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完成cache参数解析部分的编码。

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This commit is contained in:
zhengchao
2018-11-07 21:05:21 +08:00
parent 0fd3b3880e
commit 67c60bed9d
2 changed files with 112 additions and 474 deletions
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568
plugin/business/pangu-http/src/pangu_web_cache.cpp
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@@ -9,19 +9,11 @@
#include <MESA/MESA_prof_load.h>
#include <MESA/field_stat2.h>
#include <Maat_rule.h>
#include <event2/event.h>
#include <event2/buffer.h>
extern "C"
{
#include <dablooms.h>
}
#include <cjson/cJSON.h>
#include <pthread.h>
enum cache_stat_field
{
STAT_CACHE_QUERY,
@@ -37,7 +29,6 @@ enum cache_stat_field
STAT_CACHE_QUERYING,
STAT_CACHE_PENDING,
STAT_CACHE_UPLOAD_CNT,
STAT_CACHE_UPLOAD_BYPASS,
STAT_CACHE_UPLOAD_OVERRIDE,
STAT_CACHE_UPLOAD_FORBIDEN,
STAT_CACHE_UPLOAD_ABANDON,
@@ -53,41 +44,6 @@ enum cache_stat_field
STAT_CACHE_OVERRIDE_UPLOAD_OBJ_SIZE,
__CACHE_STAT_MAX
};
struct cache_key_descr
{
int is_not_empty;
size_t qs_num;
char** ignore_qs;
char* include_cookie;
};
struct cache_param
{
int ref_cnt;
struct cache_key_descr key_descr;
char no_revalidate;
char cache_dyn_url;
char cache_cookied_cont;
char ignore_req_nocache;
char ignore_res_nocache;
char force_caching;
int min_use;
time_t pinning_time_sec;
time_t inactive_time_sec;
long max_cache_size;
long max_cache_obj_size;
pthread_mutex_t lock;
};
struct cache_bloom
{
int thread_id;
size_t size;
double error_rate;
char filename[TFE_PATH_MAX];
counting_bloom_t *bloom;
};
struct cache_handle
{
unsigned int thread_count;
@@ -106,17 +62,11 @@ struct cache_handle
struct event_base* gc_evbase;
struct event* gcev;
int cache_policy_enabled; //otherwise use default cache policy
struct cache_param default_cache_policy;
Maat_feather_t ref_feather;
int cache_param_idx;
int table_url_constraint;
int table_cookie_constraint;
int cache_key_bloom_life;
size_t cache_key_bloom_size;
struct cache_bloom *cache_key_bloom;
void* logger;
};
struct cache_update_context
@@ -124,7 +74,7 @@ struct cache_update_context
struct cache_handle* ref_cache_handle;
struct tango_cache_ctx * write_ctx;
};
static void web_cache_stat_cb(evutil_socket_t fd, short what, void * arg)
static void cache_gc_cb(evutil_socket_t fd, short what, void * arg)
{
struct cache_handle* cache=(struct cache_handle *)arg;
struct cache_statistics client_stat_sum, client_stat;
@@ -219,7 +169,6 @@ void cache_stat_init(struct cache_handle* cache)
set_stat_spec(&spec[STAT_CACHE_QUERYING], "getting",FS_STYLE_STATUS, FS_CALC_CURRENT);
set_stat_spec(&spec[STAT_CACHE_PENDING], "pending",FS_STYLE_STATUS, FS_CALC_CURRENT);
set_stat_spec(&spec[STAT_CACHE_UPLOAD_CNT], "cache_put",FS_STYLE_FIELD, FS_CALC_CURRENT);
set_stat_spec(&spec[STAT_CACHE_UPLOAD_BYPASS], "cache_bypass",FS_STYLE_FIELD, FS_CALC_CURRENT);
set_stat_spec(&spec[STAT_CACHE_UPLOAD_OVERRIDE], "or_put",FS_STYLE_FIELD, FS_CALC_CURRENT);
set_stat_spec(&spec[STAT_CACHE_UPLOAD_FORBIDEN], "put_forbid",FS_STYLE_FIELD, FS_CALC_CURRENT);
set_stat_spec(&spec[STAT_CACHE_UPLOAD_ABANDON], "put_abandon",FS_STYLE_FIELD, FS_CALC_CURRENT);
@@ -265,184 +214,44 @@ void cache_stat_init(struct cache_handle* cache)
FS_start(cache->fs_handle);
struct timeval gc_delay = {0, 500*1000}; //Microseconds, we set 500 miliseconds here.
