-
Notifications
You must be signed in to change notification settings - Fork 0
/
namecoin.html
460 lines (436 loc) · 20.2 KB
/
namecoin.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>namecoin.html</title>
<style type="text/css">
.end-element { fill : #FFCCFF; }
</style>
<script src="https://cdnjs.cloudflare.com/ajax/libs/raphael/2.3.0/raphael.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/flowchart/1.17.1/flowchart.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.1/js/bootstrap.bundle.min.js"></script>
<!-- <script src="../release/flowchart.min.js"></script> -->
<script>
window.onload = function () {
var btn = document.getElementById("run"),
cd = document.getElementById("code"),
chart;
(btn.onclick = function () {
var code = cd.value;
if (chart) {
chart.clean();
}
chart = flowchart.parse(code);
chart.drawSVG('canvas', {
'x': 0,
'y': 0,
'line-width': 3,
//'maxWidth': 15,//ensures the flowcharts fits within a certain width
'line-length': 50,
'text-margin': 10,
'font-size': 14,
'font': 'normal',
'font-family': 'Helvetica',
'font-weight': 'normal',
'font-color': 'black',
'line-color': 'black',
'element-color': 'black',
'fill': 'white',
'yes-text': 'yes',
'no-text': 'no',
'arrow-end': 'block',
'scale': 1,
'symbols': {
'start': {
'font-size': 14,
'font-color': 'yellow',
'element-color': 'blue',
'fill': 'green',
'class': 'start-element'
},
'inputoutput': {
'font-color': 'black',
'element-color': 'black',
'fill': 'bisque'
},
'operation': {
'font-color': 'black',
'element-color': 'black',
'fill': 'linen'
},
'subroutine': {
'font-color': 'black',
'element-color': 'blue',
'fill': 'lightgreen'
},
'condition': {
'font-color': 'red',
'element-color': 'black',
'fill': 'yellow'
},
'end':{
'font-size': 20,
'class': 'end-element'
}
},
'flowstate' : {
//'past' : { 'fill' : '#CCCCCC', 'font-size' : 12},
//'current' : {'fill' : 'yellow', 'font-color' : 'red', 'font-weight' : 'bold'},
//'future' : { 'fill' : '#FFFF99'},
'request' : { 'fill' : 'blue'},
'invalid': {'fill' : '#444444'},
'approved' : { 'fill' : '#58C4A3', 'font-size' : 12, 'yes-text' : 'APPROVED', 'no-text' : 'n/a' },
'rejected' : { 'fill' : '#C45879', 'font-size' : 12, 'yes-text' : 'n/a', 'no-text' : 'REJECTED' }
}
});
//create base64 encoding of SVG to generate download link for title(without html or htm).SVG
var currentCanvasDIV = document.getElementById('canvas')
var currentDrawSVG = currentCanvasDIV.innerHTML.replaceAll('ë','e');
const OUTsvgBASE64 = btoa(currentDrawSVG)
doctitle = document.title.replace('.html','');
doctitle = doctitle.replace('.htm','');
var currentCanvasDIV = document.getElementById('canvas')
var currentDrawSVG = currentCanvasDIV.innerHTML.replaceAll('ë','e');
svgSource = currentDrawSVG
svgXML = currentDrawSVG;
// Use SVG Height and Width from the SVG XML to set canvas size
svgXMLsubstringHeight = svgXML.substring(svgXML.indexOf('height='), svgXML.indexOf('version='));
svgXMLsubstringWidth = svgXML.substring(svgXML.indexOf('width='), svgXML.indexOf('xmlns='));
HeightValue = svgXMLsubstringHeight.substring(svgXMLsubstringHeight.indexOf('"')+1,svgXMLsubstringHeight.lastIndexOf('"'));
WidthValue = svgXMLsubstringWidth.substring(svgXMLsubstringWidth.indexOf('"')+1,svgXMLsubstringWidth.lastIndexOf('"'));
HeightValueInt = Math.round(HeightValue)
WidthValueInt = Math.round(WidthValue)
// setup input for base64SvgToBase64Png
let svgSrc = "data:image/svg+xml;base64,"+OUTsvgBASE64;
var pngBase
imageUtil.base64SvgToBase64Png(svgSrc, WidthValueInt, HeightValueInt).then(pngSrc => {
pngBase = pngSrc
// output download link for base64 PNG converted on download from base64
var pngOutHtml = `<a href="${pngBase}" download="${doctitle}.png">PNG - Click here to download current rendered flowchart as ${doctitle}.png</a>`
document.getElementById("pngbase64").innerHTML=pngOutHtml;
});
