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spec/core_storagemanager_spec.lua @ 11665:148075532021
net.server_epoll: Prevent stack overflow of opportunistic writes
net.http.files serving a big enough file on a fast enough connection
with opportunistic_writes enabled could trigger a stack overflow through
repeatedly serving more data that immediately gets sent, draining the
buffer and triggering more data to be sent. This also blocked the server
on a single task until completion or an error.
This change prevents nested opportunistic writes, which should prevent
the stack overflow, at the cost of reduced download speed, but this is
unlikely to be noticeable outside of Gbit networks. Speed at the cost of
blocking other processing is not worth it, especially with the risk of
stack overflow.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 11 Jul 2021 09:39:21 +0200 |
parent | 11424:2358299bc928 |
child | 11739:e0d0680e04cc |
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local unpack = table.unpack or unpack; -- luacheck: ignore 113 local server = require "net.server_select"; package.loaded["net.server"] = server; local st = require "util.stanza"; local function mock_prosody() _G.prosody = { core_post_stanza = function () end; events = require "util.events".new(); hosts = {}; paths = { data = "./data"; }; }; end local configs = { memory = { storage = "memory"; }; internal = { storage = "internal"; }; sqlite = { storage = "sql"; sql = { driver = "SQLite3", database = "prosody-tests.sqlite" }; }; mysql = { storage = "sql"; sql = { driver = "MySQL", database = "prosody", username = "prosody", password = "secret", host = "localhost" }; }; postgres = { storage = "sql"; sql = { driver = "PostgreSQL", database = "prosody", username = "prosody", password = "secret", host = "localhost" }; }; }; local test_host = "storage-unit-tests.invalid"; describe("storagemanager", function () for backend, backend_config in pairs(configs) do local tagged_name = "#"..backend; if backend ~= backend_config.storage then tagged_name = tagged_name.." #"..backend_config.storage; end insulate(tagged_name.." #storage backend", function () mock_prosody(); local config = require "core.configmanager"; local sm = require "core.storagemanager"; local hm = require "core.hostmanager"; local mm = require "core.modulemanager"; -- Simple check to ensure insulation is working correctly assert.is_nil(config.get(test_host, "storage")); for k, v in pairs(backend_config) do config.set(test_host, k, v); end assert(hm.activate(test_host, {})); sm.initialize_host(test_host); assert(mm.load(test_host, "storage_"..backend_config.storage)); describe("key-value stores", function () -- These tests rely on being executed in order, disable any order -- randomization for this block randomize(false); local store; it("may be opened", function () store = assert(sm.open(test_host, "test")); end); local simple_data = { foo = "bar" }; it("may set data for a user", function () assert(store:set("user9999", simple_data)); end); it("may get data for a user", function () assert.same(simple_data, assert(store:get("user9999"))); end); it("may remove data for a user", function () assert(store:set("user9999", nil)); local ret, err = store:get("user9999"); assert.is_nil(ret); assert.is_nil(err); end); end); describe("map stores", function () -- These tests rely on being executed in order, disable any order -- randomization for this block randomize(false); local store, kv_store; it("may be opened", function () store = assert(sm.open(test_host, "test-map", "map")); end); it("may be opened as a keyval store", function () kv_store = assert(sm.open(test_host, "test-map", "keyval")); end); it("may set a specific key for a user", function () assert(store:set("user9999", "foo", "bar")); assert.same(kv_store:get("user9999"), { foo = "bar" }); end); it("may get a specific key for a user", function () assert.equal("bar", store:get("user9999", "foo")); end); it("may