-
Notifications
You must be signed in to change notification settings - Fork 20
/
Copy pathmain.py
363 lines (319 loc) · 15.3 KB
/
main.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
import re
import requests
import json
import os
import pdfkit
import datetime
import base64
import time
import traceback
import urllib.request
from bs4 import BeautifulSoup
from urllib.parse import quote
from urllib.parse import unquote
from urllib.error import ContentTooShortError
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
HTML_TEMPLATE = """
<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"></head>
<body>
<h1>{title}</h1>
<br>{author} - {cretime}<br>
<p>{text}</p>
</body>
</html>
"""
class Spider:
ZSXQ_ACCESS_TOKEN = '' # 登录后Cookie中的Token（必须修改）
USER_AGENT = '' # 登录时使用的User-Agent（必须修改）
GROUP_ID = '' # 知识星球中的小组ID
PDF_FILE_NAME = 'output' # 生成的PDF文件名，不带后缀
PDF_MAX_PAGE_NUM = 500 # 单个PDF文件最大的页面数。windows下超过一定数量的页面会生成失败，所以需要调整此值
DOWNLOAD_PICS = True # 是否下载图片 True | False ;下载会导致程序变慢
DOWNLOAD_COMMENTS = True # 是否下载评论
ONLY_DIGESTS = False # True-只精华 | False-全部
FROM_DATE_TO_DATE = False # 按时间区间下载
EARLY_DATE = '' # 最早时间 当FROM_DATE_TO_DATE=True时生效 为空表示不限制 形如'2017-05-25T00:00:00.000+0800'
LATE_DATE = '' # 最晚时间 当FROM_DATE_TO_DATE=True时生效 为空表示不限制 形如'2017-05-25T00:00:00.000+0800'
COUNTS_PER = 30 # 每次请求加载几个主题 最大可设置为30
DEBUG = False # DEBUG开关
DEBUG_NUM = 120 # DEBUG时 跑多少条数据后停止 需与COUNTS_PER结合考虑
SLEEP_FLAG = True # 请求之间是否SLEEP避免请求过于频繁
SLEEP_SEC = 5 # SLEEP秒数 SLEEP_FLAG=True时生效
OVER_DATE_BREAK = False
htmls_file = []
num = 1
output_dir = ''
html_output_dir = ''
image_output_dir = ''
data_output_dir = ''
start_url = ''
headers = {}
pdf_options = None
def __init__(self, access_token=None, user_agent=None, group_id=None):
self.ZSXQ_ACCESS_TOKEN = access_token or self.ZSXQ_ACCESS_TOKEN
self.USER_AGENT = user_agent or self.USER_AGENT
self.GROUP_ID = group_id or self.GROUP_ID
self.headers = {
'Cookie': 'abtest_env=product;zsxq_access_token=' + self.ZSXQ_ACCESS_TOKEN,
'User-Agent': self.USER_AGENT,
'accept': 'application/json, text/plain, */*',
'sec-ch-ua-platform': '"Windows"',
'origin': 'https://wx.zsxq.com',
'sec-fetch-site': 'same-site',
'sec-fetch-mode': 'cors',
'sec-fetch-dest': 'empty',
'sec-ch-ua-mobile': '?0',
'sec-ch-ua': '" Not A;Brand";v="99", "Chromium";v="98", "Google Chrome";v="98"',
'referer': 'https://wx.zsxq.com/',
'dnt': '1',
}
self.pdf_options = {
"page-size": "A4",
"margin-top": "0.35in",
"margin-right": "0.65in",
"margin-bottom": "0.35in",
"margin-left": "0.65in",
"encoding": "UTF-8",
"custom-header": [("Accept-Encoding", "gzip")],
"cookie": [],
"outline-depth": 10,
}
def get_url_data(self, url):
rsp = requests.get(url, headers=self.headers)
rsp_data = rsp.json()
if not rsp_data.get('succeeded'):
if rsp_data.get('code') == 1059:
if self.SLEEP_FLAG:
time.sleep(self.SLEEP_SEC)
return self.get_url_data(url)
raise Exception('访问错误：\n' + json.dumps(rsp_data, indent=2, ensure_ascii=False))
else:
return rsp_data.get('resp_data')
def get_data(self, url):
rsp_data = self.get_url_data(url)
self.save_data_json(self.COUNTS_PER, self.num, rsp_data)
topics = rsp_data.get('topics')
for topic in topics:
if self.FROM_DATE_TO_DATE and self.EARLY_DATE.strip():
if topic.get('create_time') < self.EARLY_DATE.strip():
self.OVER_DATE_BREAK = True
break
content = topic.get('question', topic.get('talk', topic.get('task', topic.get('solution'))))
anonymous = content.get('anonymous')
if anonymous:
author = '匿名用户'
else:
author = content.get('owner').get('name')
cretime = (topic.get('create_time')[:23]).replace('T', ' ')
text = content.get('text', '')
# 排除不需要的文章
# if text.strip().startswith(u'') or text.find(u'') != -1:
# continue
text = self.handle_link(text)
title = str(self.num) + '_' + cretime[:16]
if topic.get('digested') == True:
title += ' {精华}'
if self.DOWNLOAD_PICS and content.get('images'):
soup = BeautifulSoup(HTML_TEMPLATE, 'html.parser')