cache->gcev = event_new(cache->gc_evbase, -1, EV_PERSIST, web_cache_stat_cb, cache);
cache->gcev = event_new(cache->gc_evbase, -1, EV_PERSIST, cache_gc_cb, cache);
evtimer_add(cache->gcev, &gc_delay);
return;
}
time_t time_unit_sec(const char* str)
struct cache_key_descr
{
time_t value=0;
sscanf(str, "%ld", &value);
switch(str[strlen(str)-1])
{
case 's':
break;
case 'm':
value*=60;
break;
case 'h':
value*=3600;
break;
case 'd':
value*=((size_t)24*3600);
break;
default:
break;
}
return value;
}
size_t storage_unit_byte(const char* str)
size_t qs_num;
char** ignore_qs;
char* include_hdrs;
char* include_cookie;
};
struct cache_param
{
size_t value=0;
sscanf(str, "%ld", &value);
switch(str[strlen(str)-1])
{
case 'b':
break;
case 'k':
value*=1024;
break;
case 'm':
value*=((size_t)1024*1024);
break;
case 'g':
value*=((size_t)1024*1024*1024);
break;
case 't':
if(value<1024)
{
#pragma GCC diagnostic ignored "-Woverflow"
value*=((size_t)1024*1024*1024*1024);
struct cache_key_descr key_descr;
}
else //maximum 1PB
{
value=(size_t)1024*(1024*1024*1024*1024);
}
break;
default:
break;
}
return value;
}
char revalidate;
char cache_dyn_url;
char cache_cookied_cont;
char ignore_req_nocache;
char ignore_res_nocache;
char force_caching;
int min_use;
int pinning_time_sec;
int inactive_time_sec;
int max_cache_size_mb;
int max_cache_obj_size_mb;
};
//A URL is considered dynamic if it ends in “.asp(x)” or contains a question mark (?), a semicolon (;), or “cgi”.
char is_dynamic_url(const char* url)
{
if(strchr(url, '?')
|| strchr(url, ';')
|| strstr(url, "cgi")
|| 0==strcmp(url+strlen(url)-3,"asp")
|| 0==strcmp(url+strlen(url)-4, "aspx"))
{
return 1;
}
return 0;
}
char * cookie_scanvalue(const char * key, const char * qs, char * val, size_t val_len)
{
int i=0, key_len=0;
key_len = strlen(key);
while(qs[0] != '\0')
{
if ( strncmp(key, qs, key_len) == 0 )
break;
qs += strcspn(qs, ";") + 1;
}
if ( qs[0] == '\0' ) return NULL;
qs += strcspn(qs, "=;");
if ( qs[0] == '=' )
{
qs++;
i = strcspn(qs, "=;");
strncpy(val, qs, (val_len-1)<(i+1) ? (val_len-1) : (i+1));
}
else
{
if ( val_len > 0 )
val[0] = '\0';
}
return val;
}
char* get_cache_key(const struct tfe_http_half * request, const struct cache_key_descr* desc)
{
if(desc==NULL|| !desc->is_not_empty)
{
return NULL;
}
int i=0, shall_ignore=0;
char *token=NULL,*sub_token=NULL,*saveptr;
char* url=tfe_strdup(request->req_spec.url);
const char* cookie=NULL;
char cookie_val[256]={0}; //most 256 bytes for cookie key
size_t key_size=strlen(url)+sizeof(cookie_val);
char* cache_key=ALLOC(char, key_size);
char* query_string=NULL;
if(desc->qs_num>0)
{
query_string=strchr(url, '?');
if(query_string!=NULL)
{
strncat(cache_key, url, MIN(query_string-url,key_size));
query_string++;
for (token = query_string; ; token= NULL)
{
sub_token= strtok_r(token,"&", &saveptr);
if (sub_token == NULL)
break;
shall_ignore=0;
for(i=0; i<desc->qs_num; i++)
{
if(0==strncasecmp(sub_token, desc->ignore_qs[i], strlen(desc->ignore_qs[i])))
{
shall_ignore=1;
break;
}
}
if(!shall_ignore)
{
strncat(cache_key, sub_token, key_size);
}
}
}
else
{
strncat(cache_key, url, key_size);
}
}
else
{
strncat(cache_key, url, key_size);
}
if(desc->include_cookie && (cookie=tfe_http_std_field_read(request, TFE_HTTP_COOKIE))!=NULL)
{
cookie_scanvalue(desc->include_cookie, cookie, cookie_val, sizeof(cookie_val));
if(strlen(cookie_val)>0)
{
strncat(cache_key, cookie_val, key_size);
}
}
FREE(&(url));
return cache_key;
}
int time_secs_interval(const char* str){}
