sym_upload: Show failure if symbol server gives redirect response

Add a "response_code" parameter to Linux's HTTPUpload::SendRequest() that,
if non-NULL, will be set to the response code of the HTTP request.  Using
that, sym_upload will print a failure message on Linux if the response code
is not 200.  This is in line with the change made by
http://breakpad.appspot.com/77001/ for the Mac version.

BUG=google-breakpad:480, chromium-os:30032
TEST=Ran "sym_upload powertop.sym http://test.webdav.org/redir-tmp/"
     Ran "sym_upload powertop.sym http://clients2.google.com/cr/staging_symbol"
Review URL: https://breakpad.appspot.com/388002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@968 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/common/linux/http_upload.cc

@@ -62,7 +62,11 @@ bool HTTPUpload::SendRequest(const string &url,
                              const string &proxy_user_pwd,
                              const string &ca_certificate_file,
                              string *response_body,
+                             long *response_code,
                              string *error_description) {
+  if (response_code != NULL)
+    *response_code = 0;
+
   if (!CheckParameters(parameters))
     return false;
 
@@ -149,6 +153,11 @@ bool HTTPUpload::SendRequest(const string &url,
   CURLcode (*curl_easy_perform)(CURL *);
   *(void**) (&curl_easy_perform) = dlsym(curl_lib, "curl_easy_perform");
   err_code = (*curl_easy_perform)(curl);
+  if (response_code != NULL) {
+    CURLcode (*curl_easy_getinfo)(CURL *, CURLINFO, ...);
+    *(void**) (&curl_easy_getinfo) = dlsym(curl_lib, "curl_easy_getinfo");
+    (*curl_easy_getinfo)(curl, CURLINFO_RESPONSE_CODE, response_code);
+  }
   const char* (*curl_easy_strerror)(CURLcode);
   *(void**) (&curl_easy_strerror) = dlsym(curl_lib, "curl_easy_strerror");
 #ifndef NDEBUG

src/common/linux/http_upload.h

@@ -53,6 +53,8 @@ class HTTPUpload {
   // Only HTTP(S) URLs are currently supported.  Returns true on success.
   // If the request is successful and response_body is non-NULL,
   // the response body will be returned in response_body.
+  // If response_code is non-NULL, it will be set to the HTTP response code
+  // received (or 0 if the request failed before getting an HTTP response).
   // If the send fails, a description of the error will be
   // returned in error_description.
   static bool SendRequest(const string &url,
@@ -63,6 +65,7 @@ class HTTPUpload {
                           const string &proxy_user_pwd,
                           const string &ca_certificate_file,
                           string *response_body,
+                          long *response_code,
                           string *error_description);
 
  private:

src/tools/linux/symupload/minidump_upload.cc

@@ -71,6 +71,7 @@ static void Start(Options *options) {
                                          options->proxy_user_pwd,
                                          "",
                                          &response,
+                                         NULL,
                                          &error);
 
   if (success) {

src/tools/linux/symupload/sym_upload.cc

@@ -139,6 +139,7 @@ static void Start(Options *options) {
   parameters["code_file"] = module_parts[4];
   parameters["debug_identifier"] = compacted_id;
   std::string response, error;
+  long response_code;
   bool success = HTTPUpload::SendRequest(options->uploadURLStr,
                                          parameters,
                                          options->symbolsPath,
@@ -147,14 +148,21 @@ static void Start(Options *options) {
                                          options->proxy_user_pwd,
                                          "",
                                          &response,
+                                         &response_code,
                                          &error);
 
-  if (success) {
+  if (!success) {
-    printf("Successfully sent the symbol file.\n");
-  } else {
     printf("Failed to send symbol file: %s\n", error.c_str());
     printf("Response:\n");
     printf("%s\n", response.c_str());
+  } else if (response_code == 0) {
+    printf("Failed to send symbol file: No response code\n");
+  } else if (response_code != 200) {
+    printf("Failed to send symbol file: Response code %ld\n", response_code);
+    printf("Response:\n");
+    printf("%s\n", response.c_str());
+  } else {
+    printf("Successfully sent the symbol file.\n");
   }
   options->success = success;
 }