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| 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 (generate_reply, get_encoded_length, | |
| get_max_prompt_length) | |
| from modules.utils import replace_all | |
| def get_turn_substrings(state, instruct=False): | |
| if 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 instruct else 'name1'].strip(), | |
| '<|bot|>': state['name2_instruct' if instruct else 'name2'].strip(), | |
| } | |
| output = { | |
| 'user_turn': template.split('<|bot|>')[0], | |
| 'bot_turn': '<|bot|>' + template.split('<|bot|>')[1], | |
| 'user_turn_stripped': template.split('<|bot|>')[0].split('<|user-message|>')[0], | |
| 'bot_turn_stripped': '<|bot|>' + template.split('<|bot|>')[1].split('<|bot-message|>')[0], | |
| } | |
| for k in output: | |
| output[k] = replace_all(output[k], replacements) | |
| return output | |
| def generate_chat_prompt(user_input, state, **kwargs): | |
| impersonate = kwargs.get('impersonate', False) | |
| _continue = kwargs.get('_continue', False) | |
| also_return_rows = kwargs.get('also_return_rows', False) | |
| history = state.get('history', shared.history['internal']) | |
| is_instruct = state['mode'] == 'instruct' | |
| # 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) | |
| all_substrings = { | |
| 'chat': get_turn_substrings(state, instruct=False), | |
| 'instruct': get_turn_substrings(state, instruct=True) | |
| } | |
| substrings = all_substrings['instruct' if is_instruct else 'chat'] | |
| # Creating the template for "chat-instruct" mode | |
| if state['mode'] == 'chat-instruct': | |
| wrapper = '' | |
| command = state['chat-instruct_command'].replace('<|character|>', state['name2'] if not impersonate else state['name1']) | |
| wrapper += state['context_instruct'] | |
| wrapper += all_substrings['instruct']['user_turn'].replace('<|user-message|>', command) | |
| wrapper += all_substrings['instruct']['bot_turn_stripped'] | |
| if impersonate: | |
| wrapper += substrings['user_turn_stripped'].rstrip(' ') | |
| else: | |
| wrapper += apply_extensions("bot_prefix", substrings['bot_turn_stripped'].rstrip(' ')) | |
| else: | |
| wrapper = '<|prompt|>' | |
| # Building the prompt | |
| min_rows = 3 | |
| i = len(history) - 1 | |
| rows = [state['context_instruct'] if is_instruct else f"{state['context'].strip()}\n"] | |
| while i >= 0 and get_encoded_length(wrapper.replace('<|prompt|>', ''.join(rows))) < max_length: | |
| if _continue and i == len(history) - 1: | |
| rows.insert(1, substrings['bot_turn_stripped'] + history[i][1].strip()) | |
| else: | |
| rows.insert(1, substrings['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(substrings['user_turn'], {'<|user-message|>': string.strip(), '<|round|>': str(i)})) | |
| i -= 1 | |
| if impersonate: | |
| if state['mode'] == 'chat-instruct': | |
| min_rows = 1 | |
| else: | |
| min_rows = 2 | |
| rows.append(substrings['user_turn_stripped'].rstrip(' ')) | |
| elif not _continue: | |
| # Adding the user message | |
| if len(user_input) > 0: | |
| rows.append(replace_all(substrings['user_turn'], {'<|user-message|>': user_input.strip(), '<|round|>': str(len(history))})) | |
| # Adding the Character prefix | |
| if state['mode'] != 'chat-instruct': | |
| rows.append(apply_extensions("bot_prefix", substrings['bot_turn_stripped'].rstrip(' '))) | |
| while len(rows) > min_rows and get_encoded_length(wrapper.replace('<|prompt|>', ''.join(rows))) >= max_length: | |
| rows.pop(1) | |
| prompt = wrapper.replace('<|prompt|>', ''.join(rows)) | |
| if also_return_rows: | |
| return prompt, rows | |
| else: | |
| return prompt | |
| def get_stopping_strings(state): | |
| stopping_strings = [] | |
| if state['mode'] in ['instruct', 'chat-instruct']: | |
| stopping_strings += [ | |
| state['turn_template'].split('<|user-message|>')[1].split('<|bot|>')[0] + '<|bot|>', | |
| state['turn_template'].split('<|bot-message|>')[1] + '<|user|>' | |
| ] | |
| replacements = { | |
| '<|user|>': state['name1_instruct'], | |
| '<|bot|>': state['name2_instruct'] | |
| } | |
| for i in range(len(stopping_strings)): | |
| stopping_strings[i] = replace_all(stopping_strings[i], replacements).rstrip(' ').replace(r'\n', '\n') | |