find all users with a specific key", function () assert.is_function(store.get_all); assert(store:set("user9999b", "bar", "bar")); assert(store:set("user9999c", "foo", "blah")); local ret, err = store:get_all("foo"); assert.is_nil(err); assert.same({ user9999 = "bar", user9999c = "blah" }, ret); end); it("rejects empty or non-string keys to get_all", function () assert.is_function(store.get_all); do local ret, err = store:get_all(""); assert.is_nil(ret); assert.is_not_nil(err); end do local ret, err = store:get_all(true); assert.is_nil(ret); assert.is_not_nil(err); end end); it("rejects empty or non-string keys to delete_all", function () assert.is_function(store.delete_all); do local ret, err = store:delete_all(""); assert.is_nil(ret); assert.is_not_nil(err); end do local ret, err = store:delete_all(true); assert.is_nil(ret); assert.is_not_nil(err); end end); it("may delete all instances of a specific key", function () assert.is_function(store.delete_all); assert(store:set("user9999b", "foo", "hello")); assert(store:delete_all("bar")); -- Ensure key was deleted do local ret, err = store:get("user9999b", "bar"); assert.is_nil(ret); assert.is_nil(err); end -- Ensure other users/keys are intact do local ret, err = store:get("user9999", "foo"); assert.equal("bar", ret); assert.is_nil(err); end do local ret, err = store:get("user9999b", "foo"); assert.equal("hello", ret); assert.is_nil(err); end do local ret, err = store:get("user9999c", "foo"); assert.equal("blah", ret); assert.is_nil(err); end end); it("may remove data for a specific key for a user", function () assert(store:set("user9999", "foo", nil)); do local ret, err = store:get("user9999", "foo"); assert.is_nil(ret); assert.is_nil(err); end assert(store:set("user9999b", "foo", nil)); do local ret, err = store:get("user9999b", "foo"); assert.is_nil(ret); assert.is_nil(err); end end); end); describe("archive stores", function () randomize(false); local archive; it("can be opened", function () archive = assert(sm.open(test_host, "test-archive", "archive")); end); local test_stanza = st.stanza("test", { xmlns = "urn:example:foo" }) :tag("foo"):up() :tag("foo"):up() :reset(); local test_time = 1539204123; local test_data = { { nil, test_stanza, test_time, "contact@example.com" }; { nil, test_stanza, test_time+1, "contact2@example.com" }; { nil, test_stanza, test_time+2, "contact2@example.com" }; { nil, test_stanza, test_time-1, "contact2@example.com" }; { nil, test_stanza, test_time-1, "contact3@example.com" }; { nil, test_stanza, test_time+0, "contact3@example.com" }; { nil, test_stanza, test_time+1, "contact3@example.com" }; }; it("can be added to", function () for _, data_item in ipairs(test_data) do local id = archive:append("user", unpack(data_item, 1, 4)); assert.truthy(id); data_item[1] = id; end end); describe("can be queried", function () it("for all items", function () -- luacheck: ignore 211/err local data, err = archive:find("user", {}); assert.truthy(data); local count = 0; for id, item, when in data do count = count + 1; assert.truthy(id); assert(st.is_stanza(item)); assert.equal("test", item.name); assert.equal("urn:example:foo", item.attr.xmlns); assert.equal(2, #item.tags); assert.equal(test_data[count][3], when); end assert.equal(#test_data, count); end); it("by JID", function () -- luacheck: ignore 211/err local data, err = archive:find("user", { with = "contact@example.com"; }); assert.truthy(data); local count = 0; for id, item, when in data do count = count + 1; assert.truthy(id); assert(st.is_stanza(item)); assert.equal("test", item.name); assert.equal("urn:example:foo", item.attr.xmlns); assert.equal(2, #item.tags); assert.equal(test_time, when); end assert.equal(1, count); end); it("by time (end)", function () -- luacheck: ignore 211/err local data, err = archive:find("user", { ["end"] = test_time; }); assert.truthy(data); local count = 0; for id, item, when