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bmconfigparser.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>bmconfigparser.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: '\nBMConfigParser class definition and default configuration settings\n'
op4=>operation: import os
op6=>operation: import shutil
op8=>operation: from threading import Event
op10=>operation: from datetime import datetime
op12=>operation: from six import string_types
op14=>operation: from six.moves import configparser
op16=>operation: try:
import state
except ImportError:
from pybitmessage import state
op18=>operation: SafeConfigParser = configparser.SafeConfigParser
op20=>operation: config_ready = Event()
op22=>operation: class BMConfigParser(SafeConfigParser):
'\n Singleton class inherited from :class:`ConfigParser.SafeConfigParser`\n with additional methods specific to bitmessage config.\n '
_temp = {}
def set(self, section, option, value=None):
if ((self._optcre is self.OPTCRE) or value):
if (not isinstance(value, string_types)):
raise TypeError('option values must be strings')
if (not self.validate(section, option, value)):
raise ValueError(('Invalid value %s' % value))
return SafeConfigParser.set(self, section, option, value)
def get(self, section, option, **kwargs):
'Try returning temporary value before using parent get()'
try:
return self._temp[section][option]
except KeyError:
pass
return SafeConfigParser.get(self, section, option, **kwargs)
def setTemp(self, section, option, value=None):
'Temporary set option to value, not saving.'
try:
self._temp[section][option] = value
except KeyError:
self._temp[section] = {option: value}
def safeGetBoolean(self, section, option):
'Return value as boolean, False on exceptions'
try:
return self.getboolean(section, option)
except (configparser.NoSectionError, configparser.NoOptionError, ValueError, AttributeError):
return False
def safeGetInt(self, section, option, default=0):
'Return value as integer, default on exceptions,\n 0 if default missing'
try:
return int(self.get(section, option))
except (configparser.NoSectionError, configparser.NoOptionError, ValueError, AttributeError):
return default
def safeGetFloat(self, section, option, default=0.0):
'Return value as float, default on exceptions,\n 0.0 if default missing'
try:
return self.getfloat(section, option)
except (configparser.NoSectionError, configparser.NoOptionError, ValueError, AttributeError):
return default
def safeGet(self, section, option, default=None):
'\n Return value as is, default on exceptions, None if default missing\n '
try:
return self.get(section, option)
except (configparser.NoSectionError, configparser.NoOptionError, ValueError, AttributeError):
return default
def items(self, section, raw=False, variables=None):
'Return section variables as parent,\n but override the "raw" argument to always True'
return SafeConfigParser.items(self, section, True, variables)
def _reset(self):
"\n Reset current config.\n There doesn't appear to be a built in method for this.\n "
self._temp = {}
sections = self.sections()
for x in sections:
self.remove_section(x)
def read(self, filenames=None):
self._reset()
SafeConfigParser.read(self, os.path.join(os.path.dirname(__file__), 'default.ini'))
if filenames:
SafeConfigParser.read(self, filenames)
def addresses(self, sort=False):
'Return a list of local bitmessage addresses (from section labels)'
sections = [x for x in self.sections() if x.startswith('BM-')]
if sort:
sections.sort(key=(lambda item: self.get(item, 'label').lower()))
return sections
def save(self):
'Save the runtime config onto the filesystem'
fileName = os.path.join(state.appdata, 'keys.dat')
fileNameBak = '.'.join([fileName, datetime.now().strftime('%Y%j%H%M%S%f'), 'bak'])
try:
shutil.copyfile(fileName, fileNameBak)
fileNameExisted = True
except (IOError, Exception):
fileNameExisted = False
with open(fileName, 'w') as configfile:
self.write(configfile)
if fileNameExisted:
os.remove(fileNameBak)
def validate(self, section, option, value):
'Input validator interface (using factory pattern)'
try:
return getattr(self, ('validate_%s_%s' % (section, option)))(value)
except AttributeError:
return True
@staticmethod
def validate_bitmessagesettings_maxoutboundconnections(value):
'Reject maxoutboundconnections that are too high or too low'
try:
value = int(value)
except ValueError:
return False
if ((value < 0) or (value > 8)):
return False
return True
def search_addresses(self, address, searched_text):
'Return the searched label of MyAddress'
return [x for x in [self.get(address, 'label').lower(), address.lower()] if (searched_text in x)]
def disable_address(self, address):
'"Disabling the specific Address'
self.set(str(address), 'enabled', 'false')
self.save()
def enable_address(self, address):
'"Enabling the specific Address'
self.set(address, 'enabled', 'true')
self.save()
cond25=>operation: BMConfigParser.read_file = BMConfigParser.readfp if (not getattr(BMConfigParser, 'read_file', False))
op35=>operation: config = BMConfigParser()
op2->op4
op4->op6
op6->op8
op8->op10
op10->op12
op12->op14
op14->op16
op16->op18
op18->op20
op20->op22
op22->cond25
cond25->op35
</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>