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Author Topic: MultiBit  (Read 336095 times)
jim618 (OP)
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January 04, 2013, 08:57:19 AM
 #1101

If you look at the https://multibit.org/releases.html you can see there is a test version of MultiBit with them in already.
(it's the 0.5.7beta version)

There is some more work in finishing them off before it goes on release to everybody.
You can download it from https://multibit.org/releases/multibit-0.5.7beta to try it out.

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Even in the event that an attacker gains more than 50% of the network's computational power, only transactions sent by the attacker could be reversed or double-spent. The network would not be destroyed.
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jim618 (OP)
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January 04, 2013, 03:08:24 PM
Last edit: January 04, 2013, 03:25:56 PM by jim618
 #1102


Hm... What's needed right now is a better alternative to Bitcoin-Qt for newbies that don't want to spend several days downloading gigabytes of blockchain. I would recommend MultiBit if it had wallet encryption.

The feature you describe above sounds useful, but is it really worth spending time on it now? How about pushing that to 0.6+, and releasing a 0.5 with the same type of wallet encryption that Bitcoin-Qt has?

MultiBit has an opportunity to increase its "market share" now while Bitcoin-Qt sucks, that may go away when ultraprune arrives. Grin


After some discussion on the bitcoinj mailing list, I've come round to Foo's point of view in that the wallet master key is not really worth the development effort. The time would be better spent on finishing off the current encryption code and getting it out the door.

This would then enable me to contribute earlier to the Java hierarchical deterministic (HD) wallets coding.
HD wallets are probably going to take over from 'random key' wallets anyhow. Having the mnemonic pass phrase will enable you to recreate the whole wallet (Electrum style) if you need to.

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January 05, 2013, 04:28:05 PM
 #1103

If you look at the https://multibit.org/releases.html you can see there is a test version of MultiBit with them in already.
(it's the 0.5.7beta version)

There is some more work in finishing them off before it goes on release to everybody.
You can download it from https://multibit.org/releases/multibit-0.5.7beta to try it out.

Giving it a download now. Thanks!
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January 05, 2013, 07:44:38 PM
Last edit: January 05, 2013, 09:24:39 PM by jim618
 #1104

I have been playing around today with the 'seaglass' look and feel.
Whilst it looks very nice unfortunately it does not handle the mouse scroll wheel properly in combo boxes and window scroll bars. It 'kinda' works but not 100%.
I have thus dropped it from the code.


Also, there has been quite a lot of localisation work done over the last couple of weeks (Thanks!)
so I plan to release another live version, hopefully on Monday.

I will include all the localisation work that is done by Monday morning (GMT). There are also some code tidy ups that would be nice to get out but the release if mainly for the localisation work.

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January 07, 2013, 11:06:50 AM
 #1105

I think the right way to go for making MultiBit look sexier is probably judicious use of a few custom widgets and drawing styles. Having a white background with some tasteful artwork in the background can make a big difference to how an app looks. If you notice, most of the best looking web pages and web apps in the Bitcoin world  use non-standard button styles and the like, so they can more easily use color to distinguish things. There are probably libraries out there that can be used to spiff up Swing apps a bit, but even with standard widgets, just replacing a few things (like the tab selectors) with custom artwork would go a long way.
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January 07, 2013, 03:04:55 PM
 #1106

Yeah -  I think you are right - Eclipse is a good example where a few custom components improve it no end.

The Java look and feel trys to be everything to all platforms and does not quite make it.

Most commercial apps, as you say, have their own design rules.

I would imagine for the next few months I'll just concentrate on the code and raw functionality and just keep the UI roughly the same.
TBH I am not sure the addresses paradigm is quite right but don't know what to replace it with.

The seaglass look and feel is the nicest I have seen but unfortunately isn't quite ready for production use yet.

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January 07, 2013, 03:25:01 PM
 #1107

There is a new live release of MultiBit available at:

https://multibit.org


Version 0.4.18

Enhancements:
+ Issue 63 fixed (default fee of 1 BTC for comma decimal separator languages).
+ Removed splash screen (and help about) image as it was causing a Segmentation Fault on openjdk6 when viewed in 256 colors.
+ Fixed flickery first transaction row.
+ Fixed color of Transactions description column in RTL languages.

Scan of release checklist


This is primarily a localisation update with a few bug fixes and tidy ups.

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January 08, 2013, 07:32:47 PM
 #1108

I've switched back to the encrypted wallets code branch now.
Whilst forward porting everything from 0.4.18, I have also noticed and fixed:

+ Now only hits currency server if ticker is shown or currency conversions are on
+ Fiat currency fields only shown on Send and Request tabs if/when fiat currency successfully found from remote server
+ Fixed help tab borking MultiBit if no network connection present
+ Removed cacheManager code - no longer supported

I am basically trying to "productionise" the code as much as possible.

Probably the next week or so will be going through all the encrypted wallet code again, working through Mike's review of it (that he did before Xmas) and preparing a pull request into bitcoinj.

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January 09, 2013, 09:00:14 AM
 #1109

On multibit.org can you change http://platform.twitter.com/widgets.js to https://platform.twitter.com/widgets.js ?

