{"id":480,"date":"2022-03-12T22:34:12","date_gmt":"2022-03-12T14:34:12","guid":{"rendered":"https:\/\/www.fanyamin.com\/wordpress\/?p=480"},"modified":"2022-03-15T10:31:58","modified_gmt":"2022-03-15T02:31:58","slug":"webrtc-peer-connection-example-server","status":"publish","type":"post","link":"https:\/\/www.fanyamin.com\/wordpress\/?p=480","title":{"rendered":"WebRTC Peer Connection Example &#8211; Server"},"content":{"rendered":"<h1>Overview<\/h1>\n<ol>\n<li>\n<p>\u542f\u52a8\u4e86\u4e00\u4e2a peerconnection server\uff0c\u4e5f\u5c31\u662f\u4e00\u4e2a\u7b80\u5355\u7684 web server \u7528\u6765\u5728\u4e24\u4e2a client \u4e4b\u95f4\u4ea4\u6362\u4fe1\u4ee4\uff0c\u6bd4\u5982 SDP, ICE candidate<\/p>\n<\/li>\n<li>\n<p>\u542f\u52a8\u4e86\u4e24\u4e2a peerconnection client,  \u76f4\u63a5\u8fde\u63a5\u8fdb\u884c\u97f3\u9891\u548c\u89c6\u9891\u5a92\u4f53\u6570\u636e\u7684\u4f20\u8f93<\/p>\n<\/li>\n<\/ol>\n<p><img decoding=\"async\" src=\"https:\/\/www.fanyamin.com\/wordpress\/wp-content\/uploads\/2022\/03\/image-1647074902598.png\" alt=\"\" \/><\/p>\n<h1>Windows peerconnection example<\/h1>\n<h2>peerconnection server<\/h2>\n<ul>\n<li>server \u6bd4\u8f83\u7b80\u5355\uff0c\u542f\u52a8\u4e00\u4e2a HTTP server, \u63a5\u53d7 client \u7684\u8fde\u63a5\uff0c \u5c06\u63a5\u6536\u7684\u6570\u636e\u5728 client \u4e4b\u95f4\u8fdb\u884c\u4ea4\u6362<\/li>\n<\/ul>\n<p>\u4e24\u4e2a client \u90fd\u8fde\u63a5\u5230 server \u4e0a\uff0c \u53d1\u9001 HTTP \u8bf7\u6c42 \/sign<em>in \uff0c server \u628a\u5b83\u4f5c\u4e3a\u4e00\u4e2a\u6210\u5458(ChannelMember)\u52a0\u5230\u5185\u5b58\u4e2d\u7684\u6210\u5458\u5217\u8868\u4e2d(PeerChannel.members<\/em>)<\/p>\n<p>\u8fd9\u91cc\u6709\u4e00\u4e2a\u8e69\u811a\u7684\u8bbe\u8ba1\uff0c \u7531\u4e8e server \u63d0\u4f9b\u7684\u662f Http \u670d\u52a1\uff0c\u5b83\u4e0d\u4f1a\u4e3b\u52a8\u53d1\u8d77\u8bf7\u6c42\u5230 client<br \/>\n\u603b\u662f\u7b49 client \u6765\u8981\u6570\u636e(\/wait)\uff0cserver \u53d1\u73b0\u6709\u6d88\u606f\u7f13\u5b58\u5728\u5185\u90e8\u961f\u5217(ChannelMember.queue_)\u4e2d\uff0c\u5b83\u624d\u628a\u6d88\u606f\u4ee5 HTTP \u54cd\u5e94\u544a\u8bc9 client.<\/p>\n<p>\u5982\u679c\u4f7f\u7528\u7684\u662f\u53cc\u5411\u7684 websocket \u534f\u8bae\uff0c\u5c31\u6ca1\u8fd9\u4e48\u9ebb\u70e6\u4e86\uff0c\u5f53\u7136\u8fd9\u53ea\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u600e\u4e48\u7b80\u5355\u600e\u4e48\u6765\u3002<\/p>\n<p>\uff0a\u542f\u52a8\u547d\u4ee4:<\/p>\n<pre><code>C:\\webrtc-checkout\\src\\out\\Default\\peerconnection_server.exe --port=8888<\/code><\/pre>\n<table>\n<thead>\n<tr>\n<th>class<\/th>\n<th>responsibility<\/th>\n<th>collaborators<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>ListeningSocket<\/td>\n<td>\u4fa6\u542c\u7aef\u53e3\u5e76\u63a5\u53d7\u65b0\u7684\u8fde\u63a5<\/td>\n<td>DataSocket<\/td>\n<\/tr>\n<tr>\n<td>DataSocket<\/td>\n<td>\u4ee3\u8868\u4e00\u4e2a