修改 WHMCS 订单模板，使之自动填充选项内容
WHMCS 下单 Dedicated/VPS Server 产品默认要填几个选项，包括设置主机名、密码、NS 地址，用户体验很是不好，徒增用户困扰与麻烦。研究了下如何自动填充内容，本想去掉选项验证，提交后再生成内容值。但似乎不太容易要编辑核心文件，强行去除改动太大，还是直接在页面生成好了。
创建 WHMCS 订单模板主题
先介绍 WHMCS 产品订购页面的模板文件路径：WHMCS根目录/templates/orderforms（目录下有多个样式主题，默认使用standard_cart），里面的模板文件所对应各个页面如下。
| 模板文件 | 对应页面 |
|---|---|
| products.tpl | 查看产品类别和所包含的产品 |
| adddomain.tpl | 域名注册订单第一步骤 |
| addons.tpl | 查看产品附加服务（已登录用户） |
| domainrenewals.tpl | 显示用户帐户中的域名，以提供续订 |
| configureproductdomain.tpl | 选择域名（附加到产品的域名） |
| domainoptions.tpl | 显示域名可用性检查结果 |
| configureproduct.tpl | 查看产品配置信息（未添加购物车之前） |
| configuredomains.tpl | 域名配置，设置 NS 地址或自定义字段 |
| ordersummary.tpl | 查看购物车内容和产品订购总额 |
| viewcart.tpl | 显示订单内容开始结帐流程 |
| login.tpl | 登录已注册账号 |
| complete.tpl | 结账流程的最后步骤 |
| 注：上述模板文件为订购流程各主要页面，目录下还细分有页面加载的模块 .tpl 文件。 | |
为避免后续升级程序可能丢失所做的修改，建议创建自定义主题使用（不用创建一个完整主题，要修改哪个页面就创建哪个模板文件，其它页面继承使用父模板文件）。
创建自定义主题目录，假设名称为 custom_cart。红色字符为 Web 目录路径自行修改。
mkdir /var/www/whmcs/templates/orderforms/custom_cart
接着在目录下创建 theme.yaml 配置文件指定父主题，例如继承默认主题，内容如下。
config:
parent: standard_cart
拷贝要修改的模板文件到自定义主题目录下，例如要修改 configureproduct.tpl 这个模板页面。
cp /var/www/whmcs/templates/orderforms/standard_cart/configureproduct.tpl /var/www/whmcs/templates/orderforms/custom_cart/configureproduct.tpl
到 WHMCS 里启用自定义主题，在 Setup -> General Settings -> Ordering 选项卡下设置 Default Order Form Template 。或者在指定产品组里设置使用，路径 Setup -> Products/Services -> Products/Services -> 编辑产品组 -> Order Form Template。
随机生成 Host Name 选项值
主机名这里用 uniqid() 函数生成微秒级时间戳，考虑多线程和基于系统时间可能影响唯一性（实际重复可能性极低，uniqid() 时间戳精确到百万分之一秒）， 在字符串前面添加两位随机数（由 mt_rand(10,99) 生成）。添加蓝色参数设置字段不可编辑和禁用浏览器自动完成功能。
<div class="col-sm-6">
<div class="form-group">
<label for="inputHostname">{$LANG.serverhostname}</label>
<input type="text" name="hostname" class="form-control" id="inputHostname" value="host.{uniqid(mt_rand(10,99),false)}.com" readonly="readonly" autocomplete="off" placeholder="servername.yourdomain.com">
</div>
</div>
如果想用 WHMCS 内置的 Smarty 模板系统保留变量生成随机数，可以用 {$smarty.now} 生成 UNIX 时间戳（精确到秒，配合 date_format 还可转换友好时间格式）。
如果不希望在服务器端用 PHP 生成随机数，也可以用 JS 代码生成，这里有几个简单示例。
随机生成 Root Password 选项值
由于密码需考虑不可预测性，也要尽可能随机复杂，所以不能用时间戳生成。可以通过随机+散列+截取函数生成，例如由特定范围随机数转换为 md5 字符串，再从其中截取 12 位字符。
<?php echo substr(md5(mt_rand(100000, 999999)), 0, 12); ?>
如果要生成复杂一些的（包含大写字母和特殊字符），可以用 str_shuffle() 函数随机打乱预设字符（其随机算法因 PHP 版本而有不同， PHP 7.1 开始由默认的 libc rand 改为了 Mersenne twister），再从其中截取所需长度的字符串。这种方法生成的密码每个字符只会出现一次（其中删除了容易混淆的字符），若要增加可能性可以重复添加预设字符。
<?php echo substr(str_shuffle("2346789bcdfghjkmnpqrtvwxyzBCDFGHJKLMNPQRTVWXYZ!@#$%^&*~()-_{}+="),0,12); ?>
上面两种都是比较简单的密码生成方法，可以满足一般程度的安全要求。若要追求更安全的随机值，可以使用 random_bytes() 或 openssl_random_pseudo_bytes() 函数生成。前者要求 PHP 7，后者要求 PHP 5。
修改方法和之前一样，模板文件里找到密码 input 元素，内容值里设置 PHP 密码生成函数。
<div class="col-sm-6">
<div class="form-group">
<label for="inputRootpw">{$LANG.serverrootpw}</label>
<input type="password" name="rootpw" class="form-control" id="inputRootpw" value="{substr(str_shuffle('2346789bcdfghjkmnpqrtvwxyzBCDFGHJKLMNPQRTVWXYZ!@#$%^&*~()-_{}+='),0,12)}" readonly="readonly" autocomplete="off">
</div>
</div>
设置 Name Server 选项值
NS 地址对一般只销售主机产品的商家来说没什么用，因此直接设置一个固定默认值就行。
<div class="col-sm-6">
<div class="form-group">
<label for="inputNs1prefix">{$LANG.serverns1prefix}</label>
<input type="text" name="ns1prefix" class="form-control" id="inputNs1prefix" value="ns1.example.com" readonly="readonly" autocomplete="off" placeholder="ns1">
</div>
</div>
<div class="col-sm-6">
<div class="form-group">
<label for="inputNs2prefix">{$LANG.serverns2prefix}</label>
<input type="text" name="ns2prefix" class="form-control" id="inputNs2prefix" value="ns2.example.com" readonly="readonly" autocomplete="off" placeholder="ns2">
</div>
</div>
隐藏 Configure Server 选项内容块
完成修改后刷新页面查看工作是否正常，没问题就添加 CSS 样式隐藏页面选项内容。
<div class="sub-heading" style="display: none;"> <span>{$LANG.cartconfigserver}</span> </div> <div class="field-container" style="display: none;"> ... </div>
Hi, very nice website, cheers!
