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analyze.go
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analyze.go
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/**
* Copyright (c) F5, Inc.
*
* This source code is licensed under the Apache License, Version 2.0 license found in the
* LICENSE file in the root directory of this source tree.
*/
package crossplane
import (
"fmt"
)
// bit masks for different directive argument styles.
const (
ngxConfNoArgs = 0x00000001 // 0 args
ngxConfTake1 = 0x00000002 // 1 args
ngxConfTake2 = 0x00000004 // 2 args
ngxConfTake3 = 0x00000008 // 3 args
ngxConfTake4 = 0x00000010 // 4 args
ngxConfTake5 = 0x00000020 // 5 args
ngxConfTake6 = 0x00000040 // 6 args
// ngxConfTake7 = 0x00000080 // 7 args (currently unused).
ngxConfBlock = 0x00000100 // followed by block
ngxConfExpr = 0x00000200 // directive followed by expression in parentheses `()`
ngxConfFlag = 0x00000400 // 'on' or 'off'
ngxConfAny = 0x00000800 // >=0 args
ngxConf1More = 0x00001000 // >=1 args
ngxConf2More = 0x00002000 // >=2 args
// some helpful argument style aliases.
ngxConfTake12 = ngxConfTake1 | ngxConfTake2
ngxConfTake13 = ngxConfTake1 | ngxConfTake3
ngxConfTake23 = ngxConfTake2 | ngxConfTake3
ngxConfTake34 = ngxConfTake3 | ngxConfTake4
ngxConfTake123 = ngxConfTake12 | ngxConfTake3
ngxConfTake1234 = ngxConfTake123 | ngxConfTake4
// bit masks for different directive locations.
ngxDirectConf = 0x00010000 // main file (not used)
ngxMainConf = 0x00040000 // main context
ngxEventConf = 0x00080000 // events
ngxMailMainConf = 0x00100000 // mail
ngxMailSrvConf = 0x00200000 // mail > server
ngxStreamMainConf = 0x00400000 // stream
ngxStreamSrvConf = 0x00800000 // stream > server
ngxStreamUpsConf = 0x01000000 // stream > upstream
ngxHTTPMainConf = 0x02000000 // http
ngxHTTPSrvConf = 0x04000000 // http > server
ngxHTTPLocConf = 0x08000000 // http > location
ngxHTTPUpsConf = 0x10000000 // http > upstream
ngxHTTPSifConf = 0x20000000 // http > server > if
ngxHTTPLifConf = 0x40000000 // http > location > if
ngxHTTPLmtConf = 0x80000000 // http > location > limit_except
)
// helpful directive location alias describing "any" context
// doesn't include ngxHTTPSifConf, ngxHTTPLifConf, or ngxHTTPLmtConf.
const ngxAnyConf = ngxMainConf | ngxEventConf | ngxMailMainConf | ngxMailSrvConf |
ngxStreamMainConf | ngxStreamSrvConf | ngxStreamUpsConf |
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxHTTPUpsConf
// map for getting bitmasks from certain context tuples
//
//nolint:gochecknoglobals
var contexts = map[string]uint{
blockCtx{}.key(): ngxMainConf,
blockCtx{"events"}.key(): ngxEventConf,
blockCtx{"mail"}.key(): ngxMailMainConf,
blockCtx{"mail", "server"}.key(): ngxMailSrvConf,
blockCtx{"stream"}.key(): ngxStreamMainConf,
blockCtx{"stream", "server"}.key(): ngxStreamSrvConf,
blockCtx{"stream", "upstream"}.key(): ngxStreamUpsConf,
blockCtx{"http"}.key(): ngxHTTPMainConf,
blockCtx{"http", "server"}.key(): ngxHTTPSrvConf,
blockCtx{"http", "location"}.key(): ngxHTTPLocConf,
blockCtx{"http", "upstream"}.key(): ngxHTTPUpsConf,
blockCtx{"http", "server", "if"}.key(): ngxHTTPSifConf,
blockCtx{"http", "location", "if"}.key(): ngxHTTPLifConf,
blockCtx{"http", "location", "limit_except"}.key(): ngxHTTPLmtConf,
}
func enterBlockCtx(stmt *Directive, ctx blockCtx) blockCtx {
// don't nest because ngxHTTPLocConf just means "location block in http"
if len(ctx) > 0 && ctx[0] == "http" && stmt.Directive == "location" {
return blockCtx{"http", "location"}
}
// no other block contexts can be nested like location so just append it
return append(ctx, stmt.Directive)
}
//nolint:gocyclo,funlen,gocognit