in data do count = count + 1; assert.truthy(id); assert(st.is_stanza(item)); assert.equal("test", item.name); assert.equal("urn:example:foo", item.attr.xmlns); assert.equal(2, #item.tags); assert(test_time >= when); end assert.equal(4, count); end); it("by time (start)", function () -- luacheck: ignore 211/err local data, err = archive:find("user", { ["start"] = test_time; }); assert.truthy(data); local count = 0; for id, item, when in data do count = count + 1; assert.truthy(id); assert(st.is_stanza(item)); assert.equal("test", item.name); assert.equal("urn:example:foo", item.attr.xmlns); assert.equal(2, #item.tags); assert(test_time <= when); end assert.equal(#test_data - 2, count); end); it("by time (start+end)", function () -- luacheck: ignore 211/err local data, err = archive:find("user", { ["start"] = test_time; ["end"] = test_time+1; }); assert.truthy(data); local count = 0; for id, item, when in data do count = count + 1; assert.truthy(id); assert(st.is_stanza(item)); assert.equal("test", item.name); assert.equal("urn:example:foo", item.attr.xmlns); assert.equal(2, #item.tags); assert(when >= test_time, ("%d >= %d"):format(when, test_time)); assert(when <= test_time+1, ("%d <= %d"):format(when, test_time+1)); end assert.equal(4, count); end); it("by id (after)", function () -- luacheck: ignore 211/err local data, err = archive:find("user", { ["after"] = test_data[2][1]; }); assert.truthy(data); local count = 0; for id, item in data do count = count + 1; assert.truthy(id); assert.equal(test_data[2+count][1], id); assert(st.is_stanza(item)); assert.equal("test", item.name); assert.equal("urn:example:foo", item.attr.xmlns); assert.equal(2, #item.tags); end assert.equal(5, count); end); it("by id (before)", function () -- luacheck: ignore 211/err local data, err = archive:find("user", { ["before"] = test_data[4][1]; }); assert.truthy(data); local count = 0; for id, item in data do count = count + 1; assert.truthy(id); assert.equal(test_data[count][1], id); assert(st.is_stanza(item)); assert.equal("test", item.name); assert.equal("urn:example:foo", item.attr.xmlns); assert.equal(2, #item.tags); end assert.equal(3, count); end); it("by id (before and after) #full_id_range", function () assert.truthy(archive.caps and archive.caps.full_id_range, "full ID range support") local data, err = archive:find("user", { ["after"] = test_data[1][1]; ["before"] = test_data[4][1]; }); assert.truthy(data, err); local count = 0; for id, item in data do count = count + 1; assert.truthy(id); assert.equal(test_data[1+count][1], id); assert(st.is_stanza(item)); assert.equal("test", item.name); assert.equal("urn:example:foo", item.attr.xmlns); assert.equal(2, #item.tags); end assert.equal(2, count); end); it("by multiple ids", function () assert.truthy(archive.caps and archive.caps.ids, "Multiple ID query") local data, err = archive:find("user", { ["ids"] = { test_data[2][1]; test_data[4][1]; }; }); assert.truthy(data, err); local count = 0; for id, item in data do count = count + 1; assert.truthy(id); assert.equal(test_data[count==1 and 2 or 4][1], id); assert(st.is_stanza(item)); assert.equal("test", item.name); assert.equal("urn:example:foo", item.attr.xmlns); assert.equal(2, #item.tags); end assert.equal(2, count); end); it("can be queried in reverse", function () local data, err = archive:find("user", { reverse = true; limit = 3; }); assert.truthy(data, err); local i = #test_data; for id, item in data do assert.truthy(id); assert.equal(test_data[i][1], id); assert(st.is_stanza(item)); assert.equal("test", item.name); assert.equal("urn:example:foo", item.attr.xmlns); assert.equal(2, #item.tags); i = i - 1; end end); end); it("can selectively delete items", function () local delete_id; do local data = assert(archive:find("user", {})); local count = 0; for id, item, when in data do --luacheck: ignore 213/item 213/when count = count + 1; if count == 2 then delete_id = id; end