// output download link for base64 SVG converted on download from base64
var svgOutHtml = `<a href="data:image/svg+xml;base64,${OUTsvgBASE64}" download=${doctitle}.svg>SVG - Click here to download current rendered flowchart as ${doctitle}.svg</a> `
document.getElementById("svgbase64").innerHTML=svgOutHtml;
})();
};
// derived from https://stackoverflow.com/a/64800570
// we need to use web browser canvas to generate a image. In this case png
let imageUtil = {};
/**
* converts a base64 encoded data url SVG image to a PNG image
* @param originalBase64 data url of svg image
* @param width target width in pixel of PNG image
* @param secondTry used internally to prevent endless recursion
* @return {Promise<unknown>} resolves to png data url of the image
*/
imageUtil.base64SvgToBase64Png = function (originalBase64, width, height, secondTry) {
return new Promise(resolve => {
let img = document.createElement('img');
img.onload = function () {
if (!secondTry && (img.naturalWidth === 0 || img.naturalHeight === 0)) {
let svgDoc = base64ToSvgDocument(originalBase64);
let fixedDoc = fixSvgDocumentFF(svgDoc);
return imageUtil.base64SvgToBase64Png(svgDocumentToBase64(fixedDoc), width, height, true).then(result => {
resolve(result);
});
}
//document.body.appendChild(img);
let canvas2 = document.createElement("canvas");
//document.body.removeChild(img);
canvas2.width = width;
canvas2.height = height;
let ctx = canvas2.getContext("2d");
ctx.drawImage(img, 0, 0, canvas2.width, canvas2.height);
try {
let data = canvas2.toDataURL('image/png');
resolve(data);
} catch (e) {
resolve(null);
}
};
img.src = originalBase64;
});
}
//needed because Firefox doesn't correctly handle SVG with size = 0, see https://bugzilla.mozilla.org/show_bug.cgi?id=700533
function fixSvgDocumentFF(svgDocument) {
try {
let widthInt = parseInt(svgDocument.documentElement.width.baseVal.value) || 500;
let heightInt = parseInt(svgDocument.documentElement.height.baseVal.value) || 500;
svgDocument.documentElement.width.baseVal.newValueSpecifiedUnits(SVGLength.SVG_LENGTHTYPE_PX, widthInt);
svgDocument.documentElement.height.baseVal.newValueSpecifiedUnits(SVGLength.SVG_LENGTHTYPE_PX, heightInt);
return svgDocument;
} catch (e) {
return svgDocument;
}
}
function svgDocumentToBase64(svgDocument) {
try {
let base64EncodedSVG = btoa(new XMLSerializer().serializeToString(svgDocument));
return 'data:image/svg+xml;base64,' + base64EncodedSVG;
} catch (e) {
return null;
}
}
function base64ToSvgDocument(base64) {
let svg = atob(base64.substring(base64.indexOf('base64,') + 7));
svg = svg.substring(svg.indexOf('<svg'));
let parser = new DOMParser();
return parser.parseFromString(svg, "image/svg+xml");
}
</script>
<script>
function HelpText() {
var x = document.getElementById("HelpTextBlock");
if (x.style.display === "none") {
x.style.display = "block";
} else {
x.style.display = "none";
}
}
</script>
</head>
<body>
<div><textarea id="code" style="width: 100%;" rows="11">op2=>operation: '\nNamecoin queries\n'
op4=>operation: import base64
op6=>operation: import httplib
op8=>operation: import json
op10=>operation: import os
op12=>operation: import socket
op14=>operation: import sys
op16=>operation: import defaults
op18=>operation: from addresses import decodeAddress
op20=>operation: from bmconfigparser import config
op22=>operation: from debug import logger
op24=>operation: from tr import _translate
op26=>operation: configSection = 'bitmessagesettings'
op28=>operation: class RPCError(Exception):
'Error thrown when the RPC call returns an error.'
error = None
def __init__(self, data):
super(RPCError, self).__init__()
self.error = data
def __str__(self):
return '{0}: {1}'.format(type(self).__name__, self.error)
op30=>operation: class namecoinConnection(object):
'This class handles the Namecoin identity integration.'
