我正在.pdf
使用 nginx 网络服务器提供文件服务。并且.pdf
根据情况使用重写规则设置文件的文件名title args
。
我想做的是example.com
在文件名中添加我的域名
1. 如果其中title
包含 var ,则使用var 数据作为文件名。example.com
title
例如
URL : http://example.com/pdf/0D2E8C9DC2F732A6ACC6150811515F697E3C376C.pdf?title=[example.com]ebook
Filename : [example.com]ebook.pdf
2. 如果title
var 不包含example.com
,则将文件名设为[example.com]title var.pdf
例如
URL : http://example.com/pdf/0D2E8C9DC2F732A6ACC6150811515F697E3C376C.pdf?title=ebook
Filename : [example.com]ebook.pdf
3. 如果未设置标题,则使用文件名作为[example.com]hash.pdf
文件名。
例如
URL : http://example.com/pdf/0D2E8C9DC2F732A6ACC6150811515F697E3C376C.pdf
Filename : [example.com]0D2E8C9DC2F732A6ACC6150811515F697E3C376C.pdf
我怎样才能实现这样的目标?
我当前的配置如下
#pdf download block
location ~* /pdf/([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F]+)\.pdf$ {
#if title is not set then use hash.pdf as filename
if ( $arg_title = '' ) {
add_header Content-Disposition 'attachment; filename="[example.com]$1$2$3$4$5$6.pdf"';
}
add_header Content-Disposition 'attachment; filename="[example.com]$arg_title.pdf"';
alias /var/www/example.com/pdf/$1/$2/$3/$4/$5/$1$2$3$4$5$6.pdf;
expires 1y;
}
上述代码仅在未设置 title var 时才能正常工作,但如果我设置 title var,[example.com]ebook.pdf
它会再次添加域名,最终文件名将变为
[example.com][example.com]ebook.pdf
答案1
据我所知,我们可以假设,如果[example.com]
变量开头有一个子字符串$arg_title
,我们可以安全地将其删除。所以这是您需要的配置:
location ~* /pdf/([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F]+)\.pdf$ {
#First of all we should put pdf path from the request into a variable,
#since $1,$2,$n would contain other data later:
set $hashpath $1/$2/$3/$4/$5/$1$2$3$4$5$6;
#Same applies to hash title:
set $hashtitle $1$2$3$4$5$6;
#Now we try to get the title argument without getting [example.com] in the beginning:
if ( $arg_title ~ "^(\[example\.com\])?(.*)$")
{
#This way if title contained [example.com], it would go to $1 variable, while $2 has our new cleaned title:
set $pdftitle $2;
}
#now we check if title was empty:
if ( $arg_title = '' ) {
#and assign our title that $hashtitle variable we got from the request earlier:
set $pdftitle $hashtitle;
}
#also we check if title has only [example.com] without anything else:
if ( $arg_title = '[example.com]' ) {
set $pdftitle $hashtitle;
}
#After that we can safely put [example.com] in front of our filename, without worrying that there would be a double:
add_header Content-Disposition 'attachment; filename="[example.com]$pdftitle.pdf"';
alias /var/www/example.com/pdf/$hashpath.pdf;
expires 1y;
}
与 nginx 1.9.12 配合良好:
实际文件位于这里