fix: check suffix characters

2 years ago · 23d26172a4
parent 6098260f45
commit 23d26172a4
1 changed files with 3 additions and 1 deletions
--- a/app/src/main/java/io/legado/app/help/BookHelp.kt
+++ b/app/src/main/java/io/legado/app/help/BookHelp.kt
@ -144,7 +144,9 @@ object BookHelp {

    fun getImageSuffix(src: String): String {
        var suffix = src.substringAfterLast(".").substringBefore(",")
-        if (suffix.length > 5) {
+        //检查截取的后缀字符是否合法 [a-zA-Z0-9]
+        val fileSuffixRegex = Regex("^[a-z0-9]+$", RegexOption.IGNORE_CASE)
+        if (suffix.length > 5 || !suffix.matches(fileSuffixRegex)) {
            suffix = "jpg"
        }
        return suffix