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|
|
| local errors = {} |
|
|
| local http_error_methods = {} |
| local http_error_mt = { |
| __name = "http.h2_error"; |
| __index = http_error_methods; |
| } |
|
|
| function http_error_mt:__tostring() |
| local s = string.format("%s(0x%x): %s", self.name, self.code, self.description) |
| if self.message then |
| s = s .. ": " .. self.message |
| end |
| if self.traceback then |
| s = s .. "\n" .. self.traceback |
| end |
| return s |
| end |
|
|
| function http_error_methods:new(ob) |
| return setmetatable({ |
| name = ob.name or self.name; |
| code = ob.code or self.code; |
| description = ob.description or self.description; |
| message = ob.message; |
| traceback = ob.traceback; |
| stream_error = ob.stream_error or false; |
| }, http_error_mt) |
| end |
|
|
| function http_error_methods:new_traceback(message, stream_error, lvl) |
| if lvl == nil then |
| lvl = 2 |
| elseif lvl ~= 0 then |
| lvl = lvl + 1 |
| end |
| local e = { |
| message = message; |
| stream_error = stream_error; |
| } |
| if lvl ~= 0 then |
| |
| |
| e.traceback = debug.traceback("", lvl) |
| end |
|
|
| return self:new(e) |
| end |
|
|
| function http_error_methods:error(...) |
| error(self:new_traceback(...), 0) |
| end |
| http_error_mt.__call = http_error_methods.error |
|
|
| function http_error_methods:assert(cond, ...) |
| if cond then |
| return cond, ... |
| else |
| local message = ... |
| self:error(message, 2) |
| |
| end |
| end |
|
|
| local function is(ob) |
| return getmetatable(ob) == http_error_mt |
| end |
|
|
| local function add_error(name, code, description) |
| local e = setmetatable({ |
| name = name; |
| code = code; |
| description = description; |
| }, http_error_mt) |
| errors[name] = e |
| errors[code] = e |
| end |
|
|
| |
| add_error("NO_ERROR", 0x0, "Graceful shutdown") |
| add_error("PROTOCOL_ERROR", 0x1, "Protocol error detected") |
| add_error("INTERNAL_ERROR", 0x2, "Implementation fault") |
| add_error("FLOW_CONTROL_ERROR", 0x3, "Flow control limits exceeded") |
| add_error("SETTINGS_TIMEOUT", 0x4, "Settings not acknowledged") |
| add_error("STREAM_CLOSED", 0x5, "Frame received for closed stream") |
| add_error("FRAME_SIZE_ERROR", 0x6, "Frame size incorrect") |
| add_error("REFUSED_STREAM", 0x7, "Stream not processed") |
| add_error("CANCEL", 0x8, "Stream cancelled") |
| add_error("COMPRESSION_ERROR", 0x9, "Compression state not updated") |
| add_error("CONNECT_ERROR", 0xa, "TCP connection error for CONNECT method") |
| add_error("ENHANCE_YOUR_CALM", 0xb, "Processing capacity exceeded") |
| add_error("INADEQUATE_SECURITY", 0xc, "Negotiated TLS parameters not acceptable") |
| add_error("HTTP_1_1_REQUIRED", 0xd, "Use HTTP/1.1 for the request") |
|
|
| return { |
| errors = errors; |
| is = is; |
| } |
|
|
