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Commit
d6d3d057
authored
Jan 26, 2026
by
Seefs
Committed by
GitHub
Jan 26, 2026
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Plain Diff
Merge pull request #2735 from seefs001/feature/header-throughpass
feat: header passthrough
parent
23206840
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Showing
1 changed file
with
50 additions
and
10 deletions
+50
-10
relay/channel/api_request.go
+50
-10
No files found.
relay/channel/api_request.go
View file @
d6d3d057
...
@@ -38,9 +38,46 @@ func SetupApiRequestHeader(info *common.RelayInfo, c *gin.Context, req *http.Hea
...
@@ -38,9 +38,46 @@ func SetupApiRequestHeader(info *common.RelayInfo, c *gin.Context, req *http.Hea
}
}
}
}
// processHeaderOverride 处理请求头覆盖,支持变量替换
const
clientHeaderPlaceholderPrefix
=
"{client_header:"
// 支持的变量:{api_key}
func
processHeaderOverride
(
info
*
common
.
RelayInfo
)
(
map
[
string
]
string
,
error
)
{
func
applyHeaderOverridePlaceholders
(
template
string
,
c
*
gin
.
Context
,
apiKey
string
)
(
string
,
bool
,
error
)
{
trimmed
:=
strings
.
TrimSpace
(
template
)
if
strings
.
HasPrefix
(
trimmed
,
clientHeaderPlaceholderPrefix
)
{
afterPrefix
:=
trimmed
[
len
(
clientHeaderPlaceholderPrefix
)
:
]
end
:=
strings
.
Index
(
afterPrefix
,
"}"
)
if
end
<
0
||
end
!=
len
(
afterPrefix
)
-
1
{
return
""
,
false
,
fmt
.
Errorf
(
"client_header placeholder must be the full value: %q"
,
template
)
}
name
:=
strings
.
TrimSpace
(
afterPrefix
[
:
end
])
if
name
==
""
{
return
""
,
false
,
fmt
.
Errorf
(
"client_header placeholder name is empty: %q"
,
template
)
}
if
c
==
nil
||
c
.
Request
==
nil
{
return
""
,
false
,
fmt
.
Errorf
(
"missing request context for client_header placeholder"
)
}
clientHeaderValue
:=
c
.
Request
.
Header
.
Get
(
name
)
if
strings
.
TrimSpace
(
clientHeaderValue
)
==
""
{
return
""
,
false
,
nil
}
// Do not interpolate {api_key} inside client-supplied content.
return
clientHeaderValue
,
true
,
nil
}
if
strings
.
Contains
(
template
,
"{api_key}"
)
{
template
=
strings
.
ReplaceAll
(
template
,
"{api_key}"
,
apiKey
)
}
if
strings
.
TrimSpace
(
template
)
==
""
{
return
""
,
false
,
nil
}
return
template
,
true
,
nil
}
// processHeaderOverride applies channel header overrides, with placeholder substitution.
// Supported placeholders:
// - {api_key}: resolved to the channel API key
// - {client_header:<name>}: resolved to the incoming request header value
func
processHeaderOverride
(
info
*
common
.
RelayInfo
,
c
*
gin
.
Context
)
(
map
[
string
]
string
,
error
)
{
headerOverride
:=
make
(
map
[
string
]
string
)
headerOverride
:=
make
(
map
[
string
]
string
)
for
k
,
v
:=
range
info
.
HeadersOverride
{
for
k
,
v
:=
range
info
.
HeadersOverride
{
str
,
ok
:=
v
.
(
string
)
str
,
ok
:=
v
.
(
string
)
...
@@ -48,12 +85,15 @@ func processHeaderOverride(info *common.RelayInfo) (map[string]string, error) {
...
@@ -48,12 +85,15 @@ func processHeaderOverride(info *common.RelayInfo) (map[string]string, error) {
return
nil
,
types
.
NewError
(
nil
,
types
.
ErrorCodeChannelHeaderOverrideInvalid
)
return
nil
,
types
.
NewError
(
nil
,
types
.
ErrorCodeChannelHeaderOverrideInvalid
)
}
}
// 替换支持的变量
value
,
include
,
err
:=
applyHeaderOverridePlaceholders
(
str
,
c
,
info
.
ApiKey
)
if
strings
.
Contains
(
str
,
"{api_key}"
)
{
if
err
!=
nil
{
str
=
strings
.
ReplaceAll
(
str
,
"{api_key}"
,
info
.
ApiKey
)
return
nil
,
types
.
NewError
(
err
,
types
.
ErrorCodeChannelHeaderOverrideInvalid
)
}
if
!
include
{
continue
}
}
headerOverride
[
k
]
=
str
headerOverride
[
k
]
=
value
}
}
return
headerOverride
,
nil
return
headerOverride
,
nil
}
}
...
@@ -77,7 +117,7 @@ func DoApiRequest(a Adaptor, c *gin.Context, info *common.RelayInfo, requestBody
...
@@ -77,7 +117,7 @@ func DoApiRequest(a Adaptor, c *gin.Context, info *common.RelayInfo, requestBody
}
}
// 在 SetupRequestHeader 之后应用 Header Override,确保用户设置优先级最高
// 在 SetupRequestHeader 之后应用 Header Override,确保用户设置优先级最高
// 这样可以覆盖默认的 Authorization header 设置
// 这样可以覆盖默认的 Authorization header 设置
headerOverride
,
err
:=
processHeaderOverride
(
info
)
headerOverride
,
err
:=
processHeaderOverride
(
info
,
c
)
if
err
!=
nil
{
if
err
!=
nil
{
return
nil
,
err
return
nil
,
err
}
}
...
@@ -112,7 +152,7 @@ func DoFormRequest(a Adaptor, c *gin.Context, info *common.RelayInfo, requestBod
...
@@ -112,7 +152,7 @@ func DoFormRequest(a Adaptor, c *gin.Context, info *common.RelayInfo, requestBod
}
}
// 在 SetupRequestHeader 之后应用 Header Override,确保用户设置优先级最高
// 在 SetupRequestHeader 之后应用 Header Override,确保用户设置优先级最高
// 这样可以覆盖默认的 Authorization header 设置
// 这样可以覆盖默认的 Authorization header 设置
headerOverride
,
err
:=
processHeaderOverride
(
info
)
headerOverride
,
err
:=
processHeaderOverride
(
info
,
c
)
if
err
!=
nil
{
if
err
!=
nil
{
return
nil
,
err
return
nil
,
err
}
}
...
@@ -138,7 +178,7 @@ func DoWssRequest(a Adaptor, c *gin.Context, info *common.RelayInfo, requestBody
...
@@ -138,7 +178,7 @@ func DoWssRequest(a Adaptor, c *gin.Context, info *common.RelayInfo, requestBody
}
}
// 在 SetupRequestHeader 之后应用 Header Override,确保用户设置优先级最高
// 在 SetupRequestHeader 之后应用 Header Override,确保用户设置优先级最高
// 这样可以覆盖默认的 Authorization header 设置
// 这样可以覆盖默认的 Authorization header 设置
headerOverride
,
err
:=
processHeaderOverride
(
info
)
headerOverride
,
err
:=
processHeaderOverride
(
info
,
c
)
if
err
!=
nil
{
if
err
!=
nil
{
return
nil
,
err
return
nil
,
err
}
}
...
...
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