提交带有PHP cURL-400错误的Google Search Appliance（GSA）内容提要

因此，我正在尝试为我的web应用程序开发一个模块，它使用PHP cURL将内容提要推送到我们的Google搜索设备（GSA），通过端口19900将数据作为POST信息传输到该设备。根据我在创建提要并向GSA提交提要的文档中所读到的所有内容，这应该可以正常工作，但服务器返回时出现以下错误（非常模糊，基本上没有用处）：

那是个错误

您的客户端发出了格式错误或非法的请求。我们只知道这些

我一直在和帮助在我们姐妹站点上安装GSA的架构师一起解决这个问题，我们无法确定是什么导致了我们的问题。据我们的IT部门称，所有端口都已打开，以便进行此通信（如果关闭，我们将不会收到错误消息），并且我们已验证发送服务器的IP地址在GSA中被列为“允许”。不用说，我们被难住了

以下是传输XML提要的代码：

<?php
$target_url = 'http://gsadomain.com:19900/xmlfeed';

$header = array('Content-Type: multipart/form-data');

$fields = array(
    'feedtype'=>'incremental',
    'datasource'=>'datasourcename',
    'data'=>'@'.realpath('gsa_feed.xml')
);

$ch = curl_init();

curl_setopt($ch, CURLOPT_USERPWD, "gsaadmin:gsaadminpassword");
curl_setopt($ch, CURLOPT_HTTPHEADER,$header);
curl_setopt($ch, CURLOPT_TIMEOUT,120);
curl_setopt($ch, CURLOPT_URL,$target_url);
curl_setopt($ch, CURLOPT_POST,1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($fields));

$return = curl_exec($ch);

if (curl_errno($ch)) {
    $msg = curl_error($ch);
}

curl_close ($ch);

echo $return;
?>

下面是我们试图提交的XML：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE gsafeed PUBLIC "-//Google//DTD GSA Feeds//EN" "http://this.is.the.ip/gsafeed.dtd">
<gsafeed>
    <header>
        <datasource>datasource</datasource>
        <feedtype>incremental</feedtype>
    </header>
    <group>
        <record url="http://website.com/mod/view.php?id=15903" mimetype="text/html" last-modified="Thu, 14 Aug 2014 18:53:00 GMT">
            <acl inheritance-type="and-both-permit">
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">customers</principal>
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">partners</principal>
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">employees</principal>
            </acl>
            <metadata>
                <meta name="type" content="module" />
                <meta name="id" content="1" />
                <meta name="name" content="Module for Everyone" />
                <meta name="course_id" content="655" />
            </metadata>
            <content>
                This is the description of the Module for Everyone.
        </content>
        </record>
        <record url="http://website.com/mod/view.php?id=15904" mimetype="text/html" last-modified="Thu, 14 Aug 2014 18:53:00 GMT">
            <acl inheritance-type="and-both-permit">
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">employees</principal>
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">partners</principal>
            </acl>
            <metadata>
                <meta name="type" content="module" />
                <meta name="id" content="2" />
                <meta name="name" content="Module for Partners" />
                <meta name="course_id" content="655" />
            </metadata>
            <content>
                This is the description of the Module for Partners.
        </content>
        </record>
        <record url="http://website.com/mod/view.php?id=15905" mimetype="text/html" last-modified="Thu, 14 Aug 2014 18:53:00 GMT">
            <acl inheritance-type="and-both-permit">
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">employees</principal>
            </acl>
            <metadata>
                <meta name="type" content="module" />
                <meta name="id" content="3" />
                <meta name="name" content="Module for Employees" />
                <meta name="course_id" content="655" />
            </metadata>
            <content>
                This is the description of the Module for Employees.
        </content>
        </record>
        <record url="http://website.com/course/view.php?id=655#section-1" mimetype="text/html" last-modified="Thu, 14 Aug 2014 18:53:00 GMT">
            <acl inheritance-type="and-both-permit">
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">customers</principal>
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">partners</principal>
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">employees</principal>
            </acl>
            <metadata>
                <meta name="type" content="topic" />
                <meta name="id" content="1" />
                <meta name="name" content="Course Topic for Everyone" />
                <meta name="course_id" content="655" />
            </metadata>
            <content>
                This is the description of the Course Topic for All Audiences.
        </content>
        </record>
        <record url="http://website.com/course/view.php?id=655#section-2" mimetype="text/html" last-modified="Thu, 14 Aug 2014 18:53:00 GMT">
            <acl inheritance-type="and-both-permit">
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">employees</principal>
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">partners</principal>
            </acl>
            <metadata>
                <meta name="type" content="topic" />
                <meta name="id" content="2" />
                <meta name="name" content="Course Topic for Partners" />
                <meta name="course_id" content="655" />
            </metadata>
            <content>
                This is the description of the Course Topic for Partners.
        </content>
        </record>
        <record url="http://website.com/course/view.php?id=655#section-3" mimetype="text/html" last-modified="Thu, 14 Aug 2014 18:53:00 GMT">
            <acl inheritance-type="and-both-permit">
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">employees</principal>
            </acl>
            <metadata>
                <meta name="type" content="topic" />
                <meta name="id" content="3" />
                <meta name="name" content="Course Topic for Employees" />
                <meta name="course_id" content="655" />
            </metadata>
            <content>
                This is the description of the Course Topic for Employees.
        </content>
        </record>
        <record url="http://website.com/course/view.php?id=655" mimetype="text/html" last-modified="Thu, 14 Aug 2014 18:53:00 GMT">
            <acl inheritance-type="and-both-permit">
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">customers</principal>
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">partners</principal>
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">employees</principal>
            </acl>
            <metadata>
                <meta name="type" content="course" />
                <meta name="id" content="655" />
                <meta name="name" content="Course for Everyone" />
                <meta name="course_id" content="655" />
            </metadata>
            <content>
                This is the description of the Course for Everyone.
        </content>
        </record>
        <record url="http://website.com/course/view.php?id=656" mimetype="text/html" last-modified="Thu, 14 Aug 2014 18:53:00 GMT">
            <acl inheritance-type="and-both-permit">
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">employees</principal>
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">partners</principal>
            </acl>
            <metadata>
                <meta name="type" content="course" />
                <meta name="id" content="656" />
                <meta name="name" content="Course for Partners" />
                <meta name="course_id" content="656" />
            </metadata>
            <content>
                This is the description of the Course for Partners.
        </content>
        </record>
        <record url="http://website.com/course/view.php?id=657" mimetype="text/html" last-modified="Thu, 14 Aug 2014 18:53:00 GMT">
            <acl inheritance-type="and-both-permit">
                <principal scope="group" access="permit" namespace="Default" case-sensitivity-type="everything-case-insensitive">employees</principal>
            </acl>
            <metadata>
                <meta name="type" content="course" />
                <meta name="id" content="657" />
                <meta name="name" content="Course for Employees" />
                <meta name="course_id" content="657" />
            </metadata>
            <content>
                This is the description of the Course for Employees.
        </content>
        </record>
    </group>
</gsafeed>

