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header values are be expected to be W3C baggage encoded #6164

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merged 6 commits into from
Feb 1, 2024
Merged

header values are be expected to be W3C baggage encoded #6164

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0afa8ef
header values are be expected to be W3C baggage encoded
zeitlinger Jan 18, 2024
66c9b6a
Update exporters/otlp/all/src/main/java/io/opentelemetry/exporter/otl…
zeitlinger Jan 19, 2024
01779f3
Update exporters/otlp/all/src/main/java/io/opentelemetry/exporter/otl…
zeitlinger Jan 19, 2024
ef98252
header values are be expected to be W3C baggage encoded
zeitlinger Jan 19, 2024
56ef081
Add test to confirm non-encoded headers still work
jack-berg Jan 23, 2024
5c4b4dd
spotless
jack-berg Jan 25, 2024
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14 changes: 13 additions & 1 deletion exporters/otlp/all/src/main/java/io/opentelemetry/exporter/otlp/internal/OtlpConfigUtil.java
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Original file line number Diff line number Diff line change
Expand Up @@ -19,8 +19,10 @@
import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLDecoder;
import java.time.Duration;
import java.util.Locale;
import java.util.Map;
Expand Down Expand Up @@ -89,7 +91,17 @@
if (headers.isEmpty()) {
headers = config.getMap("otel.exporter.otlp.headers");
}
headers.forEach(addHeader);
for (Map.Entry<String, String> entry : headers.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
try {
// headers are encoded as URL - see
// https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/protocol/exporter.md#specifying-headers-via-environment-variables
addHeader.accept(key, URLDecoder.decode(value, "UTF-8"));
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} catch (UnsupportedEncodingException e) {
throw new ConfigurationException("cannot decode header value: " + value, e);

Check warning on line 102 in exporters/otlp/all/src/main/java/io/opentelemetry/exporter/otlp/internal/OtlpConfigUtil.java

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exporters/otlp/all/src/main/java/io/opentelemetry/exporter/otlp/internal/OtlpConfigUtil.java#L101-L102 

Added lines #L101 - L102 were not covered by tests
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}
}

String compression = config.getString("otel.exporter.otlp." + dataType + ".compression");
if (compression == null) {
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4 changes: 2 additions & 2 deletions ...l/src/test/java/io/opentelemetry/exporter/otlp/internal/OtlpSpanExporterProviderTest.java
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Expand Up @@ -219,7 +219,7 @@ void createExporter_HttpWithGeneralConfiguration() throws CertificateEncodingExc
config.put("otel.exporter.otlp.certificate", certificatePath);
config.put("otel.exporter.otlp.client.key", clientKeyPath);
config.put("otel.exporter.otlp.client.certificate", clientCertificatePath);
config.put("otel.exporter.otlp.headers", "header-key=header-value");
config.put("otel.exporter.otlp.headers", "header-key=header%20value");
config.put("otel.exporter.otlp.compression", "gzip");
config.put("otel.exporter.otlp.timeout", "15s");
config.put("otel.experimental.exporter.otlp.retry.enabled", "true");
Expand All @@ -229,7 +229,7 @@ void createExporter_HttpWithGeneralConfiguration() throws CertificateEncodingExc
assertThat(exporter).isInstanceOf(OtlpHttpSpanExporter.class);
verify(httpBuilder, times(1)).build();
verify(httpBuilder).setEndpoint("https://localhost:443/v1/traces");
verify(httpBuilder).addHeader("header-key", "header-value");
verify(httpBuilder).addHeader("header-key", "header value");
verify(httpBuilder).setCompression("gzip");
verify(httpBuilder).setTimeout(Duration.ofSeconds(15));
verify(httpBuilder).setTrustedCertificates(serverTls.certificate().getEncoded());
Expand Down