feat: add support for SOCKS5 proxy

CHANGELOG.md

@@ -1,5 +1,8 @@
 # Changelog
 
+**Features**:
+- Add SOCKS5 proxy support ([#1063](https://github.com/getsentry/sentry-native/pull/1063)) 
+
 ## 0.7.11
 
 **Fixes**:

include/sentry.h

@@ -979,6 +979,22 @@ SENTRY_API void sentry_options_set_http_proxy_n(
 SENTRY_API const char *sentry_options_get_http_proxy(
     const sentry_options_t *opts);
 
+/**
+ * Configures the socks5 proxy.
+ *
+ *  The given proxy has to include the full scheme, eg. `socks5://some.proxy/`.
+ */
+SENTRY_API void sentry_options_set_socks5_proxy(
+    sentry_options_t *opts, const char *proxy);
+SENTRY_API void sentry_options_set_socks5_proxy_n(
+    sentry_options_t *opts, const char *proxy, size_t proxy_len);
+
+/**
+ * Returns the configured socks5 proxy.
+ */
+SENTRY_API const char *sentry_options_get_socks5_proxy(
+    const sentry_options_t *opts);
+
 /**
  * Configures the path to a file containing ssl certificates for
  * verification.

src/sentry_options.c

@@ -255,6 +255,27 @@ sentry_options_get_http_proxy(const sentry_options_t *opts)
     return opts->http_proxy;
 }
 
+void
+sentry_options_set_socks5_proxy_n(
+    sentry_options_t *opts, const char *proxy, size_t proxy_len)
+{
+    sentry_free(opts->socks5_proxy);
+    opts->socks5_proxy = sentry__string_clone_n(proxy, proxy_len);
+}
+
+void
+sentry_options_set_socks5_proxy(sentry_options_t *opts, const char *proxy)
+{
+    sentry_free(opts->socks5_proxy);
+    opts->socks5_proxy = sentry__string_clone(proxy);
+}
+
+const char *
+sentry_options_get_socks5_proxy(const sentry_options_t *opts)
+{
+    return opts->socks5_proxy;
+}
+
 void
 sentry_options_set_ca_certs(sentry_options_t *opts, const char *path)
 {

src/sentry_options.h

@@ -36,6 +36,7 @@ typedef struct sentry_options_s {
     char *environment;
     char *dist;
     char *http_proxy;
+    char *socks5_proxy;
     char *ca_certs;
     char *transport_thread_name;
     char *sdk_name;

src/transports/sentry_transport_curl.c

@@ -18,6 +18,7 @@ typedef struct curl_transport_state_s {
     CURL *curl_handle;
     char *user_agent;
     char *http_proxy;
+    char *socks5_proxy;
     char *ca_certs;
     sentry_rate_limiter_t *ratelimiter;
     bool debug;
@@ -55,6 +56,7 @@ sentry__curl_bgworker_state_free(void *_state)
     sentry_free(state->ca_certs);
     sentry_free(state->user_agent);
     sentry_free(state->http_proxy);
+    sentry_free(state->socks5_proxy);
     sentry_free(state);
 }
 
@@ -102,6 +104,7 @@ sentry__curl_transport_start(
 
     state->dsn = sentry__dsn_incref(options->dsn);
     state->http_proxy = sentry__string_clone(options->http_proxy);
+    state->socks5_proxy = sentry__string_clone(options->socks5_proxy);
     state->user_agent = sentry__string_clone(options->user_agent);
     state->ca_certs = sentry__string_clone(options->ca_certs);
     state->curl_handle = curl_easy_init();
@@ -218,6 +221,9 @@ sentry__curl_send_task(void *_envelope, void *_state)
     if (state->http_proxy) {
         curl_easy_setopt(curl, CURLOPT_PROXY, state->http_proxy);
     }
+    if (state->socks5_proxy) {
+        curl_easy_setopt(curl ,CURLOPT_PROXY, state->socks5_proxy);
+    }
     if (state->ca_certs) {
         curl_easy_setopt(curl, CURLOPT_CAINFO, state->ca_certs);
     }