int storage_mb_size(const char* str){}
int is_dynamic_url(const char* url){}
void cache_param_new(int idx, const struct Maat_rule_t* rule, const char* srv_def_large,
MAAT_RULE_EX_DATA* ad, long argl, void *argp)
{
struct cache_handle* cache=(struct cache_handle*) argp;
int i=0;
size_t len=0;
*ad=NULL;
if(rule->serv_def_len<strlen("{}")+1)
{
@@ -456,37 +265,31 @@ void cache_param_new(int idx, const struct Maat_rule_t* rule, const char* srv_de
return;
}
struct cache_param* param=ALLOC(struct cache_param, 1);
*param=cache->default_cache_policy;
param->ref_cnt=1;
pthread_mutex_init(&(param->lock), NULL);
key_desc=cJSON_GetObjectItem(json,"cache_key");
if(key_desc && key_desc->type==cJSON_Object)
{
param->key_descr.is_not_empty=1;
qs=cJSON_GetObjectItem(key_desc,"ignore_qs");
qs=cJSON_GetObjectItem(json,"ignore_qs");
if(qs && qs->type==cJSON_Array)
{
param->key_descr.qs_num=cJSON_GetArraySize(qs);
param->key_descr.ignore_qs=ALLOC(char*, param->key_descr.qs_num);
for(i=0; i<param->key_descr.qs_num; i++)
{
item=cJSON_GetArrayItem(qs, i);
len=strlen(item->valuestring)+2;
param->key_descr.ignore_qs[i]=ALLOC(char, len);
strncat(param->key_descr.ignore_qs[i], item->valuestring, len);
strncat(param->key_descr.ignore_qs[i], "=", len);
item=cJSON_GetArrayItem(item, i);
param->key_descr.ignore_qs[i]=tfe_strdup(qs->valuestring);
}
}
item=cJSON_GetObjectItem(key_desc,"cookie");
if(item && item->type==cJSON_String) param->key_descr.include_cookie=tfe_strdup(param->key_descr.include_cookie);
}
item=cJSON_GetObjectItem(key_desc,"hdrs");
if(item && item->type==cJSON_String) param->key_descr.include_hdrs=tfe_strdup(item->valuestring);
item=cJSON_GetObjectItem(key_desc,"cookie");
if(item && item->type==cJSON_String) param->key_descr.include_cookie=tfe_strdup(item->valuestring);
item=cJSON_GetObjectItem(json,"no_revalidate");
if(item && item->type==cJSON_Number) param->no_revalidate=item->valueint;
item=cJSON_GetObjectItem(json,"revalidate");
if(item && item->type==cJSON_Number) param->revalidate=item->valueint;
item=cJSON_GetObjectItem(json,"cache_dyn_url");
if(item && item->type==cJSON_Number) param->cache_dyn_url=item->valueint;
@@ -507,19 +310,18 @@ void cache_param_new(int idx, const struct Maat_rule_t* rule, const char* srv_de
if(item && item->type==cJSON_Number) param->min_use=item->valueint;
item=cJSON_GetObjectItem(json,"pinning_time");
if(item && item->type==cJSON_String) param->pinning_time_sec=time_unit_sec(item->valuestring);
if(item && item->type==cJSON_String) param->pinning_time_sec=time_secs_interval(item->valuestring);
item=cJSON_GetObjectItem(json,"inactive_time");
if(item && item->type==cJSON_String) param->inactive_time_sec=time_unit_sec(item->valuestring);
if(item && item->type==cJSON_String) param->inactive_time_sec=time_secs_interval(item->valuestring);
item=cJSON_GetObjectItem(json,"max_cache_size");
if(item && item->type==cJSON_String) param->max_cache_size=storage_unit_byte(item->valuestring);
if(item && item->type==cJSON_String) param->max_cache_size_mb=storage_mb_size(item->valuestring);
item=cJSON_GetObjectItem(json,"max_cache_obj_size");
if(item && item->type==cJSON_String) param->max_cache_obj_size=storage_unit_byte(item->valuestring);
if(item && item->type==cJSON_String) param->max_cache_obj_size_mb=storage_mb_size(item->valuestring);
cJSON_Delete(json);
*ad=param;
return;
}
void cache_param_free(int idx, const struct Maat_rule_t* rule, const char* srv_def_large, MAAT_RULE_EX_DATA* ad, long argl, void *argp)