user = None
password = None
host = None
port = None
nmctype = None
bufsize = 4096
queryid = 1
con = None
def __init__(self, options=None):
'\n Initialise. If options are given, take the connection settings from\n them instead of loading from the configs. This can be used to test\n currently entered connection settings in the config dialog without\n actually changing the values (yet).\n '
if (options is None):
self.nmctype = config.get(configSection, 'namecoinrpctype')
self.host = config.get(configSection, 'namecoinrpchost')
self.port = int(config.get(configSection, 'namecoinrpcport'))
self.user = config.get(configSection, 'namecoinrpcuser')
self.password = config.get(configSection, 'namecoinrpcpassword')
else:
self.nmctype = options['type']
self.host = options['host']
self.port = int(options['port'])
self.user = options['user']
self.password = options['password']
assert ((self.nmctype == 'namecoind') or (self.nmctype == 'nmcontrol'))
if (self.nmctype == 'namecoind'):
self.con = httplib.HTTPConnection(self.host, self.port, timeout=3)
def query(self, identity):
"\n Query for the bitmessage address corresponding to the given identity\n string. If it doesn't contain a slash, id/ is prepended. We return\n the result as (Error, Address) pair, where the Error is an error\n message to display or None in case of success.\n "
slashPos = identity.find('/')
if (slashPos < 0):
display_name = identity
identity = ('id/' + identity)
else:
display_name = identity.split('/')[1]
try:
if (self.nmctype == 'namecoind'):
res = self.callRPC('name_show', [identity])
res = res['value']
elif (self.nmctype == 'nmcontrol'):
res = self.callRPC('data', ['getValue', identity])
res = res['reply']
if (not res):
return (_translate('MainWindow', 'The name %1 was not found.').arg(identity.decode('utf-8', 'ignore')), None)
else:
assert False
except RPCError as exc:
logger.exception('Namecoin query RPC exception')
if isinstance(exc.error, dict):
errmsg = exc.error['message']
else:
errmsg = exc.error
return (_translate('MainWindow', 'The namecoin query failed (%1)').arg(errmsg.decode('utf-8', 'ignore')), None)
except AssertionError:
return (_translate('MainWindow', 'Unknown namecoin interface type: %1').arg(self.nmctype.decode('utf-8', 'ignore')), None)
except Exception:
logger.exception('Namecoin query exception')
return (_translate('MainWindow', 'The namecoin query failed.'), None)
try:
res = json.loads(res)
except ValueError:
pass
else:
try:
display_name = res['name']
except KeyError:
pass
res = res.get('bitmessage')
valid = (decodeAddress(res)[0] == 'success')
return ((None, ('%s <%s>' % (display_name, res))) if valid else (_translate('MainWindow', 'The name %1 has no associated Bitmessage address.').arg(identity.decode('utf-8', 'ignore')), None))
def test(self):
'\n Test the connection settings. This routine tries to query a "getinfo"\n command, and builds either an error message or a success message with\n some info from it.\n '
try:
if (self.nmctype == 'namecoind'):
try:
vers = self.callRPC('getinfo', [])['version']
except RPCError:
vers = self.callRPC('getnetworkinfo', [])['version']
v3 = (vers % 100)
vers = (vers / 100)
v2 = (vers % 100)
vers = (vers / 100)
v1 = vers
if (v3 == 0):
versStr = ('0.%d.%d' % (v1, v2))
else:
versStr = ('0.%d.%d.%d' % (v1, v2, v3))
message = ('success', _translate('MainWindow', 'Success! Namecoind version %1 running.').arg(versStr.decode('utf-8', 'ignore')))
elif (self.nmctype == 'nmcontrol'):
res = self.callRPC('data', ['status'])
prefix = 'Plugin data running'
if (('reply' in res) and (res['reply'][:len(prefix)] == prefix)):
return ('success', _translate('MainWindow', 'Success! NMControll is up and running.'))
logger.error('Unexpected nmcontrol reply: %s', res)
message = ('failed', _translate('MainWindow', "Couldn't understand NMControl."))
else:
sys.exit('Unsupported Namecoin type')
return message
except Exception:
logger.info('Namecoin connection test failure')
return ('failed', _translate('MainWindow', 'The connection to namecoin failed.'))
