diff --git a/http_server.c b/http_server.c index 57cf962..2da4dce 100644 --- a/http_server.c +++ b/http_server.c @@ -1,120 +1,121 @@ #include "http_server.h" static pthread_mutex_t server_mux = PTHREAD_MUTEX_INITIALIZER; -/**********************************************************************/ -/* A request has caused a call to accept() on the server port to -* return. Process the request appropriately. -* Parameters: the socket connected to the client */ -/**********************************************************************/ -void accept_request(void* client) -{ - char buf[1024]; - int numchars; - char method[255]; - char url[4096]; - char path[1024]; - char* token; - char *line; - char* oldurl = NULL; - char* tmp = NULL; - dictionary rq = NULL; - size_t i, j; - struct stat st; - //char *query_string = NULL; - //LOG("SOCK IS %d\n", ((antd_client_t*)client)->sock); - numchars = read_buf(client, buf, sizeof(buf)); - if(numchars <= 0) +void* accept_request(void* client) +{ + int count; + char buf[BUFFLEN]; + antd_request_t* request; + antd_task_t* task; + char* token = NULL; + char* line = NULL; + request = (antd_request_t*)malloc(sizeof(*request)); + request->client = client; + request->request = dict(); + count = read_buf(client, buf, sizeof(buf)); + task = antd_create_task(NULL,(void*)request,NULL); + task->priority++; + if(count <= 0) { unknow(client); - goto end; + return task; } - i = 0; j = 0; - while (j < numchars && !ISspace(buf[j]) && (i < sizeof(method) - 1)) + line = buf; + // get the method string + token = strsep(&line," "); + if(!line) { - method[i] = buf[j]; - i++; j++; + unknow(client); + return task; } - method[i] = '\0'; - if (strcasecmp(method, "GET") && strcasecmp(method, "POST")) + trim(token,' '); + trim(line,' '); + dput(request->request, "METHOD", strdup(token)); + // get the request + token = strsep(&line, " "); + if(!line) { - LOG("METHOD NOT FOUND %s\n", method); - // unimplemented - //while(get_line(client, buf, sizeof(buf)) > 0) printf("%s\n",buf ); - unimplemented(client); - //antd_close(client); - goto end; + unknow(client); + return task; } + trim(token,' '); + trim(line,' '); + trim(line, '\n'); + trim(line, '\r'); + dput(request->request, "PROTOCOL", strdup(line)); + dput(request->request, "REQUEST_QUERY", strdup(token)); + line = token; + token = strsep(&line, "?"); + dput(request->request, "REQUEST_PATH", strdup(token)); + // decode request + // now return the task + task->handle = decode_request_header; + return task; +} - - i = 0; - while (ISspace(buf[j]) && (j < sizeof(buf))) - j++; - while (!ISspace(buf[j]) && (i < sizeof(url) - 1) && (j < sizeof(buf))) - { - url[i] = buf[j]; - i++; j++; - } - url[i] = '\0'; - - - - oldurl = strdup(url); - tmp = strchr(oldurl,'?'); - if(tmp) - *tmp = '\0'; - - rq = decode_request(client, method, url); - if(rq == NULL) - { - badrequest(client); - goto end; - } +void* resolve_request(void* data) +{ + struct stat st; + char path[2*BUFFLEN]; + antd_request_t* rq = (antd_request_t*) data; + antd_task_t* task = antd_create_task(NULL,(void*)rq,NULL); + task->priority++; + char* url = (char*)dvalue(rq->request, "RESOURCE_PATH"); + char* newurl = NULL; + char* rqp = (char*)dvalue(rq->request, "REQUEST_PATH"); sprintf(path, server_config.htdocs); strcat(path, url); LOG("Path is : %s \n", path); //if (path[strlen(path) - 1] == '/') // strcat(path, "index.html"); if (stat(path, &st) == -1) { - if(execute_plugin(client,oldurl,method,rq) < 0) - not_found(client); + //if(execute_plugin(rq->client,rqp,method,rq) < 0) + // not_found(client); + LOG("execute plugin \n"); + free(task); + return execute_plugin(rq, rqp); } else { if (S_ISDIR(st.st_mode)) { - int l = strlen(path); - int ul = strlen(url); strcat(path, "/index.html"); if(stat(path, &st) == -1) { association it; for_each_assoc(it, server_config.handlers) { - path[l] = '\0'; - url[ul] = '\0'; - strcat(url,"/index."); - strcat(path, "/index."); - strcat(url,it->key); - strcat(path, it->key); - if(stat(path, &st) == 0) + newurl = __s("%s/index.