【发布时间】:2011-09-15 07:08:25
【问题描述】:
因此,我设法使用 Issuu API 提供了一个 URL,以获取有关我上传的最新 PDF 的大部分信息。问题是我希望能够获得下载该 PDF 的 URL。如何确定下载包含以下给定信息的 PDF 的 URL。
这是我在使用 issuu.documents.list 操作和其他一些参数对结果进行排序和限制后得到的响应等等(我提供了 XML 和 JSON 响应,只是为了好玩和咯咯笑):
XML 响应:
<rsp stat="ok">
<result totalCount="257" startIndex="0" pageSize="1" more="true">
<document
username="thecrimsonwhite"
name="09.14.11"
documentId="110914053847-872eaa6e8f844601b0ef763d5332f7eb"
title="The Crimson White"
access="public"
state="A"
type="007000"
orgDocType="pdf"
orgDocName="09.14.11.pdf"
downloadable="true"
origin="singleupload"
pro="F"
rating="0.0"
ratingsAllowed="true"
commentCount="0"
commentsAllowed="true"
bookmarkCount="0"
viewCount="71"
pageCount="8"
gfx="7"
dcla="2|b|8|||810|1476|0|0"
ls="1"
ep="1315976400"
publishDate="2011-09-14T05:00:00.000Z"
description="The Crimson White is a student-created publication that aims to inform, entertain the University of Alabama and surrounding Tuscaloosa areas.">
<tags>
<tag value="news"/>
<tag value="white"/>
<tag value="sports"/>
<tag value="lifestyles"/>
<tag value="opinions"/>
<tag value="crimson"/>
</tags>
</document>
</result>
</rsp>
JSON 响应:
{"rsp":{"_content":{"result":{"totalCount":257,"startIndex":0,"pageSize":1,"more":true,"_content":[{"document":{"username":"thecrimsonwhite","name":"09.14.11","documentId":"110914053847-872eaa6e8f844601b0ef763d5332f7eb","title":"The Crimson White","access":"public","state":"A","type":"007000","orgDocType":"pdf","orgDocName":"09.14.11.pdf","downloadable":true,"origin":"singleupload","pro":"F","rating":0.00000e+0,"ratingsAllowed":true,"commentCount":0,"commentsAllowed":true,"bookmarkCount":0,"viewCount":71,"pageCount":8,"dcla":"2|b|8|||810|1476|0|0","ep":1315976400,"publishDate":"2011-09-14T05:00:00.000Z","description":"The Crimson White is a student-created publication that aims to inform, entertain the University of Alabama and surrounding Tuscaloosa areas.","tags":["news","white","sports","lifestyles","opinions","crimson"]}}]}},"stat":"ok"}}`
此特定文档的下载按钮上的 URL 是 http://document.issuu.com/110914053847-872eaa6e8f844601b0ef763d5332f7eb/original.file?AWSAccessKeyId=AKIAJY7E3JMLFKPAGP7A&Expires=1316073684&Signature=r34xY8RUJYNxTL8X3SSedAWxDxk%3D
AWSAccessKeyID 和 Expires 属性是什么?我知道签名是计算得到的 MD5 和(不过,我不知道它是否与 Signing Requests 的算法有什么不同)。
这对于我正在开发的显示我公司报纸的最新 PDF 版本的应用程序至关重要。
【问题讨论】:
标签: xml json pdf download issuu