@@ -530,85 +332,28 @@ void cache_param_free(int idx, const struct Maat_rule_t* rule, const char* srv_d
return;
}
struct cache_param* param=(struct cache_param*)*ad;
pthread_mutex_lock(&(param->lock));
param->ref_cnt--;
if(param->ref_cnt>0)
{
pthread_mutex_unlock(&(param->lock));
return;
}
pthread_mutex_unlock(&(param->lock));
pthread_mutex_destroy(&(param->lock));
for(i=0; i<param->key_descr.qs_num; i++)
{
FREE(&(param->key_descr.ignore_qs[i]));
}
FREE(&(param->key_descr.ignore_qs));
FREE(&(param->key_descr.include_cookie));
FREE(&(param->key_descr.include_hdrs));
FREE(&(param));
return;
}
void cache_param_dup(int idx, MAAT_RULE_EX_DATA *to, MAAT_RULE_EX_DATA *from, long argl, void *argp)
{
struct cache_param* from_param=*((struct cache_param**)from);
pthread_mutex_lock(&(from_param->lock));
from_param->ref_cnt++;
pthread_mutex_unlock(&(from_param->lock));
*((struct cache_param**)to)=from_param;
return;
}
static void cache_key_bloom_gc_cb(evutil_socket_t fd, short what, void * arg)
{
struct cache_bloom* p_bloom= (struct cache_bloom*) arg;
counting_bloom_t* new_bloom=NULL;
new_bloom=new_counting_bloom(p_bloom->size, p_bloom->error_rate, p_bloom->filename);
free_counting_bloom(p_bloom->bloom);
p_bloom->bloom=new_bloom;
return;
}
struct cache_handle* create_web_cache_handle(const char* profile_path, const char* section,
struct event_base* gc_evbase, Maat_feather_t feather, void *logger)
{
struct cache_handle* cache=ALLOC(struct cache_handle, 1);
int temp=0;
struct event* ev=NULL;
cache->logger=logger;
cache->thread_count=tfe_proxy_get_work_thread_count();
cache->clients=ALLOC(struct tango_cache_instance *, cache->thread_count);
cache->cache_key_bloom=ALLOC(struct cache_bloom, cache->thread_count);
struct cache_bloom* p_bloom=NULL;
MESA_load_profile_int_def(profile_path, section, "cache_policy_enabled",
&(cache->cache_policy_enabled), 1);
MESA_load_profile_int_def(profile_path, section, "cache_key_bloom_size",
(int*)&(cache->cache_key_bloom_size), 16*1000*1000);
MESA_load_profile_int_def(profile_path, section, "cache_key_bloom_life",
&(cache->cache_key_bloom_life), 30*60);
char bloom_filename[TFE_PATH_MAX]{0};
struct timeval gc_refresh_delay = {cache->cache_key_bloom_life, 0};
int i=0;
for(i=0; i<cache->thread_count; i++)
{
if(cache->cache_policy_enabled)
{
p_bloom=cache->cache_key_bloom+i;
p_bloom->thread_id=i;
p_bloom->size=cache->cache_key_bloom_size;
p_bloom->error_rate=0.01;
snprintf(p_bloom->filename, sizeof(p_bloom->filename), "/tmp/pangu_cache_blooms.%d", i);
p_bloom->bloom=new_counting_bloom(p_bloom->size, p_bloom->error_rate, p_bloom->filename);
if(p_bloom->bloom==NULL)
{
goto error_out;
}
ev = event_new(tfe_proxy_get_work_thread_evbase(i), -1, EV_PERSIST, cache_key_bloom_gc_cb, p_bloom);
evtimer_add(ev, &gc_refresh_delay);
}
cache->clients[i]=tango_cache_instance_new(tfe_proxy_get_work_thread_evbase(i), profile_path, section, logger);
if(cache->clients[i]==NULL)
{
@@ -624,32 +369,29 @@ struct cache_handle* create_web_cache_handle(const char* profile_path, const cha
MESA_load_profile_int_def(profile_path, section, "cache_undefined_obj", &(cache->cache_undefined_obj_enabled), 1);
MESA_load_profile_int_def(profile_path, section, "cached_undefined_obj_minimum_size", &(temp), 100*1024);
cache->cache_undefined_obj_min_size=temp;
MESA_load_profile_int_def(profile_path, section, "cache_minimum_time_override", &(cache->minimum_cache_seconds), 60*5);
cache->gc_evbase=gc_evbase;
cache->default_cache_policy.key_descr.qs_num=0;