%s", url, it->key); + memset(path, 0, sizeof(path)); + strcat(path, server_config.htdocs); + strcat(path, newurl); + if(stat(path, &st) != 0) + { + free(newurl); + newurl = NULL; + } + else { - l = -1; - i = HASHSIZE; break; } } - if(l!= -1) + if(!newurl) { - not_found(client); - goto end; + notfound(rq->client); + return task; } + if(url) free(url); + url = newurl; + dput(rq->request, "RESOURCE_PATH", url); } } + dput(rq->request, "ABS_RESOURCE_PATH", strdup(path)); // check if the mime is supported // if the mime is not supported // find an handler plugin to process it // if the plugin is not found, forbidden access to the file should be sent char* mime_type = mime(path); + dput(rq->request, "RESOURCE_MIME", strdup(mime_type)); if(strcmp(mime_type,"application/octet-stream") == 0) { char * ex = ext(path); @@ -122,48 +123,35 @@ void accept_request(void* client) if(ex) free(ex); if(h) { - sprintf(buf,"/%s%s",h,url); - LOG("WARNING::::Access octetstream via handler %s\n", buf); - if(execute_plugin(client,buf,method,rq) < 0) - cannot_execute(client); + sprintf(path,"/%s%s",h,url); + LOG("WARNING::::Access octetstream via handler %s\n", path); + //if(execute_plugin(client,buf,method,rq) < 0) + // cannot_execute(client); + free(task); + return execute_plugin(rq, path); } else - unknow(client); + unknow(rq->client); } else { - ctype(client,mime_type); - // if the mime is supported, send the file - serve_file(client, path); - //response(client,"this is the file"); - } + task->type = HEAVY; + task->handle = serve_file; + } + return task; } -end: - if(oldurl) free(oldurl); - if(rq) - { - dictionary subdict; - subdict = (dictionary)dvalue(rq, "__xheader__"); - if(subdict) - { - freedict(subdict); - dput(rq, "__xheader__", NULL); - } - - subdict = (dictionary)dvalue(rq, "cookie"); - if(subdict) - { - freedict(subdict); - dput(rq, "cookie", NULL); - } - freedict(rq); - } - antd_close(client); } void* finish_request(void* data) { + if(!data) return NULL; + LOG("Close request\n"); + antd_request_t* rq = (antd_request_t*)data; + // free all other thing + if(rq->request) freedict(rq->request); + antd_close(rq->client); + free(rq); return NULL; } @@ -237,51 +225,6 @@ int rule_check(const char*k, const char* v, const char* host, const char* _url, free(query); return 1; } -/**********************************************************************/ -/* Put the entire contents of a file out on a socket. This function -* is named after the UNIX "cat" command, because it might have been -* easier just to do something like pipe, fork, and exec("cat"). -* Parameters: the client socket descriptor -* FILE pointer for the file to cat */ -/**********************************************************************/ -void catb(void* client, FILE* ptr) -{ - unsigned char buffer[BUFFLEN]; - size_t size; - while(!feof(ptr)) - { - size = fread(buffer,1,BUFFLEN,ptr); - __b(client,buffer,size); - //if(!__b(client,buffer,size)) return; - } - //fclose(ptr); -} -void cat(void* client, FILE *resource) -{ - char buf[1024]; - //fgets(buf, sizeof(buf), resource); - while (fgets(buf, sizeof(buf), resource) != NULL) - { - antd_send(client, buf, strlen(buf)); - //fgets(buf, sizeof(buf), resource); - } - - -} - -/**********************************************************************/ -/* Inform the client that a CGI script could not be executed. -* Parameter: the client socket descriptor. */ -/**********************************************************************/ -void cannot_execute(void* client) -{ - set_status(client,500,"Internal Server Error"); - __t(client,SERVER_STRING); - __t(client,"Content-Type: text/html"); - response(client,""); - __t(client, "
