(), rprintlnD(), Debug.handle() etc.. Because of this inconsistency neither library is a drop-in replacement for the other and you have to keep modifying your code if you want to change the debugging target.

Personally I think I prefer the way it is done here (through a Debug object and macros that refer to it). But I think either way would be fine, as long as they're consistent.

debug messages repeated and ANSI escape showing

I'm seeing what looks like a buffer overflow when sending debug messages, that displays the ANSI escape message )see image)

I don't see them ever when RemoteDebug sends 'Project commands", eg u command in image,
but as you can see when debugI for example sends data from my program, sometimes the previous response is repeated with part of the ANSI escape sequence missing and hence appears as text.

image

Compile errors with wemos d1 mini

Compiling for Wemos D1 Mini using Arduino IDE. I receive the following compiler errors.

/Users/zach/Documents/Arduino/libraries/RemoteDebug/RemoteDebug.cpp: In member function 'void RemoteDebug::begin(String, uint16_t, uint8_t)':
/Users/zach/Documents/Arduino/libraries/RemoteDebug/RemoteDebug.cpp:104:25: error: no matching function for call to 'WiFiServer::begin(uint16_t&)'
TelnetServer.begin(port);
^
/Users/zach/Documents/Arduino/libraries/RemoteDebug/RemoteDebug.cpp:104:25: note: candidate is:
In file included from /Users/zach/Library/Arduino15/packages/esp8266/hardware/esp8266/2.3.0/libraries/ESP8266WiFi/src/ESP8266WiFi.h:40:0,
from /Users/zach/Documents/Arduino/libraries/RemoteDebug/RemoteDebug.cpp:65:
/Users/zach/Library/Arduino15/packages/esp8266/hardware/esp8266/2.3.0/libraries/ESP8266WiFi/src/WiFiServer.h:53:8: note: virtual void WiFiServer::begin()
void begin();
^
/Users/zach/Library/Arduino15/packages/esp8266/hardware/esp8266/2.3.0/libraries/ESP8266WiFi/src/WiFiServer.h:53:8: note: candidate expects 0 arguments, 1 provided
exit status 1
Error compiling for board WeMos D1 R2 & mini.

Free heap decreases after connect/disconnect

I did a small test with a sample sketch:
connected to telnet: OK
quit connection: OK
connected again: OK, small decrease in free heap
quit connection OK
tried to connect again but "connection refused"

I could post my sketch if needed.

How to use in included files

C++ newb here. Could you please suggest or show small example of how to use logger if code consists of 3 files:

  • main.cpp
  • lib.cpp
  • lib.h

If i import RemoteDebug in lib.cpp, how do i use it later in main.cpp ? In my case there are way more files that needs access to that logger, but because debugV or other methods requires Debug variable i'm not sure how to use it.

set debug level to OFF again with "o" ?

you have letters for the specific debug-level.
but is there also an "o" or null/0-Zero to set the debug level to "off" again?

or back to the "default" debug-level? what is this?

would be fantastic ... 😄

thanks, very helpful tool!

redebug

show Debug Level

// Show debug level
void RemoteDebug::showDebugLevel(boolean show) {
_showProfiler = show;
}

--> _showDebugLevel

no display using debugA

First, thanks for a wonderful utility

I found debugA doesn't display

changed line 247 of RemoteDebug.h from

#define debugA(fmt, ...) rdebugVln(fmt, ##__VA_ARGS__)

to

#define debugA(fmt, ...) rdebugAln(fmt, ##__VA_ARGS__)

and seems to work

Some "Errors" detected

Hello,
I have been using your lib for a couple of days and I like it very much.
I have encountered the following (little) problems:
-After resetting the ESP loglevel ist set to 'off', but Errors a still logged.

  • There is a command to switch off logging, but that does not work.
  • The command "off" should be mentioned in the Command-List (it is missing)
  • If you terminate the telnet connection and start a new one, log level is still remembered, I dont know if this is a bug or a feature. IMHO it should be turned off by default an after terminating telnet session.
  • Connecting from two clients at the same time time does not work. Sometimes it blocks the esp-connection.
    Is it possible to connect with more than one client at the same time?

Acitive and deactive RemoteDebug by code

Is it possible active and deactive RemoveDebug by code?
On my project with ESP8266 there is a html page (by webserver) to set some option.
I'd like add a option to active/deactive RemoteDebug, so I can use it when I need without compile my project.

