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# Logs
logs
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*
# Runtime data
pids
*.pid
*.seed
*.pid.lock
# Directory for instrumented libs generated by jscoverage/JSCover
lib-cov
# Coverage directory used by tools like istanbul
coverage
# nyc test coverage
.nyc_output
# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
.grunt
# Bower dependency directory (https://bower.io/)
bower_components
# node-waf configuration
.lock-wscript
# Compiled binary addons (https://nodejs.org/api/addons.html)
build/Release
# Dependency directories
node_modules/
jspm_packages/
# TypeScript v1 declaration files
typings/
# Optional npm cache directory
.npm
# Optional eslint cache
.eslintcache
# Optional REPL history
.node_repl_history
# Output of 'npm pack'
*.tgz
# Yarn Integrity file
.yarn-integrity
# dotenv environment variables file
.env
# next.js build output
.next

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{print} = require 'util'
{spawn} = require 'child_process'
build = () ->
os = require 'os'
if os.platform() == 'win32'
coffeeCmd = 'coffee.cmd'
else
coffeeCmd = 'coffee'
coffee = spawn coffeeCmd, ['-c', '-o', 'build', 'src']
coffee.stderr.on 'data', (data) ->
process.stderr.write data.toString()
coffee.stdout.on 'data', (data) ->
print data.toString()
coffee.on 'exit', (code) ->
if code != 0
process.exit code
task 'build', 'Build ./ from src/', ->
build()

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GNU GENERAL PUBLIC LICENSE
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to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

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# sfz
专门用于给身份证等敏感证件打码的工具，完全基于浏览器本地API，无任何网络请求

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// Generated by CoffeeScript 2.7.0
(function() {
var $, autoRefresh, canvas, dataURItoBlob, drawText, file, generateFileName, graph, image, input, inputItems, makeStyle, readFile, redraw, refresh, textCtx;
$ = function(sel) {
return document.querySelector(sel);
};
inputItems = ['text', 'color', 'alpha', 'angle', 'space', 'size'];
input = {};
image = $('#image');
graph = $('#graph');
refresh = $('#refresh');
autoRefresh = $('#auto-refresh');
file = null;
canvas = null;
textCtx = null;
redraw = null;
dataURItoBlob = function(dataURI) {
var arr, binStr, i, k, len, ref;
binStr = atob((dataURI.split(','))[1]);
len = binStr.length;
arr = new Uint8Array(len);
for (i = k = 0, ref = len - 1; (0 <= ref ? k <= ref : k >= ref); i = 0 <= ref ? ++k : --k) {
arr[i] = binStr.charCodeAt(i);
}
return new Blob([arr], {
type: 'image/png'
});
};
generateFileName = function() {
var d, pad;
pad = function(n) {
if (n < 10) {
return '0' + n;
} else {
return n;
}
};
d = new Date();
return '' + d.getFullYear() + '-' + (pad(d.getMonth() + 1)) + '-' + (pad(d.getDate())) + ' ' + (pad(d.getHours())) + (pad(d.getMinutes())) + (pad(d.getSeconds())) + '.png';
};
readFile = function() {
var fileReader;
if (file == null) {
return;
}
fileReader = new FileReader();
fileReader.onload = function() {
var img;
img = new Image();
img.onload = function() {
var ctx;
canvas = document.createElement('canvas');
canvas.width = img.width;
canvas.height = img.height;
textCtx = null;
ctx = canvas.getContext('2d');
ctx.drawImage(img, 0, 0);
redraw = function() {
ctx.clearRect(0, 0, canvas.width, canvas.height);
return ctx.drawImage(img, 0, 0);
};
drawText();
graph.innerHTML = '';
graph.appendChild(canvas);
return canvas.addEventListener('click', function() {
var blob, imageData, link;
link = document.createElement('a');
link.download = generateFileName();
imageData = canvas.toDataURL('image/png');
blob = dataURItoBlob(imageData);
link.href = URL.createObjectURL(blob);
graph.appendChild(link);
return setTimeout(function() {
link.click();
return graph.removeChild(link);
}, 100);
});
};
return img.src = fileReader.result;
};
return fileReader.readAsDataURL(file);
};
makeStyle = function() {
var match;
match = input.color.value.match(/^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i);
return 'rgba(' + (parseInt(match[1], 16)) + ',' + (parseInt(match[2], 16)) + ',' + (parseInt(match[3], 16)) + ',' + input.alpha.value + ')';
};
drawText = function() {
var i, j, k, l, margin, ref, ref1, ref2, ref3, step, textSize, width, x, y;
if (canvas == null) {
return;
}
textSize = input.size.value * Math.max(15, (Math.min(canvas.width, canvas.height)) / 25);
if (textCtx != null) {
redraw();
} else {
textCtx = canvas.getContext('2d');
}
textCtx.save();
textCtx.translate(canvas.width / 2, canvas.height / 2);
textCtx.rotate(input.angle.value * Math.PI / 180);
textCtx.fillStyle = makeStyle();
textCtx.font = 'bold ' + textSize + 'px -apple-system,"Helvetica Neue",Helvetica,Arial,"PingFang SC","Hiragino Sans GB","WenQuanYi Micro Hei",sans-serif';
width = (textCtx.measureText(input.text.value)).width;
step = Math.sqrt((Math.pow(canvas.width, 2)) + (Math.pow(canvas.height, 2)));
margin = (textCtx.measureText('啊')).width;
x = Math.ceil(step / (width + margin));
y = Math.ceil((step / (input.space.value * textSize)) / 2);
for (i = k = ref = -x, ref1 = x; (ref <= ref1 ? k <= ref1 : k >= ref1); i = ref <= ref1 ? ++k : --k) {
for (j = l = ref2 = -y, ref3 = y; (ref2 <= ref3 ? l <= ref3 : l >= ref3); j = ref2 <= ref3 ? ++l : --l) {
textCtx.fillText(input.text.value, (width + margin) * i, input.space.value * textSize * j);
}
}
textCtx.restore();
};
image.addEventListener('change', function() {
var ref;
file = this.files[0];
if ((ref = file.type) !== 'image/png' && ref !== 'image/jpeg' && ref !== 'image/gif') {
return alert('仅支持 png, jpg, gif 图片格式');
}
return readFile();
});
inputItems.forEach(function(item) {
var el;
el = $('#' + item);
input[item] = el;
autoRefresh.addEventListener('change', function() {
if (this.checked) {
return refresh.setAttribute('disabled', 'disabled');
} else {
return refresh.removeAttribute('disabled');
}
});
el.addEventListener('input', function() {
if (autoRefresh.checked) {
return drawText();
}
});
return refresh.addEventListener('click', drawText);
});
}).call(this);

