1: /*************************************************************************
2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
6: * $Id: url.c,v 1.5 2011/03/16 16:44:52 misho Exp $
7: *
8: *************************************************************************/
9: #include "global.h"
10:
11:
12: /*
13: * ioURLGet() Parse and get data from input URL
14: * @csURL = Input URL line
15: * @url = Output parsed URL
16: * return: 0 error format not find tech:// and return URL like path;
17: -1 error:: can`t read; >0 ok, up bits for known elements
18: */
19: int
20: ioURLGet(const char *csURL, struct tagIOURL *url)
21: {
22: char *pos, *at, *cl, *sl;
23: int ret = 0;
24:
25: if (!url)
26: return -1;
27: else
28: memset(url, 0, sizeof(*url));
29:
30: strlcpy((char*) url->url_line, csURL, BUFSIZ);
31: // Tech
32: if (!(pos = strstr((char*) url->url_line, "://"))) {
33: url->url_path.vallen = strlen((char*) url->url_line);
34: url->url_path.value = (char*) url->url_line;
35: return ret;
36: } else {
37: url->url_tech.value = (char*) url->url_line;
38: url->url_tech.vallen = pos - (char*) url->url_line;
39: if (url->url_tech.vallen)
40: ret |= 1;
41:
42: *pos = 0;
43: pos += 3;
44: }
45:
46: // User
47: if ((at = strchr(pos, '@'))) {
48: *at++ = 0;
49: // Pass
50: if ((cl = strchr(pos, ':'))) {
51: *cl++ = 0;
52:
53: url->url_pass.value = cl;
54: url->url_pass.vallen = at - cl - 1;
55: if (url->url_pass.vallen)
56: ret |= 4;
57: } else
58: cl = at;
59:
60: url->url_user.value = pos;
61: url->url_user.vallen = cl - pos - 1;
62: if (url->url_user.vallen)
63: ret |= 2;
64:
65: pos = at;
66: }
67:
68: // Host
69: if ((sl = strchr(pos, '/')))
70: *sl++ = 0;
71: else
72: sl = pos + strlen(pos) + 1;
73: // Port
74: if ((cl = strchr(pos, ':'))) {
75: *cl++ = 0;
76:
77: url->url_port.value = cl;
78: url->url_port.vallen = sl - cl - 1;
79: if (url->url_port.vallen)
80: ret |= 16;
81: } else
82: cl = sl;
83:
84: url->url_host.value = pos;
85: url->url_host.vallen = cl - pos - 1;
86: if (url->url_host.vallen)
87: ret |= 8;
88:
89: pos = sl;
90:
91: // Args
92: if ((at = strchr(pos, '?'))) {
93: *at++ = 0;
94:
95: url->url_args.value = at;
96: url->url_args.vallen = strlen(at);
97: if (url->url_args.vallen)
98: ret |= 64;
99: } else
100: at = pos + strlen(pos) + 1;
101:
102: // Path
103: url->url_path.value = pos;
104: url->url_path.vallen = at - pos - 1;
105: if (url->url_path.vallen)
106: ret |= 32;
107:
108: pos = at + strlen(at);
109:
110: // Reserved
111: url->url_reserved = pos;
112: if (*pos)
113: ret |= 128;
114:
115: return ret;
116: }
117:
118: /*
119: * io_MakeArray() Parse and make array of arguments values ...
120: * (input string will be modified! and output array must be free)
121: * @psArgs = Input arguments line, after execute string is modified!!!
122: * @csDelim = Delimiter(s) for separate
123: * @args = Output array of arguments ... (must be free() after procced function!)
