如何使用Python向OneNote发送多部分PDF请求 [英] How to Use Python to Send a Multipart PDF Request to OneNote
问题描述
我正在尝试使用Python将PDF上传到OneNote。根据OneNote API，我需要发布这样的请求：
I'm trying to upload a PDF to OneNote using Python. According to the OneNote API, I need to post a request like this:
Content-Type:multipart/form-data; boundary=MyAppPartBoundary
Authorization:bearer tokenString
--MyAppPartBoundary
Content-Disposition:form-data; name="Presentation"
Content-type:text/html
<!DOCTYPE html>
<html>
<head>
<title>A page with an embedded and displayed PDF file</title>
</head>
<body>
<p>Attached is the lease agreement for the expanded offices!</p>
<object
data-attachment="OfficeLease.pdf"
data="name:OfficeLeasePartName"
type="application/pdf" />
<p>Here's the contents of our new lease.</p>
<img data-render-src="name:OfficeLeasePartName" width="900"/>
</body>
</html>
--MyAppPartBoundary
Content-Disposition:form-data; name="OfficeLeasePartName"
Content-type:application/pdf
... PDF binary data ...
--MyAppPartBoundary--
但是，我不知道如何在Python中执行多部分请求。我可以做一个基本的文本/ html请求就好了：
However, I have no idea how to do a multipart request in Python. I can do a basic text/html request just fine though:
url = ROOT_URL+"pages"
headers = {"Content-Type":"text/html",
"Authorization" : "bearer " + access_token}
# Format html (title & text)
html = "<html><head><title>" + title + "</title></head>"
html += "<body><p>" + text + "</p></body></html>"
# Send request
session = requests.Session()
request = requests.Request(method="POST", headers=headers,
url=url, data=html)
prepped = request.prepare()
response = session.send(prepped)
如何修改多部分的Python代码？
How would I modify that Python code for multi-part?
[###########更新############]
[########### UPDATE ############]
根据jayongg的建议，我尝试了以下方法。当我这样做时，我得到的错误从页面创建请求要求内容为多部分，带有演示文稿部分切换为多部分有效负载格式错误。我想这是因为我实际上并没有在某处附加pdf文件？我也不确定OneNote api示例中的OfficeLease.pdf和OfficeLeasePartName之间有什么区别。
Based on jayongg's suggestion, I tried the following. When I do, the error I get switches from "Page create requests require the content to be multipart, with a presentation part" to "The multi-part payload was malformed." I think it's because I'm not actually attaching the pdf file somewhere? I'm also not sure what's the difference between OfficeLease.pdf in the OneNote api example and OfficeLeasePartName.
这是我当前的代码：
url = ROOT_URL+"pages"
path = os.path.join(pdfFolder, pdfName + ".pdf")
headers = {"Content-Type":"multipart/form-data; boundary=MyAppPartBoundary",
"Authorization" : "bearer " + access_token}
f = open(path, "rb").read()
txt = """--MyAppPartBoundary
Content-Disposition:form-data; name="Presentation"
Content-type:text/html
<!DOCTYPE html>
<html>
<head>
<title>A page with an embedded and displayed PDF file</title>
</head>
<body>
<p>Attached is the lease agreement for the expanded offices!</p>
<object
data-attachment="Sample5.pdf"
data="name:Sample5"
type="application/pdf" />
<p>Here's the contents of our new lease.</p>
<img data-render-src="name:Sample5" width="900"/>
</body>
</html>
--MyAppPartBoundary
Content-Disposition:form-data; name="OfficeLeasePartName"
Content-type:application/pdf
""" + f + """
--MyAppPartBoundary--"""
session = requests.Session()
request = requests.Request(method="POST", headers=headers,
url=url, data=txt)
prepped = request.prepare()
response = session.send(prepped)
[######### #UPDATE 2 ##############]
[########## UPDATE 2 ##############]
如果我使代码更简单，它仍然会导致错误的错误：
If I make the code even simpler, it still results in a malformed error:
headers = {"Content-Type":"multipart/form-data; boundary=MyAppPartBoundary",
"Authorization" : "bearer " + access_token}
txt = """--MyAppPartBoundary
Content-Disposition:form-data; name="Presentation"
Content-type:text/html
<!DOCTYPE html>
<html>
<head>
<title>One Note Text</title>
</head>
<body>
<p>Hello OneNote World</p>
</body>
</html>
--MyAppPartBoundary--
"""
session = requests.Session()
request = requests.Request(method="POST", headers=headers,
url=url, data=txt)
我也是尝试过这样。同样的事情：
I've also tried like this. Same thing:
headers = {"Content-Type":"multipart/form-data; boundary=MyAppPartBoundary",
"Authorization" : "bearer " + access_token}
txt = """<!DOCTYPE html>
<html>
<head>
<title>One Note Text</title>
</head>
<body>
<p>Hello OneNote World</p>
</body>
</html>"""
files = {'file1': ('Presentation', txt, 'text/html')}
session = requests.Session()
request = requests.Request(method="POST", headers=headers,
url=url, files=files)
prepped = request.prepare()
response = session.send(prepped)
推荐答案
结果是，Python将空行编码为\ n，但OneNote需要\\\\ n。在最终边界之后还需要一个空行（\\\\ n）。最后，它不能在Content-Type和Content-Disposition行的正文中有任何前导空格（没有缩进）。（每个Content-Disposition行后面也应该有一个空行。）
The answer it turns out is that Python encodes blank lines as "\n" but OneNote requires "\r\n". It also requires a blank line ("\r\n") after the final boundary. Finally, it can't have any leading whitespace in the body (no indents) for the Content-Type and Content-Disposition lines. (There should also be a blank line after each Content-Disposition line.)
例如，如果这是正文：
"""--MyBoundary
Content-Type: text/html
Content-Disposition: form-data; name="Presentation"
Some random text
--MyBoundary
Content-Type: text/text
Content-Disposition: form-data; name="more"; filename="more.txt"
More text
--MyBoundary--
"""
它应该用字符串表示
'--MyBoundary\r\nContent-Type: text/html\r\nContent-Disposition: form-data; name="Presentation"\r\n\r\nSome random text\r\n--MyBoundary\r\nContent-Type: text/text\r\nContent-Disposition: form-data; name="more"; filename="more.txt"\r\n\r\nMore text\r\n--MyBoundary--\r\n'
哪个可以只需在三个引号内键入文本（在最后的字符串中自动创建\ n，只要有空行），然后将\ n替换为\\ n：
which can be made just by typing the text inside three """ quotes (which will automatically create \n in the final string wherever there's a blank line) and then replacing the "\n" with "\r\n":
body = body.replace("\n", "\r\n")
标题为：
headers = {"Content-Type":"multipart/form-data; boundary=MyBoundary",
"Authorization" : "bearer " + access_token}
最后，你会像这样发布一个电话：
Finally, you would POST the call like this:
session = requests.Session()
request = requests.Request(method="POST", headers=headers,
url=url, data=body)
prepped = request.prepare()
response = session.send(prepped)
这篇关于如何使用Python向OneNote发送多部分PDF请求的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