Is it possible? How?

Is possibile change activection time by code without chance library code (default 5 minutes)?

Websocket interface not displaying correctly

Hi,

Ran into an issue where the string "27" is not been displayed correctly on the websocket interface. The serial port and telnet interfaces do not have this problem.

I'm using release 3.05 using PlatformIO, and the remote debug app from here: http://joaolopesf.net/remotedebugapp/

The following test code should reproduce the issue
` //cut down version of the original problem I observerd
double tmp = 0.000043;
tmp *= 6372795.0;
Debug.printf("5, %f\n", tmp);
rdebugE("6, %f\n", tmp);

//Other examples that don't display correctly on the websocket interface
Debug.println("274.030185");
Debug.println(274.030185);
Debug.println(274);`

And got the following on the websocket interface

(E) 5, 4.030185
(E) (distanceBetween) 6, 4.030185
(E) 4.030185
(E) 4.03
(E) 4

And this on the serial port and telnet interface

(E) 5, 274.030185
(E) (distanceBetween) 6, 274.030185
(E) 274.030185
(E) 274.03
(E) 274

Maybe 27 is being interpreted as an escape character or the like.

Can't compile sample for ESP32

Can't compile sample for ESP32, will give the following error:
C:\Users\Evert\Documents\Arduino\libraries\ESP8266-RemoteDebug-Telnet-master\Samples\RemoteDebug_Basic\RemoteDebug_Basic.ino:23:71: fatal error: ESP8266WiFi.h: No such file or directory

Don't get it wifi is working fine with mqtt and webserver.

Show debug level doesn't show debug level

See this piece of command line print I extracted. I "highlighted" some weird behaviour with two asterisk characters around the value.

> * Debug: Command recevied: l
> * Show debug level: Off
$ v
> * Debug: Command recevied: v
> * Debug level setted to Verbose
$ l
> * Debug: Command recevied: l
> * Show debug level: **On** <- Okay, it's on but I expected it show v or verbose
$ d
> * Debug: Command recevied: d
> * Debug level setted to Debug
$ l
> * Debug: Command recevied: l
> * Show debug level: **Off** <- How can it be off if I just turned it to debug?
$ d
> * Debug: Command recevied: d
> * Debug level setted to Debug
$ l
> * Debug: Command recevied: l
> * Show debug level: **On** <- I redo setting it to debug and now it it's "on"?

It looks like the value for show debug level get's toggled, but also isn't showing the correct debug status.

namespace breaks macros?

Describe the bug
When inside a namespace, I can't use the debugI, debugV ... shorthands.

Code Example

This prints out the same thing, once via tha long form and once with the debugI macro.

namespace Example {
	void test(const char * prefix) {
		#ifndef DEBUG_DISABLED
		if (Debug.isActive(Debug.INFO)) {
			Debug.printf(prefix, "hi");
		}
		#endif
		debugI(prefix, "hi");
	}
};

Now call Example::testWorks("this says %s");.

Expected behavior
Both ways of printing a debug line should work.

Current behaviour

Here's the compiler output:

some-file: In function 'void Example::test(const char*)':
some-file:29:10: error: expected ')' before 'prefix'
   debugI(prefix, "hi");
          ^

src/RemoteDebug.h:146:84: note: in definition of macro 'rdebugI'
   #define rdebugI(fmt, ...) if (Debug.isActive(Debug.INFO))   Debug.printf("(%s) " fmt, __func__, ##__VA_ARGS__)
                                                                                    ^

src/RemoteDebug.h:195:26: note: in expansion of macro 'rdebugIln'
 #define debugI(fmt, ...) rdebugIln(fmt, ##__VA_ARGS__)
                          ^

some-file:29:3: note: in expansion of macro 'debugI'
   debugI(prefix, "hi");
   ^

Arduino Information:

  • OS: Windows
  • IDE: Arduino IDE
  • IDE Version: 1.8.9
  • Board: ESP8266

Serial output not working

When using this code:
Debug.setSerialEnabled(true);
Debug.begin(esp_hostname);
Debug.setResetCmdEnabled(true);
Debug.setCallBackProjectCmds(&processCmdRemoteDebug);
DEBUG("\n");
DEBUG("ESP8266 started...\n");
Serial.println("\n\nHello\n");
Debug.printf("Hello2\n");

The ESP8266 started (and everyting with the debug macro after this code) is not printed when using the DEBUG macro.
The Hello and Hello2 are printed.

