feat: inject into plugins only

this could be helpful in the case you'll inject your own fix into the main binary only, as all other injectors do

Author: asdfzxcvbn

README.md

@@ -13,14 +13,15 @@ ipapatch only has 1 external dependency: the `zip` command. ipapatch actually co
 # usage
 ```bash
 $ ipapatch --help
-usage: ipapatch [-h/--help] --input <path> [--output <path] [--dylib <path>] [--inplace] [--noconfirm] [--version]
+usage: ipapatch [-h/--help] --input <path> [--output <path] [--dylib <path>] [--inplace] [--noconfirm] [--plugins-only] [--version]
 
 flags:
   --input path      the path to the ipa file to patch
   --output path     the path to the patched ipa file to create
   --dylib path      the path to the dylib to use instead of the embedded zxPluginsInject
   --inplace         takes priority over --output, use this to overwrite the input file
   --noconfirm       skip interactive confirmation when not using --inplace, overwriting a file that already exists, etc
+  --plugins-only    only inject into plugin binaries (not the main executable)
 
 info:
   -h, --help        show usage and exit

cmd.go

@@ -7,29 +7,31 @@ import (
 	"go.uber.org/zap/zapcore"
 )
 
-const helpText = `usage: ipapatch [-h/--help] --input <path> [--output <path] [--dylib <path>] [--inplace] [--noconfirm] [--version]
+const helpText = `usage: ipapatch [-h/--help] --input <path> [--output <path] [--dylib <path>] [--inplace] [--noconfirm] [--plugins-only] [--version]
 
 flags:
   --input path      the path to the ipa file to patch
   --output path     the path to the patched ipa file to create
   --dylib path      the path to the dylib to use instead of the embedded zxPluginsInject
   --inplace         takes priority over --output, use this to overwrite the input file
   --noconfirm       skip interactive confirmation when not using --inplace, overwriting a file that already exists, etc
+  --plugins-only    only inject into plugin binaries (not the main executable)
 
 info:
   -h, --help        show usage and exit
   --version         show version and exit`
 
 type Args struct {
-	Input     string `arg:"--input,required"`
-	Output    string `arg:"--output"`
-	Dylib     string `arg:"--dylib"`
-	InPlace   bool   `arg:"--inplace"`
-	NoConfirm bool   `arg:"--noconfirm"`
+	Input       string `arg:"--input,required"`
+	Output      string `arg:"--output"`
+	Dylib       string `arg:"--dylib"`
+	InPlace     bool   `arg:"--inplace"`
+	NoConfirm   bool   `arg:"--noconfirm"`
+	PluginsOnly bool   `arg:"--plugins-only"`
 }
 
 func (Args) Version() string {
-	return "ipapatch v1.1.0"
+	return "ipapatch v1.1.1"
 }
 
 func AskInteractively(question string) bool {

ipa.go

@@ -24,7 +24,7 @@ func injectAll(args Args, tmpdir string) (map[string]string, error) {
 	}
 	defer z.Close()
 
-	plists, err := findPlists(z.File)
+	plists, err := findPlists(z.File, args.PluginsOnly)
 	if err != nil {
 		return nil, err
 	}
@@ -60,18 +60,22 @@ func injectAll(args Args, tmpdir string) (map[string]string, error) {
 	return paths, nil
 }
 
-func findPlists(files []*zip.File) (plists []string, err error) {
+func findPlists(files []*zip.File, pluginsOnly bool) (plists []string, err error) {
 	plists = make([]string, 0, 10)
 
 	for _, f := range files {
-		if !(strings.HasSuffix(f.Name, ".app/Info.plist") || strings.HasSuffix(f.Name, ".appex/Info.plist")) {
+		if !pluginsOnly && strings.HasSuffix(f.Name, ".app/Info.plist") {
+			plists = append(plists, f.Name)
+			continue
+		}
+		if strings.HasSuffix(f.Name, ".appex/Info.plist") {
+			plists = append(plists, f.Name)
 			continue
 		}
 		if strings.Contains(f.Name, ".app/Watch") || strings.Contains(f.Name, ".app/WatchKit") || strings.Contains(f.Name, ".app/com.apple.WatchPlaceholder") {
 			logger.Infof("found watch app at '%s', you might want to remove that", filepath.Dir(f.Name))
 			continue
 		}
-		plists = append(plists, f.Name)
 	}
 
 	if len(plists) == 0 {