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handlers.go
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handlers.go
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package app
import (
"errors"
"fmt"
"net/url"
"strings"
"github.com/MindHunter86/addie/balancer"
"github.com/MindHunter86/addie/utils"
"github.com/gofiber/fiber/v2"
"github.com/rs/zerolog"
)
func (*App) getBalancersClusterArg(ctx *fiber.Ctx) (cluster balancer.BalancerCluster, e error) {
var buf string
if buf = ctx.Query("cluster"); buf == "" {
e = fiber.NewError(fiber.StatusBadRequest, "cluster could not be empty")
return
}
switch buf = strings.TrimSpace(buf); buf {
case "cache-nodes":
cluster = balancer.BalancerClusterNodes
case "cache-cloud":
cluster = balancer.BalancerClusterCloud
default:
e = fiber.NewError(fiber.StatusBadRequest, "invalid cluster name")
}
return
}
func (m *App) fbHndApiBalancerStats(ctx *fiber.Ctx) (e error) {
ctx.Set(fiber.HeaderContentType, fiber.MIMETextPlainCharsetUTF8)
var cluster balancer.BalancerCluster
if cluster, e = m.getBalancersClusterArg(ctx); e != nil {
return
}
switch cluster {
case balancer.BalancerClusterNodes:
fmt.Fprint(ctx, m.bareBalancer.GetStats())
case balancer.BalancerClusterCloud:
fmt.Fprint(ctx, m.cloudBalancer.GetStats())
}
return ctx.SendStatus(fiber.StatusOK)
}
func (m *App) fbHndApiStatsReset(ctx *fiber.Ctx) (e error) {
ctx.Set(fiber.HeaderContentType, fiber.MIMETextPlainCharsetUTF8)
rlog(ctx).Debug().Msg("servers stats reset")
var cluster balancer.BalancerCluster
if cluster, e = m.getBalancersClusterArg(ctx); e != nil {
return
}
switch cluster {
case balancer.BalancerClusterNodes:
m.bareBalancer.ResetStats()
case balancer.BalancerClusterCloud:
m.cloudBalancer.ResetStats()
}
return ctx.SendStatus(fiber.StatusNoContent)
}
func (m *App) fbHndApiBalancerReset(ctx *fiber.Ctx) (e error) {
ctx.Set(fiber.HeaderContentType, fiber.MIMETextPlainCharsetUTF8)
rlog(ctx).Debug().Msg("upstream reset")
var cluster balancer.BalancerCluster
if cluster, e = m.getBalancersClusterArg(ctx); e != nil {
return
}
switch cluster {
case balancer.BalancerClusterNodes:
m.bareBalancer.ResetUpstream()
case balancer.BalancerClusterCloud:
m.cloudBalancer.ResetUpstream()
}
return ctx.SendStatus(fiber.StatusNoContent)
}
func (m *App) fbHndApiBlockIp(ctx *fiber.Ctx) error {
ctx.Set(fiber.HeaderContentType, fiber.MIMETextPlainCharsetUTF8)
ip := ctx.Query("ip")
if ip == "" {
return fiber.NewError(fiber.StatusBadRequest, "given ip is empty")
}
if e := gConsul.addIpToBlocklist(ip); e != nil {
return fiber.NewError(fiber.StatusInternalServerError, e.Error())
}
fmt.Fprintln(ctx, ip+" has been banned")
return ctx.SendStatus(fiber.StatusOK)
}
func (m *App) fbHndApiUnblockIp(ctx *fiber.Ctx) error {
ctx.Set(fiber.HeaderContentType, fiber.MIMETextPlainCharsetUTF8)
ip := ctx.Query("ip")
if ip == "" {
return fiber.NewError(fiber.StatusBadRequest, "given ip is empty")
}
if e := gConsul.removeIpFromBlocklist(ip); e != nil {
return fiber.NewError(fiber.StatusInternalServerError, e.Error())
}
fmt.Fprintln(ctx, ip+" has been unbanned")
return ctx.SendStatus(fiber.StatusOK)
}
func (m *App) fbHndApiBlockReset(ctx *fiber.Ctx) error {
ctx.Set(fiber.HeaderContentType, fiber.MIMETextPlainCharsetUTF8)
if e := gConsul.resetIpsInBlocklist(); e != nil {
return fiber.NewError(fiber.StatusInternalServerError, e.Error())
}
return ctx.SendStatus(fiber.StatusNoContent)
}
func (m *App) fbHndApiBListSwitch(ctx *fiber.Ctx) error {
ctx.Set(fiber.HeaderContentType, fiber.MIMETextPlainCharsetUTF8)
enabled := ctx.Query("enabled")
switch enabled {
case "0":
fallthrough
case "1":
if e := gConsul.updateBlocklistSwitcher(enabled); e != nil {
