Example usage for com.amazonaws.services.s3 AmazonS3Client getBucketPolicy

List of usage examples for com.amazonaws.services.s3 AmazonS3Client getBucketPolicy

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Introduction

In this page you can find the example usage for com.amazonaws.services.s3 AmazonS3Client getBucketPolicy.

Prototype

@Override
    public BucketPolicy getBucketPolicy(GetBucketPolicyRequest getBucketPolicyRequest)
            throws SdkClientException, AmazonServiceException

Source Link

Usage

From source file:n3phele.storage.s3.CloudStorageImpl.java

License:Open Source License

public boolean setPermissions(Repository repo, String filename, boolean isPublic) {
    String bucket = repo.getRoot();
    Credential credential = repo.getCredential().decrypt();
    AmazonS3Client s3 = new AmazonS3Client(
            new BasicAWSCredentials(credential.getAccount(), credential.getSecret()));
    String key = new S3ObjectResource(bucket, filename).getId();
    boolean inserted = false;

    s3.setEndpoint(repo.getTarget().toString());
    try {//from   ww  w.j av a2  s . c  om
        List<Statement> statements = new ArrayList<Statement>();
        Policy policy = null;
        BucketPolicy bp = s3.getBucketPolicy(repo.getRoot());
        if (bp != null && bp.getPolicyText() != null) {
            log.info("Policy text " + bp.getPolicyText());
            policy = PolicyHelper.parse(bp.getPolicyText());
            log.info("Policy object is " + (policy == null ? null : policy.toJson()));

            if (policy != null) {
                if (policy.getStatements() != null) {
                    for (Statement statement : policy.getStatements()) {
                        if (statement.getId().equals("n3phele")) {
                            List<com.amazonaws.auth.policy.Resource> resources = statement.getResources();
                            List<com.amazonaws.auth.policy.Resource> update = new ArrayList<com.amazonaws.auth.policy.Resource>();
                            if (resources != null) {
                                for (com.amazonaws.auth.policy.Resource resource : resources) {
                                    String resourceName = resource.getId();
                                    if (resourceName.endsWith("*")) {
                                        resourceName = resourceName.substring(0, resourceName.length() - 1);
                                    }
                                    if (!(resourceName + "/").startsWith(key + "/")) {
                                        update.add(resource);
                                    } else {
                                        log.info("Removing " + resource.getId());
                                    }
                                }
                            }
                            if (isPublic && !inserted)
                                update.add(new S3ObjectResource(repo.getRoot(), filename + "*"));
                            if (update.size() > 0) {
                                statement.setResources(update);
                                statements.add(statement);
                            }
                            inserted = true;
                        } else {
                            statements.add(statement);
                        }
                    }
                }
                if (!inserted && isPublic) {
                    Statement statement = new Statement(Effect.Allow);
                    statement.setId("n3phele");
                    statement.setPrincipals(Arrays.asList(new Principal("*")));
                    statement.setActions(Arrays.asList((Action) S3Actions.GetObject));
                    statement.setResources(Arrays
                            .asList((com.amazonaws.auth.policy.Resource) new S3ObjectResource(repo.getRoot(),
                                    filename + "*")));
                    statements.add(statement);
                }
            }
        }
        if (policy == null && isPublic) {
            policy = new Policy("n3phele-" + repo.getRoot());
            Statement statement = new Statement(Effect.Allow);
            statement.setId("n3phele");
            statement.setPrincipals(Arrays.asList(new Principal("*")));
            statement.setActions(Arrays.asList((Action) S3Actions.GetObject));
            statement.setResources(Arrays.asList(
                    (com.amazonaws.auth.policy.Resource) new S3ObjectResource(repo.getRoot(), filename + "*")));
            statements.add(statement);
        }
        if (policy != null) {
            if (statements.size() != 0) {
                policy.setStatements(statements);
                s3.setBucketPolicy(repo.getRoot(), policy.toJson());
                log.info("Set policy " + policy.toJson());
            } else {
                s3.deleteBucketPolicy(repo.getRoot());
            }
        }
        return true;

    } catch (AmazonServiceException e) {
        log.log(Level.WARNING, "Service Error processing " + repo, e);
    } catch (AmazonClientException e) {
        log.log(Level.SEVERE, "Client Error processing " + repo, e);
    } catch (IllegalArgumentException e) {
        log.log(Level.SEVERE, "parse error ", e);
        log.log(Level.SEVERE, "cause", e.getCause());
    }
    return false;
}

From source file:n3phele.storage.s3.CloudStorageImpl.java

License:Open Source License

public List<FileNode> getFileList(Repository repo, String prefix, int max) {
    List<FileNode> result = new ArrayList<FileNode>();
    Credential credential = repo.getCredential().decrypt();

    AmazonS3Client s3 = new AmazonS3Client(
            new BasicAWSCredentials(credential.getAccount(), credential.getSecret()));
    s3.setEndpoint(repo.getTarget().toString());
    Policy p = null;/*w w  w .j a v  a2  s  . c  o m*/
    try {
        BucketPolicy bp = s3.getBucketPolicy(repo.getRoot());
        log.info("Policy text " + bp.getPolicyText());
        if (bp != null && bp.getPolicyText() != null) {
            p = PolicyHelper.parse(bp.getPolicyText());
            log.info("Policy object is " + (p == null ? null : p.toJson()));
        }
    } catch (Exception e) {
        log.log(Level.WARNING, "Policy not supported", e);
    }

    try {
        ObjectListing s3Objects = s3
                .listObjects(new ListObjectsRequest(repo.getRoot(), prefix, null, "/", max));
        if (s3Objects.getCommonPrefixes() != null) {
            for (String dirName : s3Objects.getCommonPrefixes()) {
                String name = dirName;
                if (dirName.endsWith("/")) {
                    name = dirName.substring(0, dirName.length() - 1);
                }
                boolean isPublic = isPublicFolder(p, repo.getRoot(), name);
                name = name.substring(name.lastIndexOf("/") + 1);
                FileNode folder = FileNode.newFolder(name, prefix, repo, isPublic);
                log.info("Folder:" + folder);
                result.add(folder);
            }
        }
        if (s3Objects.getObjectSummaries() != null) {
            for (S3ObjectSummary fileSummary : s3Objects.getObjectSummaries()) {
                String key = fileSummary.getKey();
                if (key != null && !key.equals(prefix)) {
                    String name = key.substring(key.lastIndexOf("/") + 1);
                    UriBuilder builder = UriBuilder.fromUri(repo.getTarget()).path(repo.getRoot());
                    if (prefix != null && !prefix.isEmpty()) {
                        builder = builder.path(prefix);
                    }
                    FileNode file = FileNode.newFile(name, prefix, repo, fileSummary.getLastModified(),
                            fileSummary.getSize(), builder.path(name).toString());
                    log.info("File:" + file);
                    result.add(file);
                }
            }
        }

    } catch (AmazonServiceException e) {
        log.log(Level.WARNING, "Service Error processing " + repo, e);
    } catch (AmazonClientException e) {
        log.log(Level.SEVERE, "Client Error processing " + repo, e);
    }
    return result;
}