func analyze(fname string, stmt *Directive, term string, ctx blockCtx, options *ParseOptions) error {
masks, knownDirective := directives[stmt.Directive]
currCtx, knownContext := contexts[ctx.key()]
// if strict and directive isn't recognized then throw error
if options.ErrorOnUnknownDirectives && !knownDirective {
return &ParseError{
What: fmt.Sprintf(`unknown directive "%s"`, stmt.Directive),
File: &fname,
Line: &stmt.Line,
Statement: stmt.String(),
BlockCtx: ctx.getLastBlock(),
}
}
// if we don't know where this directive is allowed and how
// many arguments it can take then don't bother analyzing it
if !knownContext || !knownDirective {
return nil
}
// if this directive can't be used in this context then throw an error
var ctxMasks []uint
if options.SkipDirectiveContextCheck {
ctxMasks = masks
} else {
for _, mask := range masks {
if (mask & currCtx) != 0 {
ctxMasks = append(ctxMasks, mask)
}
}
if len(ctxMasks) == 0 && !options.SkipDirectiveContextCheck {
return &ParseError{
What: fmt.Sprintf(`"%s" directive is not allowed here`, stmt.Directive),
File: &fname,
Line: &stmt.Line,
Statement: stmt.String(),
BlockCtx: ctx.getLastBlock(),
}
}
}
if options.SkipDirectiveArgsCheck {
return nil
}
// do this in reverse because we only throw errors at the end if no masks
// are valid, and typically the first bit mask is what the parser expects
var what string
for i := 0; i < len(ctxMasks); i++ {
mask := ctxMasks[i]
// if the directive is an expression type, there must be '(' 'expr' ')' args
if (mask&ngxConfExpr) > 0 && !validExpr(stmt) {
what = fmt.Sprintf(`directive "%s"'s is not enclosed in parentheses`, stmt.Directive)
continue
}
// if the directive isn't a block but should be according to the mask
if (mask&ngxConfBlock) != 0 && term != "{" {
what = fmt.Sprintf(`directive "%s" has no opening "{"`, stmt.Directive)
continue
}
// if the directive is a block but shouldn't be according to the mask
if (mask&ngxConfBlock) == 0 && term != ";" {
what = fmt.Sprintf(`directive "%s" is not terminated by ";"`, stmt.Directive)
continue
}
// use mask to check the directive's arguments
//nolint:gocritic
if ((mask>>len(stmt.Args)&1) != 0 && len(stmt.Args) <= 7) || // NOARGS to TAKE7
((mask&ngxConfFlag) != 0 && len(stmt.Args) == 1 && validFlag(stmt.Args[0])) ||
((mask & ngxConfAny) != 0) ||
((mask&ngxConf1More) != 0 && len(stmt.Args) >= 1) ||
((mask&ngxConf2More) != 0 && len(stmt.Args) >= 2) {
return nil
} else if (mask&ngxConfFlag) != 0 && len(stmt.Args) == 1 && !validFlag(stmt.Args[0]) {
what = fmt.Sprintf(`invalid value "%s" in "%s" directive, it must be "on" or "off"`, stmt.Args[0], stmt.Directive)
} else {
what = fmt.Sprintf(`invalid number of arguments in "%s" directive`, stmt.Directive)
}
}
return &ParseError{
What: what,
File: &fname,
Line: &stmt.Line,
Statement: stmt.String(),
BlockCtx: ctx.getLastBlock(),
}
}
// This dict maps directives to lists of bit masks that define their behavior.
//
// Each bit mask describes these behaviors:
// - how many arguments the directive can take
// - whether or not it is a block directive
// - whether this is a flag (takes one argument that's either "on" or "off")
// - which contexts it's allowed to be in
//
// Since some directives can have different behaviors in different contexts, we
//
// use lists of bit masks, each describing a valid way to use the directive.
//
// Definitions for directives that're available in the open source version of
//
// nginx were taken directively from the source code. In fact, the variable
// names for the bit masks defined above were taken from the nginx source code.
//
// Definitions for directives that're only available for nginx+ were inferred
//
// from the documentation at http://nginx.org/en/docs/.