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"/>
<title>图片水印打码工具</title>
<style>
#container {
max-width: 500px;
margin: 30px auto;
}
h1 { margin: 0 }
p, article { margin: 0 0 20px 0 }
article { font-size: 14px; color: #777 }
label { color: blue; font-size: 17px }
p label { color: black; display: inline-block; margin-right: 5px; font-size: 15px }
p { font-size: 15px; line-height: 30px }
p > * { vertical-align: middle }
input#text { width: 100%; box-sizing: border-box; font-size: 16px; margin-bottom: 10px }
input[type=range] { width: 200px; height: 18px; }
canvas { box-sizing: border-box; width: 100%; border: 1px dashed #AAA; cursor: pointer }
</style>
</head>
<div id="container">
<h1>图片水印打码工具</h1>
<article>安全地为你的图片加水印，无任何网络请求，特别适合各种敏感证件（身份证，驾照，护照等）。<a href="https://github.com/joyqi/sfz">Github地址</a></article>
<label for="image">第一步：先选择一张本地图片</label>
<p><input type="file" id="image" autocomplete="off"></p>
<label for="text">第二步：输入需要打水印的文字</label>
<p><input type="text" id="text" placeholder="请输入文字" autocomplete="off" maxlength="30">
<label for="color">颜色</label>
<input type="color" id="color" pattern="#[0-9A-Fa-f]{6}" autocomplete="off" value="#0000FF"><br>
<label for="alpha">透明度</label>
<input type="range" id="alpha" min="0" max="1" step="0.05" autocomplete="off" value="0.15"><br>
<label for="angle">角度</label>
<input type="range" id="angle" min="-90" max="90" step="3" autocomplete="off" value="45"><br>
<label for="space">间隔</label>
<input type="range" id="space" min="1" max="8" step="0.2" autocomplete="off" value="4"><br>
<label for="size">字号</label>
<input type="range" id="size" min="0.5" max="3" step="0.05" autocomplete="off" value="1">
</p>
<label for="text">第三步：点击图片下载</label>
<p>
<label for="auto-refresh">实时刷新</label>
<input type="checkbox" id="auto-refresh" autocomplete="off" checked>
<button id="refresh" disabled>刷新</button>
</p>
<p id="graph"></p>
</div>
<script src="./build/script.js"></script>
</html>