| if state['mode'] in ['chat', 'chat-instruct']: | |
| 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 j, reply in enumerate(generate_reply(prompt + cumulative_reply, state, eos_token=eos_token, stopping_strings=stopping_strings, is_chat=True)): | |
| reply = cumulative_reply + reply | |
| # Extracting the reply | |
| reply, next_character_found = extract_message_from_reply(reply, state) | |
| visible_reply = re.sub("(<USER>|<user>|{{user}})", state['name1'], reply) | |
| visible_reply = apply_extensions("output", 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(['', '']) | |
| if _continue: | |
| shared.history['internal'][-1] = [text, last_reply[0] + reply] | |
| shared.history['visible'][-1] = [visible_text, last_reply[1] + visible_reply] | |
| yield shared.history['visible'] | |
| elif not (j == 0 and visible_reply.strip() == ''): | |
| 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 in [None, '']: | |
| break | |
| else: | |
| 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('', state, impersonate=True) | |
| stopping_strings = get_stopping_strings(state) | |
| yield text + '...' | |
| cumulative_reply = text | |
| for i in range(state['chat_generation_attempts']): | |
| reply = None | |
| for reply in generate_reply(prompt + cumulative_reply, state, eos_token=eos_token, stopping_strings=stopping_strings, is_chat=True): | |
| reply = cumulative_reply + reply | |
| reply, next_character_found = extract_message_from_reply(reply, state) | |
| yield reply | |
| if next_character_found: | |
| break | |
| if reply in [None, '']: | |
| break | |
| else: | |
| cumulative_reply = reply | |
| yield cumulative_reply | |
| def generate_chat_reply(text, state, regenerate=False, _continue=False): | |
| if regenerate or _continue: | |
| text = '' | |
| if (len(shared.history['visible']) == 1 and not shared.history['visible'][0][0]) or len(shared.history['internal']) == 0: | |
| yield shared.history['visible'] | |
| return | |
| for history in chatbot_wrapper(text, state, regenerate=regenerate, _continue=_continue): | |
| yield history | |
| # Same as above but returns HTML | |
| def generate_chat_reply_wrapper(text, state, regenerate=False, _continue=False): | |
| for history in generate_chat_reply(text, state, regenerate, _continue): | |
| yield chat_html_wrapper(history, state['name1'], state['name2'], state['mode'], state['chat_style']) | |
| def remove_last_message(): | |
| 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 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): | |
| if len(shared.history['visible']) > 0: | |
| shared.history['visible'][-1][1] = text | |
| shared.history['internal'][-1][1] = apply_extensions("input", text) | |
| def send_dummy_message(text): | |
| shared.history['visible'].append([text, '']) | |
| shared.history['internal'].append([apply_extensions("input", text), '']) | |
| def send_dummy_reply(text): | |
| 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) | |
| def clear_chat_log(greeting, mode): | |
| 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) | |
| def redraw_html(name1, name2, mode, style, reset_cache=False): | |
| return chat_html_wrapper(shared.history['visible'], name1, name2, mode, style, reset_cache=reset_cache) | |
| def tokenize_dialogue(dialogue, name1, name2): | |
| history = [] | |
| messages = [] | |
| dialogue = re.sub('<START>', '', dialogue) | |
| dialogue = re.sub('<start>', '', 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('<USER>', name1).replace('<BOT>', 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<START>\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, instruct=False): | |
| 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 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 not instruct: | |
| context = context.strip() + '\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 not 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('instruct' if instruct else 'chat') | |
| return name1, name2, picture, greeting, context, repr(turn_template)[1:-1] | |
| 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): | |
| 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"') | |