Error prohibited CGI execution."); -} - /**********************************************************************/ /* Print out an error message with perror() (for system errors; based * on value of errno, which indicates system call errors) and exit the @@ -292,99 +235,20 @@ void error_die(const char *sc) perror(sc); exit(1); } - -/**********************************************************************/ -/* Get a line from a socket, whether the line ends in a newline, -* carriage return, or a CRLF combination. Terminates the string read -* with a null character. If no newline indicator is found before the -* end of the buffer, the string is terminated with a null. If any of -* the above three line terminators is read, the last character of the -* string will be a linefeed and the string will be terminated with a -* null character. -* Parameters: the socket descriptor -* the buffer to save the data in -* the size of the buffer -* Returns: the number of bytes stored (excluding null) */ -/**********************************************************************/ -//This function is deprecate -/*int get_line(int sock, char *buf, int size) +void* serve_file(void* data) { - int i = 0; - char c = '\0'; - int n; - - while ((i < size - 1) && (c != '\n')) - { - n = recv(sock, &c, 1, 0); - - if (n > 0) - { - if (c == '\r') - { - n = recv(sock, &c, 1, MSG_PEEK); - - if ((n > 0) && (c == '\n')) - recv(sock, &c, 1, 0); - else - c = '\n'; - } - buf[i] = c; - i++; - } - else - c = '\n'; - } - buf[i] = '\0'; - - return(i); -}*/ - - -/**********************************************************************/ -/* Give a client a 404 not found status message. */ -/**********************************************************************/ -void not_found(void* client) -{ - set_status(client,404,"NOT FOUND"); - __t(client,SERVER_STRING); - __t(client,"Content-Type: text/html"); - response(client,""); - __t(client, "
The server could not fulfill"); - __t(client, "your request because the resource specified"); - __t(client, "is unavailable or nonexistent."); - __t(client, ""); -} - -/**********************************************************************/ -/* Send a regular file to the client. Use headers, and report -* errors to client if they occur. -* Parameters: a pointer to a file structure produced from the socket -* file descriptor -* the name of the file to serve */ -/**********************************************************************/ -void serve_file(void* client, const char *filename) -{ - LOG("Serve file: %s\n", filename); - FILE *resource = NULL; - int numchars = 1; - //char buf[1024]; - - //buf[0] = 'A'; buf[1] = '\0'; - //while ((numchars > 0) && strcmp("\n", buf)) /* read & discard headers */ - // numchars = get_line(client, buf, sizeof(buf)); - - resource = fopen(filename, "rb"); - if (resource == NULL) - not_found(client); + antd_request_t* rq = (antd_request_t*) data; + antd_task_t* task = antd_create_task(NULL,(void*)rq,NULL); + task->priority++; + char* path = (char*)dvalue(rq->request, "ABS_RESOURCE_PATH"); + char* newurl = NULL; + char* mime_type = (char*)dvalue(rq->request, "RESOURCE_MIME"); + ctype(rq->client,mime_type); + if(is_bin(path)) + __fb(rq->client, path); else - { - if(is_bin(filename)) - catb(client,resource); - else - cat(client, resource); - } - fclose(resource); + __f(rq->client, path); + return task; } /**********************************************************************/ @@ -422,32 +286,6 @@ int startup(unsigned *port) return(httpd); } -/**********************************************************************/ -/* Inform the client that the requested web method has not been -* implemented. -* Parameter: the client socket */ -/**********************************************************************/ -void unimplemented(void* client) -{ - set_status(client,501,"Method Not Implemented"); - __t(client,SERVER_STRING); - __t(client,"Content-Type: text/html"); - response(client,""); - __t(client, "
HTTP request method not supported.");
- __t(client, "");
-}
-
-void badrequest(void* client)
-{
- set_status(client,400,"Bad Request");
- __t(client,SERVER_STRING);
- __t(client,"Content-Type: text/html");
- response(client,"");
- __t(client,"The request could not be understood by the server due to malformed syntax.");
-}
-
char* apply_rules(const char* host, char*url)
{
association it;
@@ -491,32 +329,30 @@ char* apply_rules(const char* host, char*url)
* - if it is a POST request with URL encoded : decode the url encode
* - if it is a POST request with multipart form data: de code the multipart
* - if other - UNIMPLEMENTED
- * @param client socket client
- * @param method HTTP method
- * @param query query string in case of GET
- * @return a dictionary of key- value
+ * @param an antd_request_t structure
+ * @return a task
*/
-dictionary decode_request(void* client,const char* method, char* url)
+
+void* decode_request_header(void* data)
{
- dictionary request = dict();
+ antd_request_t* rq = (antd_request_t*) data;
dictionary cookie = NULL;
- dictionary xheader = dict();
char* line;
char * token;
char* query = NULL;
- char* ctype = NULL;
char* host = NULL;
- int clen = -1;
-
+ char buf[2*BUFFLEN];
+ char* url = (char*)dvalue(rq->request, "REQUEST_QUERY");
+ dictionary xheader = dict();
+ dictionary request = dict();
+ dput(rq->request,"REQUEST_HEADER",xheader);
+ dput(rq->request,"REQUEST_DATA",request);
// first real all header
// this for check if web socket is enabled
- int ws= 0;
- char* ws_key = NULL;
- char buf[BUFFLEN];
// ip address
- dput(xheader,"REMOTE_ADDR", (void*)strdup(((antd_client_t*)client)->ip ));
+ dput(xheader,"REMOTE_ADDR", (void*)strdup(((antd_client_t*)rq->client)->ip ));
//while((line = read_line(client)) && strcmp("\r\n",line))
- while((read_buf(client,buf,sizeof(buf))) && strcmp("\r\n",buf))
+ while((read_buf(rq->client,buf,sizeof(buf))) && strcmp("\r\n",buf))
{
line = buf;
trim(line, '\n');
@@ -530,109 +366,125 @@ dictionary decode_request(void* client,const char* method, char* url)
{
if(!cookie) cookie = decode_cookie(line);
}
- else if(token != NULL &&strcasecmp(token,"Content-Type") == 0)
- {
- ctype = strdup(line); //strsep(&line,":");
- trim(ctype,' ');
- } else if(token != NULL &&strcasecmp(token,"Content-Length") == 0)
- {
- token = line; //strsep(&line,":");
- trim(token,' ');
- clen = atoi(token);
- }
- else if(token != NULL && strcasecmp(token,"Upgrade") == 0)
- {
- // verify that the connection is upgrade to websocket
- trim(line, ' ');
- if(line != NULL && strcasecmp(line,"websocket") == 0)
- ws = 1;
- }else if(token != NULL && strcasecmp(token,"Host") == 0)
+ else if(token != NULL && strcasecmp(token,"Host") == 0)
{
host = strdup(line);
}
- else if(token != NULL && strcasecmp(token,"Sec-WebSocket-Key") == 0)
