如何使用form2Json解析通过get请求接收的字符串？

Question

我得到了错误

SyntaxError: Unexpected token: in JSON at position 5759 (line 42)

第一次请求，第二次一切都很好，可能是什么问题以及如何解决？

function myFunction() {
var one = 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var two = "leads%5Bupdate%5D%5B0%5D%5Bid%5D=30983426&leads%5Bupdate%5D%5B0%5D%5Bname%5D=Lead+from%3A+https%3A%2F%2Fmylogoped.online%2F%23rec367114784&leads%5Bupdate%5D%5B0%5D%5Bstatus_id%5D=24809344&leads%5Bupdate%5D%5B0%5D%5Bprice%5D=0&leads%5Bupdate%5D%5B0%5D%5Bresponsible_user_id%5D=7420479&leads%5Bupdate%5D%5B0%5D%5Blast_modified%5D=1637662184&leads%5Bupdate%5D%5B0%5D%5Bmodified_user_id%5D=7420479&leads%5Bupdate%5D%5B0%5D%5Bcreated_user_id%5D=0&leads%5Bupdate%5D%5B0%5D%5Bdate_create%5D=1637661669&leads%5Bupdate%5D%5B0%5D%5Bpipeline_id%5D=1635139&leads%5Bupdate%5D%5B0%5D%5Btags%5D%5B0%5D%5Bid%5D=451580&leads%5Bupdate%5D%5B0%5D%5Btags%5D%5B0%5D%5Bname%5D=tilda&leads%5Bupdate%5D%5B0%5D%5Btags%5D%5B1%5D%5Bid%5D=475269&leads%5Bupdate%5D%5B0%5D%5Btags%5D%5B1%5D%5Bname%5D=%D0%9F%D0%B0%D1%80%D1%82%D0%BD%D0%B5%D1%80%D0%BA%D0%B0&leads%5Bupdate%5D%5B0%5D%5Btags%5D%5B2%5D%5Bid%5D=476169&leads%5Bupdate%5D%5B0%5D%5Btags%5D%5B2%5D%5Bname%5D=%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD-%D0%B7%D0%B0%D0%BD%D1%8F%D1%82%D0%B8%D1%8F&leads%5Bupdate%5D%5B0%5D%5Btags%5D%5B3%5D%5Bid%5D=483228&leads%5Bupdate%5D%5B0%5D%5Btags%5D%5B3%5D%5Bname%5D=%D0%90%D0%BA%D1%86%D0%B8%D1%8F+%2B2&leads%5Bupdate%5D%5B0%5D%5Btags%5D%5B4%5D%5Bid%5D=493262&leads%5Bupdate%5D%5B0%5D%5Btags%5D%5B4%5D%5Bname%5D=%D0%BD%D0%B5%D0%B4%D0%B5%D0%BB%D1%8F+%D0%B2+%D0%BF%D0%BE%D0%B4%D0%B0%D1%80%D0%BE%D0%BA&leads%5Bupdate%5D%5B0%5D%5Baccount_id%5D=24809335&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B0%5D%5Bid%5D=683303&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B0%5D%5Bname%5D=utm_referrer&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B0%5D%5Bcode%5D=UTM_REFERRER&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B1%5D%5Bid%5D=928932&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B1%5D%5Bname%5D=%D0%9C%D0%B5%D0%BD%D0%B5%D0%B4%D0%B6%D0%B5%D1%80+1+%D0%BB%D0%B8%D0%BD%D0%B8%D0%B8&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B1%5D%5Bvalues%5D%5B0%5D%5Bvalue%5D=%D0%9A%D1%80%D1%83%D1%82%D0%BE%D0%B2%D0%B0+%D0%AF%D0%BD%D0%B0&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B1%5D%5Bvalues%5D%5B0%5D%5Benum%5D=4205136&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B2%5D%5Bid%5D=681336&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B2%5D%5Bname%5D=%D0%9E%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD+%D0%9A%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D0%B8&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B2%5D%5Bvalues%5D%5B0%5D%5Bvalue%5D=%D0%97%D0%B2%D1%83%D0%BA%D0%BE%D0%BF%D1%80%D0%BE%D0%B8%D0%B7%D0%BD%D0%BE%D1%88%D0%B5%D0%BD%D0%B8%D0%B5&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B2%5D%5Bvalues%5D%5B0%5D%5Benum%5D=4188232&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B3%5D%5Bid%5D=670612&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B3%5D%5Bname%5D=REFERER&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B3%5D%5Bvalues%5D%5B0%5D%5Bvalue%5D=https%3A%2F%2Fmylogoped.online%2F%23rec367114784&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B4%5D%5Bid%5D=670608&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B4%5D%5Bname%5D=TRANID&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B4%5D%5Bvalues%5D%5B0%5D%5Bvalue%5D=2225828%3A2723274121&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B5%5D%5Bid%5D=670610&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B5%5D%5Bname%5D=FORMID&leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B5%5D%5Bvalues%5D%5B0%5D%5Bvalue%5D=form367114784&leads%5Bupdate%5D%5B0%5D%5Bcreated_at%5D=1637661669&leads%5Bupdate%5D%5B0%5D%5Bupdated_at%5D=1637662184&account%5Bsubdomain%5D=mylogoped&account%5Bid%5D=24809335&account%5B_links%5D%5Bself%5D=https%3A%2F%2Fmylogoped.amocrm.ru";
Logger.log(form2Json(one));
}