cache->default_cache_policy.no_revalidate=0;
cache->default_cache_policy.revalidate=1;
cache->default_cache_policy.cache_dyn_url=0;
cache->default_cache_policy.cache_cookied_cont=0;
cache->default_cache_policy.ignore_req_nocache=0;
cache->default_cache_policy.ignore_res_nocache=0;
cache->default_cache_policy.force_caching=0;
cache->default_cache_policy.min_use=0;
cache->default_cache_policy.min_use=1;
cache->default_cache_policy.pinning_time_sec=0;
cache->default_cache_policy.inactive_time_sec=0;
cache->default_cache_policy.max_cache_size=0;
cache->default_cache_policy.max_cache_obj_size=1024*1024*1024;//<1GB by default
cache->default_cache_policy.max_cache_size_mb=0;
cache->default_cache_policy.max_cache_obj_size_mb=1024;//<1GB by default
if(cache->cache_policy_enabled)
{
cache->table_url_constraint=Maat_table_register(feather, "PXY_CACHE_HTTP_URL");
cache->table_cookie_constraint=Maat_table_register(feather, "PXY_CACHE_HTTP_COOKIE");
cache->table_url_constraint=Maat_table_register(feather, "PXY_CACHE_HTTP_URL");
cache->table_cookie_constraint=Maat_table_register(feather, "PXY_CACHE_HTTP_COOKIE");
cache->cache_param_idx=Maat_rule_get_ex_new_index(feather, "PXY_CACHE_COMPILE",
cache_param_new, cache_param_free, 0, cache);
cache->cache_param_idx=Maat_rule_get_ex_new_index(feather, "PXY_CACHE_COMPILE",
cache_param_new, cache_param_free, cache_param_dup,
0, cache);
cache->ref_feather=feather;
}
cache_stat_init(cache);
return cache;
error_out:
@@ -803,6 +545,7 @@ struct cache_pending_context
{
enum cache_pending_result status;
int is_undefined_obj;
struct request_freshness req_fresshness;
char* req_if_none_match, *req_if_modified_since;
const struct tfe_http_half * request;
@@ -824,9 +567,6 @@ void cache_pending_ctx_free_cb(void* p)
{
future_destroy(ctx->f_tango_cache_fetch);
}
FREE(&(ctx->cached_obj_meta.etag));
FREE(&(ctx->cached_obj_meta.last_modified));
FREE(&(ctx->cached_obj_meta.content_type));
free(ctx);
return;
}
@@ -891,91 +631,50 @@ static void cache_query_meta_on_fail(enum e_future_error err, const char * what,
}
struct cache_mid
{
enum cache_pending_result result;
struct request_freshness req_fresshness;
char shall_bypass;
char is_using_exception_param;
char is_dyn_url;
char has_cookie;
char use_cnt;
int cfg_id;
char* cache_key;
struct cache_param* param;
};
void cache_mid_clear(struct cache_mid **mid)
{
if(*mid==NULL)
{
return;
}
if((*mid)->is_using_exception_param)
{
cache_param_free(0, NULL, NULL, (void**)&((*mid)->param), 0, NULL);
}
FREE(&((*mid)->cache_key));
FREE(mid);
return;
}
#define CACHE_ACTION_BYPASS 0x80
enum cache_pending_result web_cache_async_pending(struct cache_handle* handle, unsigned int thread_id,
const struct tfe_http_half * request, struct cache_mid** mid, struct future* f_revalidate)
{
struct request_freshness req_fresshness={0,0};
enum cache_pending_result result=PENDING_RESULT_FOBIDDEN;
int is_undefined_obj=0;
struct Maat_rule_t cache_policy;
struct cache_param* param=&(handle->default_cache_policy);
const struct cache_param* param=&(handle->default_cache_policy);
MAAT_RULE_EX_DATA ex_data=NULL;
scan_status_t scan_mid=NULL;
int ret=0;
const char* cookie=NULL;
struct cache_mid* _mid=ALLOC(struct cache_mid, 1);
*mid=_mid;
ret=Maat_full_scan_string(handle->ref_feather, handle->table_url_constraint, CHARSET_UTF8,
request->req_spec.url, strlen(request->req_spec.url),
&cache_policy, NULL, 1, &scan_mid, thread_id);
cookie=tfe_http_std_field_read(request, TFE_HTTP_COOKIE);
if(cookie)
