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rename responseWrite to cachingResponseWriter
2020-04-15, Gary Kramlich
4fc4d4c7aac6
rename responseWrite to cachingResponseWriter
//go:generate esc -o files.go -pkg hgweb -include files\/.+ -prefix files/ .
package
hgweb
import
(
"io/ioutil"
"net/http"
"net/http/cgi"
"os"
"text/template"
log
"github.com/sirupsen/logrus"
"bitbucket.org/rw_grim/hgkeeper/access"
)
type
Server
struct
{
listenAddr
string
server
*
http
.
Server
cgiPath
string
cacheSize
int
}
func
NewServer
(
listenAddr
string
,
cacheSize
int
)
(
*
Server
,
error
)
{
return
&
Server
{
listenAddr
:
listenAddr
,
cacheSize
:
cacheSize
,
server
:
&
http
.
Server
{
Addr
:
listenAddr
,
},
},
nil
}
func
(
s
*
Server
)
createCGI
()
error
{
cgiPath
,
err
:=
ioutil
.
TempFile
(
""
,
"hgkeeper-hgweb-*.cgi"
)
if
err
!=
nil
{
return
err
}
defer
cgiPath
.
Close
()
// make the cgi file executable
if
err
:=
cgiPath
.
Chmod
(
0755
);
err
!=
nil
{
return
err
}
// create a template based for the cgi file
t
:=
template
.
Must
(
template
.
New
(
"cgi"
).
Parse
(
FSMustString
(
false
,
"/hgweb.cgi"
)))
// create our data
data
:=
map
[
string
]
string
{
"HGWEB_CONFIG"
:
access
.
HgwebConfigPath
(),
}
if
err
:=
t
.
Execute
(
cgiPath
,
data
);
err
!=
nil
{
return
err
}
s
.
cgiPath
=
cgiPath
.
Name
()
return
nil
}
func
(
s
*
Server
)
Listen
()
error
{
if
err
:=
s
.
createCGI
();
err
!=
nil
{
return
err
}
cache
,
err
:=
newCache
(
s
.
cacheSize
)
if
err
!=
nil
{
return
err
}
s
.
server
.
Handler
=
cache
.
middleware
(
&
cgi
.
Handler
{
Path
:
s
.
cgiPath
})
log
.
Infof
(
"http listening on %s"
,
s
.
listenAddr
)
return
s
.
server
.
ListenAndServe
()
}
func
(
s
*
Server
)
Close
()
{
if
err
:=
os
.
Remove
(
s
.
cgiPath
);
err
!=
nil
{
log
.
Warnf
(
"failed to remove temporary cgi file %q: %v"
,
s
.
cgiPath
,
err
)
}
if
err
:=
s
.
server
.
Close
();
err
!=
nil
{
log
.
Warnf
(
"failed to shutdown http server: %v"
,
err
)
}
}