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| author | David Goulet <dgoulet@torproject.org> | 2022-02-02 13:51:22 -0500 |
|---|---|---|
| committer | David Goulet <dgoulet@torproject.org> | 2022-02-03 08:30:23 -0500 |
| commit | 3c73622f27c67eb636f19a938c5f401da8db901f (patch) | |
| tree | 5f335c5292a60170769229c905615c3e2fd843b6 | |
| parent | 1b58399b07a17c2745624f35780fd3ddbe7a0251 (diff) | |
| download | tor-3c73622f27c67eb636f19a938c5f401da8db901f.tar.gz tor-3c73622f27c67eb636f19a938c5f401da8db901f.zip | |
hs: Double quote the metrics label value
Fixes #40552
Signed-off-by: David Goulet <dgoulet@torproject.org>
| -rw-r--r-- | changes/ticket40552 | 3 | ||||
| -rw-r--r-- | src/feature/hs/hs_metrics.c | 6 | ||||
| -rw-r--r-- | src/test/test_metrics.c | 4 |
3 files changed, 10 insertions, 3 deletions
diff --git a/changes/ticket40552 b/changes/ticket40552 new file mode 100644 index 0000000000..7811f3a743 --- /dev/null +++ b/changes/ticket40552 @@ -0,0 +1,3 @@ + o Minor bugfixes (MetricsPort, Prometheus): + - Add double quotes to the label values of the onion service metrics. Fixes + bug 40552; bugfix on 0.4.5.1-alpha. diff --git a/src/feature/hs/hs_metrics.c b/src/feature/hs/hs_metrics.c index e6d3084f26..452bb44419 100644 --- a/src/feature/hs/hs_metrics.c +++ b/src/feature/hs/hs_metrics.c @@ -32,12 +32,16 @@ port_to_str(const uint16_t port) /** Return a static buffer pointer that contains a formatted label on the form * of key=value. * + * NOTE: Important, label values MUST NOT contain double quotes else, in the + * case of Prometheus, it will fail with a malformed line because we force the + * label value to be enclosed in double quotes. + * * Subsequent call to this function invalidates the previous buffer. */ static const char * format_label(const char *key, const char *value) { static char buf[128]; - tor_snprintf(buf, sizeof(buf), "%s=%s", key, value); + tor_snprintf(buf, sizeof(buf), "%s=\"%s\"", key, value); return buf; } diff --git a/src/test/test_metrics.c b/src/test/test_metrics.c index 152dd99d23..58628e8483 100644 --- a/src/test/test_metrics.c +++ b/src/test/test_metrics.c @@ -30,8 +30,8 @@ #define TEST_METRICS_ENTRY_NAME "entryA" #define TEST_METRICS_ENTRY_HELP "Description of entryA" -#define TEST_METRICS_ENTRY_LABEL_1 "label=farfadet" -#define TEST_METRICS_ENTRY_LABEL_2 "label=ponki" +#define TEST_METRICS_ENTRY_LABEL_1 "label=\"farfadet\"" +#define TEST_METRICS_ENTRY_LABEL_2 "label=\"ponki\"" static void set_metrics_port(or_options_t *options) |