HTTP\u3000\u8fde\u63a5\u3000<\/td>\n<td>\u3000ListeningSocket<\/td>\n<\/tr>\n<tr>\n<td>ChannelMember<\/td>\n<td>\u4ee3\u8868\u4e00\u4e2a\u8fde\u63a5\u5230 server \u4e0a\u7684\u4e00\u4e2a\u7aef\u70b9<\/td>\n<td>DataSocket<\/td>\n<\/tr>\n<tr>\n<td>PeerChannel<\/td>\n<td>\u4ee3\u8868\u4e00\u4e2a\u4f20\u8f93\u901a\u9053\uff0c\u4f9b\u5176\u4e2d\u7684\u6210\u5458\u4e4b\u95f4\u7684\u901a\u4fe1<\/td>\n<td>ChannelMember<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>peerconnection client<\/h2>\n<p>client \u76f8\u5bf9\u9ebb\u70e6\u4e00\u4e9b\uff0c\u65e2\u8981\u901a\u8fc7 server \u5f7c\u6b64\u4e4b\u95f4\u4ea4\u6362\u4fe1\u4ee4\uff08sdp, candidate\uff09, \u8fd8\u8981\u83b7\u53d6\u672c\u5730\u7684\u97f3\u89c6\u9891\u5a92\u4f53\u6d41\uff0c\u53d1\u9001\u5230\u5bf9\u7aef\uff0c\u63a5\u6536\u8fdc\u7aef\u4f20\u6765\u7684\u5a92\u4f53\u6d41\uff0c\u5728\u672c\u5730\u56de\u653e\u3002<\/p>\n<ul>\n<li>\u800c\u4e14 client \u8fd8\u8981\u5904\u7406 GUI \u4e0a\u4e0e\u7528\u6237\u7684\u4ea4\u4e92<\/li>\n<\/ul>\n<p>\uff0a\u542f\u52a8\u547d\u4ee4<\/p>\n<pre><code>C:\\webrtc-checkout\\src\\out\\Default\\peerconnection_client.exe --autoconnect<\/code><\/pre>\n<h1>Main Flow<\/h1>\n<pre><code class=\"language-mermaid\">sequenceDiagram\nparticipant alice\nparticipant server\nparticipant bob\nalice-&gt;&gt;server: sign in\nserver--&gt;&gt;alice: alice&#039;s id\nbob-&gt;&gt;server: sign in\nserver--&gt;&gt;bob: bob&#039;s id, alice&#039;s name, id\nalice-&gt;&gt;server: wait\nserver--&gt;&gt;alice: bob&#039;s name, id\nalice-&gt;&gt;server: offer(sdp)\nserver--&gt;&gt;alice: ok\nbob-&gt;&gt;server: wait\nserver--&gt;&gt;bob: offer(sdp)\nbob-&gt;&gt;server: answer(sdp)\nserver--&gt;&gt;bob: ok\nalice-&gt;&gt;server: wait\nserver--&gt;&gt;alice: answer(sdp)\nalice-&gt;&gt;server: candidate\nserver--&gt;&gt;alice: ok\nbob-&gt;&gt;server: candidate\nserver--&gt;&gt;bob: ok\nalice-&gt;&gt;server: wait\nserver--&gt;&gt;alice: bob&#039;s candidate\nbob-&gt;&gt;server: wait\nserver--&gt;&gt;bob: alice&#039;s candidate\nalice-&gt;&gt;server: sign_out\nserver--&gt;&gt;alice:ok\nbob-&gt;&gt;server: sign out\nserver--&gt;&gt;bob: ok<\/code><\/pre>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u7684\u4fe1\u4ee4\u4ea4\u4e92\uff0c Alice \u548c Bob \u4ea4\u6362\u4e86\u5f7c\u6b64\u7684 SDP \u548c Candidate, \u8fd9\u6837\u5c31\u53ef\u4ee5\u642d\u5efa PeerConnection\uff0c\u4ee5 RTP \u6765\u4f20\u8f93\u5f7c\u6b64\u7684\u97f3\u89c6\u9891\u6570\u636e\u4e86 <\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.fanyamin.com\/wordpress\/wp-content\/uploads\/2022\/03\/image-1647136621869.png\" alt=\"\" \/><\/p>\n<pre><code>participant main\nparticipant ListeningSocket as ls\nparticipant DataSocket as s\nparticipant PeerChannel as clients\nparticipant ChanndleMember as member\n\nmain-&gt;ls: Create()\nmain-&gt;ls: Listen(port)\nmain-&gt;clients: create\nmain-&gt;main: select\nmain-&gt;s: OnDataAvailable()\nmain-&gt;clients: lookup(socket)\nalt IsPeeerConnection(s)\n\n    alt !member\n       main-&gt;clients: AddMember(s)\n       clients-&gt;member: new\n       clients-&gt;clients: BroadcastChangedState(...)