def callRPC(self, method, params):
'Helper routine that actually performs an JSON RPC call.'
data = {'method': method, 'params': params, 'id': self.queryid}
if (self.nmctype == 'namecoind'):
resp = self.queryHTTP(json.dumps(data))
elif (self.nmctype == 'nmcontrol'):
resp = self.queryServer(json.dumps(data))
else:
assert False
val = json.loads(resp)
if (val['id'] != self.queryid):
raise Exception('ID mismatch in JSON RPC answer.')
if (self.nmctype == 'namecoind'):
self.queryid = (self.queryid + 1)
error = val['error']
if (error is None):
return val['result']
if isinstance(error, bool):
raise RPCError(val['result'])
raise RPCError(error)
def queryHTTP(self, data):
'Query the server via HTTP.'
result = None
try:
self.con.putrequest('POST', '/')
self.con.putheader('Connection', 'Keep-Alive')
self.con.putheader('User-Agent', 'bitmessage')
self.con.putheader('Host', self.host)
self.con.putheader('Content-Type', 'application/json')
self.con.putheader('Content-Length', str(len(data)))
self.con.putheader('Accept', 'application/json')
authstr = ('%s:%s' % (self.user, self.password))
self.con.putheader('Authorization', ('Basic %s' % base64.b64encode(authstr)))
self.con.endheaders()
self.con.send(data)
except:
logger.info('HTTP connection error')
return None
try:
resp = self.con.getresponse()
result = resp.read()
if (resp.status != 200):
raise Exception(('Namecoin returned status %i: %s' % (resp.status, resp.reason)))
except:
logger.info('HTTP receive error')
return None
return result
def queryServer(self, data):
'Helper routine sending data to the RPC "\n "server and returning the result.'
try:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.settimeout(3)
s.connect((self.host, self.port))
s.sendall(data)
result = ''
while True:
tmp = s.recv(self.bufsize)
if (not tmp):
break
result += tmp
s.close()
return result
except socket.error as exc:
raise Exception(('Socket error in RPC connection: %s' % exc))
st33=>start: start lookupNamecoinFolder
io35=>inputoutput: input:
op38=>operation: '\n Look up the namecoin data folder.\n\n .. todo:: Check whether this works on other platforms as well!\n '
op40=>operation: app = 'namecoin'
op42=>operation: from os import path, environ
cond45=>condition: if (sys.platform == 'darwin')
cond50=>condition: if ('HOME' in environ)
op54=>operation: dataFolder = (path.join(os.environ['HOME'], 'Library/Application Support/', app) + '/')
io79=>inputoutput: output: dataFolder
e77=>end: end function return
sub58=>subroutine: sys.exit('Could not find home folder, please report this message and your OS X version to the BitMessage Github.')
cond64=>condition: if (('win32' in sys.platform) or ('win64' in sys.platform))
op68=>operation: dataFolder = (path.join(environ['APPDATA'], app) + '\\')
op72=>operation: dataFolder = (path.join(environ['HOME'], ('.%s' % app)) + '/')
op2->op4
op4->op6
op6->op8
op8->op10
op10->op12
op12->op14
op14->op16
op16->op18
op18->op20
op20->op22
op22->op24
op24->op26
op26->op28
op28->op30
op30->st33
st33->io35
io35->op38
op38->op40
op40->op42
op42->cond45
cond45(yes)->cond50
cond50(yes)->op54
op54->io79
io79->e77
cond50(no)->sub58
sub58->io79
cond45(no)->cond64
cond64(yes)->op68
op68->io79
cond64(no)->op72
op72->io79
</textarea></div>
<div><button id="run" type="button">Run</button> <button onclick="HelpText()">Format Help</button></div>
<div id="HelpTextBlock" style="display:none"><br/>Conditions can also be redirected like cond(yes, bottom) or cond(yes, right)
... and the other symbols too... like sub1(right)<br/>
You can also tweak the <b>diagram.drawSVG('diagram', {});</b> script in this file for more changes<br/>
This is based on <a href="https://github.com/adrai/flowchart.js">flowchart.js on github</a> and <a href="http://flowchart.js.org">http://flowchart.js.org</a> more documentation can be found over there.
</div><br/><div id="svgbase64"></div>
<div id="pngbase64"></div>
<div id="canvas"></div>
</body>
</html>