Question

有一个在Nodejs中实现的客户端。我将发送请求发送到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都可以。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 client.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（我一直在关注本教程http://httpd.apache.org/docs/2.4/developer/modguide.html示例 mod_example_config.c ）。在这里，我将共享我的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 = %s\n", formData[i].key, formData[i].value);
                 } else if (formData[i].key) {
                        ap_rprintf(r, "%s\n", formData[i].key);
                } else if (formData[i].value) {
                    ap_rprintf(r, "= %s\n", 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。请在此问题How to set a Set Handler for proxy request

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如何在Apache HTTP Server中转发POST请求

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