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PHPC-1774 Fix truncation of PHP_VERSION constant in handshake metadata #1202

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Merged
merged 2 commits into from
Feb 23, 2021
Merged

PHPC-1774 Fix truncation of PHP_VERSION constant in handshake metadata #1202

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1d6c46f
PHPC-1774 Fix truncation of PHP_VERSION constant in handshake metadata
alcaeus Feb 17, 2021
f931076
Work around libmongoc issue that concatenates platform without whites…
alcaeus Feb 18, 2021
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10 changes: 6 additions & 4 deletions php_phongo.c
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Original file line number Diff line number Diff line change
Expand Up @@ -76,6 +76,8 @@
#define PHONGO_DEBUG_INI_DEFAULT ""
#define PHONGO_METADATA_SEPARATOR " / "
#define PHONGO_METADATA_SEPARATOR_LEN (sizeof(PHONGO_METADATA_SEPARATOR) - 1)
#define PHONGO_METADATA_PHP_VERSION_PREFIX "PHP "
#define PHONGO_METADATA_PHP_VERSION_PREFIX_LEN (sizeof(PHONGO_METADATA_PHP_VERSION_PREFIX) - 1)

ZEND_DECLARE_MODULE_GLOBALS(mongodb)
#if defined(ZTS) && defined(COMPILE_DL_MONGODB)
Expand Down Expand Up @@ -2569,7 +2571,7 @@ static char* php_phongo_concat_handshake_data(const char* default_value, const c
size_t ret_len = strlen(default_value) + 1;

if (custom_value) {
/* Increase the length by that of the custom value as well as one byte for the separator */
/* Increase the length by that of the custom value as well as the separator length */
ret_len += custom_value_len + PHONGO_METADATA_SEPARATOR_LEN;
}

Expand All @@ -2592,9 +2594,9 @@ static void php_phongo_handshake_data_append(const char* name, size_t name_len,
char* driver_version;
char* full_platform;

php_version_string_len = strlen(PHP_VERSION);
php_version_string = ecalloc(sizeof(char*), 4 + php_version_string_len);
snprintf(php_version_string, 4 + php_version_string_len, "PHP %s", PHP_VERSION);
php_version_string_len = strlen(PHP_VERSION) + PHONGO_METADATA_PHP_VERSION_PREFIX_LEN + 1;
php_version_string = ecalloc(sizeof(char*), php_version_string_len);
snprintf(php_version_string, php_version_string_len, "%s%s", PHONGO_METADATA_PHP_VERSION_PREFIX, PHP_VERSION);
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I think you're still missing the space that goes after the PHONGO_METADATA_PHP_VERSION_PREFIX + PHP_VERSION combo.

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You are indeed correct. This is an issue in libmongoc which seems to append platform data without a separating space. I'm working on a fix for that, but for the time being this PR will mitigate the issue.


driver_name = php_phongo_concat_handshake_data("ext-mongodb:PHP", name, name_len);
driver_version = php_phongo_concat_handshake_data(PHP_MONGODB_VERSION, version, version_len);
Expand Down