diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..1d3d1bf --- /dev/null +++ b/.gitignore @@ -0,0 +1,15 @@ +autoload/java/ +.idea/ +target/ +*.class + +# Mobile Tools for Java (J2ME) +.mtj.tmp/ + +# Package Files # +*.war +*.ear +*.jar + +# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml +hs_err_pid* diff --git a/README.md b/README.md new file mode 100644 index 0000000..8db0270 --- /dev/null +++ b/README.md @@ -0,0 +1,108 @@ +[TOC] + +作为Vim粉丝一枚，一直在寻找一款好用的Markdown预览插件，功能要简单，能在书写之余偶尔撇一下效果即可，毕竟Markdown语法都烂熟于心了。先是偶然看到了Chrome一款插件[Markdown Viewer](https://chrome.google.com/webstore/detail/markdown-viewer/ckkdlimhmcjmikdlpkmbgfkaikojcbjk)，风格非常喜欢，遗憾的是不能与Vim同步，后来又发现一款Vim插件[markdown-preview.vim](https://github.com/iamcco/markdown-preview.vim)，但是我装了好几次，在我的机器上老是报错。故事本来到此就结束了，但是程序猿乞肯如此轻易屈服，程序猿要让这天，再遮不住眼，要这地，再埋不了心，程序猿要用自己的双手开天辟地！经过程序猿在键盘上一顿猛干，[markdown-preview-sync](https://github.com/pingao777/markdown-preview-sync)横空出世了！好了，就吹到这吧。 + +运行效果如下： + +![snapshot-en](http://ozgrgjwvp.bkt.clouddn.com/markdown-preview-sync/en.png) + +![snapshot-ch](http://ozgrgjwvp.bkt.clouddn.com/markdown-preview-sync/ch.png) + +下面简单介绍下这款插件： + +### 特性 + +- 代码高亮 +- MathJax +- 自定义CSS +- GFM-Table +- 目录TOC + +### 安装准备 + +- Jre8及以上 +- Vim支持python2或python3 + +### 安装方式 + +如果你使用[pathogen](https://github.com/tpope/vim-pathogen)，可以运行如下命令： + +```git +cd your-path-to-bundle +git clone git@github.com:pingao777/markdown-preview-sync.git +``` + +如果你没有使用任何插件管理工具，直接将/autoload和/plugin目录中的文件分别放在Vim的/autoload和/plugin目录即可。 + +注：/src目录是项目源代码，如果不关注直接删掉就可以了。 + +### 设置 + +```vim +" Chrome和Firefox都可以，推荐使用Chrome +" 可以这样设置Chrome路径 +let g:markdown_preview_sync_chrome_path = "" + +" 设置Firefox浏览器路径 +let g:markdown_preview_sync_firefox_path = "" + +" (Optional)设置自定义CSS主题，将你的CSS文件放在autoload/java/webapp/css文件夹下， +" 以“主题名-theme.css”方式命名，然后设置如下变量 +let g:markdown_preview_sync_theme = "主题名" + +" 配置快捷键 +autocmd filetype markdown nnoremap :MarkSyncPreview +autocmd filetype markdown nnoremap :MarkSyncClose +``` + +最后，欢迎大家多多提意见和建议。 + +--- + +### Feature + +- Code Highlight +- MathJax +- Custom CSS +- GFM-Table +- TOC + +### Prerequisite + +- Jre8 or above +- Vim with python2 or python3 support + +### Installation + +If you use [pathogen](https://github.com/tpope/vim-pathogen), do this: + +```git +cd your-path-to-bundle +git clone git@github.com:pingao777/markdown-preview-sync.git +``` + +If you don't use any plugin manager, just copy files in /autoload and /plugin to Vim's /autoload and /plugin directory. + +Note: /src directory is source code, you can simply delete it if you don't need it. + +### Setting + +```vim +" Both Chrome and Firefox are good, but Chrome is prefer +" Set Chrome path +let g:markdown_preview_sync_chrome_path = "" + +" Set Firefox path +let g:markdown_preview_sync_firefox_path = "" + +" (Optional)Set your own css theme, put your css file in +" autoload/java/webapp/css directory with a name: name-theme.css, +" then set +let g:markdown_preview_sync_theme = "name" + +" Set key +autocmd filetype markdown nnoremap :MarkSyncPreview +autocmd filetype markdown nnoremap :MarkSyncClose +``` + +Last but not least, comments and issues are welcome. diff --git a/autoload/mpsync.vim b/autoload/mpsync.vim new file mode 100644 index 0000000..c411848 --- /dev/null +++ b/autoload/mpsync.vim @@ -0,0 +1,143 @@ +if !has("python") && !has("python3") + echo "vim has to be compiled with +python or +python3 to run this" + finish +endif + +if exists("g:markdown_preview_sync_loaded") + finish +endif + +let g:markdown_preview_sync_loaded = 1 + +if !exists("g:markdown_preview_sync_port") + let g:markdown_preview_sync_port = 7788 +endif + +if !exists("g:markdown_preview_sync_theme") + let g:markdown_preview_sync_theme = "github" +endif + +let s:plugin_root_dir = fnamemodify(resolve(expand(":p")), ":h") + +python << EOF +import sys +from os.path import normpath, join +import vim +plugin_root_dir = vim.eval('s:plugin_root_dir') +python_root_dir = normpath(join(plugin_root_dir, 'python')) +sys.path.insert(0, python_root_dir) +import java_vim_bridge +java_vim_bridge.set_port(vim.eval('g:markdown_preview_sync_port')) +EOF + +function! s:start() + execute "silent !start /b java -jar \"" . s:plugin_root_dir . "\"/java/markdown-preview-sync.jar " . g:markdown_preview_sync_port . " " . g:markdown_preview_sync_theme +endfunction + +function! s:is_start() + return exists("g:markdown_preview_sync_start") +endfunction + +function! s:open() + if exists("g:markdown_preview_sync_chrome_path") + execute "silent !start " . g:markdown_preview_sync_chrome_path . " --app=http://127.0.0.1:" . g:markdown_preview_sync_port . "/index" + elseif exists("g:markdown_preview_sync_firefox_path") + execute "silent !start " . g:markdown_preview_sync_firefox_path . " http://127.0.0.1:" . g:markdown_preview_sync_port . "/index" + else + echoerr "Not set browser path" + endif +endfunction + +function! s:sync() +python < call s:trigger_sync() + autocmd bufwrite call s:sync() + autocmd vimleave * call s:stop() + augroup end +endfunction + +function! s:trigger_sync() + if !exists("b:old_current") + let b:old_current = 0 + endif + if !exists("b:old_bottom ") + let b:old_bottom = 0 + endif + if !exists("b:old_last ") + let b:old_last = 0 + endif + + let l:new_current = line(".") + let l:new_bottom = line("w$") + let l:new_last = line("$") + if b:old_last ==# l:new_last + if b:old_bottom > l:new_bottom + if b:old_bottom - l:new_bottom >= 5 + call s:sync() + let b:old_current = l:new_current + let b:old_bottom = l:new_bottom + let b:old_last = l:new_last + endif + elseif b:old_bottom < l:new_bottom + call s:sync() + let b:old_current = l:new_current + let b:old_bottom = l:new_bottom + let b:old_last = l:new_last + elseif b:old_current != l:new_current + call s:sync() + let b:old_current = l:new_current + let b:old_bottom = l:new_bottom + let b:old_last = l:new_last + endif + else + call s:sync() + let b:old_current = l:new_current + let b:old_bottom = l:new_bottom + let b:old_last = l:new_last + endif + + +endfunction + +function! mpsync#preview() + if !s:is_start() + call s:start() + let g:markdown_preview_sync_start = 1 + endif + call s:open() + call s:autocmd() +endfunction + +function! mpsync#close() + if s:is_start() + call s:close() + endif +endfunction \ No newline at end of file diff --git a/autoload/python/java_vim_bridge.py b/autoload/python/java_vim_bridge.py new file mode 100644 index 0000000..e63cfae --- /dev/null +++ b/autoload/python/java_vim_bridge.py @@ -0,0 +1,40 @@ +# -*- coding: utf-8 -*- +"""Bridge connect vim to java + +@author wocanmei +@date 2018-07-15 17:56:25 +""" + +import base64 + +try: + from urllib.parse import urlencode + from urllib.request import urlopen, Request +except ImportError: + from urllib import urlencode + from urllib2 import urlopen, Request + + +url_pre = 'http://127.0.0.1:port' + + +def set_port(port): + global url_pre + url_pre = url_pre.replace('port', port) + + +def sync(path, content, bottom): + params = {'path': path, 'content': base64.b64encode(content), 'bottom': bottom} + request = Request(url_pre + '/sync', data = urlencode(params)) + urlopen(request) + + +def close(path): + params = {'path': path} + request = Request(url_pre + '/close?' + urlencode(params)) + urlopen(request) + + +def stop(): + request = Request(url_pre + '/stop') + urlopen(request) diff --git a/plugin/mpsync.vim b/plugin/mpsync.vim new file mode 100644 index 0000000..38834dc --- /dev/null +++ b/plugin/mpsync.vim @@ -0,0 +1,2 @@ +command! -nargs=0 MarkSyncPreview call mpsync#preview() +command! -nargs=0 MarkSyncClose call mpsync#close() diff --git a/pom.xml b/pom.xml new file mode 100644 index 0000000..7f5d676 --- /dev/null +++ b/pom.xml @@ -0,0 +1,181 @@ + + + + 4.0.0 + + com.pingao + markdown-preview-sync + 1.0-SNAPSHOT + jar + + markdown-preview-sync + https://github.com/pingao777/markdown-preview-sync + Vim Markdown Preview Plugin Implement By Java + + + UTF-8 + 1.8 + 1.8 + + + + ${project.artifactId} + src/main/java + package + + + src/main + + **/*.html + **/*.css + **/*.js + + + + src/main/resources + + + + + maven-clean-plugin + 3.1.0 + + + + ${basedir}/autoload/java + false + + + ${basedir}/autoload/webapp + false + + + + + + org.apache.maven.plugins + maven-shade-plugin + 2.3 + + + package + + shade + + + false + + + com.pingao.Main + + + + + com.pingao:* + + webapp/ + + + + + + + + + org.apache.maven.plugins + maven-resources-plugin + 2.4 + + + UTF-8 + + + + copy-jar + + package + + copy-resources + + + ${basedir}/autoload/java + + + ${basedir}/target + false + + ${project.artifactId}.jar + + + + + + + copy-static + + package + + copy-resources + + + ${basedir}/autoload/java/webapp + + + ${basedir}/src/main/webapp + false + + + + + + + + + + + + + junit + junit + 4.11 + test + + + com.atlassian.commonmark + commonmark + 0.11.0 + + + com.atlassian.commonmark + commonmark-ext-gfm-tables + 0.11.0 + + + io.netty + netty-all + 4.1.12.Final + + + com.google.code.gson + gson + 2.8.0 + + + org.slf4j + slf4j-api + 1.7.21 + + + org.slf4j + slf4j-log4j12 + 1.7.21 + + + org.jsoup + jsoup + 1.11.2 + + + diff --git a/src/main/java/com/pingao/Main.java b/src/main/java/com/pingao/Main.java new file mode 100644 index 0000000..6c7d884 --- /dev/null +++ b/src/main/java/com/pingao/Main.java @@ -0,0 +1,39 @@ +package com.pingao; + +import com.pingao.server.MarkDownServer; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.File; + + +/** + * Created by pingao on 2018/7/12. + */ +public class Main { + private static final Logger LOGGER = LoggerFactory.getLogger(Main.class); + public static final String ROOT_PATH = resolveRootPath(); + + private static String resolveRootPath() { + String path = Main.class.getProtectionDomain().getCodeSource().getLocation().getFile(); + File source = new File(path); + if (source.isDirectory()) { + return source.getAbsolutePath().replace("%20", " "); + } else { + return source.getParentFile().getAbsolutePath().replace("%20", " "); + } + } + + public static void main(String[] args) { + if (args.length < 2) { + throw new IllegalArgumentException("Please provide server port and theme"); + } + + MarkDownServer server = MarkDownServer.getInstance(); + server.start(Integer.parseInt(args[0])); + server.setTheme(args[1]); + Runtime.getRuntime().addShutdownHook(new Thread(server::destroy)); + } +} + + diff --git a/src/main/java/com/pingao/enums/MiMeType.java b/src/main/java/com/pingao/enums/MiMeType.java new file mode 100644 index 0000000..e63ac54 --- /dev/null +++ b/src/main/java/com/pingao/enums/MiMeType.java @@ -0,0 +1,24 @@ +package com.pingao.enums; + +/** + * Created by pingao on 2018/7/13. + */ +public enum MiMeType { + HTML("text/html; charset=UTF-8"), + PLAIN("text/plain; charset=UTF-8"), + JAVA_SCRIPT("application/javascript; charset=UTF-8"), + CSS("text/css; charset=UTF-8"), + JSON("application/json; charset=UTF-8"), + JPEG("image/jpeg"), + PNG("image/png"); + + private String type; + + MiMeType(String type) { + this.type = type; + } + + public String getType() { + return type; + } +} diff --git a/src/main/java/com/pingao/enums/Operate.java b/src/main/java/com/pingao/enums/Operate.java new file mode 100644 index 0000000..9990d62 --- /dev/null +++ b/src/main/java/com/pingao/enums/Operate.java @@ -0,0 +1,8 @@ +package com.pingao.enums; + +/** + * Created by pingao on 2018/7/21. + */ +public enum Operate { + REPLACE, APPEND, REMOVE +} diff --git a/src/main/java/com/pingao/model/MarkDownUnit.java b/src/main/java/com/pingao/model/MarkDownUnit.java new file mode 100644 index 0000000..affb8a2 --- /dev/null +++ b/src/main/java/com/pingao/model/MarkDownUnit.java @@ -0,0 +1,37 @@ +package com.pingao.model; + +import com.pingao.enums.Operate; + + +/** + * Created by pingao on 2018/7/21. + */ +public class MarkDownUnit { + private String id; + private Operate operate; + private String content; + private int isMathJax; + + public MarkDownUnit(String id, Operate operate, String content, int isMathJax) { + this.id = id; + this.operate = operate; + this.content = content; + this.isMathJax = isMathJax; + } + + public String getContent() { + return content; + } + + public void setContent(String content) { + this.content = content; + } + + @Override + public String toString() { + return "MarkDownUnit[id=" + id + + ", operate=" + operate + + ", content=" + content + + ", isMathJax=" + isMathJax; + } +} diff --git a/src/main/java/com/pingao/model/WebSocketMsg.java b/src/main/java/com/pingao/model/WebSocketMsg.java new file mode 100644 index 0000000..d2a62ca --- /dev/null +++ b/src/main/java/com/pingao/model/WebSocketMsg.java @@ -0,0 +1,26 @@ +package com.pingao.model; + +import java.util.List; + + +/** + * Created by pingao on 2018/7/12. + */ +public class WebSocketMsg { + private String command; + private String path; + private List units; + + public WebSocketMsg(String command, String path, List units) { + this.command = command; + this.path = path; + this.units = units; + } + + @Override + public String toString() { + return "WebSocketMsg[command=" + command + + ", path=" + path + + ", units=" + units.size(); + } +} diff --git a/src/main/java/com/pingao/model/YAMLSpan.java b/src/main/java/com/pingao/model/YAMLSpan.java new file mode 100644 index 0000000..bb52af4 --- /dev/null +++ b/src/main/java/com/pingao/model/YAMLSpan.java @@ -0,0 +1,25 @@ +package com.pingao.model; + +/** + * Created by pingao on 2018/7/29. + */ +public class YAMLSpan { + private int endRow = -1; + private int endInd = -1; + + public int getEndRow() { + return endRow; + } + + public void setEndRow(int endRow) { + this.endRow = endRow; + } + + public int getEndInd() { + return endInd; + } + + public void setEndInd(int endInd) { + this.endInd = endInd; + } +} diff --git a/src/main/java/com/pingao/server/HttpRequestHandler.java b/src/main/java/com/pingao/server/HttpRequestHandler.java new file mode 100644 index 0000000..0fb2f84 --- /dev/null +++ b/src/main/java/com/pingao/server/HttpRequestHandler.java @@ -0,0 +1,124 @@ +package com.pingao.server; + +import com.pingao.Main; +import com.pingao.enums.MiMeType; +import com.pingao.utils.Base64Utils; +import com.pingao.utils.FileUtils; +import com.pingao.utils.HtmlUtils; +import io.netty.buffer.Unpooled; +import io.netty.channel.ChannelFuture; +import io.netty.channel.ChannelFutureListener; +import io.netty.channel.ChannelHandlerContext; +import io.netty.channel.SimpleChannelInboundHandler; +import io.netty.handler.codec.http.*; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.Map; + +import static io.netty.handler.codec.http.HttpResponseStatus.OK; +import static io.netty.handler.codec.http.HttpVersion.HTTP_1_1; + + +public class HttpRequestHandler extends SimpleChannelInboundHandler { + private static final Logger LOGGER = LoggerFactory.getLogger(HttpRequestHandler.class); + + private MarkDownServer server; + + public HttpRequestHandler(MarkDownServer server) { + this.server = server; + } + + @Override + public void channelRead0(ChannelHandlerContext ctx, FullHttpRequest request) { + String uri = request.uri(); + LOGGER.info("Request uri {}", uri); + if (uri.startsWith("/index")) { + index(ctx, request); + } else if (uri.startsWith("/ws")) { + ctx.fireChannelRead(request.retain()); + } else if (uri.startsWith("/js") || uri.startsWith("/css")) { + transferStaticFile(ctx, request); + } else if (uri.startsWith("/image")) { + image(ctx, request); + } else if (uri.startsWith("/sync")) { + sync(ctx, request); + } else if (uri.startsWith("/close")) { + close(ctx, request); + } else if (uri.startsWith("/stop")) { + stop(ctx, request); + } else { + commonResponse(ctx, request, FileUtils.getBytes("How do you do"), MiMeType.PLAIN); + } + } + + private void index(ChannelHandlerContext ctx, FullHttpRequest request) { + String html = FileUtils.readAsString(Main.ROOT_PATH + "/webapp/index.html"); + int index = html.indexOf("${theme}"); + html = html.substring(0, index) + server.getTheme() + + html.substring(index + "${theme}".length()); + commonResponse(ctx, request, FileUtils.getBytes(html), MiMeType.HTML); + } + + private void image(ChannelHandlerContext ctx, FullHttpRequest request) { + Map params = HtmlUtils.getParameters(request); + String path = params.get("path"); + commonResponse(ctx, request, FileUtils.readAllBytes(path), HtmlUtils.getMiMeTypeByPath(path)); + } + + private void