What's wrong?

Serial output is affected by telnet debug level

Describe the bug
By default serial only outputs the initial level (debug). When the debug level is changed through telnet the serial level is also changed.

To Reproduce
Steps to reproduce the behavior:

  1. Upload a project with remote debug
  2. Open serial console
  3. Login via telnet and change debug level and see how the output on the serial console is affected

Expected behavior
The serial console should not be affected by the telnet debug level. It should output all levels by default and it should be possible to change the level for serial logging it in code.

Screenshots
If applicable, add screenshots to help explain your problem.

Arduino Information:

  • OS: Linux Mint 19.2
  • IDE Arduino IDE
  • IDE 1.8.10
  • Board ESP8266

Additional context
None.

ESP32

Hello,
unfortunately the library does not run with the ESP32. Will there be any adjustments?
Boris

device doesn't reboot after reset

While connected through telnet I can rest the device. It is not rebooting however.

Serial output shows a WDT reset (which is the last message and then nothing...)

Short way debugging

Hey, short way debugging without any paramter doenst work. The docu says rdebugV("text") but this is wrong...

Remote Debug für Arduino Mega/Uno/nao

Hello,
I am using your Remote Debug on several ESPxx Projects.
But I also have some projects with Arduino Mega and Ethernet Shield.
Would it not be possible to use it also with the Arduino?
Boris

if/else doesn't work (macro problem?)

Describe the bug

this code can never output "x=0"

if (x == 1) debugD("x=1");
else        debugD("x=0");

but this code works

if (x == 1) {debugD("x=1");}
else        {debugD("x=0");}

To Reproduce
Run code snippets above.

Debug.ANY not implemented

In RemoteDebug_Advanced.ino there is references to Debug.ANY, however, this doesn't exist in RemoteDebug.h.

Websocket client

Hello,

we are using RemoteDebug in our access control system for 3D printers and I would like to ask if websocket client can be also implemented .

As we are still developing our FW and we have no problem with RemoteDebug, we could use some remote logging to our server in local network, which can be done by websocket client. Sometimes I need look at log for information what happened and telnet and web app is good but sometimes connection break and I lost log which is very valuable.

I tried implement websocket client at our server, but this is not good solution for us as we do not use static IP addresses at our printers, this is also for mobility of printer (different places, different networks) so this would be very good solution for us and I believe for some other people as well.

If you can at least point it out what need to be changed to implement this, so we can look at it at try that, but for now I´m bit lost.

Thanks

No debug messages displayed when using esp8266 boards package 2.4.2

I just upgraded my @esp8266 core package to 2.4.2 and found that debug messages of any level no longer display to telnet.

The introductory help message displays and responses to input commands still display too but no messages from my sketches are displayed. This affects the example sketches included in the RemoteDebug library too. For example, the code:

      DEBUG_V("* This is a message of debug level VERBOSE\n");
      DEBUG_D("* This is a message of debug level DEBUG\n");
      DEBUG_I("* This is a message of debug level INFO\n");
      DEBUG_W("* This is a message of debug level WARNING\n");
      DEBUG_E("* This is a message of debug level ERROR\n");

will not display to telnet. I tested this by editing the example code with my access point ssid and password only, no other changes and doing a compile on first the 2.4.1 version of esp8266 core then with the 2.4.2 core. While both versions compile with no errors at all, debug messages are displayed with version 2.4.1 but not with 2.4.2.

Feature request: password

Although it can be sniffed by wireshark, a password before entering the debug telnet connection would be nice to prevent unwanted users to open the debug console. The chance that it will be sniffed is pretty low on home lan environments.

Including WebSockets files breaks projects using the library

If you try to build a project that uses the WebSockets library, the files in the RemoteDebug project cause linking errors (multiple definitions of class methods).