//
//nolint:gochecknoglobals
var directives = map[string][]uint{
"absolute_redirect": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"accept_mutex": {
ngxEventConf | ngxConfFlag,
},
"accept_mutex_delay": {
ngxEventConf | ngxConfTake1,
},
"access_log": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxHTTPLifConf | ngxHTTPLmtConf | ngxConf1More,
ngxStreamMainConf | ngxStreamSrvConf | ngxConf1More,
},
"add_after_body": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"add_before_body": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"add_header": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxHTTPLifConf | ngxConfTake23,
},
"add_trailer": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxHTTPLifConf | ngxConfTake23,
},
"addition_types": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"aio": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"aio_write": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"alias": {
ngxHTTPLocConf | ngxConfTake1,
},
"allow": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxHTTPLmtConf | ngxConfTake1,
ngxStreamMainConf | ngxStreamSrvConf | ngxConfTake1,
},
"ancient_browser": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"ancient_browser_value": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"auth_basic": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxHTTPLmtConf | ngxConfTake1,
},
"auth_basic_user_file": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxHTTPLmtConf | ngxConfTake1,
},
"auth_delay": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"auth_http": {
ngxMailMainConf | ngxMailSrvConf | ngxConfTake1,
},
"auth_Httpheader": {
ngxMailMainConf | ngxMailSrvConf | ngxConfTake2,
},
"auth_Httppass_client_cert": {
ngxMailMainConf | ngxMailSrvConf | ngxConfFlag,
},
"auth_Httptimeout": {
ngxMailMainConf | ngxMailSrvConf | ngxConfTake1,
},
"auth_request": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"auth_request_set": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake2,
},
"autoindex": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"autoindex_exact_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"autoindex_format": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"autoindex_localtime": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"break": {
ngxHTTPSrvConf | ngxHTTPSifConf | ngxHTTPLocConf | ngxHTTPLifConf | ngxConfNoArgs,
},
"charset": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxHTTPLifConf | ngxConfTake1,
},
"charset_map": {
ngxHTTPMainConf | ngxConfBlock | ngxConfTake2,
},
"charset_types": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"chunked_transfer_encoding": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"client_body_buffer_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"client_body_in_file_only": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"client_body_in_single_buffer": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"client_body_temp_path": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1234,
},
"client_body_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"client_header_buffer_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfTake1,
},
"client_header_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfTake1,
},
"client_max_body_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"connection_pool_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfTake1,
},
"create_full_put_path": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"daemon": {
ngxMainConf | ngxDirectConf | ngxConfFlag,
},
"dav_access": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake123,
},
"dav_methods": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"debug_connection": {
ngxEventConf | ngxConfTake1,
},
"debug_points": {
ngxMainConf | ngxDirectConf | ngxConfTake1,
},
"default_type": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"deny": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxHTTPLmtConf | ngxConfTake1,
ngxStreamMainConf | ngxStreamSrvConf | ngxConfTake1,
},
"directio": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"directio_alignment": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"disable_symlinks": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake12,
},
"empty_gif": {
ngxHTTPLocConf | ngxConfNoArgs,
},
"env": {
ngxMainConf | ngxDirectConf | ngxConfTake1,
},
"error_log": {
ngxMainConf | ngxConf1More,
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
ngxMailMainConf | ngxMailSrvConf | ngxConf1More,
ngxStreamMainConf | ngxStreamSrvConf | ngxConf1More,
},
"error_page": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxHTTPLifConf | ngxConf2More,
},
"etag": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"events": {
ngxMainConf | ngxConfBlock | ngxConfNoArgs,
},
"expires": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxHTTPLifConf | ngxConfTake12,
},
"fastcgi_bind": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake12,
},
"fastcgi_buffer_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_buffering": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"fastcgi_buffers": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake2,
},
"fastcgi_busy_buffers_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_cache": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_cache_background_update": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"fastcgi_cache_bypass": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"fastcgi_cache_key": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_cache_lock": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"fastcgi_cache_lock_age": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_cache_lock_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_cache_max_range_offset": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_cache_methods": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"fastcgi_cache_min_uses": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_cache_path": {
ngxHTTPMainConf | ngxConf2More,
},
