如何在 Apache HTTP Server 中转发 POST 请求

Question

有一个客户端是用Nodejs实现的。我魔杖将发布请求发送到Apache HTTP服务器，然后将该请求转发到后端服务器（它位于其他地方）。所以我实现了 Node js 客户端和 Apache 模块。这两者之间的请求和响应是可以的。现在我的问题是如何将此请求从Apache HTTP服务器转发到后端服务器。

Nodejs 客户端.js

var request = require('request');
var userDetails={
    username:"username",
    password:"abc123"
}
var optsSingup = {
    url: "http://localhost:80/a",
    method: "POST",
    headers: {
        "Content-Type": "application/x-www-form-urlencoded"
    },
    form:{
        username:userDetails.username,
        password:userDetails.password,
    }
};
request(optsSingup, function (err, res, body) {
    console.log('error', err);
    //console.log('status', res.statusCode);
    console.log('body', body);
});

Apache 模块（我一直在遵循本教程 http://httpd.apache.org/docs/2.4/developer/modguide.html 示例 mod_example_config.c）。在这里，我将共享模块的处理程序部分。其他部分与mod_example_config.c相同。

 typedef struct {
    const char* key;
    const char* value;
 } keyValuePair;
 static int example_handler(request_rec *r)
{
        formData = readPost(r);
        if (formData) {
        int i;
        for (i = 0; &formData[i]; i++) {
                if (formData[i].key && formData[i].value) {
                        ap_rprintf(r, "%s = %sn", formData[i].key, formData[i].value);
                 } else if (formData[i].key) {
                        ap_rprintf(r, "%sn", formData[i].key);
                } else if (formData[i].value) {
                    ap_rprintf(r, "= %sn", formData[i].value);
                 } else {
                    break;
                }
        }
        }
        return OK;
        }

    keyValuePair* readPost(request_rec* r) {
    apr_array_header_t *pairs = NULL;
    apr_off_t len;
    apr_size_t size;
    int res;
    int i = 0;
    char *buffer;
    keyValuePair* kvp;
    res = ap_parse_form_data(r, NULL, &pairs, -1, HUGE_STRING_LEN);
    if (res != OK || !pairs) return NULL; 
    kvp = apr_pcalloc(r->pool, sizeof(keyValuePair) * (pairs->nelts + 1));
    while (pairs && !apr_is_empty_array(pairs)) {
        ap_form_pair_t *pair = (ap_form_pair_t *) apr_array_pop(pairs);
        apr_brigade_length(pair->value, 1, &len);
        size = (apr_size_t) len;
        buffer = apr_palloc(r->pool, size + 1);
        apr_brigade_flatten(pair->value, buffer, &size);
        buffer[len] = 0;
        kvp[i].key = apr_pstrdup(r->pool, pair->name);
        kvp[i].value = buffer;
        i++;
    }
    return kvp;
    }

Answer 1

实际上这不是正确的

方法。请参阅此问题中的答案 如何为代理请求设置设置处理程序