124: * @nargs = Maximum requested count of arguments from input string psArgs
125: * return: 0 error format; -1 error:: can`t read; >0 ok, number of readed items
126: */
127: inline int
128: io_MakeArray(char * __restrict psArgs, const char *csDelim, char *** __restrict args, int nargs)
129: {
130: char **app;
131: register int i;
132:
133: if (!psArgs || !csDelim || !args || !nargs)
134: return -1;
135: if (!(*args = malloc(sizeof(char*) * nargs))) {
136: LOGERR;
137: return -1;
138: } else
139: memset(*args, 0, sizeof(char*) * nargs);
140:
141: for (i = 0, app = *args; app < *args + nargs && (*app = strsep((char **) &psArgs, csDelim));
142: **app ? i++ : i, **app ? app++ : app);
143: return i;
144: }
145: /*
146: * io_SizeArray() Parse and calculate size of array
147: * @csArgs = Input arguments line
148: * @csDelim = Delimiter(s) for separate
149: * return: 0 error format; -1 error:: can`t read; >0 ok, number of items
150: */
151: inline int
152: io_SizeArray(const char *csArgs, const char *csDelim)
153: {
154: register int res;
155: char *pos;
156:
157: if (!csArgs || !csDelim)
158: return -1;
159:
160: for (res = 1, pos = (char*) csArgs; (pos = strpbrk(pos, csDelim)); res++, pos++);
161: return res;
162: }
163: /*
164: * io_MakeAV() Parse and make attribute/value pair
165: * @csArgs = Input argument line
166: * @csDelim = Delimiter for separate
167: * @psAttr = Output Attribute
168: * @attrLen = Size of attribute array
169: * @psValue = Output Value, if ==NULL this element not present value or not wanted for return
170: * @valLen = Size of value array
171: * return: 0 error format; -1 error:: can`t read; >0 ok, number of readed items
172: */
173: inline int
174: io_MakeAV(const char * __restrict csArgs, const char *csDelim,
175: char * __restrict psAttr, int attrLen, char * __restrict psValue, int valLen)
176: {
177: register int ret = 0;
178: char *pos, *psBuf;
179:
180: if (!csArgs || !csDelim || !psAttr || !attrLen)
181: return -1;
182: if (psValue && !valLen)
183: return -1;
184: else
185: memset(psValue, 0, valLen);
186: psBuf = strdup(csArgs);
187: if (!psBuf) {
188: LOGERR;
189: return -1;
190: }
191:
192: pos = strpbrk(psBuf, csDelim);
193: if (pos)
194: *pos++ = 0;
195: ret++;
196: strlcpy(psAttr, psBuf, attrLen);
197:
198: if (pos && *pos) {
199: ret++;
200: if (psValue)
201: strlcpy(psValue, pos, valLen);
202: }
203:
204: free(psBuf);
205: return ret;
206: }
207:
208: /*
209: * io_Path2File() Parse and make path/filename pair
210: * @csArgs = Input argument line
211: * @psPath = Output Path, if ==NULL path not returned
212: * @pathLen = Size of path array
213: * @psFile = Output File
214: * @fileLen = Size of file array
215: * return: 0 error format; -1 error:: can`t read; >0 ok, number of readed items
216: */
217: inline int
218: io_Path2File(const char * __restrict csArgs, char * __restrict psPath, int pathLen,
219: char * __restrict psFile, int fileLen)
220: {
221: char *pos, *psBuf;
222:
223: if (!csArgs || !psFile || !fileLen)
224: return -1;
225: if (psPath && !pathLen)
226: return -1;
227: else
228: memset(psPath, 0, pathLen);
229: psBuf = strdup(csArgs);
230: if (!psBuf) {
231: LOGERR;
232: return -1;
233: }
234:
235: pos = strrchr(psBuf, '/');
236: if (!pos) {
237: strlcpy(psFile, psBuf, fileLen);
238:
239: free(psBuf);
240: return 1;
241: } else
242: *pos++ = 0;
243:
244: strlcpy(psFile, pos, fileLen);
245: if (psPath)
246: strlcpy(psPath, psBuf, pathLen);
247:
248: free(psBuf);
249: return 2;
250: }
251:
252: /*
253: * ioURLGetValue() Get value from parsed URL
254: * @url = Input parsed URL
255: * @csAttr = Attribute for search
256: * @psValue = Return value of attribute, if ==NULL only check for existence of attribute
257: * @valLen = Size of psValue array
258: * return: 0 error attribute not find; -1 error:: can`t read; >0 ok, find at position
259: */
260: int
261: ioURLGetValue(struct tagIOURL *url, const char *csAttr, char * __restrict psValue, int valLen)
262: {
263: register int i, ret = 0;
264: char szBuf[BUFSIZ], **items, szElem[2][BUFSIZ];
265: int len;
266:
267: if (!url || !csAttr)
268: return -1;
269:
270: strlcpy(szBuf, url->url_args.value, BUFSIZ);
