Merge pull request #1037 from mikepenz/feature/1034

Introduce fallback mirror for license content loading

Author: mikepenz

plugin-build/plugin/src/main/kotlin/com/mikepenz/aboutlibraries/plugin/mapping/SpdxLicense.kt

@@ -396,15 +396,15 @@ enum class SpdxLicense(
     }),
     BSD_2_Clause("BSD 2-Clause \"Simplified\" License", "BSD-2-Clause", customMatcher = { name, url ->
         name.equals("BSD 2-Clause License", true)
-                || url?.endsWith("opensource.org/licenses/BSD-2-Clause", true) == true
-                || url?.endsWith("opensource.org/licenses/bsd-license", true) == true
+            || url?.endsWith("opensource.org/licenses/BSD-2-Clause", true) == true
+            || url?.endsWith("opensource.org/licenses/bsd-license", true) == true
     }),
     BSD_3_Clause("BSD 3-Clause \"New\" or \"Revised\" License", "BSD-3-Clause", customMatcher = { name, url ->
         name.equals("New BSD License", true) || name.equals("Modified BSD License", true) || name.equals(
             "BSD 3-clause",
             true
         ) ||
-                url?.endsWith("opensource.org/licenses/BSD-3-Clause", true) == true
+            url?.endsWith("opensource.org/licenses/BSD-3-Clause", true) == true
     }),
     MIT("MIT License", "MIT", customMatcher = { name, _ ->
         name.contains("MIT", true)
@@ -433,6 +433,8 @@ enum class SpdxLicense(
 
     fun getTxtUrl(): String = customTxtUrl ?: "https://spdx.org/licenses/$id.txt"
 
+    fun getFallbackTxtUrl(): String = "https://raw.githubusercontent.com/spdx/license-list-data/refs/heads/main/text/$id.txt"
+
     companion object {
         internal fun find(key: String): SpdxLicense? {
             for (l: SpdxLicense in SpdxLicense.values()) {

plugin-build/plugin/src/main/kotlin/com/mikepenz/aboutlibraries/plugin/util/LicenseUtil.kt

@@ -33,8 +33,7 @@ object LicenseUtil {
         try {
             val enumLicense = SpdxLicense.find(spdxId)
             if (enumLicense != null) {
-                val licUrl = enumLicense.getTxtUrl()
-                val singleLicense: String? = loadLicenseCached(licUrl)
+                val singleLicense: String? = loadLicenseCached(enumLicense.getTxtUrl()) ?: loadLicenseCached(enumLicense.getFallbackTxtUrl())
                 if (singleLicense?.isNotBlank() == true) {
                     name = enumLicense.fullName
                     url = enumLicense.getUrl()