"fastcgi_cache_revalidate": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"fastcgi_cache_use_stale": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"fastcgi_cache_valid": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"fastcgi_catch_stderr": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_connect_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_force_ranges": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"fastcgi_hide_header": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_ignore_client_abort": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"fastcgi_ignore_headers": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"fastcgi_index": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_intercept_errors": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"fastcgi_keep_conn": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"fastcgi_limit_rate": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_max_temp_file_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_next_upstream": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"fastcgi_next_upstream_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_next_upstream_tries": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_no_cache": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"fastcgi_param": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake23,
},
"fastcgi_pass": {
ngxHTTPLocConf | ngxHTTPLifConf | ngxConfTake1,
},
"fastcgi_pass_header": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_pass_request_body": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"fastcgi_pass_request_headers": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"fastcgi_read_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_request_buffering": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"fastcgi_send_lowat": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_send_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_socket_keepalive": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"fastcgi_split_path_info": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_store": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_store_access": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake123,
},
"fastcgi_temp_file_write_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"fastcgi_temp_path": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1234,
},
"flv": {
ngxHTTPLocConf | ngxConfNoArgs,
},
"geo": {
ngxHTTPMainConf | ngxConfBlock | ngxConfTake12,
ngxStreamMainConf | ngxConfBlock | ngxConfTake12,
},
"geoip2": {
ngxHTTPMainConf | ngxConfBlock | ngxConfTake1,
ngxStreamMainConf | ngxConfBlock | ngxConfTake1,
},
"geoip_city": {
ngxHTTPMainConf | ngxConfTake12,
ngxStreamMainConf | ngxConfTake12,
},
"geoip_country": {
ngxHTTPMainConf | ngxConfTake12,
ngxStreamMainConf | ngxConfTake12,
},
"geoip_org": {
ngxHTTPMainConf | ngxConfTake12,
ngxStreamMainConf | ngxConfTake12,
},
"geoip_proxy": {
ngxHTTPMainConf | ngxConfTake1,
},
"geoip_proxy_recursive": {
ngxHTTPMainConf | ngxConfFlag,
},
"google_perftools_profiles": {
ngxMainConf | ngxDirectConf | ngxConfTake1,
},
"grpc_bind": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake12,
},
"grpc_buffer_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"grpc_connect_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"grpc_hide_header": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"grpc_ignore_headers": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"grpc_intercept_errors": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"grpc_next_upstream": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"grpc_next_upstream_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"grpc_next_upstream_tries": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"grpc_pass": {
ngxHTTPLocConf | ngxHTTPLifConf | ngxConfTake1,
},
"grpc_pass_header": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"grpc_read_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"grpc_send_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"grpc_set_header": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake2,
},
"grpc_socket_keepalive": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"grpc_ssl_certificate": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"grpc_ssl_certificate_key": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"grpc_ssl_ciphers": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"grpc_ssl_conf_command": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake2,
},
"grpc_ssl_crl": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"grpc_ssl_name": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"grpc_ssl_password_file": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"grpc_ssl_protocols": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"grpc_ssl_server_name": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"grpc_ssl_session_reuse": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"grpc_ssl_trusted_certificate": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"grpc_ssl_verify": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"grpc_ssl_verify_depth": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"gunzip": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"gunzip_buffers": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake2,
},
"gzip": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxHTTPLifConf | ngxConfFlag,
},
"gzip_buffers": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake2,
},
"gzip_comp_level": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"gzip_disable": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"gzip_http_version": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"gzip_min_length": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"gzip_proxied": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"gzip_static": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"gzip_types": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"gzip_vary": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"hash": {
ngxHTTPUpsConf | ngxConfTake12,
ngxStreamUpsConf | ngxConfTake12,
},
"http": {
ngxMainConf | ngxConfBlock | ngxConfNoArgs,
},
"http2": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfFlag,
},
"http2_body_preread_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfTake1,
},
"http2_chunk_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"http2_idle_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfTake1,
},
"http2_max_concurrent_pushes": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfTake1,
},
"http2_max_concurrent_streams": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfTake1,
},
"http2_max_field_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfTake1,
},
"http2_max_header_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfTake1,
},
"http2_max_requests": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfTake1,
},
"http2_push": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"http2_push_preload": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"http2_recv_buffer_size": {
ngxHTTPMainConf | ngxConfTake1,
