mirror of
https://github.com/1Panel-dev/MaxKB.git
synced 2025-12-26 18:32:48 +00:00
cb40d62162
--bug=1057749 --user=刘瑞斌 【知识库】qa问答对文档中带图片，导入后图片未显示 https://www.tapd.cn/62980211/s/1723700
124 lines
4.1 KiB
Python
124 lines
4.1 KiB
Python
# coding=utf-8
|
||
"""
|
||
@project: MaxKB
|
||
@Author：虎
|
||
@file： tools.py
|
||
@date：2024/9/11 16:41
|
||
@desc:
|
||
"""
|
||
import io
|
||
import traceback
|
||
from functools import reduce
|
||
from io import BytesIO
|
||
from xml.etree.ElementTree import fromstring
|
||
from zipfile import ZipFile
|
||
|
||
import uuid_utils.compat as uuid
|
||
from PIL import Image as PILImage
|
||
from openpyxl.drawing.image import Image as openpyxl_Image
|
||
from openpyxl.packaging.relationship import get_rels_path, get_dependents
|
||
from openpyxl.xml.constants import SHEET_DRAWING_NS, REL_NS, SHEET_MAIN_NS
|
||
|
||
from common.utils.logger import maxkb_logger
|
||
from knowledge.models import File
|
||
|
||
from PIL import ImageFile
|
||
ImageFile.LOAD_TRUNCATED_IMAGES = True
|
||
PILImage.MAX_IMAGE_PIXELS = None
|
||
|
||
def parse_element(element) -> {}:
|
||
data = {}
|
||
xdr_namespace = "{%s}" % SHEET_DRAWING_NS
|
||
targets = level_order_traversal(element, xdr_namespace + "nvPicPr")
|
||
for target in targets:
|
||
cNvPr = embed = ""
|
||
for child in target:
|
||
if child.tag == xdr_namespace + "nvPicPr":
|
||
cNvPr = child[0].attrib["name"]
|
||
elif child.tag == xdr_namespace + "blipFill":
|
||
_rel_embed = "{%s}embed" % REL_NS
|
||
embed = child[0].attrib[_rel_embed]
|
||
if cNvPr:
|
||
data[cNvPr] = embed
|
||
return data
|
||
|
||
|
||
def parse_element_sheet_xml(element) -> []:
|
||
data = []
|
||
xdr_namespace = "{%s}" % SHEET_MAIN_NS
|
||
targets = level_order_traversal(element, xdr_namespace + "f")
|
||
for target in targets:
|
||
for child in target:
|
||
if child.tag == xdr_namespace + "f":
|
||
data.append(child.text)
|
||
return data
|
||
|
||
|
||
def level_order_traversal(root, flag: str) -> []:
|
||
queue = [root]
|
||
targets = []
|
||
while queue:
|
||
node = queue.pop(0)
|
||
children = [child.tag for child in node]
|
||
if flag in children:
|
||
targets.append(node)
|
||
continue
|
||
for child in node:
|
||
queue.append(child)
|
||
return targets
|
||
|
||
|
||
def handle_images(deps, archive: ZipFile) -> []:
|
||
images = []
|
||
if not PILImage: # Pillow not installed, drop images
|
||
return images
|
||
for dep in deps:
|
||
try:
|
||
image_io = archive.read(dep.target)
|
||
image = openpyxl_Image(BytesIO(image_io))
|
||
except Exception as e:
|
||
maxkb_logger.error(f"Error reading image {dep.target}: {e}, {traceback.format_exc()}")
|
||
continue
|
||
image.embed = dep.id # 文件rId
|
||
image.target = dep.target # 文件地址
|
||
images.append(image)
|
||
return images
|
||
|
||
|
||
def xlsx_embed_cells_images(buffer) -> {}:
|
||
archive = ZipFile(buffer)
|
||
# 解析cellImage.xml文件
|
||
deps = get_dependents(archive, get_rels_path("xl/cellimages.xml"))
|
||
image_rel = handle_images(deps=deps, archive=archive)
|
||
# 工作表及其中图片ID
|
||
sheet_list = {}
|
||
for item in archive.namelist():
|
||
if not item.startswith('xl/worksheets/sheet'):
|
||
continue
|
||
key = item.split('/')[-1].split('.')[0].split('sheet')[-1]
|
||
sheet_list[key] = parse_element_sheet_xml(fromstring(archive.read(item)))
|
||
cell_images_xml = parse_element(fromstring(archive.read("xl/cellimages.xml")))
|
||
cell_images_rel = {}
|
||
for image in image_rel:
|
||
cell_images_rel[image.embed] = image
|
||
for cnv, embed in cell_images_xml.items():
|
||
cell_images_xml[cnv] = cell_images_rel.get(embed)
|
||
result = {}
|
||
for key, img in cell_images_xml.items():
|
||
image_excel_id_list = [_xl for _xl in
|
||
reduce(lambda x, y: [*x, *y], [sheet for sheet_id, sheet in sheet_list.items()], []) if
|
||
key in _xl]
|
||
# print(key, img)
|
||
if img is None:
|
||
continue
|
||
if len(image_excel_id_list) > 0:
|
||
image_excel_id = image_excel_id_list[-1]
|
||
f = archive.open(img.target)
|
||
img_byte = io.BytesIO()
|
||
im = PILImage.open(f).convert('RGB')
|
||
im.save(img_byte, format='JPEG')
|
||
image = File(id=uuid.uuid7(), file_name=img.path, meta={'debug': False, 'content': img_byte.getvalue()})
|
||
result['=' + image_excel_id] = image
|
||
archive.close()
|
||
return result
|