——————————————————
Need cheap and reliable hosting? Our shared plans start at $10 for an year and VPS plans for $6/Mo.
——————————————————
Check here: https://www.reliable-webhosting.com/
buy careprost from canada https://carepro1st.com/
generic dapoxetine cheap took dapoxetine https://salemeds24.wixsite.com/dapoxetine
ivermectin dosage calculator https://ivermectin.webbfenix.com/
hydroxychloroquine sulfate side effects https://hydroxychloroquine.webbfenix.com/
hydroxychloroquine stock https://hydroxychloroquine.mlsmalta.com/
buy hydroxychloroquine from canada https://hhydroxychloroquine.com/
what is the cost of vidalista https://vidalista.mlsmalta.com/
stromectol dosage for scabies https://ivermectin.mlsmalta.com/
dapoxetine testimonials reviews https://dapoxetine.confrancisyalgomas.com/
typical vidalista dosage https://vidalista40mg.mlsmalta.com/
cialis doses available https://wisig.org/
talk to doctor online free https://medpills.bee-rich.com/
how to use albuterol inhaler https://amstyles.com/
hydroxychloroquine 200mg 60 tablets https://hydroxychloroquinee.com/
price for priligy 60mg https://ddapoxetine.com/
female cialis tadalafil
amateur cams
average cost of plaquenil
auto and home insurance quotes comparison
geico insurance quote online for auto
online pharmacy dubai
cost of sildenafil 100mg tablets
post office life insurance
payday lending
geico home insurance
starter loans to build credit
who manufactures hydroxychloroquine in the us https://hydroxychloroquine.wisig.org/
who manufactures hydroxychloroquine in the us https://hydroxychloroquine.mymvrc.org/
online viagra order canada
payday loans louisiana
tadalafil 5mg price in india https://tadalafil.cleckleyfloors.com/
how to get prescriptions without a doctor https://buymeds.mlsmalta.com/
how to get prescriptions without a doctor https://edmeds.buszcentrum.com/
tadalafil vs vidalista review https://vidalista.buszcentrum.com/
viagra 200mg pills generic https://viaplz.com/
viagra without a doctor prescription usa http://viaaagra.com/
how to get a cialis prescription https://cialis.advantagetriseal.com/
how to get a cialis prescription https://cialis.grassfed.us/
reasons for cialis not working https://cialis.buszcentrum.com/
reasons for cialis not working https://cialis.studiowestinc.com/
Hi there, I enjoy reading all of your article.
I wanted to write a little comment to support you. http://antiibioticsland.com/Flagyl_ER.htm
Great weblog here! Additionally your site so much up fast!
What host are you the usage of? Can I get your associate link on your
host? I desire my site loaded up as fast as yours lol http://herreramedical.org/aurogra
Hello, this weekend is nice designed for me, since this moment i am reading this
fantastic educational post here at my house.
Feel free to surf to my blog post :: Oliver Lach
[Rosalind]
After I originally commented I appear to have clicked on the -Notify me when new comments are added- checkbox and from now on each time a comment is added I receive 4 emails with the same comment.
Perhaps there is a means you can remove me
from that service? Thanks a lot!
Here is my webpage: Sharika Dangerfield
Wow, this piece of writing is pleasant, my sister is
analyzing these kinds of things, so I am going to inform her.
My web page: Maricela Egan – Sherrill,
Hi there! Someone in my Facebook group shared this website
with us so I came to look it over. I’m definitely loving the information. I’m book-marking
and will be tweeting this to my followers! Great blog and excellent style and design.
my web-site … grill lamb chops – chickengrilling.blogspot.com,
you are actually a good webmaster. The site loading pace is incredible.
It seems that you’re doing any distinctive trick. In addition, The
contents are masterpiece. you’ve done a fantastic task on this
subject!
My blog :: Edythe Havener
hello!,I like your writing very so much! percentage we communicate extra about your post on AOL?
I need a specialist in this house to solve my problem.
May be that is you! Looking forward to look you.
Here is my web page; Janette Mysliwiec
Good day! I know this is somewhat off topic but I was wondering
if you knew where I could locate a captcha plugin for my comment
form? I’m using the same blog platform as yours and I’m having problems
finding one? Thanks a lot!
my homepage: Sherilyn Haefner, Charlie,
Hi there it’s me, I am also visiting this site daily,
this site is truly good and the visitors are genuinely sharing pleasant thoughts.
my page :: Financial Investment Secrets (Alphonso)
Wow! After all I got a weblog from where I can genuinely take
useful data concerning my study and knowledge.
my web blog; everything you need for home fitness training