text-generation-webui/modules/html_generator.py

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import html
import os
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import re
import time
import functools
from pathlib import Path
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import markdown
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from PIL import Image, ImageOps
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from modules import shared
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from modules.utils import get_available_chat_styles
# This is to store the paths to the thumbnails of the profile pictures
image_cache = {}
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with open(Path(__file__).resolve().parent / '../css/html_readable_style.css', 'r') as f:
readable_css = f.read()
with open(Path(__file__).resolve().parent / '../css/html_4chan_style.css', 'r') as css_f:
_4chan_css = css_f.read()
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with open(Path(__file__).resolve().parent / '../css/html_instruct_style.css', 'r') as f:
instruct_css = f.read()
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# Custom chat styles
chat_styles = {}
for k in get_available_chat_styles():
chat_styles[k] = open(Path(f'css/chat_style-{k}.css'), 'r').read()
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# Handle styles that derive from other styles
for k in chat_styles:
lines = chat_styles[k].split('\n')
input_string = lines[0]
match = re.search(r'chat_style-([a-z\-]*)\.css', input_string)
if match:
style = match.group(1)
chat_styles[k] = chat_styles.get(style, '') + '\n\n' + '\n'.join(lines[1:])
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def fix_newlines(string):
string = string.replace('\n', '\n\n')
string = re.sub(r"\n{3,}", "\n\n", string)
string = string.strip()
return string
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def replace_blockquote(m):
return m.group().replace('\n', '\n> ').replace('\\begin{blockquote}', '').replace('\\end{blockquote}', '')
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@functools.lru_cache(maxsize=4096)
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def convert_to_markdown(string):
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# Blockquote
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string = re.sub(r'(^|[\n])>', r'\1>', string)
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pattern = re.compile(r'\\begin{blockquote}(.*?)\\end{blockquote}', re.DOTALL)
string = pattern.sub(replace_blockquote, string)
# Code
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string = string.replace('\\begin{code}', '```')
string = string.replace('\\end{code}', '```')
string = re.sub(r"(.)```", r"\1\n```", string)
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result = ''
is_code = False
for line in string.split('\n'):
if line.lstrip(' ').startswith('```'):
is_code = not is_code
result += line
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if is_code or line.startswith('|'): # Don't add an extra \n for tables or code
result += '\n'
else:
result += '\n\n'
result = result.strip()
if is_code:
result += '\n```' # Unfinished code block
# Unfinished list, like "\n1.". A |delete| string is added and then
# removed to force a <ol> or <ul> to be generated instead of a <p>.
if re.search(r'(\n\d+\.?|\n\*\s*)$', result):
delete_str = '|delete|'
if re.search(r'(\d+\.?)$', result) and not result.endswith('.'):
result += '.'
result = re.sub(r'(\n\d+\.?|\n\*\s*)$', r'\g<1> ' + delete_str, result)
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html_output = markdown.markdown(result, extensions=['fenced_code', 'tables'])
pos = html_output.rfind(delete_str)
if pos > -1:
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html_output = html_output[:pos] + html_output[pos + len(delete_str):]
else:
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html_output = markdown.markdown(result, extensions=['fenced_code', 'tables'])
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# Unescape code blocks
pattern = re.compile(r'<code[^>]*>(.*?)</code>', re.DOTALL)
html_output = pattern.sub(lambda x: html.unescape(x.group()), html_output)
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return html_output
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def generate_basic_html(string):
string = convert_to_markdown(string)
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string = f'<style>{readable_css}</style><div class="readable-container">{string}</div>'
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return string
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def process_post(post, c):
t = post.split('\n')
number = t[0].split(' ')[1]
if len(t) > 1:
src = '\n'.join(t[1:])
else:
src = ''
src = re.sub('>', '&gt;', src)
src = re.sub('(&gt;&gt;[0-9]*)', '<span class="quote">\\1</span>', src)
src = re.sub('\n', '<br>\n', src)
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src = f'<blockquote class="message_4chan">{src}\n'
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src = f'<span class="name">Anonymous </span> <span class="number">No.{number}</span>\n{src}'
return src
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def generate_4chan_html(f):
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posts = []
post = ''
c = -2
for line in f.splitlines():
line += "\n"
if line == '-----\n':
continue
elif line.startswith('--- '):
c += 1
if post != '':
src = process_post(post, c)
posts.append(src)
post = line
else:
post += line
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if post != '':
src = process_post(post, c)
posts.append(src)
for i in range(len(posts)):
if i == 0:
posts[i] = f'<div class="op">{posts[i]}</div>\n'
else:
posts[i] = f'<div class="reply">{posts[i]}</div>\n'
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output = ''
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output += f'<style>{_4chan_css}</style><div id="parent"><div id="container">'
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for post in posts:
output += post
output += '</div></div>'
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output = output.split('\n')