if(cookie && ret<=0)
{
_mid->has_cookie=1;
}
_mid->is_dyn_url=is_dynamic_url(request->req_spec.url);
if(handle->cache_policy_enabled)
{
ret=Maat_full_scan_string(handle->ref_feather, handle->table_url_constraint, CHARSET_UTF8,
request->req_spec.url, strlen(request->req_spec.url),
ret=Maat_full_scan_string(handle->ref_feather, handle->table_cookie_constraint, CHARSET_UTF8,
cookie, strlen(cookie),
&cache_policy, NULL, 1, &scan_mid, thread_id);
}
Maat_clean_status(&scan_mid);
if(cookie && ret<=0)
if(ret>0)
{
ex_data=Maat_rule_get_ex_data(handle->ref_feather, &cache_policy, handle->cache_param_idx);
if(ex_data!=NULL)
{
ret=Maat_full_scan_string(handle->ref_feather, handle->table_cookie_constraint, CHARSET_UTF8,
cookie, strlen(cookie),
&cache_policy, NULL, 1, &scan_mid, thread_id);
}
Maat_clean_status(&scan_mid);
if(ret>0)
{
ex_data=Maat_rule_get_ex_data(handle->ref_feather, &cache_policy, handle->cache_param_idx);
if(ex_data!=NULL)
{
param=(struct cache_param*)ex_data;
_mid->is_using_exception_param=1;
_mid->param=param;
}
if(cache_policy.action==CACHE_ACTION_BYPASS)
{
_mid->shall_bypass=1;
}
_mid->cfg_id=cache_policy.config_id;
}
if(_mid->shall_bypass ||
(!param->cache_dyn_url && _mid->is_dyn_url && param->key_descr.qs_num==0) ||
(param->cache_cookied_cont && _mid->has_cookie) )
{
_mid->result=PENDING_RESULT_FOBIDDEN;
return _mid->result;
param=(const struct cache_param*)ex_data;
}
}
enum cache_pending_action get_action=tfe_cache_get_pending(request, &(_mid->req_fresshness));
if(param->cache_dyn_url==0 && is_dynamic_url(request->req_spec.url))
{
return FORBIDDEN;
}
if(param->cache_cookied_cont==0 && cookie!=NULL)
{
return FORBIDDEN;
}
enum cache_pending_action get_action=tfe_cache_get_pending(request, &(req_fresshness));
switch(get_action)
{
case UNDEFINED:
@@ -1006,68 +705,51 @@ enum cache_pending_result web_cache_async_pending(struct cache_handle* handle, u
result=PENDING_RESULT_ALLOWED;
break;
default:
if(param->no_revalidate)
{
result=PENDING_RESULT_ALLOWED;
}
else
{
result=PENDING_RESULT_REVALIDATE;
}
result=PENDING_RESULT_REVALIDATE;
break;
}
if(result!=PENDING_RESULT_REVALIDATE)
{
_mid->result=result;
return _mid->result;
return result;
}
struct tango_cache_meta_get meta;
memset(&meta, 0, sizeof(meta));
if(param->key_descr.is_not_empty)
{
_mid->cache_key=get_cache_key(request, &(param->key_descr));
meta.url = _mid->cache_key;
}
else
{
meta.url = request->req_spec.url;
}
meta.get = _mid->req_fresshness;
meta.url=request->req_spec.url;
meta.get=req_fresshness;
struct promise* p=future_to_promise(f_revalidate);
struct cache_pending_context* ctx=ALLOC(struct cache_pending_context, 1);
ctx->status=PENDING_RESULT_FOBIDDEN;
ctx->ref_handle=handle;
ctx->req_fresshness=req_fresshness;
ctx->url=tfe_strdup(request->req_spec.url);
ctx->req_if_modified_since=tfe_strdup(tfe_http_std_field_read(request, TFE_HTTP_IF_MODIFIED_SINCE));
ctx->req_if_none_match=tfe_strdup(tfe_http_std_field_read(request, TFE_HTTP_IF_NONE_MATCH));
promise_set_ctx(p, ctx, cache_pending_ctx_free_cb);
ATOMIC_INC(&(handle->stat_val[STAT_CACHE_PENDING]));
ctx->f_tango_cache_fetch=future_create("_cache_pend", cache_query_meta_on_succ, cache_query_meta_on_fail, p);
ret=tango_cache_head_object(handle->clients[thread_id], ctx->f_tango_cache_fetch, &meta);
int ret=tango_cache_head_object(handle->clients[thread_id], ctx->f_tango_cache_fetch, &meta);
if(ret<0)
{
cache_pending_ctx_free_cb(ctx);
_mid->result=PENDING_RESULT_FOBIDDEN;
return _mid->result;
return PENDING_RESULT_FOBIDDEN;
