--- libaitio/src/Attic/url.c 2010/03/02 15:10:19 1.1 +++ libaitio/src/Attic/url.c 2010/03/09 09:26:27 1.2 @@ -0,0 +1,302 @@ +/************************************************************************* +* (C) 2010 AITNET ltd - Sofia/Bulgaria - +* by Michael Pounov +* +* $Author: misho $ +* $Id: url.c,v 1.2 2010/03/09 09:26:27 misho Exp $ +* +*************************************************************************/ +#include "global.h" + + +/* + * ioURLGet() Parse and get data from input URL + * @csURL = Input URL line + * @url = Output parsed URL + * return: 0 error format not find tech:// and return URL like path; + -1 error:: can`t read; >0 ok, up bits for known elements +*/ +int ioURLGet(const char *csURL, struct tagIOURL *url) +{ + char *pos, *at, *cl, *sl; + int ret = 0; + + if (!url) + return -1; + else + memset(url, 0, sizeof(*url)); + + strlcpy((char*) url->url_line, csURL, BUFSIZ); + // Tech + if (!(pos = strstr((char*) url->url_line, "://"))) { + url->url_path.vallen = strlen((char*) url->url_line); + url->url_path.value = (char*) url->url_line; + return ret; + } else { + url->url_tech.value = (char*) url->url_line; + url->url_tech.vallen = pos - (char*) url->url_line; + if (url->url_tech.vallen) + ret |= 1; + + *pos = 0; + pos += 3; + } + + // User + if ((at = strchr(pos, '@'))) { + *at++ = 0; + // Pass + if ((cl = strchr(pos, ':'))) { + *cl++ = 0; + + url->url_pass.value = cl; + url->url_pass.vallen = at - cl - 1; + if (url->url_pass.vallen) + ret |= 4; + } else + cl = at; + + url->url_user.value = pos; + url->url_user.vallen = cl - pos - 1; + if (url->url_user.vallen) + ret |= 2; + + pos = at; + } + + // Host + if ((sl = strchr(pos, '/'))) + *sl++ = 0; + else + sl = pos + strlen(pos) + 1; + // Port + if ((cl = strchr(pos, ':'))) { + *cl++ = 0; + + url->url_port.value = cl; + url->url_port.vallen = sl - cl - 1; + if (url->url_port.vallen) + ret |= 16; + } else + cl = sl; + + url->url_host.value = pos; + url->url_host.vallen = cl - pos - 1; + if (url->url_host.vallen) + ret |= 8; + + pos = sl; + + // Args + if ((at = strchr(pos, '?'))) { + *at++ = 0; + + url->url_args.value = at; + url->url_args.vallen = strlen(at); + if (url->url_args.vallen) + ret |= 64; + } else + at = pos + strlen(pos) + 1; + + // Path + url->url_path.value = pos; + url->url_path.vallen = at - pos - 1; + if (url->url_path.vallen) + ret |= 32; + + pos = at + strlen(at); + + // Reserved + url->url_reserved = pos; + if (*pos) + ret |= 128; + + return ret; +} + +/* + * io_MakeArray() Parse and make array of arguments values + * @psArgs = Input arguments line + * @csDelim = Delimiter(s) for separate + * @args = Output array of arguments ... (must be free() after procced function!) + * @nargs = Requested count of arguments + * return: 0 error format; -1 error:: can`t read; >0 ok, number of readed items +*/ +inline int io_MakeArray(char * __restrict psArgs, const char *csDelim, char *** __restrict args, int nargs) +{ + char **app; + register int i; + + if (!psArgs || !csDelim || !args || !nargs) + return -1; + if (!(*args = malloc(sizeof(char*) * nargs))) { + LOGERR; + return -1; + } else + memset(*args, 0, sizeof(char*) * nargs); + + for (i = 0, app = *args; app < *args + nargs && (*app = strsep(&psArgs, csDelim)); + **app ? i++ : i, **app ? app++ : app); + return i; +} +/* + * io_SizeArray() Parse and calculate size of array + * @csArgs = Input arguments line + * @csDelim = Delimiter(s) for separate + * return: 0 error format; -1 error:: can`t read; >0 ok, number of items +*/ +inline int io_SizeArray(const char *csArgs, const char *csDelim) +{ + register int res; + char *pos; + + if (!csArgs || !csDelim) + return -1; + + for (res = 1, pos = (char*) csArgs; (pos = strpbrk(pos, csDelim)); res++, pos++); + return res; +} +/* + * io_MakeAV() Parse and make attribute/value pair + * @csArgs = Input argument line + * @csDelim = Delimiter for separate + * @psAttr = Output Attribute + * @attrLen = Size of attribute array + * @psValue = Output Value, if ==NULL this element not present value or not wanted for return + * @valLen = Size of value array + * return: 0 error format; -1 error:: can`t read; >0 ok, number of readed items +*/ +inline int io_MakeAV(const char * __restrict csArgs, const char *csDelim, + char * __restrict psAttr, int attrLen, char * __restrict psValue, int valLen) +{ + register int ret = 0; + char *pos, *psBuf; + + if (!csArgs || !csDelim || !psAttr || !attrLen) + return -1; + if (psValue && !valLen) + return -1; + else + memset(psValue, 0, valLen); + psBuf = strdup(csArgs); + if (!psBuf) { + LOGERR; + return -1; + } + + pos = strpbrk(psBuf, csDelim); + if (pos) + *pos++ = 0; + ret++; + strlcpy(psAttr, psBuf, attrLen); + + if (pos && *pos) { + ret++; + if (psValue) + strlcpy(psValue, pos, valLen); + } + + free(psBuf); + return ret; +} + +/* + * io_Path2File() Parse and make path/filename pair + * @csArgs = Input argument line + * @psPath = Output Path, if ==NULL path not returned + * @pathLen = Size of path array + * @psFile = Output File + * @fileLen = Size of file array + * return: 0 error format; -1 error:: can`t read; >0 ok, number of readed items +*/ +inline int io_Path2File(const char * __restrict csArgs, char * __restrict psPath, int pathLen, + char * __restrict psFile, int fileLen) +{ + char *pos, *psBuf; + + if (!csArgs || !psFile || !fileLen) + return -1; + if (psPath && !pathLen) + return -1; + else + memset(psPath, 0, pathLen); + psBuf = strdup(csArgs); + if (!psBuf) { + LOGERR; + return -1; + } + + pos = strrchr(psBuf, '/'); + if (!pos) { + strlcpy(psFile, psBuf, fileLen); + + free(psBuf); + return 1; + } else + *pos++ = 0; + + strlcpy(psFile, pos, fileLen); + if (psPath) + strlcpy(psPath, psBuf, pathLen); + + free(psBuf); + return 2; +} + +/* + * ioURLGetValue() Get value from parsed URL + * @url = Input parsed URL + * @csAttr = Attribute for search + * @psValue = Return value of attribute, if ==NULL only check for existence of attribute + * @valLen = Size of psValue array + * return: 0 error attribute not find; -1 error:: can`t read; >0 ok, find at position +*/ +int ioURLGetValue(struct tagIOURL *url, const char *csAttr, char * __restrict psValue, int valLen) +{ + register int i, ret = 0; + char szBuf[BUFSIZ], **items, szElem[2][BUFSIZ]; + int len; + + if (!url || !csAttr) + return -1; + + strlcpy(szBuf, url->url_args.value, BUFSIZ); + if (io_MakeArray(szBuf, "&", &items, (len = io_SizeArray(szBuf, "&"))) < 1) + return ret; + + for (i = 0; i < len && items[i]; i++) { + if (io_MakeAV(items[i], "=", szElem[0], BUFSIZ, szElem[1], BUFSIZ) < 1) + continue; + + if (!strcmp(szElem[0], csAttr)) { + ret = i + 1; + if (psValue && valLen) + strlcpy(psValue, szElem[1], valLen); + break; + } + } + + free(items); + return ret; +} + +/* + * ioURLGetFile() Get file from parsed URL + * @url = Input parsed URL + * @psValue = Return filename, if not specified file in url path, replace with / + * @valLen = Size of psValue array + * return: -1 error:: can`t read; 0 ok +*/ +int ioURLGetFile(struct tagIOURL *url, char * __restrict psValue, int valLen) +{ + if (!url || !psValue || !valLen) + return -1; + + if (io_Path2File(url->url_path.value, NULL, 0, psValue, valLen) < 1) + return -1; + + // If not specified file in path, default replace to / + if (!*psValue) + strlcpy(psValue, "/", valLen); + return 0; +}