MinerU/magic_pdf/user_api.py

"""用户输入： model数组，每个元素代表一个页面 pdf在s3的路径 截图保存的s3位置.

然后：
    1）根据s3路径，调用spark集群的api,拿到ak,sk,endpoint，构造出s3PDFReader
    2）根据用户输入的s3地址，调用spark集群的api,拿到ak,sk,endpoint，构造出s3ImageWriter

其余部分至于构造s3cli, 获取ak,sk都在code-clean里写代码完成。不要反向依赖！！！
"""

from loguru import logger

from magic_pdf.data.data_reader_writer import DataWriter
from magic_pdf.libs.version import __version__
from magic_pdf.model.doc_analyze_by_custom_model import doc_analyze
from magic_pdf.pdf_parse_by_ocr import parse_pdf_by_ocr
from magic_pdf.pdf_parse_by_txt import parse_pdf_by_txt

PARSE_TYPE_TXT = 'txt'
PARSE_TYPE_OCR = 'ocr'


def parse_txt_pdf(pdf_bytes: bytes, pdf_models: list, imageWriter: DataWriter, is_debug=False,
                  start_page_id=0, end_page_id=None, lang=None,
                  *args, **kwargs):
    """解析文本类pdf."""
    pdf_info_dict = parse_pdf_by_txt(
        pdf_bytes,
        pdf_models,
        imageWriter,
        start_page_id=start_page_id,
        end_page_id=end_page_id,
        debug_mode=is_debug,
    )

    pdf_info_dict['_parse_type'] = PARSE_TYPE_TXT

    pdf_info_dict['_version_name'] = __version__

    if lang is not None:
        pdf_info_dict['_lang'] = lang

    return pdf_info_dict


def parse_ocr_pdf(pdf_bytes: bytes, pdf_models: list, imageWriter: DataWriter, is_debug=False,
                  start_page_id=0, end_page_id=None, lang=None,
                  *args, **kwargs):
    """解析ocr类pdf."""
    pdf_info_dict = parse_pdf_by_ocr(
        pdf_bytes,
        pdf_models,
        imageWriter,
        start_page_id=start_page_id,
        end_page_id=end_page_id,
        debug_mode=is_debug,
    )

    pdf_info_dict['_parse_type'] = PARSE_TYPE_OCR

    pdf_info_dict['_version_name'] = __version__

    if lang is not None:
        pdf_info_dict['_lang'] = lang

    return pdf_info_dict


def parse_union_pdf(pdf_bytes: bytes, pdf_models: list, imageWriter: DataWriter, is_debug=False,
                    input_model_is_empty: bool = False,
                    start_page_id=0, end_page_id=None, lang=None,
                    *args, **kwargs):
    """ocr和文本混合的pdf，全部解析出来."""

    def parse_pdf(method):
        try:
            return method(
                pdf_bytes,
                pdf_models,
                imageWriter,
                start_page_id=start_page_id,
                end_page_id=end_page_id,
                debug_mode=is_debug,
            )
        except Exception as e:
            logger.exception(e)
            return None

    pdf_info_dict = parse_pdf(parse_pdf_by_txt)
    if pdf_info_dict is None or pdf_info_dict.get('_need_drop', False):
        logger.warning('parse_pdf_by_txt drop or error, switch to parse_pdf_by_ocr')
        if input_model_is_empty:
            layout_model = kwargs.get('layout_model', None)
            formula_enable = kwargs.get('formula_enable', None)
            table_enable = kwargs.get('table_enable', None)
            pdf_models = doc_analyze(
                pdf_bytes,
                ocr=True,
                start_page_id=start_page_id,
                end_page_id=end_page_id,
                lang=lang,
                layout_model=layout_model,
                formula_enable=formula_enable,
                table_enable=table_enable,
            )
        pdf_info_dict = parse_pdf(parse_pdf_by_ocr)
        if pdf_info_dict is None:
            raise Exception('Both parse_pdf_by_txt and parse_pdf_by_ocr failed.')
        else:
            pdf_info_dict['_parse_type'] = PARSE_TYPE_OCR
    else:
        pdf_info_dict['_parse_type'] = PARSE_TYPE_TXT

    pdf_info_dict['_version_name'] = __version__

    if lang is not None:
        pdf_info_dict['_lang'] = lang

    return pdf_info_dict