import ast import base64 import copy import io import json import logging import re from datetime import datetime from pathlib import Path import yaml from PIL import Image import modules.shared as shared from modules.extensions import apply_extensions from modules.html_generator import chat_html_wrapper, make_thumbnail from modules.text_generation import (encode, generate_reply, get_max_prompt_length) # Replace multiple string pairs in a string def replace_all(text, dic): for i, j in dic.items(): text = text.replace(i, j) return text def generate_chat_prompt(user_input, state, **kwargs): # Check if an extension is sending its modified history. # If not, use the regular history history = state['history'] if 'history' in state else shared.history['internal'] # Define some variables impersonate = kwargs['impersonate'] if 'impersonate' in kwargs else False _continue = kwargs['_continue'] if '_continue' in kwargs else False also_return_rows = kwargs['also_return_rows'] if 'also_return_rows' in kwargs else False is_instruct = state['mode'] == 'instruct' rows = [state['context_instruct'] if is_instruct else f"{state['context'].strip()}\n"] min_rows = 3 # Finding the maximum prompt size chat_prompt_size = state['chat_prompt_size'] if shared.soft_prompt: chat_prompt_size -= shared.soft_prompt_tensor.shape[1] max_length = min(get_max_prompt_length(state), chat_prompt_size) # Building the turn templates if is_instruct: if 'turn_template' not in state or state['turn_template'] == '': template = '<|user|>\n<|user-message|>\n<|bot|>\n<|bot-message|>\n' else: template = state['turn_template'].replace(r'\n', '\n') else: template = '<|user|>: <|user-message|>\n<|bot|>: <|bot-message|>\n' replacements = { '<|user|>': state['name1_instruct' if is_instruct else 'name1'].strip(), '<|bot|>': state['name2_instruct' if is_instruct else 'name2'].strip(), } user_turn = replace_all(template.split('<|bot|>')[0], replacements) bot_turn = replace_all('<|bot|>' + template.split('<|bot|>')[1], replacements) user_turn_stripped = replace_all(user_turn.split('<|user-message|>')[0], replacements) bot_turn_stripped = replace_all(bot_turn.split('<|bot-message|>')[0], replacements) # Building the prompt i = len(history) - 1 while i >= 0 and len(encode(''.join(rows))[0]) < max_length: if _continue and i == len(history) - 1: rows.insert(1, bot_turn_stripped + history[i][1].strip()) else: rows.insert(1, bot_turn.replace('<|bot-message|>', history[i][1].strip())) string = history[i][0] if string not in ['', '<|BEGIN-VISIBLE-CHAT|>']: rows.insert(1, replace_all(user_turn, {'<|user-message|>': string.strip(), '<|round|>': str(i)})) i -= 1 if impersonate: min_rows = 2 rows.append(user_turn_stripped.rstrip(' ')) elif not _continue: # Adding the user message if len(user_input) > 0: rows.append(replace_all(user_turn, {'<|user-message|>': user_input.strip(), '<|round|>': str(len(history))})) # Adding the Character prefix rows.append(apply_extensions("bot_prefix", bot_turn_stripped.rstrip(' '))) while len(rows) > min_rows and len(encode(''.join(rows))[0]) >= max_length: rows.pop(1) prompt = ''.join(rows) if also_return_rows: return prompt, rows else: return prompt def get_stopping_strings(state): if state['mode'] == 'instruct': stopping_strings = [f"\n{state['name1_instruct']}", f"\n{state['name2_instruct']}"] else: stopping_strings = [f"\n{state['name1']}:", f"\n{state['name2']}:"] stopping_strings += ast.literal_eval(f"[{state['custom_stopping_strings']}]") return stopping_strings def extract_message_from_reply(reply, state): next_character_found = False stopping_strings = get_stopping_strings(state) if state['stop_at_newline']: lines = reply.split('\n') reply = lines[0].strip() if len(lines) > 1: next_character_found = True else: for string in stopping_strings: idx = reply.find(string) if idx != -1: reply = reply[:idx] next_character_found = True # If something like "\nYo" is generated just before "\nYou:" # is completed, trim it if not next_character_found: for string in stopping_strings: for j in range(len(string) - 1, 0, -1): if reply[-j:] == string[:j]: reply = reply[:-j] break else: continue break return reply, next_character_found def chatbot_wrapper(text, state, regenerate=False, _continue=False): if shared.model_name == 'None' or shared.model is None: logging.error("No model is loaded! Select one in the Model tab.") yield shared.history['visible'] return # Defining some variables cumulative_reply = '' just_started = True visible_text = None eos_token = '\n' if state['stop_at_newline'] else None stopping_strings = get_stopping_strings(state) # Preparing the input if not any((regenerate, _continue)): text, visible_text = apply_extensions('input_hijack', text, visible_text) if visible_text is None: visible_text = text text = apply_extensions('input', text) # *Is typing...