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January 09, 2013, 09:15:15 AM
Last edit: January 09, 2013, 09:44:01 AM by jim618
 #1110

Hi HostFat,

Will do - presumably your browser is saying something like 'some of this page's content is unencrypted blah blah'.

edit: Done. There are still a couple of http only links on that page (http://translate.multibit.org and http://lovebitcoins.org but neither of those have ssl certificates).

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January 09, 2013, 10:41:10 AM
 #1111

Links are OK but when you import resources, browsers will complain.

I think over time we'll phase out addresses for most users. They are convenient but have many problems. Exchanging payment request files/URLs is the way to go. Hopefully in the end most users will never see addresses/keys at all.

By the way I plan to reimplement your boomerang rule code in a different way.
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January 09, 2013, 11:00:43 AM
 #1112

RE: links - ok good - don't need to worry about those http links.

Yeah - bitcoin addresses aren't terribly friendly.
I think the payment/ invoice paradigm Gavin is spearheading will be more useful for people as then you can track outstanding invoices etc and chase people up for payment. I guess MultiBit will end up looking like a generic accounts software package. That won't be a bad thing as then I can run training courses on how to use it to Accountants. :-)


For the boomerang rule I noticed whilst having a look at your PeerGroup code that I think you have already done a lot of it (minimum number of peers to connect to and number of peers that have seen a tx is already on Transaction Confidence). I was not aware of that PeerGroup code when I did it I must admit as that is a better level to do it at, rather than in the application layer.

Once it is in bitcoinj I can get rid of the application layer code in MultiBit that does it and refactor it to use the bitcoinj code. (Always happy if there is less code in MultiBit to maintain). The UI probably wouldn't need to change at all.


I am a bit behind bitcoinj capabilities at the moment actually. I was thinking of putting in a Network page now that we have ping times (like Andreas has put in his mobile wallet). It is on the ToDo list anyhow.

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January 09, 2013, 11:17:29 AM
Last edit: January 09, 2013, 03:28:40 PM by jim618
 #1113

Mike,

I wanted to check something protobuf related with you.

I was going to drop from the wallet definition 'minor_version' which just leaves (initially):

  optional int32 major_version = 7;

As the qualifier 'major_' is then redundant am I right that I can define it:

  optional int32 version = 7;

?

i.e. recycle the same protobuf numeric identifier (that will be in the extant wallet files) but just call it something different in the Java code. I think this should be backwards compatible but just wanted to check with you.


The main reason I have not dropped version entirely is to detect 'wallets from the future'.
Also, I am going to make it an int in the Java code as per your comment, as the whole point of having it is for it to be ordinal. Going to leave it as an enum as you can localise it easily and more type safe.



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January 09, 2013, 11:21:56 AM
 #1114

edit: Done. There are still a couple of http only links on that page (http://translate.multibit.org and http://lovebitcoins.org but neither of those have ssl certificates).
I'm still getting the it, have you already uploaded ?

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January 09, 2013, 11:33:24 AM
 #1115

Just checked now as it seems to be on the website - do you have the page cached ?

ie hover over twitter link = https://blah blah

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January 09, 2013, 06:11:20 PM
 #1116

I am a bit behind bitcoinj capabilities at the moment actually. I was thinking of putting in a Network page now that we have ping times (like Andreas has put in his mobile wallet). It is on the ToDo list anyhow.

Great. Feel free to reuse the code in PeerMonitor.java - it's only small but it's Swing and you could just copy it right into your app.

Yes, protobufs only care about tag numbers, you can rename fields and old messages are still readable.

Protobuf enums are tricky. If there's an enum value on the wire that isn't in your app, the field will fail to deserialize completely. I suppose you can use this to detect wallets from the future by checking if the optional field defaults to some UNKNOWN value, but an int is conceptually simpler.
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January 09, 2013, 11:58:40 PM
 #1117

Just to not for everyone compiling Multibit form source:  Jim has updated his bitcoinj branch to: jim/encrypted-wallets-5

link here:
http://code.google.com/r/jimburton618-bitcoinj-coinbase-tx/source/browse?name=encrypted-wallets-5

One off NP-Hard.
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January 10, 2013, 12:06:02 AM
 #1118

Hi Cameron,
Yeah sorry should have said.
That new branch of bitcoinj has the refactoring as a result of Mike's comments. It is preparing a pull request for bitcoinj for the encrypted wallets and I am updating the MultiBit code as I go.

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January 10, 2013, 12:08:08 AM
 #1119


A quick fix for windows:

Code:
    public static Sha256Hash hashFileContents(File f) throws IOException {
        // Lame implementation that just reads the entire file into RAM. Can be made more efficient later.
        FileInputStream fileInputStream = new FileInputStream(f);
        Sha256Hash sha256Hash = create(ByteStreams.toByteArray(fileInputStream));
        fileInputStream.close();
        fileInputStream = null;
        return sha256Hash;
    }

One off NP-Hard.
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January 10, 2013, 11:29:57 AM
 #1120

Website statistics for multibit.org are now available again.

There is a link in the 'Downloads' panel (top right of every page) to:
https://multibit.org/awstats/awstats.pl?config=multibit.org

Updated hourly.

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