- {
- // get the key from the client
- trim(line, ' ');
- ws_key = strdup(line);
- }
}
//if(line) free(line);
- query = apply_rules(host, url);
+ memset(buf, 0, sizeof(buf));
+ strcat(buf,url);
+ query = apply_rules(host, buf);
+ LOG("BUGFGGGG is %s\n", buf);
+ dput(rq->request,"RESOURCE_PATH",strdup(buf));
if(query)
{
LOG("Query: %s\n", query);
decode_url_request(query, request);
free(query);
}
+ if(cookie)
+ dput(request,"cookie",cookie);
if(host) free(host);
- if(strcmp(method,"GET") == 0)
+ // header ok, now checkmethod
+ antd_task_t* task = antd_create_task(decode_request,(void*)rq, NULL);
+ task->priority++;
+ return task;
+}
+
+void* decode_request(void* data)
+{
+ antd_request_t* rq = (antd_request_t*) data;
+ dictionary request = dvalue(rq->request, "REQUEST_DATA");
+ dictionary headers = dvalue(rq->request, "REQUEST_HEADER");
+ int ws = 0;
+ char*ws_key = NULL;
+ char* method = NULL;
+ char* tmp;
+ antd_task_t* task = NULL;
+ ws_key = (char*) dvalue(headers, "Sec-WebSocket-Key");
+ tmp = (char*)dvalue(headers, "Upgrade");
+ if(tmp && strcasecmp(tmp, "websocket") == 0) ws = 1;
+ method = (char*) dvalue(rq->request, "METHOD");
+ task = antd_create_task(NULL,(void*)rq, NULL);
+ task->priority++;
+ if(strcmp(method,"GET") == 0 || strcmp(method,"PUT") == 0)
{
//if(ctype) free(ctype);
if(ws && ws_key != NULL)
{
- ws_confirm_request(client, ws_key);
+ ws_confirm_request(rq->client, ws_key);
free(ws_key);
// insert wsocket flag to request
// plugin should handle this ugraded connection
// not the server
- //if(!request) request = dict();
dput(request,"__web_socket__",strdup("1"));
}
+ // resolve task
+ task->handle = resolve_request;
+ return task;
+ }
+ else if(strcmp(method,"POST") == 0)
+ {
+ task->handle = decode_post_request;
+ task->type = HEAVY;
+ return task;
}
else
{
- if(ws_key)
- free(ws_key);
- if(ctype == NULL || clen == -1)
- {
- LOG("Bad request\n");
- if(ctype) free(ctype);
- if(cookie) freedict(cookie);
- freedict(request);
- freedict(xheader);
- return NULL;
- }
- LOG("ContentType %s\n", ctype);
- // decide what to do with the data
- if(strstr(ctype,FORM_URL_ENCODE) > 0)
- {
- char* pquery = post_data_decode(client,clen);
- decode_url_request(pquery, request);
- free(pquery);
- } else if(strstr(ctype,FORM_MULTI_PART)> 0)
- {
- //printf("Multi part form : %s\n", ctype);
- decode_multi_part_request(client,ctype,request);
- }
- else
- {
- char* pquery = post_data_decode(client,clen);
- char* key = strstr(ctype,"/");
- if(key)
- key++;
- else
- key = ctype;
- dput(request,key, strdup(pquery));
- free(pquery);
- }
+ unimplemented(rq->client);
+ return task;
}
- if(ctype) free(ctype);
- //if(cookie->key == NULL) {free(cookie);cookie= NULL;}
- //if(!request)
- // request = dict();
- if(cookie)
- dput(request,"cookie",cookie);
- dput(request,"__xheader__",xheader);
- return request;
}
-void __px(const char* data,int size)
+
+void* decode_post_request(void* data)
{
- for (int i = 0; i < size; ++i)
- printf(" %02x", data[i]);
-
- printf("\n");
+ antd_request_t* rq = (antd_request_t*) data;
+ dictionary request = dvalue(rq->request, "REQUEST_DATA");
+ dictionary headers = dvalue(rq->request, "REQUEST_HEADER");
+ char* ctype = NULL;
+ int clen = -1;
+ char* tmp;
+ antd_task_t* task = NULL;
+ ctype = (char*) dvalue(headers, "Content-Type");
+ tmp = (char*)dvalue(headers, "Content-Length");
+ if(tmp)
+ clen = atoi(tmp);
+ task = antd_create_task(NULL,(void*)rq, NULL);
+ if(ctype == NULL || clen == -1)
+ {
+ LOG("Bad request\n");
+ badrequest(rq->client);
+ return task;
+ }
+ LOG("ContentType %s\n", ctype);
+ // decide what to do with the data