数据源
增量的

编辑2：成功！见下面我的答案。关键是让cURL处理$fields数组的编码，并传递文件内容，而不仅仅是文件路径。
我不熟悉GSA API，但似乎您实际上没有发送任何XML数据。为
数据
参数发送的字符串值类似于
@/path/to/gsa_feed.xml
。我想您实际上需要发布XML，对吗

也许更像

$fields = array(
    'feedtype'=>'incremental',
    'datasource'=>'datasourcename',
    'data'=> file_get_contents(realpath('gsa_feed.xml'))
);

因此，长话短说，我能够正确地提交提要，这一切都与cURL如何处理数据有关。无论是我，还是与我一起工作试图提交提要的工程师，都没有太多的PHP cURL插件经验，也没有太多如何让GSA接受输入字段的经验。部分感谢、the、the和Mike的帮助，我产生了以下代码：

<?php
$target_url = 'http://gsadomain.com:19900/xmlfeed';

$header = array('Content-Type: multipart/form-data');

$fields = array(
    'feedtype'=>'incremental',
    'datasource'=>'datasourcename',
    'data'=>file_get_contents(realpath('gsa_feed.xml'))
);

$ch = curl_init();

curl_setopt($ch, CURLOPT_USERPWD, "gsaadmin:gsaadminpassword");
curl_setopt($ch, CURLOPT_HTTPHEADER,$header);
curl_setopt($ch, CURLOPT_TIMEOUT,120);
curl_setopt($ch, CURLOPT_URL,$target_url);
curl_setopt($ch, CURLOPT_POST,1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);

$return = curl_exec($ch);

if (curl_errno($ch)) {
    $msg = curl_error($ch);
}

curl_close ($ch);

echo $return;
?>



困难在于http_build_query（）方法，该方法试图为它执行cURL的工作，并且没有正确设置POST数据的边界

我们后来在XML中的一些字段上也遇到了一些困难，但这主要是因为我们忘记了用str_替换符号、单引号和双引号。一旦这些都处理好了，XML就被正确地解析了，我们让所有的东西都运行起来。
我只是试了一下，没有任何运气。所讨论的PHP脚本构建xml文件，因此最初，我只是将写入文件的字符串作为“$fields=array”（'fieldtype'=>'incremental'，'datasource'=>'datasourcename'，'data'=>$string）；”当这不起作用时，我切换到@path/to/gsa_feed.xml方法（考虑到我在文档中看到的内容，您的建议可能正是我想要的。@JoshC您可以在您的问题中链接API文档。从您展示的PHP中，没有任何地方可以构建XML文件。您展示的只是一个简单的带有几个数据字段的cURL POST，其中一个字段是this string in question。这里没有任何其他功能。@Mark Brant我刚刚编辑了原始帖子，其中包含了指向谷歌开发者指南的链接。不幸的是，它在设置自己的提要脚本方面没有提供太多指导。这里是链接：