for i in range(len(output)):
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output[i] = re.sub(r'^(&gt;(.*?)(<br>|</div>))', r'<span class="greentext">\1</span>', output[i])
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output[i] = re.sub(r'^<blockquote class="message_4chan">(&gt;(.*?)(<br>|</div>))', r'<blockquote class="message_4chan"><span class="greentext">\1</span>', output[i])
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output = '\n'.join(output)
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return output
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def make_thumbnail(image):
image = image.resize((350, round(image.size[1] / image.size[0] * 350)), Image.Resampling.LANCZOS)
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if image.size[1] > 470:
image = ImageOps.fit(image, (350, 470), Image.LANCZOS)
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return image
def get_image_cache(path):
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cache_folder = Path(shared.args.disk_cache_dir)
if not cache_folder.exists():
cache_folder.mkdir()
mtime = os.stat(path).st_mtime
if (path in image_cache and mtime != image_cache[path][0]) or (path not in image_cache):
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img = make_thumbnail(Image.open(path))
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old_p = Path(f'{cache_folder}/{path.name}_cache.png')
p = Path(f'{cache_folder}/cache_{path.name}.png')
if old_p.exists():
old_p.rename(p)
output_file = p
img.convert('RGB').save(output_file, format='PNG')
image_cache[path] = [mtime, output_file.as_posix()]
return image_cache[path][1]
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def generate_instruct_html(history):
output = f'<style>{instruct_css}</style><div class="chat" id="chat"><div class="messages">'
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for i, _row in enumerate(history):
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row = [convert_to_markdown(entry) for entry in _row]
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if row[0]: # don't display empty user messages
output += f"""
<div class="user-message">
<div class="text">
<div class="message-body">
{row[0]}
</div>
</div>
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</div>
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"""
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output += f"""
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<div class="assistant-message">
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<div class="text">
<div class="message-body">
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{row[1]}
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</div>
</div>
</div>
"""
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output += "</div></div>"
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return output
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def generate_cai_chat_html(history, name1, name2, style, character, reset_cache=False):
output = f'<style>{chat_styles[style]}</style><div class="chat" id="chat"><div class="messages">'
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# We use ?character and ?time.time() to force the browser to reset caches
img_bot = f'<img src="file/cache/pfp_character_thumb.png?{character}" class="pfp_character">' if Path("cache/pfp_character_thumb.png").exists() else ''
img_me = f'<img src="file/cache/pfp_me.png?{time.time() if reset_cache else ""}">' if Path("cache/pfp_me.png").exists() else ''
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for i, _row in enumerate(history):
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row = [convert_to_markdown(entry) for entry in _row]
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if row[0]: # don't display empty user messages
output += f"""
<div class="message">
<div class="circle-you">
{img_me}
</div>
<div class="text">
<div class="username">
{name1}
</div>
<div class="message-body">
{row[0]}
</div>
</div>
</div>
"""
output += f"""
<div class="message">
<div class="circle-bot">
{img_bot}
</div>
<div class="text">
<div class="username">
{name2}
</div>
<div class="message-body">
{row[1]}
</div>
</div>
</div>
"""
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output += "</div></div>"
return output
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def generate_chat_html(history, name1, name2, reset_cache=False):
output = f'<style>{chat_styles["wpp"]}</style><div class="chat" id="chat"><div class="messages">'
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for i, _row in enumerate(history):
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row = [convert_to_markdown(entry) for entry in _row]
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if row[0]: # don't display empty user messages
output += f"""
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<div class="message">
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<div class="text-you">
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<div class="message-body">
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{row[0]}
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</div>
</div>
</div>
"""
output += f"""
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<div class="message">
<div class="text-bot">
<div class="message-body">
{row[1]}
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</div>
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</div>
</div>
"""
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output += "</div></div>"
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return output
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def chat_html_wrapper(history, name1, name2, mode, style, character, reset_cache=False):
if mode == 'instruct':
return generate_instruct_html(history['visible'])
elif style == 'wpp':
return generate_chat_html(history['visible'], name1, name2)
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else:
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return generate_cai_chat_html(history['visible'], name1, name2, style, character, reset_cache)