diff options
Diffstat (limited to 'crypto/http/http_lib.c')
| -rw-r--r-- | crypto/http/http_lib.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/crypto/http/http_lib.c b/crypto/http/http_lib.c index 1d7ad0422a..41749f00e8 100644 --- a/crypto/http/http_lib.c +++ b/crypto/http/http_lib.c @@ -12,6 +12,8 @@ #include <openssl/err.h> #include <string.h> +#include "http_local.h" + /* * Parse a URL and split it up into host, port and path components and * whether it indicates SSL/TLS. Return 1 on success, 0 on error. @@ -114,3 +116,39 @@ int OSSL_HTTP_parse_url(const char *url, char **phost, char **pport, OPENSSL_free(buf); return 0; } + +int http_use_proxy(const char *no_proxy, const char *server) +{ + size_t sl = strlen(server); + const char *found = NULL; + + if (no_proxy == NULL) + no_proxy = getenv("no_proxy"); + if (no_proxy == NULL) + no_proxy = getenv("NO_PROXY"); + if (no_proxy != NULL) + found = strstr(no_proxy, server); + while (found != NULL + && ((found != no_proxy && found[-1] != ' ' && found[-1] != ',') + || (found[sl] != '\0' && found[sl] != ' ' && found[sl] != ','))) + found = strstr(found + 1, server); + return found == NULL; +} + +const char *http_adapt_proxy(const char *proxy, const char *no_proxy, + const char *server, int use_ssl) +{ + int prefix_len = strlen(HTTP_URL_PREFIX); + + if (proxy == NULL) + proxy = getenv(use_ssl ? "https_proxy" : "http_proxy"); + if (proxy == NULL) + proxy = getenv(use_ssl ? "HTTPS_PROXY" : "HTTP_PROXY"); + if (proxy != NULL && strncmp(proxy, HTTP_URL_PREFIX, prefix_len) == 0) + proxy += prefix_len; /* skip any leading "http://" */ + if (proxy != NULL && *proxy == '\0') + proxy = NULL; + if (proxy != NULL && !http_use_proxy(no_proxy, server)) + proxy = NULL; + return proxy; +} |