spacewander commented on a change in pull request #2964:
URL: https://github.com/apache/apisix/pull/2964#discussion_r538189387
##########
File path: apisix/core/ctx.lua
##########
@@ -15,22 +15,96 @@
-- limitations under the License.
--
local core_str = require("apisix.core.string")
+local core_tab = require("apisix.core.table")
+local request = require("apisix.core.request")
local log = require("apisix.core.log")
+local config_local = require("apisix.core.config_local")
local tablepool = require("tablepool")
local get_var = require("resty.ngxvar").fetch
local get_request = require("resty.ngxvar").request
local ck = require "resty.cookie"
+local gq_parse = require("graphql").parse
local setmetatable = setmetatable
local sub_str = string.sub
local rawset = rawset
+local ngx = ngx
local ngx_var = ngx.var
local re_gsub = ngx.re.gsub
+local ipairs = ipairs
local type = type
local error = error
-local ngx = ngx
+local pcall = pcall
local _M = {version = 0.2}
+local GRAPHQL_DEFAULT_MAX_SIZE = 1048576 -- 1MiB
+
+
+local function parse_graphql(ctx)
+ local local_conf, err = config_local.local_conf()
+ if not local_conf then
+ return nil, "failed to get local conf: " .. err
+ end
+
+ local max_size = GRAPHQL_DEFAULT_MAX_SIZE
+ local size = core_tab.try_read_attr(local_conf, "graphql", "max_size")
+ if size then
+ max_size = size
+ end
+
+ local body, err = request.get_body(max_size, ctx)
+ if not body then
+ return nil, "failed to read graphql body: " .. err
+ end
+
+ local ok, res = pcall(gq_parse, body)
+ if not ok then
+ return nil, "failed to parse graphql: " .. res .. " body: " .. body
+ end
+
+ if #res.definitions == 0 then
+ return nil, "empty graphql: " .. body
+ end
+
+ return res
+end
+
+
+local function get_parsed_graphql(ctx)
+ if not ctx._graphql then
Review comment:
updated
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