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Support Tag Keys for DD_TRACE_HEADER_TAGS #2922

Merged
merged 8 commits into from
Nov 6, 2024
Merged

Support Tag Keys for DD_TRACE_HEADER_TAGS #2922

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2933281
Adding test to base behavior from
link04 Oct 31, 2024
a1939a2
Using MAP_LOWERCASE and updating current zai_config_decode_map method
link04 Nov 5, 2024
7b3c423
Using lowercase condition for new map and empty value for keyless header
link04 Nov 5, 2024
e1d305b
Adding easy nits
link04 Nov 5, 2024
ea54b0e
Updated to take into account empty string after colon and safer use o…
link04 Nov 6, 2024
0de558f
Applying nits changes
link04 Nov 6, 2024
c26eda0
Adding spacing tests based on system-test examples
link04 Nov 6, 2024
2f104b2
Removing redundant check
link04 Nov 6, 2024
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6 changes: 3 additions & 3 deletions ext/serializer.c
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Original file line number Diff line number Diff line change
Expand Up @@ -328,13 +328,13 @@ static void dd_add_header_to_meta(zend_array *meta, const char *type, zend_strin
if (header_config != NULL && Z_TYPE_P(header_config) == IS_STRING) {
zend_string *header_config_str = Z_STR_P(header_config);
zend_string *headertag;
if (zend_string_equals(header_config_str, lowerheader)) {
for (char *ptr = ZSTR_VAL(header_config_str); *ptr; ++ptr) {
if (ZSTR_LEN(header_config_str) == 0) {
for (char *ptr = ZSTR_VAL(lowerheader); *ptr; ++ptr) {
if ((*ptr < 'a' || *ptr > 'z') && *ptr != '-' && (*ptr < '0' || *ptr > '9')) {
*ptr = '_';
}
}
headertag = zend_strpprintf(0, "http.%s.headers.%s", type, ZSTR_VAL(header_config_str));
headertag = zend_strpprintf(0, "http.%s.headers.%s", type, ZSTR_VAL(lowerheader));
} else {
headertag = zend_string_copy(header_config_str);
}
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4 changes: 2 additions & 2 deletions tests/Unit/ConfigurationTest.php
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Expand Up @@ -260,7 +260,7 @@ public function testGlobalTags()
public function testGlobalTagsWrongValueJustResultsInNoTags()
{
$this->putEnvAndReloadConfig(['DD_TAGS=wrong_key_value']);
$this->assertEquals(['wrong_key_value' => 'wrong_key_value'], \dd_trace_env_config("DD_TAGS"));
$this->assertEquals([], \dd_trace_env_config("DD_TAGS"));
}

public function testHttpHeadersDefaultsToEmpty()
Expand All @@ -284,6 +284,6 @@ public function testHttpHeadersCanSetMultiple()
// Same behavior as python tracer:
// https://github.com/DataDog/dd-trace-py/blob/f1298cb8100f146059f978b58c88641bd7424af8/ddtrace/http/headers.py
$this->assertSame(['a-header', 'any-name', 'con7aining-!spe_cial?', 'some-heather'], array_keys(\dd_trace_env_config("DD_TRACE_HEADER_TAGS")));
$this->assertEquals(['a-header' => 'a-header', 'any-name' => 'any-name', 'con7aining-!spe_cial?' => 'ch/ars', 'some-heather' => 'with-colon-Key'], \dd_trace_env_config("DD_TRACE_HEADER_TAGS"));
$this->assertEquals(['a-header' => '', 'any-name' => '', 'con7aining-!spe_cial?' => 'ch/ars', 'some-heather' => 'with-colon-Key'], \dd_trace_env_config("DD_TRACE_HEADER_TAGS"));
}
}
6 changes: 3 additions & 3 deletions zend_abstract_interface/config/config_decode.c
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Expand Up @@ -164,16 +164,16 @@ static bool zai_config_decode_map(zai_str value, zval *decoded_value, bool persi
data++;
}

// Handle case without a colon (standalone key)
if (!has_colon && key_end) {
// Handle case without a colon (standalone key) only when lowercase is true which is current use case
if (lowercase && !has_colon && key_end) {
size_t key_len = key_end - key_start + 1;
zend_string *key = zend_string_init(key_start, key_len, persistent);
if (lowercase) {
zend_str_tolower(ZSTR_VAL(key), ZSTR_LEN(key));
}

zval val;
ZVAL_NEW_STR(&val, zend_string_copy(key));
ZVAL_EMPTY_STRING(&val);
zend_hash_update(Z_ARRVAL(tmp), key, &val);
zend_string_release(key);
}
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