Add terminal web browser support from Hatsuharu

app.py

@@ -2,6 +2,9 @@ import asyncio
 import aiotieba
 import uvicorn
 
+import re
+import textwrap
+
 from aioflask import render_template, request, escape
 from urllib.parse import quote_plus
 from datetime import datetime
@@ -33,6 +36,25 @@ async def cache_name_from_id(c, i):
 def normalize_utf8(s):
     return s.encode('unicode_escape').decode('ascii').replace('\\', '')
 
+# Render the template with compatibility detection.
+def render_template_c(tmpl, **kwargs):
+    text_browsers = ['w3m', 'Lynx', 'ELinks', 'Links', 'URL/Emacs', 'Emacs']
+    ua = request.headers.get('User-Agent')
+
+    for text_ua in text_browsers:
+        if ua.startswith(text_ua):
+            return render_template(f'{tmpl}.text', **kwargs)
+    return render_template(tmpl, **kwargs)
+
+# Wrap the text to the given width.
+def wrap_text(i, width=70, join='\n', rws=False):
+    i = str(i)
+    def add_whitespace_to_chinese(match):
+        return '\uFFFD' + match.group(0)
+    pattern = r'[\u4e00-\u9fff\uFF00-\uFFEF]'
+    aft = re.sub(pattern, add_whitespace_to_chinese, i)
+    return join.join(textwrap.wrap(aft, width=width, replace_whitespace=rws)).replace('\uFFFD', '')
+
 ######################################################################
 
 # Convert a timestamp to its simpliest readable date format.
@@ -63,6 +85,15 @@ def _jinja2_filter_intsep(i):
 def _jinja2_filter_trim(text):
     return text[:78] + '……' if len(text) > 78 else text
 
+# Format comments to its equiviant text HTML.
+@app.template_filter('tcomments')
+async def _jinja2_filter_tcomments(coms):
+    buf = ' | '
+    for com in coms:
+        buf += wrap_text(f'{ com.user.show_name }：{ com.text }', width=60, join="\n | ")
+        buf += '\n \---\n | '
+    return buf[:-4]
+
 # Format fragments to its equiviant HTML.
 @app.template_filter('translate')
 async def _jinja2_filter_translate(frags, reply_id=0):
@@ -105,6 +136,10 @@ async def _jinja2_filter_translate(frags, reply_id=0):
 
     return htmlfmt
 
+@app.template_filter('twrap')
+async def _jinja2_filter_translate(text, width=70, join='\n', rws=False):
+    return wrap_text(text, width, join, rws)
+
 ######################################################################
 
 @app.route('/p/<tid>')
@@ -134,7 +169,7 @@ async def thread_view(tid):
         
         await asyncio.gather(*(cache_name_from_id(tieba, i) for i in all_users))
     
-    return await render_template('thread.html', info=thread_info, ao=ao)
+    return await render_template_c('thread.html', info=thread_info, ao=ao)
 
 @app.route('/f')
 async def forum_view():
@@ -156,10 +191,10 @@ async def forum_view():
                            'member': forum_info.member_num, 'desc': '贴吧描述暂不可用', 'name': forum_info.fname }
         
         if threads.page.current_page > threads.page.total_page or pn < 1:
-            return await render_template('error.html', msg = \
+            return await render_template_c('error.html', msg = \
                                          f'请求越界，本贴吧共有 { threads.page.total_page } 页'
                                          f'而您查询了第 { threads.page.current_page} 页')
-    return await render_template('bar.html', info=forum_info, threads=threads, sort=sort,
+    return await render_template_c('bar.html', info=forum_info, threads=threads, sort=sort,
                                  tp = ((115 if threads.page.total_page > 115 else threads.page.total_page) if sort == 0 else threads.page.total_page))
 
 @app.route('/home/main')
@@ -175,28 +210,28 @@ async def user_view():
         try:
             hp = await tieba.get_homepage(i, pn)
         except ValueError:
-            return await render_template('error.html', msg='您已超过最后页')
+            return await render_template_c('error.html', msg='您已超过最后页')
 
     if len(hp[1]) == 0 and pn > 1:
-        return await render_template('error.html', msg='您已超过最后页')
+        return await render_template_c('error.html', msg='您已超过最后页')
     
