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add TLS fingerprint (ja3) spoofer request modifier

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This commit is contained in:
Kevin Pham
2023-11-27 16:30:13 -06:00
parent 2dccc7ca35
commit 7b3aecca7d
8 changed files with 553 additions and 69 deletions
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53
proxychain/proxychain.go
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@@ -5,14 +5,14 @@ import (
"fmt"
"io"
"log"
"net/http"
//"net/http"
http "github.com/Danny-Dasilva/fhttp"
"net/url"
"strings"
"ladder/pkg/ruleset"
rr "ladder/proxychain/responsemodifers/rewriters"
"github.com/gofiber/fiber/v2"
"ladder/pkg/ruleset"
)
/*
@@ -85,6 +85,7 @@ proxychain.NewProxyChain().
type ProxyChain struct {
Context *fiber.Ctx
Client *http.Client
onceClient *http.Client
Request *http.Request
Response *http.Response
requestModifications []RequestModification
@@ -312,6 +313,13 @@ func (chain *ProxyChain) SetHTTPClient(httpClient *http.Client) *ProxyChain {
return chain
}
// SetOnceHTTPClient sets a new upstream http client transport temporarily
// and clears it once it is used.
func (chain *ProxyChain) SetOnceHTTPClient(httpClient *http.Client) *ProxyChain {
chain.onceClient = httpClient
return chain
}
// SetVerbose changes the logging behavior to print
// the modification steps and applied rulesets for debugging
func (chain *ProxyChain) SetDebugLogging(isDebugMode bool) *ProxyChain {
@@ -340,6 +348,7 @@ func (chain *ProxyChain) _reset() {
chain.Context = nil
chain.onceResponseModifications = []ResponseModification{}
chain.onceRequestModifications = []RequestModification{}
//chain.onceClient = nil
}
// NewProxyChain initializes a new ProxyChain
@@ -355,6 +364,7 @@ func NewProxyChain() *ProxyChain {
// the caller is responsible for returning a response back to the requestor
// the caller is also responsible for calling chain._reset() when they are done with the body
func (chain *ProxyChain) _execute() (io.Reader, error) {
// ================== PREFLIGHT CHECKS =============================
if chain.validateCtxIsSet() != nil || chain.abortErr != nil {
return nil, chain.abortErr
}
@@ -365,6 +375,7 @@ func (chain *ProxyChain) _execute() (io.Reader, error) {
return nil, errors.New("request url not set or invalid. Check ProxyChain ReqMods for issues")
}
// ======== REQUEST MODIFICATIONS :: [client -> ladder] -> upstream -> ladder -> client =============================
// Apply requestModifications to proxychain
for _, applyRequestModificationsTo := range chain.requestModifications {
err := applyRequestModificationsTo(chain)
@@ -382,19 +393,26 @@ func (chain *ProxyChain) _execute() (io.Reader, error) {
}
chain.onceRequestModifications = []RequestModification{}
// ======== SEND REQUEST UPSTREAM :: client -> [ladder -> upstream] -> ladder -> client =============================
// Send Request Upstream
resp, err := chain.Client.Do(chain.Request)
if err != nil {
return nil, chain.abort(err)
if chain.onceClient != nil {
// if chain.SetOnceClient() is used, use that client instead of the
// default http client temporarily.
resp, err := chain.onceClient.Do(chain.Request)
if err != nil {
return nil, chain.abort(err)
}
chain.Response = resp
//chain.onceClient = nil
} else {
resp, err := chain.Client.Do(chain.Request)
if err != nil {
return nil, chain.abort(err)
}
chain.Response = resp
}
chain.Response = resp
/* todo: move to rsm
for k, v := range resp.Header {
chain.Context.Set(k, resp.Header.Get(k))
}
*/
// ======== APPLY RESPONSE MODIFIERS :: client -> ladder -> [upstream -> ladder] -> client =============================
// Apply ResponseModifiers to proxychain
for _, applyResultModificationsTo := range chain.responseModifications {
err := applyResultModificationsTo(chain)
@@ -412,6 +430,7 @@ func (chain *ProxyChain) _execute() (io.Reader, error) {
}
chain.onceResponseModifications = []ResponseModification{}
// ======== RETURN BODY TO CLIENT :: client -> ladder -> upstream -> [ladder -> client] =============================
return chain.Response.Body, nil
}
@@ -430,8 +449,12 @@ func (chain *ProxyChain) Execute() error {
return errors.New("no context set")
}
// in case api user did not set or forward content-type, we do it for them
if chain.Context.Get("content-type") == "" {
chain.Context.Set("content-type", chain.Response.Header.Get("content-type"))
}
// Return request back to client
chain.Context.Set("content-type", chain.Response.Header.Get("content-type"))
return chain.Context.SendStream(body)
// return chain.Context.SendStream(body)