transferStaticFile(ChannelHandlerContext ctx, FullHttpRequest request) { + String path = Main.ROOT_PATH + "/webapp" + HtmlUtils.getRequestPath(request.uri()); + commonResponse(ctx, request, FileUtils.readAllBytes(path), HtmlUtils.getMiMeTypeByPath(path)); + } + + private void sync(ChannelHandlerContext ctx, FullHttpRequest request) { + Map params = HtmlUtils.getParameters(request); + commonResponse(ctx, request, FileUtils.getBytes("success"), MiMeType.PLAIN); + server.broadcast("sync", params.get("path"), + Base64Utils.decode2String(params.get("content")), Integer.parseInt(params.get("bottom"))); + } + + private void close(ChannelHandlerContext ctx, FullHttpRequest request) { + Map params = HtmlUtils.getParameters(request); + commonResponse(ctx, request, FileUtils.getBytes("success"), MiMeType.PLAIN); + server.broadcast("close", params.get("path"), "", 1); + } + + private void stop(ChannelHandlerContext ctx, FullHttpRequest request) { + commonResponse(ctx, request, FileUtils.getBytes("success"), MiMeType.PLAIN); + System.exit(0); + } + + private void commonResponse(ChannelHandlerContext ctx, FullHttpRequest request, byte[] bytes, MiMeType type) { + if (HttpUtil.is100ContinueExpected(request)) { + send100Continue(ctx); + } + + FullHttpResponse response = + new DefaultFullHttpResponse(HTTP_1_1, OK, Unpooled.wrappedBuffer(bytes)); + + response.headers().set(HttpHeaderNames.CONTENT_TYPE, type.getType()); + response.headers().set(HttpHeaderNames.CONTENT_LENGTH, response.content().readableBytes()); + boolean keepAlive = HttpUtil.isKeepAlive(request); + if (keepAlive) { + response.headers().set(HttpHeaderNames.CONNECTION, HttpHeaderValues.KEEP_ALIVE); + } + ctx.write(response); + ChannelFuture future = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT); + if (!keepAlive) { + future.addListener(ChannelFutureListener.CLOSE); + } + } + + private static void send100Continue(ChannelHandlerContext ctx) { + FullHttpResponse response = new DefaultFullHttpResponse( + HTTP_1_1, HttpResponseStatus.CONTINUE); + ctx.writeAndFlush(response); + } + + @Override + public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) { + cause.printStackTrace(); + ctx.close(); + } +} diff --git a/src/main/java/com/pingao/server/MarkDownServer.java b/src/main/java/com/pingao/server/MarkDownServer.java new file mode 100644 index 0000000..416c663 --- /dev/null +++ b/src/main/java/com/pingao/server/MarkDownServer.java @@ -0,0 +1,103 @@ +package com.pingao.server; + +import com.google.gson.Gson; +import com.google.gson.GsonBuilder; +import com.pingao.model.MarkDownUnit; +import com.pingao.model.WebSocketMsg; +import com.pingao.utils.HtmlUtils; +import com.pingao.utils.JsoupUtils; +import io.netty.bootstrap.ServerBootstrap; +import io.netty.channel.Channel; +import io.netty.channel.ChannelFuture; +import io.netty.channel.EventLoopGroup; +import io.netty.channel.group.ChannelGroup; +import io.netty.channel.group.DefaultChannelGroup; +import io.netty.channel.nio.NioEventLoopGroup; +import io.netty.channel.socket.nio.NioServerSocketChannel; +import io.netty.handler.codec.http.websocketx.TextWebSocketFrame; +import io.netty.util.concurrent.ImmediateEventExecutor; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.net.InetSocketAddress; +import java.util.List; + + +public class MarkDownServer { + private static final Logger LOGGER = LoggerFactory.getLogger(MarkDownServer.class); + + private static final Gson GSON = new GsonBuilder().disableHtmlEscaping().create(); + + private static MarkDownServer INSTANCE; + + private final ChannelGroup channelGroup = + new DefaultChannelGroup(ImmediateEventExecutor.INSTANCE); + private final EventLoopGroup group = new NioEventLoopGroup(); + private Channel channel; + + private boolean isRunning; + + private String theme; + + public static MarkDownServer getInstance() { + if (INSTANCE == null) { + INSTANCE = new MarkDownServer(); + } + return INSTANCE; + } + + private MarkDownServer() { + } + + public String getTheme() { + return theme; + } + + public void setTheme(String theme) { + this.theme = theme; + } + + public ChannelFuture