-    return await render_template('user.html', hp=hp, pn=pn)
+    return await render_template_c('user.html', hp=hp, pn=pn)
 
 @app.route('/')
 async def main_view():
-    return await render_template('index.html')
+    return await render_template_c('index.html')
 
 ######################################################################
 
 @app.errorhandler(RuntimeError)
 async def runtime_error_view(e):
     if hasattr(e, 'msg'):
-        return await render_template('error.html', msg=e.msg)
+        return await render_template_c('error.html', msg=e.msg)
-    return await render_template('error.html', msg='错误信息不可用')
+    return await render_template_c('error.html', msg='错误信息不可用')
 
 @app.errorhandler(Exception)
 async def general_error_view(e):
-    return await render_template('error.html', msg=e)
+    return await render_template_c('error.html', msg=e)
 
 ######################################################################
 

templates/bar.html.text

@@ -0,0 +1,54 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<title>{{ info['name'] }}吧 - RAT</title>
+	</head>
+  <body>
+	<pre>
+------------------------------------------------------------------------
+    欢迎来到{{info['name']}}吧！ {{info['desc']}}
+        关注 {{ info['member']|intsep }} 主题 {{ info['topic']|intsep }} 帖子 {{ info['thread']|intsep }}
+------------------------------------------------------------------------
+
+         <a {% if sort == 0 %} class="current-sel" {% endif %} href="/f?kw={{ info['name'] }}&pn={{ threads.page.current_page }}&sort=0">[时下热门]</a>         <a {% if sort == 5 %} class="current-sel" {% endif %} href="/f?kw={{ info['name'] }}&sort=5">[最新回复]</a>         <a {% if sort == 1 %} class="current-sel" {% endif %} href="/f?kw={{ info['name'] }}&sort=1">[最新发布]</a></pre>
+	{% for t in threads %}
+	<pre>----- {{ '%4s'|format(t.reply_num) }} {{ '/置顶/ ' if t.is_top or t.is_livepost else '' }}{{ '/精/ ' if t.is_good else '' }}
++ 发帖人：{{ t.user.show_name }}
++ 最近回复时间： {{ t.last_time|date }}
+
+<a href="/p/{{ t.tid }}">{{ t.title if t.title else t.text|twrap }}</a>
+{% if t.title %}
+{{ t.text[(t.title|length)+1:]|twrap(rws=True) }}{% endif %}</pre>
+	{% endfor %}
+	<pre>
+------------------------------------------------------------------------
+	</pre>
+    <a href="/f?kw={{ info['name'] }}&sort={{ sort }}">首页</a> |
+	
+	{% for i in range(5) %}
+    {% set np = threads.page.current_page - 5 + i %}
+    {% if np > 0 %}
+    <a href="/f?kw={{ info['name'] }}&pn={{ np }}&sort={{ sort }}">{{ np }}</a> |
+    {% endif %}
+    {% endfor %}
+
+	<strong>{{ threads.page.current_page }}</strong> |
+
+    {% for i in range(5) %}
+    {% set np = threads.page.current_page + 1 + i %}
+    {% if np <= tp %}
+    <a href="/f?kw={{ info['name'] }}&pn={{ np }}&sort={{ sort }}">{{ np }}</a> |
+    {% endif %}
+    {% endfor %}
+	
+    <a href="/f?kw={{ info['name'] }}&pn={{ tp }}&sort={{ sort }}">尾页</a>
+	<pre>
+------------------------------------------------------------------------
+      <a href="/">RAT Ain't Tieba</a>       <a href="https://0xacab.org/johnxina/rat/-/raw/no-masters/LICENSE">自豪地以 AGPLv3 释出</a>       <a href="https://0xacab.org/johnxina/rat">源代码</a>
+------------------------------------------------------------------------
+	</pre>
+  </body>
+</html>