I'm writing a library that is using the RemoteDebug library. My library is using WebSockets natively. When building, I get a lot of these linker errors:

.pioenvs/d1_mini/libdf9/libWebSockets_ID549.a(WebSockets.cpp.o): In function `WebSockets::write(WSclient_t*, unsigned char*, unsigned int)':
WebSockets.cpp:(.text._ZN10WebSockets5writeEP10WSclient_tPhj+0x10): multiple definition of `WebSockets::write(WSclient_t*, unsigned char*, unsigned int)'
.pioenvs/d1_mini/lib5ee/libRemoteDebug_ID1266.a(WebSockets.cpp.o):WebSockets.cpp:(.text._ZN10WebSockets5writeEP10WSclient_tPhj+0x10): first defined here
.pioenvs/d1_mini/libdf9/libWebSockets_ID549.a(WebSockets.cpp.o): In function `WebSockets::sendFrame(WSclient_t*, WSopcode_t, unsigned char*, unsigned int, bool, bool)':
WebSockets.cpp:(.text._ZN10WebSockets9sendFrameEP10WSclient_t10WSopcode_tPhjbb+0x24): multiple definition of `WebSockets::sendFrame(WSclient_t*, WSopcode_t, unsigned char*, unsigned int, bool, bool)'
.pioenvs/d1_mini/lib5ee/libRemoteDebug_ID1266.a(WebSockets.cpp.o):WebSockets.cpp:(.text._ZN10WebSockets9sendFrameEP10WSclient_t10WSopcode_tPhjbb+0x24): first defined here
.pioenvs/d1_mini/libdf9/libWebSockets_ID549.a(WebSockets.cpp.o): In function `WebSockets::clientDisconnect(WSclient_t*, unsigned short, char*, unsigned int)':
WebSockets.cpp:(.text._ZN10WebSockets16clientDisconnectEP10WSclient_ttPcj+0x4): multiple definition of `WebSockets::clientDisconnect(WSclient_t*, unsigned short, char*, unsigned int)'
.pioenvs/d1_mini/lib5ee/libRemoteDebug_ID1266.a(WebSockets.cpp.o):WebSockets.cpp:(.text._ZN10WebSockets16clientDisconnectEP10WSclient_ttPcj+0x4): first defined here
.pioenvs/d1_mini/libdf9/libWebSockets_ID549.a(WebSockets.cpp.o): In function `WebSockets::handleWebsocketPayloadCb(WSclient_t*, bool, unsigned char*)':
WebSockets.cpp:(.text._ZN10WebSockets24handleWebsocketPayloadCbEP10WSclient_tbPh+0x18): multiple definition of `WebSockets::handleWebsocketPayloadCb(WSclient_t*, bool, unsigned char*)'
...

Please consider either pulling the WebSockets in as an external dependency (probably works only in PlatformIO) or renaming the WebSockets classes e.g.: WebSockets -> RDWebSockets etc.

Redirect Serial output

I like your idea of remote debugging over telnet. But I see one problem, which is that most of existing libraries use Serial class to trace things. And this traces will not be seen in telnet connection.

Wouln't be possible to redirect Serial output to telnet? I mean implementing something to override default logic. In this way existing libraries traces could be debugged over telnet

WiFiClientSecure.h not found on platform espressif32 (platformio)

Describe the bug
WiFiClientSecure.h not found error when using espressif32 platform with PlatformIO

To Reproduce
Just use remotedebug in a project on PlatformIO with espressif32

Expected behavior
The code should work also under these conditions

Additional context
I used the WEBSOCKET_DISABLED switch but as PlatformIO is compiling the /utility directory I also had to add an entry to library.json:

"build": {
"srcFilter": "+<*> -"
},

Now my project works again but of course this is not ideal... Better to fix the code for espressif32 use.

(Minor Issue) Serial output always starts with [0m

Describe the bug
When serial output is enabled each line is started with [0m (shown on arduino serial monitor)

To Reproduce
Steps to reproduce the behavior:

  1. Install Arduino
  2. Upload a sketch containing remote debug with serial output enabled
  3. Look in the serial monitor

Expected behavior
A line on the serial monitor should not start with [0m

Screenshots
If applicable, add screenshots to help explain your problem.

Arduino Information:

  • OS: Linux Mint
  • IDE Arduino
  • IDE Version 1.8.9
  • Board ESP32

Additional context
Add any other context about the problem here.

A couple suggestions

After a little more understanding of your code I see the custom callback function that will easily accomplish what I was trying to do with this suggestion in a much better way.

Thank you again...

First, thank you for a great troubleshooting tool!

A have two suggestions. The "m" command only shows the free heap memory which is certainly useful. I have added the flash chip size, sketch size and free sketch space.