* yield shared.history['visible'] + [[visible_text, shared.processing_message]] else: text, visible_text = shared.history['internal'][-1][0], shared.history['visible'][-1][0] if regenerate: shared.history['visible'].pop() shared.history['internal'].pop() # *Is typing...* yield shared.history['visible'] + [[visible_text, shared.processing_message]] elif _continue: last_reply = [shared.history['internal'][-1][1], shared.history['visible'][-1][1]] yield shared.history['visible'][:-1] + [[visible_text, last_reply[1] + '...']] # Generating the prompt kwargs = {'_continue': _continue} prompt = apply_extensions('custom_generate_chat_prompt', text, state, **kwargs) if prompt is None: prompt = generate_chat_prompt(text, state, **kwargs) # Generate for i in range(state['chat_generation_attempts']): reply = None for reply in generate_reply(f"{prompt}{' ' if len(cumulative_reply) > 0 else ''}{cumulative_reply}", state, eos_token=eos_token, stopping_strings=stopping_strings): reply = cumulative_reply + reply # Extracting the reply reply, next_character_found = extract_message_from_reply(reply, state) visible_reply = re.sub("(||{{user}})", state['name1'], reply) visible_reply = apply_extensions("output", visible_reply) if _continue: sep = ' ' if last_reply[0][-1] not in [' ', '\n'] else '' reply = last_reply[0] + sep + reply sep = ' ' if last_reply[1][-1] not in [' ', '\n'] else '' visible_reply = last_reply[1] + sep + visible_reply # We need this global variable to handle the Stop event, # otherwise gradio gets confused if shared.stop_everything: return shared.history['visible'] if just_started: just_started = False if not _continue: shared.history['internal'].append(['', '']) shared.history['visible'].append(['', '']) shared.history['internal'][-1] = [text, reply] shared.history['visible'][-1] = [visible_text, visible_reply] yield shared.history['visible'] if next_character_found: break if reply is not None: cumulative_reply = reply yield shared.history['visible'] def impersonate_wrapper(text, state): if shared.model_name == 'None' or shared.model is None: logging.error("No model is loaded! Select one in the Model tab.") yield '' return # Defining some variables cumulative_reply = '' eos_token = '\n' if state['stop_at_newline'] else None prompt = generate_chat_prompt(text, state, impersonate=True) stopping_strings = get_stopping_strings(state) # Yield *Is typing...* yield shared.processing_message for i in range(state['chat_generation_attempts']): reply = None for reply in generate_reply(f"{prompt}{' ' if len(cumulative_reply) > 0 else ''}{cumulative_reply}", state, eos_token=eos_token, stopping_strings=stopping_strings): reply = cumulative_reply + reply reply, next_character_found = extract_message_from_reply(reply, state) yield reply if next_character_found: break if reply is not None: cumulative_reply = reply yield reply def cai_chatbot_wrapper(text, state): for history in chatbot_wrapper(text, state): yield chat_html_wrapper(history, state['name1'], state['name2'], state['mode'], state['chat_style']) def regenerate_wrapper(text, state): if (len(shared.history['visible']) == 1 and not shared.history['visible'][0][0]) or len(shared.history['internal']) == 0: yield chat_html_wrapper(shared.history['visible'], state['name1'], state['name2'], state['mode'], state['chat_style']) else: for history in chatbot_wrapper('', state, regenerate=True): yield chat_html_wrapper(history, state['name1'], state['name2'], state['mode'], state['chat_style']) def continue_wrapper(text, state): if (len(shared.history['visible']) == 1 and not shared.history['visible'][0][0]) or len(shared.history['internal']) == 0: yield chat_html_wrapper(shared.history['visible'], state['name1'], state['name2'], state['mode'], state['chat_style']) else: for history in chatbot_wrapper('', state, _continue=True): yield chat_html_wrapper(history, state['name1'], state['name2'], state['mode'], state['chat_style']) def remove_last_message(name1, name2, mode, style): if len(shared.history['visible']) > 0 and