+ if(strstr(ctype,FORM_URL_ENCODE) > 0)
+ {
+ char* pquery = post_data_decode(rq->client,clen);
+ decode_url_request(pquery, request);
+ free(pquery);
+ } else if(strstr(ctype,FORM_MULTI_PART)> 0)
+ {
+ //printf("Multi part form : %s\n", ctype);
+ // TODO: split this to multiple task
+ decode_multi_part_request(rq->client,ctype,request);
+ }
+ else
+ {
+ char* pquery = post_data_decode(rq->client,clen);
+ char* key = strstr(ctype,"/");
+ if(key)
+ key++;
+ else
+ key = ctype;
+ dput(request,key, strdup(pquery));
+ free(pquery);
+ }
+ task->handle = resolve_request;
+ return task;
}
+
/**
* Send header to the client to confirm
* that the websocket is accepted by
@@ -944,11 +796,11 @@ char* post_data_decode(void* client,int len)
* @return -1 if failure
* 1 if sucess
*/
-int execute_plugin(void* client, const char *path, const char *method, dictionary dic)
+void* execute_plugin(void* data, const char *path)
{
char pname[255];
char pfunc[255];
- void (*fn)(void*, const char*,const char*, dictionary);
+ void* (*fn)(void*);
struct plugin_entry *plugin ;
int plen = strlen(path);
char * rpath = (char*) malloc((plen+1)*sizeof(char));
@@ -958,6 +810,9 @@ int execute_plugin(void* client, const char *path, const char *method, dictionar
rpath[plen] = '\0';
trim(rpath,'/');
char * delim = strchr(rpath,'/');
+ antd_request_t* rq = (antd_request_t*) data;
+ antd_task_t* task = antd_create_task(NULL, (void*)rq, NULL);
+ task->priority++;
if(delim == NULL)
{
strcpy(pname,rpath);
@@ -973,9 +828,8 @@ int execute_plugin(void* client, const char *path, const char *method, dictionar
memcpy(pfunc,rpath+npos+1,fpos);
pfunc[fpos-1]='\0';
}
- LOG("Client %d\n",((antd_client_t*)client)->sock );
+ LOG("Client %d\n",((antd_client_t*)rq->client)->sock );
LOG("Path : '%s'\n", rpath);
- LOG("Method:%s\n", method);
LOG("Plugin name '%s'\n",pname);
LOG("Query path. '%s'\n", pfunc);
//LOG("query :%s\n", query_string);
@@ -989,22 +843,23 @@ int execute_plugin(void* client, const char *path, const char *method, dictionar
if( plugin == NULL)
{
if(orgs) free(orgs);
- return -1;
+ unknow(rq->client);
+ return task;
}
}
// load the function
- fn = (void (*)(void*, const char *, const char*, dictionary))dlsym(plugin->handle, PLUGIN_HANDLER);
+ fn = (void* (*)(void*))dlsym(plugin->handle, PLUGIN_HANDLER);
if ((error = dlerror()) != NULL)
{
if(orgs) free(orgs);
LOG("Problem when finding %s method from %s : %s \n", PLUGIN_HANDLER, pname,error);
- return -1;
+ unknow(rq->client);
+ return task;
}
- //dictionary dic = decode_request(client,method,query_string);
- (*fn)(client,method,pfunc,dic);
- //free(dic);
+ task->type = HEAVY;
+ task->handle = fn;
free(orgs);
- return 1;
+ return task;
}
#ifdef USE_OPENSSL
diff --git a/http_server.h b/http_server.h
index 8bc2259..60a0031 100644
--- a/http_server.h
+++ b/http_server.h
@@ -8,6 +8,7 @@
#include HTTP request method not supported.");
+ __t(client, "");
+}
+void cannot_execute(void* client)
+{
+ set_status(client,500,"Internal Server Error");
+ __t(client,"Content-Type: text/html");
+ response(client,"");
+ __t(client, " Error prohibited CGI execution.");
}
int ws_enable(dictionary dic)
{
diff --git a/libs/handle.h b/libs/handle.h
index 234cfeb..5aaf303 100644
--- a/libs/handle.h
+++ b/libs/handle.h
@@ -80,6 +80,9 @@ void set_status(void*,int,const char*);
void clear_cookie(void*, dictionary);
/*Default function for plugin*/
void unknow(void*);
+void badrequest(void* client);
+void unimplemented(void* client);
+void notfound(void* client);
int ws_enable(dictionary);
char* read_line(void* sock);
int read_buf(void* sock,char* buf,int i);