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Improve robustness of json parsing and execution

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Fixes #720
This commit is contained in:
Maxime Coste 2016-07-04 19:31:09 +01:00
parent 469eb6ec44
commit 8270f9299f
1 changed files with 4 additions and 7 deletions
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11
src/json_ui.cc
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@ -360,6 +360,9 @@ parse_json(StringView json) { return parse_json(json.begin(), json.end()); }
void JsonUI::eval_json(const Value& json)
{
if (not json.is_a<JsonObject>())
throw runtime_error("json request is not an object");
const JsonObject& object = json.as<JsonObject>();
auto json_it = object.find("jsonrpc");
if (json_it == object.end() or json_it->value.as<String>() != "2.0")
@ -436,14 +439,8 @@ void JsonUI::parse_requests(EventMode mode)
{
write_stderr(format("error while handling requests '{}': '{}'",
m_requests, error.what()));
// try to salvage request by dropping its first line
auto eol = find(m_requests, '\n');
if (eol != m_requests.end())
m_requests = String{eol+1, m_requests.end()};
else
m_requests = String{};
pos = std::min(m_requests.end(), find(m_requests, '\n')+1);
}
if (pos)
m_requests = String{pos, m_requests.end()};