Demo http S3 generate presigned url - generate not only GET but also PUT (for http S3 upload demo)

README.md

@@ -470,7 +470,7 @@ In order to set these configurations manually, edit `demo_config.h` in `demos/ht
 * Set `S3_PRESIGNED_GET_URL` to a S3 presigned URL with GET access.
 * Set `S3_PRESIGNED_PUT_URL` to a S3 presigned URL with PUT access.
 
-You can generate the presigned urls using [demos/http/common/src/presigned_urls_gen.py](demos/http/common/src/presigned_urls_gen.py). More info can be found [here](demos/http/common/src/README.md).
+You can generate the presigned urls using [demos/http/common/src/presigned_urls_gen.py](demos/http/common/src/presigned_urls_gen.py) (more info can be found [here](demos/http/common/src/README.md)) or [demos/http/http_demo_s3_generate_presigned_url/README.md](demos/http/http_demo_s3_generate_presigned_url/README.md).
 
 ####  Configure S3 Download HTTP Demo using SigV4 Library:
 

demos/http/http_demo_s3_generate_presigned_url/README.md

@@ -59,14 +59,15 @@ Run the following command in the AWS CLI to create an IAM role with the precedin
 ```sh
 aws iam create-role --role-name s3-access-role --assume-role-policy-document file://trustpolicyforiot.json
 ```
-The following s3 access policy allows you to perform actions on S3. Put the following policy in a text document and save the document with the name `accesspolicyfors3.json`.
+The following s3 access policy allows you to perform GET and PUT actions on S3. You can remove the "s3:PutObject" if only download is required (no upload e.g. http_demo_s3_upload). Put the following policy in a text document and save the document with the name `accesspolicyfors3.json`.
 ```
 {
    "Version": "2012-10-17",
    "Statement": {
    "Effect": "Allow",
    "Action": [
-             "s3:GetObject"
+             "s3:GetObject",
+             "s3:PutObject"
              ],
    "Resource": "arn:aws:s3:::BUCKET_NAME/*"
     }

demos/http/http_demo_s3_generate_presigned_url/http_demo_s3_generate_presigned_url.c

@@ -226,7 +226,8 @@ struct NetworkContext
  */
 static bool printS3ObjectFilePresignedURL( const char * pHost,
                                            size_t hostLen,
-                                           const char * pPath );
+                                           const char * pPath,
+                                           const bool is_get );
 
 /**
  * @brief CryptoInterface provided to SigV4 library for generating the hash digest.
@@ -261,7 +262,8 @@ static SigV4Parameters_t sigv4Params =
 
 static bool printS3ObjectFilePresignedURL( const char * pHost,
                                            size_t hostLen,
-                                           const char * pPath )
+                                           const char * pPath,
+                                           const bool is_get )
 {
     bool returnStatus = true;
     HTTPStatus_t httpStatus = HTTPSuccess;
@@ -291,8 +293,16 @@ static bool printS3ObjectFilePresignedURL( const char * pHost,
     /* Initialize the request object. */
     requestInfo.pHost = pHost;
     requestInfo.hostLen = hostLen;
-    requestInfo.pMethod = HTTP_METHOD_GET;
-    requestInfo.methodLen = sizeof( HTTP_METHOD_GET ) - 1;
+    if( is_get )
+    {
+        requestInfo.pMethod = HTTP_METHOD_GET;
+        requestInfo.methodLen = sizeof( HTTP_METHOD_GET ) - 1;
+    }
+    else
+    {
+        requestInfo.pMethod = HTTP_METHOD_PUT;
+        requestInfo.methodLen = sizeof( HTTP_METHOD_PUT ) - 1;
+    }
     requestInfo.pPath = pPath;
     requestInfo.pathLen = strlen( pPath );
 
@@ -523,9 +533,20 @@ int main( int argc,
 
         if( returnStatus == EXIT_SUCCESS )
         {
+            LogInfo( ( "HTTP_METHOD_GET:" ) );
             ret = printS3ObjectFilePresignedURL( serverHost,
                                                  serverHostLength,
-                                                 pPath );
+                                                 pPath,
+                                                 true/*is_get*/ );
+
+            if( ret )
+            {
+                LogInfo( ( "HTTP_METHOD_PUT:" ) );
+                ret = printS3ObjectFilePresignedURL( serverHost,
+                                                     serverHostLength,
+                                                     pPath,
+                                                     false/*is_get*/ );
+            }
 
             returnStatus = ( ret == true ) ? EXIT_SUCCESS : EXIT_FAILURE;
         }