templates/error.html.text

@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<title>错误 - RAT</title>
+	</head>
+  <body>
+	<pre>
+------------------------------------------------------------------------
+      Guru Meditation                 c'est la vie
+------------------------------------------------------------------------
+
+  　██░▀██████████████▀░██
+　　█▌▒▒░████████████░▒▒▐█
+　　█░▒▒▒░██████████░▒▒▒░█
+　　▌░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░▐
+　　░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░
+　 ███▀▀▀██▄▒▒▒▒▒▒▒▄██▀▀▀██
+　 ██░░░▐█░▀█▒▒▒▒▒█▀░█▌░░░█
+　 ▐▌░░░▐▄▌░▐▌▒▒▒▐▌░▐▄▌░░▐▌
+　　█░░░▐█▌░░▌▒▒▒▐░░▐█▌░░█
+　　▒▀▄▄▄█▄▄▄▌░▄░▐▄▄▄█▄▄▀▒
+　　░░░░░░░░░░└┴┘░░░░░░░░░
+　　██▄▄░░░░░░░░░░░░░░▄▄██
+　　████████▒▒▒▒▒▒████████
+　　█▀░░███▒▒░░▒░░▒▀██████
+　　█▒░███▒▒╖░░╥░░╓▒▐█████
+　　█▒░▀▀▀░░║░░║░░║░░█████
+　　██▄▄▄▄▀▀┴┴╚╧╧╝╧╧╝┴┴███
+　　██████████████████████`
+
+Cat says, * {{ msg|twrap }} *.
+
+------------------------------------------------------------------------
+      <a href="/">RAT Ain't Tieba</a>       <a href="https://0xacab.org/johnxina/rat/-/blob/no-masters/LICENSE">自豪地以 AGPLv3 释出</a>       <a href="https://0xacab.org/johnxina/rat">源代码</a>
+------------------------------------------------------------------------
+	</pre>
+  </body>
+</html>

templates/index.html.text

@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<title>首页 - RAT</title>
+	</head>
+  <body>
+	<pre>
+------------------------------------------------------------------------
+      欢迎来到 RAT！ RAT Ain't Tieba 是一款自由的百度贴吧前端。
+------------------------------------------------------------------------
+
+______  ___ _____    ___  _       _ _     _____ _      _           
+| ___ \/ _ |_   _|  / _ \(_)     ( | |   |_   _(_)    | |          
+| |_/ / /_\ \| |   / /_\ \_ _ __ |/| |_    | |  _  ___| |__   __ _ 
+|    /|  _  || |   |  _  | | '_ \  | __|   | | | |/ _ | '_ \ / _` |
+| |\ \| | | || |   | | | | | | | | | |_    | | | |  __| |_) | (_| |
+\_| \_\_| |_/\_/   \_| |_|_|_| |_|  \__|   \_/ |_|\___|_.__/ \__,_|
+                                                                   
+
+您正在查看的是为终端浏览器优化过的前端页面。如果您认为您的浏览器不应该
+使用此页面，请于下方报告缺陷。如果您的终端浏览器不能很好地处理页面，您
+也可以报告缺陷。此前端页面由 *初春トワ* 打造，祝您有个愉快网上冲浪体验。
+
+RAT Ain't Tieba 是以 AGPLv3 分发的自由软件，它尊重您的自由。更多关于
+自由软件运动的内容，请见 <a href="https://writefreesoftware.org">writefreesoftware</a> 与 <a href="https://gnu.org">GNU</a>。
+
+  源代码  ：<a href="https://0xacab.org/johnxina/rat">0xacab（对文本浏览器不友好）</a>
+源代码仓库：https://0xacab.org/johnxina/rat.git
+缺陷追踪器：<a href="https://0xacab.org/johnxina/rat/-/issues">0xacab（对文本浏览器不友好）</a>
+
+当然，您也可以使用电子邮件报告缺陷：<a href="mailto:bingchilling@riseup.net">bingchilling@riseup.net</a>。
+	</pre>
+	
+	<form action="/f" method="get">
+		  <label for="kw">进入贴吧：</label>
+		  <input type="text" name="kw" required />
+	</form>
+
+	<pre>
+
+------------------------------------------------------------------------
+      <a href="/">RAT Ain't Tieba</a>       <a href="https://0xacab.org/johnxina/rat/-/raw/no-masters/LICENSE">自豪地以 AGPLv3 释出</a>       <a href="https://0xacab.org/johnxina/rat">源代码</a>
+------------------------------------------------------------------------
+	</pre>
+  </body>
+</html>

