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Merge branch 'amazon-contributing:aws-cwa-dev' into aws-cwa-dev
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| // Copyright The OpenTelemetry Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package awsutil // import "github.com/open-telemetry/opentelemetry-collector-contrib/internal/aws/awsutil" | ||
|
|
||
| import ( | ||
| "os" | ||
| "os/user" | ||
| "path/filepath" | ||
| "strconv" | ||
| ) | ||
|
|
||
| const ( | ||
| envAwsSdkLoadConfig = "AWS_SDK_LOAD_CONFIG" | ||
| // nolint:gosec | ||
| envAwsSharedCredentialsFile = "AWS_SHARED_CREDENTIALS_FILE" | ||
| envAwsSharedConfigFile = "AWS_CONFIG_FILE" | ||
| ) | ||
|
|
||
| // getFallbackSharedConfigFiles follows the same logic as the AWS SDK but takes a getUserHomeDir | ||
| // function. | ||
| func getFallbackSharedConfigFiles(userHomeDirProvider func() string) []string { | ||
| var sharedCredentialsFile, sharedConfigFile string | ||
| setFromEnvVal(&sharedCredentialsFile, envAwsSharedCredentialsFile) | ||
| setFromEnvVal(&sharedConfigFile, envAwsSharedConfigFile) | ||
| if sharedCredentialsFile == "" { | ||
| sharedCredentialsFile = defaultSharedCredentialsFile(userHomeDirProvider()) | ||
| } | ||
| if sharedConfigFile == "" { | ||
| sharedConfigFile = defaultSharedConfig(userHomeDirProvider()) | ||
| } | ||
| var cfgFiles []string | ||
| enableSharedConfig, _ := strconv.ParseBool(os.Getenv(envAwsSdkLoadConfig)) | ||
| if enableSharedConfig { | ||
| cfgFiles = append(cfgFiles, sharedConfigFile) | ||
| } | ||
| return append(cfgFiles, sharedCredentialsFile) | ||
| } | ||
|
|
||
| func setFromEnvVal(dst *string, keys ...string) { | ||
| for _, k := range keys { | ||
| if v := os.Getenv(k); len(v) != 0 { | ||
| *dst = v | ||
| break | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func defaultSharedCredentialsFile(dir string) string { | ||
| return filepath.Join(dir, ".aws", "credentials") | ||
| } | ||
|
|
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| func defaultSharedConfig(dir string) string { | ||
| return filepath.Join(dir, ".aws", "config") | ||
| } | ||
|
|
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| // backwardsCompatibleUserHomeDir provides the home directory based on | ||
| // environment variables. | ||
| // | ||
| // Based on v1.44.106 of the AWS SDK. | ||
| func backwardsCompatibleUserHomeDir() string { | ||
| home, _ := os.UserHomeDir() | ||
| return home | ||
| } | ||
|
|
||
| // currentUserHomeDir attempts to use the environment variables before falling | ||
| // back on the current user's home directory. | ||
| // | ||
| // Based on v1.44.332 of the AWS SDK. | ||
| func currentUserHomeDir() string { | ||
| var home string | ||
|
|
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| home = backwardsCompatibleUserHomeDir() | ||
| if len(home) > 0 { | ||
| return home | ||
| } | ||
|
|
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| currUser, _ := user.Current() | ||
| if currUser != nil { | ||
| home = currUser.HomeDir | ||
| } | ||
|
|
||
| return home | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| // Copyright The OpenTelemetry Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package awsutil | ||
|
|
||
| import ( | ||
| "testing" | ||
|
|
||
| "github.com/stretchr/testify/assert" | ||
| ) | ||
|
|
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| func TestGetFallbackSharedConfigFiles(t *testing.T) { | ||
| noOpGetUserHomeDir := func() string { return "home" } | ||
| t.Setenv(envAwsSdkLoadConfig, "true") | ||
| t.Setenv(envAwsSharedCredentialsFile, "credentials") | ||
| t.Setenv(envAwsSharedConfigFile, "config") | ||
|
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| got := getFallbackSharedConfigFiles(noOpGetUserHomeDir) | ||
| assert.Equal(t, []string{"config", "credentials"}, got) | ||
|
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| t.Setenv(envAwsSdkLoadConfig, "false") | ||
| got = getFallbackSharedConfigFiles(noOpGetUserHomeDir) | ||
| assert.Equal(t, []string{"credentials"}, got) | ||
|
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| t.Setenv(envAwsSdkLoadConfig, "true") | ||
| t.Setenv(envAwsSharedCredentialsFile, "") | ||
| t.Setenv(envAwsSharedConfigFile, "") | ||
|
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||
| got = getFallbackSharedConfigFiles(noOpGetUserHomeDir) | ||
| assert.Equal(t, []string{defaultSharedConfig("home"), defaultSharedCredentialsFile("home")}, got) | ||
| } |
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