}
_mid->result=PENDING_RESULT_REVALIDATE;
return _mid->result;
assert(ret==0);
return PENDING_RESULT_REVALIDATE;
}
int web_cache_async_query(struct cache_handle* handle, unsigned int thread_id,
const struct tfe_http_half * request, struct cache_mid** mid, struct future* f)
const struct tfe_http_half * request, struct future* f)
{
struct request_freshness req_fresshness;
enum cache_pending_action get_action;
struct cache_query_context* query_ctx=NULL;
struct promise* p=NULL;
struct future* _f=NULL;
struct cache_mid* _mid=*mid;
assert(_mid->result!=PENDING_RESULT_FOBIDDEN);
get_action=tfe_cache_get_pending(request, &req_fresshness);
assert(get_action!=FORBIDDEN);
if(ATOMIC_READ(&(handle->stat_val[STAT_CACHE_QUERYING])) > ATOMIC_READ(&(handle->put_concurrency_max)))
{
@@ -1078,7 +760,6 @@ int web_cache_async_query(struct cache_handle* handle, unsigned int thread_id,
struct tango_cache_meta_get meta;
memset(&meta, 0, sizeof(meta));
meta.url=request->req_spec.url;
meta.get=_mid->req_fresshness;
memcpy(&(meta.get), &req_fresshness, sizeof(meta.get));
query_ctx=ALLOC(struct cache_query_context, 1);
query_ctx->ref_handle=handle;
@@ -1119,33 +800,22 @@ static void wrap_cache_update_on_succ(future_result_t * result, void * user)
static void wrap_cache_update_on_fail(enum e_future_error err, const char * what, void * user)
{
struct wrap_cache_put_ctx* ctx=(struct wrap_cache_put_ctx*)user;
TFE_LOG_DEBUG(ctx->ref_handle->logger, "cache upload failed: %s %s lapse: %d", ctx->url, what, time(NULL)-ctx->start);
TFE_LOG_DEBUG(ctx->ref_handle->logger, "cache upload failed: %s elapse: %d", ctx->url, time(NULL)-ctx->start);
wrap_cache_put_ctx_free(ctx);
}
struct cache_update_context* web_cache_update_start(struct cache_handle* handle, unsigned int thread_id,
const struct tfe_http_session * session, struct cache_mid **mid)
const struct tfe_http_session * session)
{
struct cache_update_context* update_ctx=NULL;
struct response_freshness resp_freshness;
enum cache_pending_action put_action;
struct tango_cache_ctx *write_ctx=NULL;
char cont_type_str[TFE_STRING_MAX]={0}, user_tag_str[TFE_STRING_MAX]={0};
char cont_len_str[TFE_STRING_MAX]={0}, user_tag_str[TFE_STRING_MAX]={0};
const char* value=NULL;
char *tmp=NULL;
int i=0, is_undefined_obj=0;
size_t content_len=0;
const struct cache_param* param=NULL;
struct cache_mid* _mid=*mid;
if(_mid!=NULL && _mid->is_using_exception_param)
{
param=_mid->param;
}
else
{
param=&(handle->default_cache_policy);
}
if(session->resp->resp_spec.content_length)
{
sscanf(session->resp->resp_spec.content_length, "%lu", &content_len);
@@ -1154,24 +824,19 @@ struct cache_update_context* web_cache_update_start(struct cache_handle* handle,
put_action=tfe_cache_put_pending(session->resp, &resp_freshness);
switch(put_action){
case FORBIDDEN:
if(!(param->ignore_res_nocache || param->force_caching))
ATOMIC_INC(&(handle->stat_val[STAT_CACHE_UPLOAD_FORBIDEN]));
TFE_LOG_DEBUG(handle->logger, "cache update forbiden: %s", session->req->req_spec.url);
return NULL;
case REVALIDATE:
case ALLOWED:
break;
case UNDEFINED:
if(handle->cache_undefined_obj_enabled && content_len<handle->cache_undefined_obj_min_size)
{
ATOMIC_INC(&(handle->stat_val[STAT_CACHE_UPLOAD_FORBIDEN]));
TFE_LOG_DEBUG(handle->logger, "cache update forbiden: %s", session->req->req_spec.url);
return NULL;
}
break;
case REVALIDATE:
case ALLOWED:
case UNDEFINED:
if(_mid->shall_bypass
|| content_len > param->max_cache_obj_size
|| (!param->cache_cookied_cont && _mid->has_cookie) )