271: if (io_MakeArray(szBuf, "&", &items, (len = io_SizeArray(szBuf, "&"))) < 1)
272: return ret;
273:
274: for (i = 0; i < len && items[i]; i++) {
275: if (io_MakeAV(items[i], "=", szElem[0], BUFSIZ, szElem[1], BUFSIZ) < 1)
276: continue;
277:
278: if (!strcmp(szElem[0], csAttr)) {
279: ret = i + 1;
280: if (psValue && valLen)
281: strlcpy(psValue, szElem[1], valLen);
282: break;
283: }
284: }
285:
286: free(items);
287: return ret;
288: }
289:
290: /*
291: * ioURLGetFile() Get file from parsed URL
292: * @url = Input parsed URL
293: * @psValue = Return filename, if not specified file in url path, replace with /
294: * @valLen = Size of psValue array
295: * return: -1 error:: can`t read; 0 ok
296: */
297: int
298: ioURLGetFile(struct tagIOURL *url, char * __restrict psValue, int valLen)
299: {
300: if (!url || !psValue || !valLen)
301: return -1;
302:
303: if (io_Path2File(url->url_path.value, NULL, 0, psValue, valLen) < 1)
304: return -1;
305:
306: // If not specified file in path, default replace to /
307: if (!*psValue)
308: strlcpy(psValue, "/", valLen);
309: return 0;
310: }
311:
312: // ------------------------------------------
313:
314: /*
315: * ioXMLGet() Parse and get data from input XML request string [ns:]container[|attribute[=value]][?data]
316: * @csXML = Input XML request line
317: * @xml = Output parsed XML request
318: * return: 0 error format incorrect, -1 error:: can`t read; >0 ok readed elements bits
319: */
320: int
321: ioXMLGet(const char *csXML, struct tagReqXML *xml)
322: {
323: char *pos, *p, *end;
324: int ret = 0;
325:
326: if (!csXML || !xml)
327: return -1;
328: else
329: memset(xml, 0, sizeof *xml);
330:
331: strlcpy((char*) xml->xml_line, csXML, BUFSIZ);
332: // if namespace present
333: if ((pos = strchr((char*) xml->xml_line, ':'))) {
334: xml->xml_namespace.value = (char*) xml->xml_line;
335: xml->xml_namespace.vallen = pos - (char*) xml->xml_line;
336: if (xml->xml_namespace.vallen)
337: ret |= 1;
338: *pos++ = 0;
339: } else
340: pos = (char*) xml->xml_line;
341: // if container is path
342: if (*pos == '/') {
343: xml->xml_node.path.value = pos;
344: xml->xml_node.path.vallen = strlen(pos);
345: if (!xml->xml_node.path.vallen)
346: ret = 0;
347: else
348: ret |= 32;
349: return ret;
350: } else {
351: // container
352: xml->xml_node.container.value = pos;
353: xml->xml_node.container.vallen = strlen(pos);
354: if (!xml->xml_node.container.vallen)
355: return 0;
356: else
357: ret |= 2;
358: }
359: end = strchr(pos, '?');
360: // if attribute present
361: if (pos && (p = strchr(pos, '|')) && (!end || end > p)) {
362: pos = p;
363: *pos++ = 0;
364: xml->xml_node.container.vallen = strlen(xml->xml_node.container.value);
365: if (!xml->xml_node.container.vallen)
366: return 0;
367:
368: xml->xml_attribute.value = pos;
369: xml->xml_attribute.vallen = strlen(pos);
370: if (xml->xml_attribute.vallen)
371: ret |= 4;
372: }
373: // if value present
374: if (pos && (p = strchr(pos, '=')) && (!end || end > p)) {
375: if (!(ret & 4))
376: return 0;
377: else
378: pos = p;
379: *pos++ = 0;
380: xml->xml_attribute.vallen = strlen(xml->xml_attribute.value);
381: if (!xml->xml_attribute.vallen)
382: return 0;
383:
384: xml->xml_value.value = pos;
385: xml->xml_value.vallen = strlen(pos);
386: if (xml->xml_value.vallen)
387: ret |= 8;
388: }
389: // if data present
390: if (pos && end) {
391: if (ret < 2)
392: return 0;
393: else
394: pos = end;
395: *pos++ = 0;
396: if (ret & 8) {
397: xml->xml_value.vallen = strlen(xml->xml_value.value);
398: if (!xml->xml_value.vallen)
399: return 0;
400: } else if (ret & 4) {
401: xml->xml_attribute.vallen = strlen(xml->xml_attribute.value);
402: if (!xml->xml_attribute.vallen)
403: return 0;
404: } else if (ret & 2) {
405: xml->xml_node.container.vallen = strlen(xml->xml_node.container.value);
406: if (!xml->xml_node.container.vallen)
407: return 0;
408: } else
409: return 0;
410:
411: xml->xml_data.value = pos;
412: xml->xml_data.vallen = strlen(pos);
413: if (xml->xml_data.vallen)
414: ret |= 16;
415: }
416:
417: return ret;
418: }
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