templates/thread.html.text

@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<title>{{ info.thread.title }} - {{ info.thread.fname }}吧 - RAT</title>
+	</head>
+  <body>
+	<pre>
+------------------------------------------------------------------------
+<a href="/f?kw={{ info.forum.fname }}">[{{ info.forum.fname }}吧]</a> {{ info.thread.title|twrap(width=60) }}
+------------------------------------------------------------------------
+
+               <a {% if not ao %} class="current-sel" {% endif %} href="/p/{{ info.thread.tid }}?ao=0">[全部回复]</a>         <a {% if ao %} class="current-sel" {% endif %} href="/p/{{ info.thread.tid }}?ao=1">[仅看楼主]</a></pre>
+	{% for p in info %}
+	<pre>
+<a href="#{{ p.floor }}">#{{ p.floor }}</a> | <a href="/home/main?id={{ p.user.user_id }}">{{ p.user.show_name }}</a>：
+
+{{ p.text|twrap(rws=True) }}
+{% if p.comments %}{{ '\n' + p.comments|tcomments }}{% endif %}</pre>
+	{% endfor %}
+	<pre>------------------------------------------------------------------------</pre>
+    <a href="/p/{{ info.thread.tid }}&ao={{ao}}">首页</a> |
+
+    {% for i in range(5) %}
+    {% set np = info.page.current_page - 5 + i %}
+    {% if np > 0 %}
+    <a href="/p/{{ info.thread.tid }}?pn={{ np }}&ao={{ao}}">{{ np }}</a> |
+    {% endif %}
+    {% endfor %}
+
+    <strong>{{ info.page.current_page }}</strong> |
+    
+    {% for i in range(5) %}
+    {% set np = info.page.current_page + 1 + i %}
+    {% if np <= info.page.total_page %}
+    <a href="/p/{{ info.thread.tid }}?pn={{ np }}&ao={{ao}}">{{ np }}</a> |
+    {% endif %}
+    {% endfor %}
+
+    <a href="/p/{{ info.thread.tid }}?pn={{ info.page.total_page }}&ao={{ao}}">尾页</a>
+	<pre>
+------------------------------------------------------------------------
+      <a href="/">RAT Ain't Tieba</a>       <a href="https://0xacab.org/johnxina/rat/-/raw/no-masters/LICENSE">自豪地以 AGPLv3 释出</a>       <a href="https://0xacab.org/johnxina/rat">源代码</a>
+------------------------------------------------------------------------
+	</pre>
+  </body>
+</html>

templates/user.html.text

@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<title>{{ hp[0].show_name }}的个人资料 - RAT</title>
+	</head>
+  <body>
+	<pre>
+------------------------------------------------------------------------
+    {{ hp[0].show_name }} ({{ hp[0].user_name }})
+        关注 {{ hp[0].follow_num|intsep}} 粉丝 {{ hp[0].fan_num|intsep }} 发帖 {{ hp[0].post_num|intsep }} 关注贴吧 {{ hp[0].forum_num|intsep }}
+------------------------------------------------------------------------</pre>
+	{% for t in hp[1] %}
+	<pre><a href="/p/{{ t.tid }}">{{ t.text|twrap(rws=True) }}</a></pre>
+	{% endfor %}
+	<pre>------------------------------------------------------------------------</pre>
+    <a href="/home/main?id={{ hp[0].user_id }}&pn={{ 1 }}">首页</a> | 
+    
+    {% for i in range(5) %}
+    {% set np = pn - 5 + i %}
+    {% if np > 0 %}
+    <a href="/home/main?id={{ hp[0].user_id }}&pn={{ np }}">{{ np }}</a> | 
+    {% endif %}
+    {% endfor %}
+    
+    <strong>{{ pn }}</strong> |
+	
+    <a href="/home/main?id={{ hp[0].user_id }}&pn={{ pn+1 }}">下一页</a>
+	<pre>
+------------------------------------------------------------------------
+      <a href="/">RAT Ain't Tieba</a>       <a href="https://0xacab.org/johnxina/rat/-/raw/no-masters/LICENSE">自豪地以 AGPLv3 释出</a>       <a href="https://0xacab.org/johnxina/rat">源代码</a>
+------------------------------------------------------------------------
+	</pre>
+  </body>
+</html>