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$ = (sel) -> document.querySelector sel
inputItems = ['text', 'color', 'alpha', 'angle', 'space', 'size']
input = {}
image = $ '#image'
graph = $ '#graph'
refresh = $ '#refresh'
autoRefresh = $ '#auto-refresh'
file = null
canvas = null
textCtx = null
redraw = null
dataURItoBlob = (dataURI) ->
binStr = atob (dataURI.split ',')[1]
len = binStr.length
arr = new Uint8Array len
for i in [0..len - 1]
arr[i] = binStr.charCodeAt i
new Blob [arr], type: 'image/png'
generateFileName = ->
pad = (n) -> if n < 10 then '0' + n else n
d = new Date
'' + d.getFullYear() + '-' + (pad d.getMonth() + 1) + '-' + (pad d.getDate()) + ' ' + \
(pad d.getHours()) + (pad d.getMinutes()) + (pad d.getSeconds()) + '.png'
readFile = ->
return if not file?
fileReader = new FileReader
fileReader.onload = ->
img = new Image
img.onload = ->
canvas = document.createElement 'canvas'
canvas.width = img.width
canvas.height = img.height
textCtx = null
ctx = canvas.getContext '2d'
ctx.drawImage img, 0, 0
redraw = ->
ctx.clearRect 0, 0, canvas.width, canvas.height
ctx.drawImage img, 0, 0
drawText()
graph.innerHTML = ''
graph.appendChild canvas
canvas.addEventListener 'click', ->
link = document.createElement 'a'
link.download = generateFileName()
imageData = canvas.toDataURL 'image/png'
blob = dataURItoBlob imageData
link.href = URL.createObjectURL blob
graph.appendChild link
setTimeout ->
link.click()
graph.removeChild link
, 100
img.src = fileReader.result
fileReader.readAsDataURL file
makeStyle = ->
match = input.color.value.match /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i
'rgba(' + (parseInt match[1], 16) + ',' + (parseInt match[2], 16) + ',' \
+ (parseInt match[3], 16) + ',' + input.alpha.value + ')'
drawText = ->
return if not canvas?
textSize = input.size.value * Math.max 15, (Math.min canvas.width, canvas.height) / 25
if textCtx?
redraw()
else
textCtx = canvas.getContext '2d'
textCtx.save()
textCtx.translate(canvas.width / 2, canvas.height / 2)
textCtx.rotate (input.angle.value) * Math.PI / 180
textCtx.fillStyle = makeStyle()
textCtx.font = 'bold ' + textSize + 'px -apple-system,"Helvetica Neue",Helvetica,Arial,"PingFang SC","Hiragino Sans GB","WenQuanYi Micro Hei",sans-serif'
width = (textCtx.measureText input.text.value).width
step = Math.sqrt (Math.pow canvas.width, 2) + (Math.pow canvas.height, 2)
margin = (textCtx.measureText '啊').width
x = Math.ceil step / (width + margin)
y = Math.ceil (step / (input.space.value * textSize)) / 2
for i in [-x..x]
for j in [-y..y]
textCtx.fillText input.text.value, (width + margin) * i, input.space.value * textSize * j
textCtx.restore()
return
image.addEventListener 'change', ->
file = @files[0]
return alert '仅支持 png, jpg, gif 图片格式' if file.type not in ['image/png', 'image/jpeg', 'image/gif']
readFile()
inputItems.forEach (item) ->
el = $ '#' + item
input[item] = el
autoRefresh.addEventListener 'change', ->
if @checked
refresh.setAttribute 'disabled', 'disabled'
else
refresh.removeAttribute 'disabled'
el.addEventListener 'input', ->
drawText() if autoRefresh.checked
refresh.addEventListener 'click', drawText