assert.truthy(id); end assert.equal(#test_data, count); end assert(archive:delete("user", { key = delete_id })); do local data = assert(archive:find("user", {})); local count = 0; for id, item, when in data do --luacheck: ignore 213/item 213/when count = count + 1; assert.truthy(id); assert.not_equal(delete_id, id); end assert.equal(#test_data-1, count); end end); it("can be purged", function () -- luacheck: ignore 211/err local ok, err = archive:delete("user"); assert.truthy(ok); local data, err = archive:find("user", { with = "contact@example.com"; }); assert.truthy(data); local count = 0; for id, item, when in data do -- luacheck: ignore id item when count = count + 1; end assert.equal(0, count); end); it("can truncate the oldest items", function () local username = "user-truncate"; for i = 1, 10 do assert(archive:append(username, nil, test_stanza, i, "contact@example.com")); end assert(archive:delete(username, { truncate = 3 })); do local data = assert(archive:find(username, {})); local count = 0; for id, item, when in data do --luacheck: ignore 213/when count = count + 1; assert.truthy(id); assert(st.is_stanza(item)); assert(when > 7, ("%d > 7"):format(when)); end assert.equal(3, count); end end); it("overwrites existing keys with new data", function () local prefix = ("a"):rep(50); local username = "user-overwrite"; assert(archive:append(username, prefix.."-1", test_stanza, test_time, "contact@example.com")); assert(archive:append(username, prefix.."-2", test_stanza, test_time, "contact@example.com")); do local data = assert(archive:find(username, {})); local count = 0; for id, item, when in data do --luacheck: ignore 213/when count = count + 1; assert.truthy(id); assert.equals(("%s-%d"):format(prefix, count), id); assert(st.is_stanza(item)); end assert.equal(2, count); end local new_stanza = st.clone(test_stanza); new_stanza.attr.foo = "bar"; assert(archive:append(username, prefix.."-2", new_stanza, test_time+1, "contact2@example.com")); do local data = assert(archive:find(username, {})); local count = 0; for id, item, when in data do count = count + 1; assert.truthy(id); assert.equals(("%s-%d"):format(prefix, count), id); assert(st.is_stanza(item)); if count == 2 then assert.equals(test_time+1, when); assert.equals("bar", item.attr.foo); end end assert.equal(2, count); end end); it("can contain multiple long unique keys #issue1073", function () local prefix = ("a"):rep(50); assert(archive:append("user-issue1073", prefix.."-1", test_stanza, test_time, "contact@example.com")); assert(archive:append("user-issue1073", prefix.."-2", test_stanza, test_time, "contact@example.com")); local data = assert(archive:find("user-issue1073", {})); local count = 0; for id, item, when in data do --luacheck: ignore 213/when count = count + 1; assert.truthy(id); assert(st.is_stanza(item)); end assert.equal(2, count); assert(archive:delete("user-issue1073")); end); it("can be treated as a map store", function () assert.falsy(archive:get("mapuser", "no-such-id")); assert.falsy(archive:set("mapuser", "no-such-id", test_stanza)); local id = archive:append("mapuser", nil, test_stanza, test_time, "contact@example.com"); do local stanza_roundtrip, when, with = archive:get("mapuser", id); assert.same(tostring(test_stanza), tostring(stanza_roundtrip), "same stanza is returned"); assert.equal(test_time, when, "same 'when' is returned"); assert.equal("contact@example.com", with, "same 'with' is returned"); end local replacement_stanza = st.stanza("test", { xmlns = "urn:example:foo" }) :tag("bar"):up() :reset(); assert(archive:set("mapuser", id, replacement_stanza, test_time+1)); do local replaced, when, with = archive:get("mapuser", id); assert.same(tostring(replacement_stanza), tostring(replaced), "replaced stanza is returned"); assert.equal(test_time+1, when, "modified 'when' is returned"); assert.equal("contact@example.com", with, "original 'with' is returned"); end end); end); end); end end);