From 03d949c2de3c32a04601b12174500f11f09376ae Mon Sep 17 00:00:00 2001 From: lxsang Date: Sun, 7 Oct 2018 23:43:38 +0200 Subject: [PATCH] fist version --- .gitignore | 55 ++++++++++++++++ Makefile | 37 +++++++++++ cgi.c | 183 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 275 insertions(+) create mode 100644 .gitignore create mode 100644 Makefile create mode 100644 cgi.c diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..8017b3e --- /dev/null +++ b/.gitignore @@ -0,0 +1,55 @@ +# Prerequisites +plugins +build +*._* +*.d +.vscode +# Object files +*.o +*.ko +*.obj +*.elf + +# Linker output +*.ilk +*.map +*.exp + +# Precompiled Headers +*.gch +*.pch + +# Libraries +*.lib +*.a +*.la +*.lo + +# Shared objects (inc. Windows DLLs) +*.dll +*.so +*.so.* +*.dylib + +# Executables +*.exe +*.out +*.app +*.i*86 +*.x86_64 +*.hex + +# Debug files +*.dSYM/ +*.su +*.idb +*.pdb + +# Kernel Module Compile Results +*.mod* +*.cmd +modules.order +Module.symvers +Mkfile.old +dkms.con +.DS_Store diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..dc55310 --- /dev/null +++ b/Makefile @@ -0,0 +1,37 @@ +include ../../var.mk +PL_NAME=cgi +PLUGINS=$(PL_NAME).$(EXT) +APP_DIR=$(BUILDIRD)/htdocs/ + +OBJS = $(PLUGINS_BASE)/plugin.o + +PLUGINSDEP = $(OBJS) \ + cgi.o + + +PLUGINLIBS = libantd.$(EXT) -lvncclient -lpthread -lz -ljpeg# -lsqlite3 + +PCFLAGS=-W -Wall -g -D DEBUG $(PPF_FLAG) + +main: $(PLUGINSDEP) $(PLUGINS) #lib + +%.o: %.c + $(CC) $(PCFLAGS) -fPIC $(INCFLAG) -c $< -o $@ + +%.$(EXT): + -ln -s $(PBUILDIRD)/libantd.$(EXT) . + $(CC) $(PCFLAGS) $(PLUGINSDEP) $(PLUGINLIBS) -shared -o $(PBUILDIRD)/$(basename $@).$(EXT) + + +clean: #libclean + -rm -f *.o *.$(EXT) $(PBUILDIRD)/$(PLUGINS) + -rm $(PLUGINS_BASE)/plugin.o + + + +.PRECIOUS: %.o +.PHONY: lib clean +full: clean main + + + diff --git a/cgi.c b/cgi.c new file mode 100644 index 0000000..7afc490 --- /dev/null +++ b/cgi.c @@ -0,0 +1,183 @@ +#include "plugin.h" + +void init() +{ + +} +void destroy() +{ + +} + +static void add_vars(list* l, char* k, char* v) +{ + if(!v || !l || !k) return; + char* data = __s("%s=%s", k, v); + list_put_s(l, data); + free(data); +} + +void* handle(void* data) +{ + antd_request_t *rq = (antd_request_t *)data; + plugin_header_t* __plugin__ = meta(); + void *cl = (void *)rq->client; + antd_task_t* task = NULL; + char* tmp = NULL; + char* sub = NULL; + task = antd_create_task(NULL, data, NULL); + task->priority++; + dictionary request = (dictionary) rq->request; + dictionary header = (dictionary) dvalue(rq->request,"REQUEST_HEADER"); + list env_vars = list_init(); + add_vars(&env_vars, "GATEWAY_INTERFACE", "CGI/1.1"); + add_vars(&env_vars, "SERVER_SOFTWARE",SERVER_NAME); + tmp = (char*)dvalue(request, "REQUEST_QUERY"); + if(!tmp) + add_vars(&env_vars, "QUERY_STRING", ""); + else + { + sub = strchr(tmp,'?'); + if(sub) + { + sub++; + add_vars(&env_vars, "QUERY_STRING", sub); + } + else + add_vars(&env_vars, "QUERY_STRING", ""); + } + tmp = (char*)dvalue(request, "METHOD"); + if(tmp) + add_vars(&env_vars, "REQUEST_METHOD", tmp); + tmp = (char*)dvalue(header, "Content-Type"); + if(tmp) + add_vars(&env_vars, "CONTENT_TYPE", tmp); + else + add_vars(&env_vars, "CONTENT_TYPE", ""); + tmp = (char*)dvalue(header, "Content-Length"); + if(tmp) + add_vars(&env_vars, "CONTENT_LENGTH", tmp); + else + add_vars(&env_vars, "CONTENT_LENGTH", ""); + add_vars(&env_vars, "DOCUMENT_ROOT", __plugin__->htdocs); + tmp = (char*) dvalue(request, "REQUEST_PATH"); + if(tmp) + add_vars(&env_vars, "PATH_INFO", tmp); + else + add_vars(&env_vars, "PATH_INFO", ""); + tmp = (char*) dvalue(header,"REMOTE_ADDR"); + add_vars(&env_vars, "REMOTE_ADDR", tmp); + add_vars(&env_vars, "REMOTE_HOST", tmp); + add_vars(&env_vars, "SERVER_NAME", SERVER_NAME); + add_vars(&env_vars, "SERVER_PORT", (char*) dvalue(header, "SERVER_PORT")); + add_vars(&env_vars, "SERVER_PROTOCOL", "HTTP/1.1"); + // add remaining header to the vars + association it; + for_each_assoc(it, header) + { + tmp = __s("HTTP_%s", it->key); + char *s = tmp; + while (*s) { + if(*s == '-') + *s = '_'; + else if(*s != '_') + *s = toupper((char) *s); + s++; + } + add_vars(&env_vars, tmp, (char*)it->value); + free(tmp); + } + tmp = (char*)dvalue(request, "RESOURCE_PATH"); + if(tmp) + { + add_vars(&env_vars, "SCRIPT_NAME", tmp); + tmp = __s("%s/%s",__plugin__->htdocs, tmp); + add_vars(&env_vars, "SCRIPT_FILENAME", tmp); + add_vars(&env_vars, "PATH_TRANSLATED", tmp); + free(tmp); + } + else + { + add_vars(&env_vars, "SCRIPT_FILENAME", ""); + add_vars(&env_vars, "PATH_TRANSLATED", ""); + add_vars(&env_vars, "SCRIPT_NAME", ""); + } + // now exec the cgi bin + item np = env_vars; + int size = list_size(env_vars); + char** envs = (char**) malloc((size+1)*sizeof(*envs)); + envs[size] = NULL; + int i = 0; + while(np) + { + envs[i] = np->value.s; + np = np->next; + i++; + } + /* + pid_t pid = 0; + int inpipefd[2]; + int outpipefd[2]; + char buf[256]; + char msg[256]; + int status; + + pipe(inpipefd); + pipe(outpipefd); + pid = fork(); + if (pid == 0) + { + // Child + dup2(outpipefd[0], STDIN_FILENO); + dup2(inpipefd[1], STDOUT_FILENO); + dup2(inpipefd[1], STDERR_FILENO); + + //ask kernel to deliver SIGTERM in case the parent dies + //prctl(PR_SET_PDEATHSIG, SIGTERM); + + //replace tee with your process + execve("printenv > env.txt", NULL, envs); + free(envs); + list_free(&env_vars); + // Nothing below this line should be executed by child process. If so, + // it means that the execl function wasn't successfull, so lets exit: + _exit(1); + } + // The code below will be executed only by parent. You can write and read + // from the child using pipefd descriptors, and you can send signals to + // the process using its pid by kill() function. If the child process will + // exit unexpectedly, the parent process will obtain SIGCHLD signal that + // can be handled (e.g. you can respawn the child process). + + //close unused pipe ends + close(outpipefd[0]); + close(inpipefd[1]); + + // Now, you can write to outpipefd[1] and read from inpipefd[0] : + while(1) + { + printf("Enter message to send\n"); + scanf("%s", msg); + if(strcmp(msg, "exit") == 0) break; + + write(outpipefd[1], msg, strlen(msg)); + int r = read(inpipefd[0], buf, 256); + if(r > 0) + { + printf("Received answer: %s\n", buf); + + } + } + + //kill(pid, SIGKILL); //send SIGKILL signal to the child process + waitpid(pid, &status, 0);*/ + //char *argv[] = { "printenv > /Users/mrsang/Documents/build/www/env.txt", 0 }; + //execve(argv[0],&argv[0], envs); + char *argv[] = { "/usr/local/bin/php-cgi", 0 }; + execve(argv[0], &argv[0], envs); + + free(envs); + list_free(&env_vars); + unimplemented(cl); + return task; +} \ No newline at end of file