return fiber.NewError(fiber.StatusInternalServerError, e.Error())
}
default:
return fiber.NewError(fiber.StatusBadRequest, "enabled query can be only 0 or 1")
}
return ctx.SendStatus(fiber.StatusNoContent)
}
func (m *App) fbHndApiLimiterSwitch(ctx *fiber.Ctx) error {
ctx.Set(fiber.HeaderContentType, fiber.MIMETextPlainCharsetUTF8)
enabled := ctx.Query("enabled")
switch enabled {
case "0":
fallthrough
case "1":
if e := gConsul.updateLimiterSwitcher(enabled); e != nil {
return fiber.NewError(fiber.StatusInternalServerError, e.Error())
}
default:
return fiber.NewError(fiber.StatusBadRequest, "enabled query can be only 0 or 1")
}
return ctx.SendStatus(fiber.StatusNoContent)
}
func (m *App) fbHndApiLoggerLevel(ctx *fiber.Ctx) error {
lvl := ctx.Query("level")
switch lvl {
case "trace":
zerolog.SetGlobalLevel(zerolog.TraceLevel)
case "debug":
zerolog.SetGlobalLevel(zerolog.DebugLevel)
case "info":
zerolog.SetGlobalLevel(zerolog.InfoLevel)
case "warn":
zerolog.SetGlobalLevel(zerolog.WarnLevel)
case "error":
zerolog.SetGlobalLevel(zerolog.ErrorLevel)
default:
return fiber.NewError(fiber.StatusBadRequest, "unknown level sent")
}
rlog(ctx).Error().Msgf("[falsepositive]> new log level applied - %s", lvl)
fmt.Fprintln(ctx, lvl+" logger level has been applied")
return ctx.SendStatus(fiber.StatusOK)
}
func (*App) fbHndApiPreCondErr(ctx *fiber.Ctx) error {
switch ctx.Locals("errors").(appMidError) {
case errMidAppPreHeaderUri:
rlog(ctx).Warn().Msg(errApiPreBadUri.Error())
ctx.Set("X-Error", errApiPreBadUri.Error())
ctx.SendString(errApiPreBadUri.Error())
case errMidAppPreHeaderId:
rlog(ctx).Warn().Msg(errApiPreBadId.Error())
ctx.Set("X-Error", errApiPreBadId.Error())
ctx.SendString(errApiPreBadId.Error())
case errMidAppPreHeaderServer:
rlog(ctx).Warn().Msg(errApiPreBadServer.Error())
ctx.Set("X-Error", errApiPreBadServer.Error())
ctx.SendString(errApiPreBadServer.Error())
case errMidAppPreUriRegexp:
rlog(ctx).Warn().Msg(errApiPreUriRegexp.Error())
ctx.Set("X-Error", errApiPreUriRegexp.Error())
ctx.SendString(errApiPreUriRegexp.Error())
default:
rlog(ctx).Warn().Msg("unknown error")
}
return ctx.SendStatus(fiber.StatusPreconditionFailed)
}
func (m *App) fbHndAppRequestSign(ctx *fiber.Ctx) (e error) {
m.lapRequestTimer(ctx, utils.FbReqTmrReqSign)
rlog(ctx).Trace().Msg("new 'sign request' request")
srv, uri := ctx.Locals("srv").(string), ctx.Locals("uri").(string)
expires, extra := m.getHlpExtra(
uri,
srv,
ctx.Locals("uid").(string),
)
var rrl *url.URL
if rrl, e = url.Parse(srv + uri); e != nil {
rlog(ctx).Debug().Str("url_parse", srv+uri).Str("remote_addr", ctx.IP()).
Msg("could not sign request; url.Parse error")
return fiber.NewError(fiber.StatusInternalServerError, e.Error())
}
var rgs = &url.Values{}
rgs.Add("expires", expires)
rgs.Add("extra", extra)
rrl.RawQuery, rrl.Scheme = rgs.Encode(), "https"
rlog(ctx).Debug().Str("computed_request", rrl.String()).Str("remote_addr", ctx.IP()).
Msg("request signing completed")
ctx.Set(apiHeaderLocation, rrl.String())
return ctx.SendStatus(fiber.StatusNoContent)
}
func (m *App) fbHndBlcNodesBalance(ctx *fiber.Ctx) error {
ctx.Set(fiber.HeaderContentType, fiber.MIMETextPlainCharsetUTF8)
rlog(ctx).Trace().Msg("im here!")
err := m.balanceFiberRequest(ctx, []balancer.Balancer{m.bareBalancer})
var ferr *fiber.Error
if errors.As(err, &ferr) {
rlog(ctx).Trace().Msgf("im here! %d %s", ferr.Code, ferr.Message)
// ! error here
return err
} else if err != nil {
// ! undefined error here
panic("undefined error in BM balancer")
}
ctx.Set("X-Location", ctx.Locals("srv").(string))
return ctx.SendStatus(fiber.StatusNoContent)
}