{
ATOMIC_INC(&(handle->stat_val[STAT_CACHE_UPLOAD_BYPASS]));
TFE_LOG_DEBUG(handle->logger, "cache update bypass: %d : %s", _mid->cfg_id, session->req->req_spec.url);
return NULL;
}
is_undefined_obj=1;
break;
default:
assert(0);
@@ -1182,28 +847,6 @@ struct cache_update_context* web_cache_update_start(struct cache_handle* handle,
ATOMIC_INC(&(handle->stat_val[STAT_CACHE_UPLOAD_ABANDON]));
return NULL;
}
const char* key=NULL;
size_t key_len=0;
if(param->min_use>0)
{
if(_mid->cache_key)
{
key=_mid->cache_key;
key_len=strlen(_mid->cache_key);
}
else
{
key=session->req->req_spec.url;
key_len=strlen(session->req->req_spec.url);
}
_mid->use_cnt=counting_bloom_check(handle->cache_key_bloom[thread_id].bloom, key, key_len);
if(_mid->use_cnt<param->min_use)
{
counting_bloom_add(handle->cache_key_bloom[thread_id].bloom, key, key_len);
return NULL;
}
}
ATOMIC_INC(&(handle->stat_val[STAT_CACHE_UPLOADING]));
struct tango_cache_meta_put meta;
@@ -1211,8 +854,8 @@ struct cache_update_context* web_cache_update_start(struct cache_handle* handle,
meta.url=session->req->req_spec.url;
i=0;
snprintf(cont_type_str, sizeof(cont_type_str), "content-type:%s",session->resp->resp_spec.content_type);
meta.std_hdr[i]=cont_type_str;
snprintf(cont_len_str, sizeof(cont_len_str), "content-type:%s",session->resp->resp_spec.content_type);
meta.std_hdr[i]=cont_len_str;
i++;
const char* etag=tfe_http_std_field_read(session->resp, TFE_HTTP_ETAG);
const char* last_modified=tfe_http_std_field_read(session->resp, TFE_HTTP_LAST_MODIFIED);
@@ -1225,7 +868,6 @@ struct cache_update_context* web_cache_update_start(struct cache_handle* handle,
meta.usertag_len=strlen(user_tag_str)+1;
}
meta.put=resp_freshness;
meta.put.timeout=MAX(param->pinning_time_sec, resp_freshness.timeout);
struct wrap_cache_put_ctx* _cache_put_ctx=ALLOC(struct wrap_cache_put_ctx, 1);
_cache_put_ctx->url=tfe_strdup(session->req->req_spec.url);

12
plugin/business/pangu-http/src/pangu_web_cache.h
View File

@@ -2,7 +2,6 @@
#include <event2/event.h>
#include <event2/buffer.h>
#include <tfe_future.h>
#include <Maat_rule.h>
enum cache_query_status
{
@@ -14,9 +13,7 @@ enum cache_query_status
WEB_CACHE_HIT
};
struct cache_handle;
struct cache_handle* create_web_cache_handle(const char* profile_path, const char* section,
struct event_base* gc_evbase, Maat_feather_t feather, void *logger);
struct cache_handle* create_web_cache_handle(const char* profile_path, const char* section, struct event_base* gc_evbase, void *logger);
struct cached_meta
{
size_t content_length;
@@ -28,7 +25,7 @@ const struct cached_meta* cache_query_result_read_meta(future_result_t * result)
size_t cache_query_result_get_data(future_result_t * result, const unsigned char** pp_data);
int web_cache_async_query(struct cache_handle* handle, unsigned int thread_id,
const struct tfe_http_half * request, struct cache_mid** mid, struct future* f);
const struct tfe_http_half * request, struct future* f);
enum cache_query_result_type
@@ -54,9 +51,8 @@ struct cache_mid;
const struct cached_meta* cache_pending_result_read_meta(future_result_t * result);
enum cache_pending_result web_cache_async_pending(struct cache_handle* handle, unsigned int thread_id,
const struct tfe_http_half * request, struct cache_mid** mid, struct future* f_revalidate);
void cache_mid_clear(struct cache_mid **mid);
const struct tfe_http_half * request, struct cache_mid **mid, struct future* f_revalidate);
void cache_mid_free(struct cache_mid **mid);