shared.history['internal'][-1][0] != '<|BEGIN-VISIBLE-CHAT|>': last = shared.history['visible'].pop() shared.history['internal'].pop() else: last = ['', ''] return chat_html_wrapper(shared.history['visible'], name1, name2, mode, style), last[0] def send_last_reply_to_input(): if len(shared.history['internal']) > 0: return shared.history['internal'][-1][1] else: return '' def replace_last_reply(text, name1, name2, mode, style): if len(shared.history['visible']) > 0: shared.history['visible'][-1][1] = text shared.history['internal'][-1][1] = apply_extensions("input", text) return chat_html_wrapper(shared.history['visible'], name1, name2, mode, style) def send_dummy_message(text, name1, name2, mode, style): shared.history['visible'].append([text, '']) shared.history['internal'].append([apply_extensions("input", text), '']) return chat_html_wrapper(shared.history['visible'], name1, name2, mode, style) def send_dummy_reply(text, name1, name2, mode, style): if len(shared.history['visible']) > 0 and not shared.history['visible'][-1][1] == '': shared.history['visible'].append(['', '']) shared.history['internal'].append(['', '']) shared.history['visible'][-1][1] = text shared.history['internal'][-1][1] = apply_extensions("input", text) return chat_html_wrapper(shared.history['visible'], name1, name2, mode, style) def clear_html(): return chat_html_wrapper([], "", "") def clear_chat_log(name1, name2, greeting, mode, style): shared.history['visible'] = [] shared.history['internal'] = [] if mode != 'instruct': if greeting != '': shared.history['internal'] += [['<|BEGIN-VISIBLE-CHAT|>', greeting]] shared.history['visible'] += [['', apply_extensions("output", greeting)]] save_history(mode) return chat_html_wrapper(shared.history['visible'], name1, name2, mode, style) def redraw_html(name1, name2, mode, style): return chat_html_wrapper(shared.history['visible'], name1, name2, mode, style) def tokenize_dialogue(dialogue, name1, name2, mode, style): history = [] messages = [] dialogue = re.sub('', '', dialogue) dialogue = re.sub('', '', dialogue) dialogue = re.sub('(\n|^)[Aa]non:', '\\1You:', dialogue) dialogue = re.sub('(\n|^)\[CHARACTER\]:', f'\\g<1>{name2}:', dialogue) idx = [m.start() for m in re.finditer(f"(^|\n)({re.escape(name1)}|{re.escape(name2)}):", dialogue)] if len(idx) == 0: return history for i in range(len(idx) - 1): messages.append(dialogue[idx[i]:idx[i + 1]].strip()) messages.append(dialogue[idx[-1]:].strip()) entry = ['', ''] for i in messages: if i.startswith(f'{name1}:'): entry[0] = i[len(f'{name1}:'):].strip() elif i.startswith(f'{name2}:'): entry[1] = i[len(f'{name2}:'):].strip() if not (len(entry[0]) == 0 and len(entry[1]) == 0): history.append(entry) entry = ['', ''] print("\033[1;32;1m\nDialogue tokenized to:\033[0;37;0m\n", end='') for row in history: for column in row: print("\n") for line in column.strip().split('\n'): print("| " + line + "\n") print("|\n") print("------------------------------") return history def save_history(mode, timestamp=False): # Instruct mode histories should not be saved as if # Alpaca or Vicuna were characters if mode == 'instruct': if not timestamp: return fname = f"Instruct_{datetime.now().strftime('%Y%m%d-%H%M%S')}.json" else: if timestamp: fname = f"{shared.character}_{datetime.now().strftime('%Y%m%d-%H%M%S')}.json" else: fname = f"{shared.character}_persistent.json" if not Path('logs').exists(): Path('logs').mkdir() with open(Path(f'logs/{fname}'), 'w', encoding='utf-8') as f: f.write(json.dumps({'data': shared.history['internal'], 'data_visible': shared.history['visible']}, indent=2)) return Path(f'logs/{fname}') def load_history(file, name1, name2): file = file.decode('utf-8') try: j = json.loads(file) if 'data' in j: shared.history['internal'] = j['data'] if 'data_visible' in j: shared.history['visible'] = j['data_visible'] else: shared.history['visible'] = copy.deepcopy(shared.history['internal']) except: shared.history['internal'] = tokenize_dialogue(file, name1, name2) shared.history['visible'] = copy.deepcopy(shared.history['internal']) def replace_character_names(text, name1, name2): text = text.replace('{{user}}', name1).replace('{{char}}', name2) return text.replace('', name1).replace('', name2) def build_pygmalion_style_context(data): context = "" if 'char_persona' in data and data['char_persona'] != '': context += f"{data['char_name']}'s Persona: {data['char_persona']}\n" if 'world_scenario' in data and data['world_scenario'] != '': context += f"Scenario: {data['world_scenario']}\n" context = f"{context.strip()}\n\n" return context def generate_pfp_cache(character): cache_folder = Path("cache") if not cache_folder.exists(): cache_folder.mkdir() for path in [Path(f"characters/{character}.