},
"http2_recv_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfTake1,
},
"http3": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfFlag,
},
"http3_hq": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfFlag,
},
"http3_max_concurrent_streams": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfTake1,
},
"http3_stream_buffer_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfTake1,
},
"if": {
ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfBlock | ngxConfExpr | ngxConf1More,
},
"if_modified_since": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"ignore_invalid_headers": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfFlag,
},
"image_filter": {
ngxHTTPLocConf | ngxConfTake123,
},
"image_filter_buffer": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"image_filter_interlace": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"image_filter_jpeg_quality": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"image_filter_sharpen": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"image_filter_transparency": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"image_filter_webp_quality": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"imap_auth": {
ngxMailMainConf | ngxMailSrvConf | ngxConf1More,
},
"imap_capabilities": {
ngxMailMainConf | ngxMailSrvConf | ngxConf1More,
},
"imap_client_buffer": {
ngxMailMainConf | ngxMailSrvConf | ngxConfTake1,
},
"include": {
ngxAnyConf | ngxConfTake1,
},
"index": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"internal": {
ngxHTTPLocConf | ngxConfNoArgs,
},
"internal_redirect": {
ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"ip_hash": {
ngxHTTPUpsConf | ngxConfNoArgs,
},
"keepalive": {
ngxHTTPUpsConf | ngxConfTake1,
},
"keepalive_disable": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake12,
},
"keepalive_requests": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
ngxHTTPUpsConf | ngxConfTake1,
},
"keepalive_time": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
ngxHTTPUpsConf | ngxConfTake1,
},
"keepalive_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake12,
ngxHTTPUpsConf | ngxConfTake1,
},
"large_client_header_buffers": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfTake2,
},
"least_conn": {
ngxHTTPUpsConf | ngxConfNoArgs,
ngxStreamUpsConf | ngxConfNoArgs,
},
"limit_conn": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake2,
ngxStreamMainConf | ngxStreamSrvConf | ngxConfTake2,
},
"limit_conn_dry_run": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
ngxStreamMainConf | ngxStreamSrvConf | ngxConfTake1,
},
"limit_conn_log_level": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
ngxStreamMainConf | ngxStreamSrvConf | ngxConfTake1,
},
"limit_conn_status": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"limit_conn_zone": {
ngxHTTPMainConf | ngxConfTake2,
ngxStreamMainConf | ngxConfTake2,
},
"limit_except": {
ngxHTTPLocConf | ngxConfBlock | ngxConf1More,
},
"limit_rate": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxHTTPLifConf | ngxConfTake1,
},
"limit_rate_after": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxHTTPLifConf | ngxConfTake1,
},
"limit_req": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake123,
},
"limit_req_dry_run": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"limit_req_log_level": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"limit_req_status": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"limit_req_zone": {
ngxHTTPMainConf | ngxConfTake34,
},
"lingering_close": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"lingering_time": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"lingering_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"listen": {
ngxHTTPSrvConf | ngxConf1More,
ngxMailSrvConf | ngxConf1More,
ngxStreamSrvConf | ngxConf1More,
},
"load_module": {
ngxMainConf | ngxDirectConf | ngxConfTake1,
},
"location": {
ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfBlock | ngxConfTake12,
},
"lock_file": {
ngxMainConf | ngxDirectConf | ngxConfTake1,
},
"log_format": {
ngxHTTPMainConf | ngxConf2More,
ngxStreamMainConf | ngxConf2More,
},
"log_not_found": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"log_subrequest": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"mail": {
ngxMainConf | ngxConfBlock | ngxConfNoArgs,
},
"map": {
ngxHTTPMainConf | ngxConfBlock | ngxConfTake2,
ngxStreamMainConf | ngxConfBlock | ngxConfTake2,
},
"map_hash_bucket_size": {
ngxHTTPMainConf | ngxConfTake1,
ngxStreamMainConf | ngxConfTake1,
},
"map_hash_max_size": {
ngxHTTPMainConf | ngxConfTake1,
ngxStreamMainConf | ngxConfTake1,
},
"master_process": {
ngxMainConf | ngxDirectConf | ngxConfFlag,
},
"max_ranges": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"memcached_bind": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake12,
},
"memcached_buffer_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"memcached_connect_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"memcached_gzip_flag": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"memcached_next_upstream": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConf1More,
},
"memcached_next_upStreamtimeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"memcached_next_upStreamtries": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"memcached_pass": {
ngxHTTPLocConf | ngxHTTPLifConf | ngxConfTake1,
},
"memcached_read_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"memcached_send_timeout": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"memcached_socket_keepalive": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"merge_slashes": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxConfFlag,
},
"min_delete_depth": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"mirror": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"mirror_request_body": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"modern_browser": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake12,
},
"modern_browser_value": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"mp4": {
ngxHTTPLocConf | ngxConfNoArgs,
},
"mp4_buffer_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"mp4_max_buffer_size": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake1,
},
"msie_padding": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"msie_refresh": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfFlag,
},
"multi_accept": {
ngxEventConf | ngxConfFlag,
},
"open_file_cache": {
ngxHTTPMainConf | ngxHTTPSrvConf | ngxHTTPLocConf | ngxConfTake12,
},
"open_file_cache_errors": {