start(int port) { + ServerBootstrap bootstrap = new ServerBootstrap(); + bootstrap.group(group) + .channel(NioServerSocketChannel.class) + .childHandler(new MarkDownServerInitializer(this)); + ChannelFuture future = bootstrap.bind(new InetSocketAddress(port)); + future.syncUninterruptibly(); + channel = future.channel(); + isRunning = true; + LOGGER.info("Markdown server is running..."); + return future; + } + + public void destroy() { + channel.close(); + channelGroup.close(); + group.shutdownGracefully(); + LOGGER.info("Server shutdown success"); + } + + public boolean isRunning() { + return isRunning; + } + + public void addChannel(Channel channel) { + channelGroup.add(channel); + } + + public void broadcast(String command, String path, String content, int bottom) { + String html = HtmlUtils.markdown2Html(HtmlUtils.plugBottomMarker(content, bottom)); + List units = JsoupUtils.diff(path, html); + WebSocketMsg msg = new WebSocketMsg(command, path, units); + String json = GSON.toJson(msg); + channelGroup.writeAndFlush(new TextWebSocketFrame(json)); + LOGGER.info("Broadcast bottom {} msg {} success", bottom, msg); + } + + public static void main(String[] args) { + final MarkDownServer endpoint = new MarkDownServer(); + endpoint.setTheme("github"); + endpoint.start(7788); + Runtime.getRuntime().addShutdownHook(new Thread(endpoint::destroy)); + } +} diff --git a/src/main/java/com/pingao/server/MarkDownServerInitializer.java b/src/main/java/com/pingao/server/MarkDownServerInitializer.java new file mode 100644 index 0000000..fe595a9 --- /dev/null +++ b/src/main/java/com/pingao/server/MarkDownServerInitializer.java @@ -0,0 +1,29 @@ +package com.pingao.server; + +import io.netty.channel.Channel; +import io.netty.channel.ChannelInitializer; +import io.netty.channel.ChannelPipeline; +import io.netty.handler.codec.http.HttpObjectAggregator; +import io.netty.handler.codec.http.HttpServerCodec; +import io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler; +import io.netty.handler.stream.ChunkedWriteHandler; + + +public class MarkDownServerInitializer extends ChannelInitializer { + private final MarkDownServer server; + + public MarkDownServerInitializer(MarkDownServer server) { + this.server = server; + } + + @Override + protected void initChannel(Channel ch) { + ChannelPipeline pipeline = ch.pipeline(); + pipeline.addLast(new HttpServerCodec()); + pipeline.addLast(new ChunkedWriteHandler()); + pipeline.addLast(new HttpObjectAggregator(64 * 1024)); + pipeline.addLast(new HttpRequestHandler(server)); + pipeline.addLast(new WebSocketServerProtocolHandler("/ws")); + pipeline.addLast(new TextWebSocketFrameHandler(server)); + } +} diff --git a/src/main/java/com/pingao/server/TextWebSocketFrameHandler.java b/src/main/java/com/pingao/server/TextWebSocketFrameHandler.java new file mode 100644 index 0000000..4730968 --- /dev/null +++ b/src/main/java/com/pingao/server/TextWebSocketFrameHandler.java @@ -0,0 +1,38 @@ +package com.pingao.server; + +import com.pingao.utils.JsoupUtils; +import io.netty.channel.ChannelHandlerContext; +import io.netty.channel.SimpleChannelInboundHandler; +import io.netty.handler.codec.http.websocketx.TextWebSocketFrame; +import io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + + +public class TextWebSocketFrameHandler extends SimpleChannelInboundHandler { + private static final Logger LOGGER = LoggerFactory.getLogger(TextWebSocketFrameHandler.class); + + private final MarkDownServer server; + + public TextWebSocketFrameHandler(MarkDownServer server) { + this.server = server; + } + + @Override + public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception { + if (evt instanceof WebSocketServerProtocolHandler.HandshakeComplete) { + LOGGER.info("Channel {} joined", ctx.channel()); + server.addChannel(ctx.channel()); + } else { + super.userEventTriggered(ctx, evt); + } + } + + @Override + public void channelRead0(ChannelHandlerContext ctx, TextWebSocketFrame msg) { + msg.retain(); + if (msg.text().contains("close")) { + JsoupUtils.removeCache(msg.text().split(",")[1]); + } + } +} diff --git a/src/main/java/com/pingao/utils/Base64Utils.java b/src/main/java/com/pingao/utils/Base64Utils.java new file mode 100644 index 0000000..12dc99b --- /dev/null +++ b/src/main/java/com/pingao/utils/Base64Utils.java @@ -0,0 +1,16 @@ +package com.pingao.utils; + +import java.nio.charset.Charset; +import java.util.Base64; + + +/** + * Created by pingao on 2018/8/1. + */ +public class Base64Utils { + private static final Base64.Decoder DECODER = Base64.getDecoder(); + + public static String decode2String(String encode) { + return new String(DECODER.decode(encode), Charset.forName("UTF-8")); + } +} diff --git a/src/main/java/com/pingao/utils/FileUtils.java b/src/main/java/com/pingao/utils/FileUtils.java new file mode 100644 index 0000000..ae0d649 --- /dev/null +++ b/src/main/java/com/pingao/utils/FileUtils.java @@ -0,0 +1,49 @@ +package com.pingao.utils; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.io.UnsupportedEncodingException; +import java.nio.charset.Charset; +import java.nio.file.Files; +import java.nio.file.Paths; +import java.util.stream.Collectors; + + +/** + * Created by pingao on 2018/8/3. + */ +public class FileUtils { + private static final Logger LOGGER = LoggerFactory.getLogger(FileUtils.class); + + private FileUtils() { + } + + public static String readAsString(String path) { + try { + return Files.lines(Paths.get(path), Charset.forName("UTF-8")).collect(Collectors.joining("\n")); + } catch (Exception e) { + LOGGER.error("Error occurs on reading content of {}", path, e); + } + return ""; + } + + public static byte[] readAllBytes(String path) { + try { + return Files.readAllBytes(Paths.get(path)); + } catch (IOException e) { + LOGGER.error("Error occurs on reading byte of {}", path, e); + } + return new byte[0]; + } + + public static byte[] getBytes(String string) { + try { + return string.getBytes("UTF-8"); + } catch (UnsupportedEncodingException e) { + LOGGER.error("Error occurs on get bytes of {}", string, e); + } + return new byte[0]; + } +} diff --git a/src/main/java/com/pingao/utils/HtmlUtils.java b/src/main/java/com/pingao/utils/HtmlUtils.java new file mode 100644 index 0000000..bd02ee5 --- /dev/null +++ b/src/main/java/com/pingao/utils/HtmlUtils.java @@ -0,0 +1,208 @@ +package com.pingao.utils; + +import com.pingao.enums.MiMeType; +import com.pingao.model.YAMLSpan; +import io.netty.handler.codec.http.FullHttpRequest; +import io.netty.handler.codec.http.HttpMethod; +import io.netty.handler.codec.http.QueryStringDecoder; +import io.netty.handler.codec.http.multipart.Attribute; +import io.netty.handler.codec.http.multipart.HttpPostRequestDecoder; +import io.netty.handler.codec.http.multipart.InterfaceHttpData; +import org.commonmark.Extension; +import org.commonmark.ext.gfm.tables.TablesExtension; +import org.commonmark.node.Node; +import org.commonmark.parser.Parser; +import org.commonmark.renderer.html.HtmlRenderer; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.util.*; + + +/** + * Created by pingao on 2018/7/13. + */ +public class HtmlUtils { + private static final Logger LOGGER = LoggerFactory.getLogger(HtmlUtils.class); + + private static final List EXTENSIONS = + Collections.singletonList(TablesExtension.create()); + private static final Parser PARSER = Parser.builder().extensions(EXTENSIONS).build(); + private static final HtmlRenderer RENDERER = HtmlRenderer.builder().extensions(EXTENSIONS).build(); + + private static final String MARKER = "_markdown_preview_sync_bottom_marker"; + + private static final String MARKER_HTML = ""; + + private HtmlUtils() { + } + + public static Map getParameters(FullHttpRequest request) { + Map paramMap = new HashMap<>(); + + HttpMethod method = request.method(); + + if (HttpMethod.GET == method) { + QueryStringDecoder decoder = new QueryStringDecoder(request.uri()); + decoder.parameters().forEach((key, value) -> paramMap.put(key, value.get(0))); + } else if (HttpMethod.POST == method) { + HttpPostRequestDecoder decoder = new HttpPostRequestDecoder(request); + decoder.offer(request); + + List params = decoder.getBodyHttpDatas(); + + for (InterfaceHttpData param : params) { + Attribute data = (Attribute) param; + try { + paramMap.put(data.getName(), data.getValue()); + } catch (IOException e) { + e.printStackTrace(); + } + } + + decoder.destroy(); + // + } else { + throw new IllegalStateException(); + } + + return paramMap; + } + + public static String getRequestPath(String uri) { + return uri.contains("?") ? uri.substring(0, uri.indexOf('?')) : uri; + } + + public static MiMeType getMiMeTypeByPath(String path) { + if (path.endsWith(".js")) { + return MiMeType.JAVA_SCRIPT; + } else if (path.endsWith(".css")) { + return MiMeType.CSS; + } else if (path.endsWith(".jpg")) { + return MiMeType.JPEG; + } else if (path.endsWith(".png")) { + return MiMeType.PNG; + } else { + return MiMeType.PLAIN; + } + } + + public static String markdown2Html(String markdown) { + Node document = PARSER.parse(markdown); + String html = RENDERER.render(document); + int index = html.indexOf(MARKER); + if (index >= 0) { + return html.substring(0, index) + MARKER_HTML + html.substring(index + MARKER.length()); + } else { + return html; + } + } + + public static String plugBottomMarker(String markdown, int bottom) { + YAMLSpan span = scanYAML(markdown); + if (bottom <= span.getEndRow()) { + bottom = span.getEndRow() + 1; + } + + int nu = 0; + String line; + for (int i = 0, start = 0; i < markdown.length(); i++) { + if (i == markdown.length() - 1) { + if (markdown.charAt(i) == '\n') { + line = markdown.substring(start, i); + } else { + line = markdown.substring(start, i + 1); + } + + nu++; + + return markdown.substring(span.getEndInd() + 1) + (isCommentOrBlock(line) ? '\n' + MARKER : MARKER); + // + } else { + if (markdown.charAt(i) == '\n') { + if (start == i) { + line = ""; + } else { + line = markdown.substring(start, i); + } + + start = i + 1; + + nu++; + + if (nu == bottom) { + if ("".equals(line.trim()) || isCommentOrBlock(line)) { + bottom++; + } else { + return markdown.substring(span.getEndInd() + 1, i) + MARKER + markdown.substring(i); + } + } + } + } + } + + return markdown; + } + + private static YAMLSpan scanYAML(String markdown) { + YAMLSpan range = new YAMLSpan(); + int count = 0; + int row = 0; + if (markdown.startsWith("---\n")) { + row++; + for (int i = 4; i < markdown.length(); i++) { + if (markdown.charAt(i) == '-') { + count++; + } else if (markdown.charAt(i) == '\n') { + row++; + + if (count == 3) { + range.setEndInd(i); + range.setEndRow(row); + return range; + } + } else { + if (count > 0) { + count = 0; + } + } + } + } + + return range; + } + + public static List split2Lines(String content) { + List lines = new ArrayList<>(); + for (int i = 0, start = 0; i < content.length(); i++) { + if (i == content.length() - 1) { + if (content.charAt(i) == '\n') { + lines.add(content.substring(start, i)); + } else { + lines.add(content.substring(start, i + 1)); + } + // + } else { + if (content.charAt(i) == '\n') { + if (start == i) { + lines.add(""); + } else { + lines.add(content.substring(start, i)); + } + + start = i + 1; + } + } + } + return lines; + } + + private static boolean isCommentOrBlock(String line) { + String l = line.trim(); + return l.startsWith("/g,"")}catch(k){if(!k.restart){throw k}return MathJax.Callback.After(["HandleMML",this,l],k.restart)}n.setAttribute("data-mathml",i);j=f.addElement(n,"span",{isMathJax:true,unselectable:"on",className:"MJX_Assistive_MathML"+(h.root.Get("display")==="block"?" 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"License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +(function(d,h,l,g,m,b,j){var p="2.7.4";var i=MathJax.Extension;var c=i.MathEvents={version:p};var k=d.config.menuSettings;var o={hover:500,frame:{x:3.5,y:5,bwidth:1,bcolor:"#A6D",hwidth:"15px",hcolor:"#83A"},button:{x:-6,y:-3,wx:-2},fadeinInc:0.2,fadeoutInc:0.05,fadeDelay:50,fadeoutStart:400,fadeoutDelay:15*1000,styles:{".MathJax_Hover_Frame":{"border-radius":".25em","-webkit-border-radius":".25em","-moz-border-radius":".25em","-khtml-border-radius":".25em","box-shadow":"0px 0px 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