\n       clients-&gt;clients: HandleDeliveryFailures(...)\n\n    else\n       main-&gt;clients:IsTargetedRequest(s)\n       alt it is target\n         main-&gt;member: ForwardRequestToPeer(s, target)\n         member-&gt;member: QueueResponse(...)\n       else\n         main-&gt;s: Send(200 | 500)\n       end\n    end<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Overview \u542f\u52a8\u4e86\u4e00\u4e2a peerconnection server\uff0c\u4e5f\u5c31\u662f\u4e00\u4e2a\u7b80\u5355\u7684 web server \u7528\u6765\u5728\u4e24\u4e2a client \u4e4b\u95f4\u4ea4\u6362\u4fe1\u4ee4\uff0c\u6bd4\u5982 SDP, ICE candidate \u542f\u52a8\u4e86\u4e24\u4e2a peerconnection client, \u76f4\u63a5\u8fde\u63a5\u8fdb\u884c\u97f3\u9891\u548c\u89c6\u9891\u5a92\u4f53\u6570\u636e\u7684\u4f20\u8f93 Windows peerconnection example peerconnection server server \u6bd4\u8f83\u7b80\u5355\uff0c\u542f\u52a8\u4e00\u4e2a HTTP server, \u63a5\u53d7 client \u7684\u8fde\u63a5\uff0c \u5c06\u63a5\u6536\u7684\u6570\u636e\u5728 client \u4e4b\u95f4\u8fdb\u884c\u4ea4\u6362 \u4e24\u4e2a client \u90fd\u8fde\u63a5\u5230 server \u4e0a\uff0c \u53d1\u9001 HTTP \u8bf7\u6c42 \/signin \uff0c server \u628a\u5b83\u4f5c\u4e3a\u4e00\u4e2a\u6210\u5458(ChannelMember)\u52a0\u5230\u5185\u5b58\u4e2d\u7684\u6210\u5458\u5217\u8868\u4e2d(PeerChannel.members) \u8fd9\u91cc\u6709\u4e00\u4e2a\u8e69\u811a\u7684\u8bbe\u8ba1\uff0c \u7531\u4e8e server \u63d0\u4f9b\u7684\u662f Http \u670d\u52a1\uff0c\u5b83\u4e0d\u4f1a\u4e3b\u52a8\u53d1\u8d77\u8bf7\u6c42\u5230 client \u603b\u662f\u7b49 client \u6765\u8981\u6570\u636e(\/wait)\uff0cserver \u53d1\u73b0\u6709\u6d88\u606f\u7f13\u5b58\u5728\u5185\u90e8\u961f\u5217(ChannelMember.queue_)\u4e2d\uff0c\u5b83\u624d\u628a\u6d88\u606f\u4ee5 HTTP [&hellip;] <a class=\"read-more\" href=\"https:\/\/www.fanyamin.com\/wordpress\/?p=480\" title=\"Permanent Link to: WebRTC Peer Connection Example &#8211; Server\">&rarr;Read&nbsp;more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-480","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/480"}],"collection":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=480"}],"version-history":[{"count":28,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/480\/revisions"}],"predecessor-version":[{"id":606,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/480\/revisions\/606"}],"wp:attachment":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=480"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=480"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=480"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}