{extension}") for extension in ['png', 'jpg', 'jpeg']]: if path.exists(): img = make_thumbnail(Image.open(path)) img.save(Path('cache/pfp_character.png'), format='PNG') return img return None def load_character(character, name1, name2, mode, style): shared.character = character context = greeting = turn_template = "" greeting_field = 'greeting' picture = None # Deleting the profile picture cache, if any if Path("cache/pfp_character.png").exists(): Path("cache/pfp_character.png").unlink() if character != 'None': folder = 'characters' if not mode == 'instruct' else 'characters/instruction-following' picture = generate_pfp_cache(character) for extension in ["yml", "yaml", "json"]: filepath = Path(f'{folder}/{character}.{extension}') if filepath.exists(): break file_contents = open(filepath, 'r', encoding='utf-8').read() data = json.loads(file_contents) if extension == "json" else yaml.safe_load(file_contents) # Finding the bot's name for k in ['name', 'bot', '<|bot|>', 'char_name']: if k in data and data[k] != '': name2 = data[k] break # Find the user name (if any) for k in ['your_name', 'user', '<|user|>']: if k in data and data[k] != '': name1 = data[k] break for field in ['context', 'greeting', 'example_dialogue', 'char_persona', 'char_greeting', 'world_scenario']: if field in data: data[field] = replace_character_names(data[field], name1, name2) if 'context' in data: context = data['context'] if mode != 'instruct': context = context.strip() + '\n\n' elif "char_persona" in data: context = build_pygmalion_style_context(data) greeting_field = 'char_greeting' if 'example_dialogue' in data: context += f"{data['example_dialogue'].strip()}\n" if greeting_field in data: greeting = data[greeting_field] if 'turn_template' in data: turn_template = data['turn_template'] else: context = shared.settings['context'] name2 = shared.settings['name2'] greeting = shared.settings['greeting'] turn_template = shared.settings['turn_template'] if mode != 'instruct': shared.history['internal'] = [] shared.history['visible'] = [] if Path(f'logs/{shared.character}_persistent.json').exists(): load_history(open(Path(f'logs/{shared.character}_persistent.json'), 'rb').read(), name1, name2) else: # Insert greeting if it exists if greeting != "": shared.history['internal'] += [['<|BEGIN-VISIBLE-CHAT|>', greeting]] shared.history['visible'] += [['', apply_extensions("output", greeting)]] # Create .json log files since they don't already exist save_history(mode) return name1, name2, picture, greeting, context, repr(turn_template)[1:-1], chat_html_wrapper(shared.history['visible'], name1, name2, mode, style) def upload_character(json_file, img, tavern=False): json_file = json_file if type(json_file) == str else json_file.decode('utf-8') data = json.loads(json_file) outfile_name = data["char_name"] i = 1 while Path(f'characters/{outfile_name}.json').exists(): outfile_name = f'{data["char_name"]}_{i:03d}' i += 1 if tavern: outfile_name = f'TavernAI-{outfile_name}' with open(Path(f'characters/{outfile_name}.json'), 'w', encoding='utf-8') as f: f.write(json_file) if img is not None: img = Image.open(io.BytesIO(img)) img.save(Path(f'characters/{outfile_name}.png')) logging.info(f'New character saved to "characters/{outfile_name}.json".') return outfile_name def upload_tavern_character(img, name1, name2): _img = Image.open(io.BytesIO(img)) _img.getexif() decoded_string = base64.b64decode(_img.info['chara']) _json = json.loads(decoded_string) _json = {"char_name": _json['name'], "char_persona": _json['description'], "char_greeting": _json["first_mes"], "example_dialogue": _json['mes_example'], "world_scenario": _json['scenario']} return upload_character(json.dumps(_json), img, tavern=True) def upload_your_profile_picture(img, name1, name2, mode, style): cache_folder = Path("cache") if not cache_folder.exists(): cache_folder.mkdir() if img is None: if Path("cache/pfp_me.png").exists(): Path("cache/pfp_me.png").unlink() else: img = make_thumbnail(img) img.save(Path('cache/pfp_me.png')) logging.info('Profile picture saved to "cache/pfp_me.png"') return chat_html_wrapper(shared.history['visible'], name1, name2, mode, style, reset_cache=True)