Encoding problem

[ptashcka]

Hi.
Both twitter and facebook use default RestTemplate object configured with FormHttpMessageConverter. The default encoding for this converter is set to "ISO-8859-1", though UTF-8 should be used with Facebook and Twitter API.

Looks like a bug. I've overridden template constructors as a workaround:

List<HttpMessageConverter<?>> converters = getRestTemplate().getMessageConverters();
        for (HttpMessageConverter<?> converter : converters) {
            if (converter instanceof FormHttpMessageConverter) {
                ((FormHttpMessageConverter) converter).setCharset(Charset.forName("UTF8"));
            }
			if(converter instanceof MappingJacksonHttpMessageConverter) {
				MappingJacksonHttpMessageConverter jsonConverter = (MappingJacksonHttpMessageConverter) converter;
				ObjectMapper objectMapper = new ObjectMapper();
				objectMapper.registerModule(new FacebookModule());
                objectMapper.configure(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, false);
				jsonConverter.setObjectMapper(objectMapper);
			}
		}

probably there is a better solution?

[Keith Donald]

We should definitely fix this issue if its a bug. What specific problems were occurring in your application that led you to notice this issue? Just curious.

[ptashcka]

I use russian to post to Facebook and Twitter so my messages turned into something like:
?? ?????? hello world
Specifically for these methods:
facebookConnection.getApi().feedOperations().postL ink();
timelineOperations.updateStatus();

[habuma]

It looks like this is a bug when used with Spring 3.0.x. In Spring 3.1, UTF-8 is FormHttpMessageConverter's default character set, so it works fine. But in Spring 3.0.x, it defaults to ISO-8859-1, which is where you're probably seeing the problem.

This was corrected in SPR-7789, but that fix doesn't appear in any released 3.0.x build.

I've created https://jira.springsource.org/browse/SOCIAL-170 to address this in Spring Social.