images_index = 0
_images = content.get('images')
print(f'Crawling images: {len(_images)}')
for img in _images:
url = img.get('large').get('url')
local_url = os.path.join(self.image_output_dir, f'{self.num}_{images_index}.jpg')
images_index += 1
self.download_image(url, local_url)
# img_tag = soup.new_tag('img', src=local_url)
# 直接写入路径可能无法正常将图片写入PDF，此处写入转码后的图片数据
img_tag = soup.new_tag('img', src=self.encode_image(local_url))
soup.body.append(img_tag)
html_img = str(soup)
html = html_img.format(title=title, text=text, author=author, cretime=cretime)
else:
html = HTML_TEMPLATE.format(title=title, text=text, author=author, cretime=cretime)
if topic.get('question'):
answer_author = topic.get('answer').get('owner').get('name', '')
answer = topic.get('answer').get('text', "")
answer = self.handle_link(answer)
soup = BeautifulSoup(html, 'html.parser')
answer_tag = soup.new_tag('p')
answer = '【' + answer_author + '】 回答：<br>' + answer
soup_temp = BeautifulSoup(answer, 'html.parser')
answer_tag.append(soup_temp)
soup.body.append(answer_tag)
html = str(soup)
files = content.get('files')
if files:
files_content = '<i>文件列表(需访问网站下载) :<br>'
for f in files:
files_content += f.get('name') + '<br>'
files_content += '</i>'
soup = BeautifulSoup(html, 'html.parser')
files_tag = soup.new_tag('p')
soup_temp = BeautifulSoup(files_content, 'html.parser')
files_tag.append(soup_temp)
soup.body.append(files_tag)
html = str(soup)
comments = topic.get('show_comments')
if self.DOWNLOAD_COMMENTS and comments:
soup = BeautifulSoup(html, 'html.parser')
hr_tag = soup.new_tag('hr')
soup.body.append(hr_tag)
for comment in comments:
if comment.get('repliee'):
comment_str = '[' + comment.get('owner').get('name') + ' 回复 ' + comment.get('repliee').get('name') + '] : ' + self.handle_link(comment.get('text'))
else:
comment_str = '[' + comment.get('owner').get('name') + '] : ' + self.handle_link(comment.get('text'))
comment_tag = soup.new_tag('p')
soup_temp = BeautifulSoup(comment_str, 'html.parser')
comment_tag.append(soup_temp)
soup.body.append(comment_tag)
html = str(soup)
file_name = self.save_html(self.num, html)
self.num += 1
self.htmls_file.append(file_name)
# DEBUG 仅导出部分数据时使用
if self.DEBUG and self.num >= self.DEBUG_NUM:
return self.htmls_file
if self.OVER_DATE_BREAK:
return self.htmls_file
if topics:
create_time = topics[-1].get('create_time')
if create_time[20:23] == "000":
end_time = create_time[:20] + "999" + create_time[23:]
str_date_time = end_time[:19]
delta = datetime.timedelta(seconds=1)
date_time = datetime.datetime.strptime(str_date_time, '%Y-%m-%dT%H:%M:%S')
date_time = date_time - delta
str_date_time = date_time.strftime('%Y-%m-%dT%H:%M:%S')
end_time = str_date_time + end_time[19:]
else:
res = int(create_time[20:23]) - 1
end_time = create_time[:20] + str(res).zfill(3) + create_time[23:] # zfill 函数补足结果前面的零，始终为3位数
end_time = quote(end_time)
if len(end_time) == 33:
end_time = end_time[:24] + '0' + end_time[24:]
next_url = self.start_url + '&end_time=' + end_time
if self.SLEEP_FLAG:
time.sleep(self.SLEEP_SEC)
print(f'Next url: {next_url}')
self.get_data(next_url)
return self.htmls_file
def encode_image(self, image_url):
with open(image_url, "rb") as image_file:
encoded_string = base64.b64encode(image_file.read())
return 'data:image/png;base64,' + encoded_string.decode('utf-8')
def download_image(self, url, local_url):
try:
urllib.request.urlretrieve(url, local_url)
except ContentTooShortError:
print('Network not good. Reloading ' + url)
self.download_image(url, local_url)
def handle_link(self, text):
soup = BeautifulSoup(text, "html.parser")
mention = soup.find_all('e', attrs={'type': 'mention'})
if len(mention):
for m in mention:
mention_name = m.attrs['title']
new_tag = soup.new_tag('span')
new_tag.string = mention_name
m.replace_with(new_tag)
hashtag = soup.find_all('e', attrs={'type': 'hashtag'})
if len(hashtag):
for tag in hashtag:
tag_name = unquote(tag.attrs['title'])
new_tag = soup.new_tag('span')
new_tag.string = tag_name
tag.replace_with(new_tag)
links = soup.find_all('e', attrs={'type': 'web'})
if len(links):
for link in links:
title = unquote(link.attrs['title'])
href = unquote(link.attrs['href'])
new_a_tag = soup.new_tag('a', href=href)
new_a_tag.string = title
link.replace_with(new_a_tag)
text = str(soup)
text = re.sub(r'<e[^>]*>', '', text).strip()
text = text.replace('\n', '<br>')
return text
def _make_pdf(self, html_files):
if len(html_files) > self.PDF_MAX_PAGE_NUM:
_html_files = html_files
html_files = [_html_files[i:i + self.PDF_MAX_PAGE_NUM] for i in range(0, len(_html_files), self.PDF_MAX_PAGE_NUM)]
else:
html_files = [html_files]
self.pdf_options['user-style-sheet'] = str(self.get_dir_path('temp.css'))
try:
for i, files in enumerate(html_files, start=1):
pdfkit.from_file(files, os.path.join(self.output_dir, f'{self.PDF_FILE_NAME}_{i}.pdf'), options=self.pdf_options, verbose=True)
print("电子书生成成功！")
except Exception as e:
print("电子书生成失败：\n" + traceback.format_exc())
def generate_pdf(self, html_files):
self._make_pdf(html_files)
def regenerate_pdf(self, dir_name):
self.output_dir = self.get_dir_path(dir_name)
html_dir = os.path.join(self.output_dir, 'html')
html_files = os.listdir(html_dir)
html_files.sort(key=lambda x: int(x[:-5]))
html_files = [os.path.join(html_dir, i) for i in html_files if i.endswith('.html')]
self._make_pdf(html_files)
def generate_merge_pdf(self, dir_name):
# 多个html合并成一个html后，再生成PDF，生成时间会比较长，会分页混乱
output_dir = self.get_dir_path(dir_name)
html_dir = os.path.join(output_dir, 'html')
html_files = os.listdir(html_dir)
html_files.sort(key=lambda x: int(x[:-5]))
html_files = [os.path.join(html_dir, i) for i in html_files if i.endswith('.html')]
single_html = os.path.join(output_dir, 'single.html')
with open(single_html, 'w+', encoding='utf-8') as f:
for i in html_files:
with open(i, 'r+', encoding='utf-8') as fr:
f.write(fr.read() + '\n\n')
try:
pdfkit.from_file(single_html, os.path.join(output_dir, self.PDF_FILE_NAME + '.pdf'), options=self.pdf_options, css=self.get_dir_path('temp.css'), verbose=True)
print("电子书生成成功！")
except Exception as e:
print("电子书生成失败：\n" + traceback.format_exc())
def save_html(self, num, data):
file_name = os.path.join(self.html_output_dir, f'{num}.html')
with open(file_name, 'w+', encoding='utf-8') as f:
f.write(data)
return file_name
def save_data_json(self, counts_per, num, data, url=None):
url = f'# {url}\n\n' if url else ''
with open(os.path.join(self.data_output_dir, f'{num}_{counts_per}.json'), 'w+', encoding='utf-8') as f:
f.write(url + json.dumps(data, indent=2, ensure_ascii=False))
def get_dir_path(self, *paths):
return os.path.join(BASE_DIR, *paths)
def mkdir(self):
self.output_dir = self.get_dir_path(time.strftime("%Y-%m-%d.%H%M%S", time.localtime()))
self.html_output_dir = os.path.join(self.output_dir, 'html')
self.image_output_dir = os.path.join(self.output_dir, 'image')
self.data_output_dir = os.path.join(self.output_dir, 'data')
os.mkdir(self.output_dir)
os.mkdir(self.html_output_dir)
os.mkdir(self.image_output_dir)
os.mkdir(self.data_output_dir)
def run(self):
self.htmls_file = []
self.num = 1
self.mkdir()
if self.ONLY_DIGESTS:
self.start_url = 'https://api.zsxq.com/v2/groups/' + self.GROUP_ID + '/topics?scope=digests&count=' + str(self.COUNTS_PER)
else:
self.start_url = 'https://api.zsxq.com/v2/groups/' + self.GROUP_ID + '/topics?scope=all&count=' + str(self.COUNTS_PER)
url = self.start_url
if self.FROM_DATE_TO_DATE and self.LATE_DATE.strip():
url = self.start_url + '&end_time=' + quote(self.LATE_DATE.strip())
print(f'Start Url: {url}')
self.get_data(url)
print(f'Generating PDF...')
self.generate_pdf(self.htmls_file)
if __name__ == '__main__':
_ = Spider('登录后Cookie中的Token', '登录时使用的User-Agent', '知识星球中的小组ID')
_.run()
# _.regenerate_pdf('2022-02-01.000000')