这是 form2Json 脚本本身

 /**
 *
 * @file Parse data that could contain objects nested up to 5 levels deep.
 * It's able to deal with both rather complex data, but not fail to decode a URI as simple as id=213.
 * @author Elias Van Ootegem {@link https://stackoverflow.com/users/1230836/elias-van-ootegem}
 * @see https://stackoverflow.com/a/10881657/1393023
 */

/**
 *
 * @param {string} formString
 * @return {object}
 */
function form2Json(formString) {
  'use strict';
  let obj;
  let i;
  let pt;
  let keys;
  let j;
  let ev;
  if (typeof form2Json.br !== 'function') {
    form2Json.br = function(repl) {
      if (repl.indexOf(']') !== -1) {
        return repl.replace(/\](.+?)(,|$)/g, function($1, $2, $3) {
          return form2Json.br($2 + '}' + $3);
        });
      }
      return repl;
    };
  }
  formString =
    '{"' +
    (formString.indexOf('%') !== -1
      ? decodeURIComponent(formString)
      : formString) +
    '"}';
  obj = formString
    .replace(/\=/g, '":"')
    .replace(/&/g, '","')
    .replace(/\[/g, '":{"');
  obj = JSON.parse(
    obj.replace(/\](.+?)(,|$)/g, function($1, $2, $3) {
      return form2Json.br($2 + '}' + $3);
    })
  );
  pt = ('&' + formString)
    .replace(/(\[|\]|\=)/g, '"$1"')
    .replace(/\]"+/g, ']')
    .replace(/&([^\[\=]+?)(\[|\=)/g, '"&["$1]$2');
  pt = (pt + '"').replace(/^"&/, '').split('&');
  for (i = 0; i < pt.length; i++) {
    ev = obj;
    keys = pt[i].match(/(?!:(\["))([^"]+?)(?=("\]))/g);
    for (j = 0; j < keys.length; j++) {
      if (!Object.prototype.hasOwnProperty.call(ev, keys[j])) {
        if (keys.length > j + 1) {
          ev[keys[j]] = {};
        } else {
          ev[keys[j]] = pt[i].split('=')[1].replace(/"/g, '');
          break;
        }
      }
      ev = ev[keys[j]];
    }
  }
  return obj;
}

Answer 1

问题在于表单值

leads[update][0][custom_fields][14][values][0][value]

字符串的以下部分：

leads%5Bupdate%5D%5B0%5D%5Bcustom_fields%5D%5B14%5D%5Bvalues%5D%5B0%5D%5Bvalue%5D=https%3A%2F%2Fmylogoped.online%2Freading%3Futm_source%3Dblogger

将被解码为以下内容：

leads[update][0][custom_fields][14][values][0][value]=https://mylogoped.online/reading?utm_source=blogger

罪名是 url：

https://mylogoped.online/reading?utm_source=blogger

form2Json 尝试使用传统的替换方法从字符串中创建一个 JSON 对象：

formString =
    '{"' +
    (formString.indexOf('%') !== -1
        ? decodeURIComponent(formString)
        : formString) +
    '"}';

obj = formString
    .replace(/\=/g, '":"')
    .replace(/&/g, '","')
    .replace(/\[/g, '":{"');

其中formString 是您传递给它的字符串（在您的情况下为one）。

由于 .replace(/\=/g, '":"') 行，= 表示 URL 参数被转换为 ":"，因此在提供给 JSON.parse() 的字符串中显示：

"leads": {
  "update": {
    "0": {
      "custom_fields": {
        "14": {
          "values": {
            "0": {
              "value": "https://mylogoped.online/reading?utm_source": "blogger"
            }
          }
        }
      }
    }
  }
}

这是一个无效的 JSON 字符串并抛出错误

SyntaxError: Unexpected token : in JSON at position 5759

修复：

您需要先对 URL 中的 = 进行编码，然后再以某种方式将其放入 form2Json

也许将原始输入中的所有= 字符更改为不同的字符串（例如{{ EQUALS_SIGN }}），然后在调用form2Json(one) 之后将{{ EQUALS_SIGN }} 字符串的所有实例替换为=显示在任何地方