//Added the following lines to get more info; 
telnetClient.print("* Flash Chip Size: "); 
telnetClient.println(ESP.getFlashChipSize()); 
telnetClient.print("* Sketch Size: "); 
telnetClient.println(ESP.getSketchSize()); 
telnetClient.print("* Free Sketch Space: "); 
telnetClient.println(ESP.getFreeSketchSpace());

This could arguably be included in the second but I like them separate.

The second suggestion is to add a flag to enable some output configured in the user's sketch triggered by a command. The existing mechanisms are great for periodic diagnostic messages. I often find the desire for diagnostic information on command.

Added to RemoteDebug.h in the public section:

 boolean userInfo;

Added to RemoteDebug.cpp:

help.concat("    u -> trigger user info\r\n");

and

       } else if (_command == "u") {
	// Set flag to enable output of user configured data
	// User must set the flag false
	userInfo = true;
	telnetClient.printf("* User info triggered:\r\n");

Then the user can add something like this to the loop section:

if(Debug.userInfo) {
	// Add code here to output disgnostic information
	INFO("User Info Flag detected\n");
	Debug.userInfo = false;  // Set the flag false to prevent repeating the information
}

Thank you for your great work and consideration of these suggestions.

John

Way of setting Telnet port

Hi there, and thanx for this nice addition. Worx like a charm.
For reasons of obfuscating, I want to set the Telnet port to something other than 23. I designed a solution for this, see included files. I also changed the word 'setted' into 'set' in several places, hope you don't mind.
Keep up the good work!
PjotrekSE

RemoteDebug.cpp.txt
RemoteDebug.h.txt

RemoteDebug_Advanced example, little error

processCmdRemoteDebug doest work properly, in line 288
if (Debug.getLastCommand() = "bench1") {
should be "==" instead of "="?

also Debug.ative, ative is typo with active?
The library is amazing! Thank you

If telnet password is set the timeout due to inactivity is always set to 1 min

Looking at the code below the telnet connection will be closed after 1 min of inactivity even when MAX_TIME_INACTIVE is set to different value.

`
#ifdef MAX_TIME_INACTIVE

	// Inactivity - close connection if not received commands from user in telnet
	// For reduce overheads

	uint32_t maxTime = MAX_TIME_INACTIVE; // Normal

	if (_password != "") { // Request password - 18/08/08
		maxTime = 60000; // One minute to password
	}

	if ((millis() - _lastTimeCommand) > maxTime) {
		TelnetClient.println("* Closing session by inactivity");
		TelnetClient.stop();
		_connected = false;
		_silence = false;
	}

#endif`

Getting a debug in startup

Hi,

I am trying to print some values from the startup.
I tried to do it by doing this:

  1. using your basic example
  2. right before the end of startup (below the long list of Serial.println()), I add these lines:
delay(15000);  // this gives me time to connect Putty, 
rdebugDln("startup done");
delay(1000); 
Debug.handle();
delay(5000); // instead of the  yield();

But in Putty, I dont see the startup done, I only see the debug from the loop.
In the docs you mention that Debug.handle(); should be in loop. But is there a way to also use it in startup.

Call remote debug with a single statement

Using if ( Debug.isActive( .. ) ) is a bit annoying if you have lots of debug messages.

Using a function like

Debug.printf( debugLevel , "Some string with some format place holders %d %s", some, variables );

code would be cleaner.

it could be implemented as

size_t RemoteDebug::printf (uint8_t debugLevel, const char* format , ...) {
    if (isActive (debugLevel)) {
        va_list argptr;
        va_start (argptr, format);
        printf (format, argptr);
        va_end (argptr);
    } 
}

Do you agree?

Disable WS is not working

Describe the bug
The switch #define WEBSOCKET_DISABLED true is not working. I'm trying to use RemoteDebug, but I'm not able to disable WebSocket. I need to disable websocket as I'm using it in my code.

I try also the Advance Example and the behavior is the same.

To Reproduce
Steps to reproduce the behavior:

  1. Compile the "RemoteDebug_Advanced" example with #define WEBSOCKET_DISABLED true
  2. Connect to ESP with "http://joaolopesf.net/remotedebugapp/"
  3. If the WS ic disabled I should not be able to connect with application.

Expected behavior
If the switch #define WEBSOCKET_DISABLED true is enabled, the connection with remotedebugapp should not be possible.

Arduino Information:

  • OS: MacOSX,
  • IDE: Atom + PlatformIO
  • IDE: latest
  • Board: ESP32

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