Annotation of libwww/Library/src/HTDescpt.c, revision 2.15
2.1 frystyk 1: /* HTDescpt.c
2: ** FILE DESCRIPTIONS
3: **
2.2 frystyk 4: ** (c) COPYRIGHT MIT 1995.
2.1 frystyk 5: ** Please first read the full copyright statement in the file COPYRIGH.
2.15 ! frystyk 6: ** @(#) $Id: Date Author State $
2.1 frystyk 7: **
8: ** Authors:
9: ** AL Ari Luotonen <luotonen@dxcern.cern.ch>
10: **
11: ** History:
12: ** 30 Mar 94 AL Written from scratch.
13: **
14: **
15: */
16:
17: /* Library include files */
2.14 frystyk 18: #include "sysdep.h"
2.1 frystyk 19: #include "HTUtils.h"
20: #include "HTString.h"
2.3 frystyk 21: #include "HTFormat.h"
2.1 frystyk 22: #include "HTList.h"
23:
24: #define MAX_LINE_LEN 256
25:
2.10 frystyk 26: PRIVATE char * HTDescriptionFile = ".www_descript";
27: PRIVATE BOOL HTPeekTitles = YES;
2.1 frystyk 28:
29: /*
30: * Get the descriptions for files in the given directory.
31: * The return value is then later passed as an argument
32: * to HTGetDescription() which returns a description
33: * string for a single file.
34: */
2.9 frystyk 35: PUBLIC HTList * HTReadDescriptions (char * dirname)
2.1 frystyk 36: {
37: char * name = NULL;
38: FILE * fp = NULL;
39: HTList * list = NULL;
40: char buf[MAX_LINE_LEN + 1];
41:
42: if (!dirname) return NULL;
43:
2.12 frystyk 44: if ((name = (char *) HT_MALLOC(strlen(dirname) + strlen(HTDescriptionFile) + 2)) == NULL)
45: HT_OUTOFMEM("HTReadDescriptions");
2.1 frystyk 46:
47: sprintf(name, "%s/%s", dirname, HTDescriptionFile);
48: fp = fopen(name, "r");
49: if (!fp) {
50: if (PROT_TRACE)
2.13 eric 51: HTTrace("DirBrowse... No description file %s\n", name);
2.12 frystyk 52: HT_FREE(name);
2.1 frystyk 53: return NULL;
54: } else {
2.5 frystyk 55: if (WWWTRACE)
2.13 eric 56: HTTrace("DirBrowse... Description file found %s\n", name);
2.1 frystyk 57: }
58:
59: list = HTList_new();
60:
61: while (fgets(buf, MAX_LINE_LEN, fp)) {
62: char * s = buf;
63: char * t = NULL;
64: char * d = NULL;
65:
66: while (*s && WHITE(*s)) s++; /* Skip initial whitespace */
67: if (*s!='d' && *s!='D') continue; /* Junk non-description lines*/
68:
69: t = s+1;
70: while (*t && !WHITE(*t)) t++; /* Find the end of the keyword */
71: while (*t && WHITE(*t)) t++; /* Find the beginning of template */
72:
73: if (*t) {
74: d = t+1;
75: while (*d && !WHITE(*d)) d++; /* Find end of template */
76: if (*d) {
77: *d++ = 0; /* Terminate template */
78: while (*d && WHITE(*d)) d++; /* Find start of description */
79: if (*d) {
80: char * p = d;
81: while (*p && *p!='\r' && *p!='\n') p++;
82: *p = 0; /* Terminate description */
83: }
84: }
85: }
86: if (t && d && *t && *d) {
2.12 frystyk 87: char * stuff;
88: if ((stuff = (char *) HT_MALLOC(strlen(t) + strlen(d) + 2)) == NULL)
89: HT_OUTOFMEM("HTDirReadDescriptions");
2.1 frystyk 90: sprintf(stuff, "%s %s", t, d);
91: HTList_addObject(list, (void*)stuff);
92: if (PROT_TRACE)
2.13 eric 93: HTTrace("Description. %s\n", stuff);
2.1 frystyk 94: }
95: }
96: fclose(fp);
2.12 frystyk 97: HT_FREE(name);
2.1 frystyk 98: return list;
99: }
100:
101:
2.9 frystyk 102: PUBLIC void HTFreeDescriptions (HTList * descriptions)
2.1 frystyk 103: {
104: HTList * cur = descriptions;
105: char * str;
106:
107: if (descriptions) {
108: while ((str = (char*)HTList_nextObject(cur)))
2.12 frystyk 109: HT_FREE(str);
2.1 frystyk 110: HTList_delete(descriptions);
111: }
112: }
113:
114:
2.9 frystyk 115: PRIVATE char * HTPeekTitle (char * dirname,
116: char * filename)
2.1 frystyk 117: {
118: #define PEEK_BUF_SIZE 200
119: char * name;
120: FILE * fp;
121: char buf[PEEK_BUF_SIZE + 1];
122: int status;
123: char * cur;
124: char * end;
125: static char * ret = NULL;
126: char * p;
127: BOOL space = YES;
128:
2.12 frystyk 129: HT_FREE(ret); /* from previous call */
2.1 frystyk 130:
131: if (PROT_TRACE)
2.13 eric 132: HTTrace("HTPeekTitle. called, dirname=%s filename=%s\n",
2.1 frystyk 133: dirname ? dirname : "-null-",
134: filename ? filename : "-null-");
135:
136: if (!dirname || !filename) return NULL;
137:
2.12 frystyk 138: if ((name = (char *) HT_MALLOC(strlen(dirname) + strlen(filename) + 2)) == NULL)
139: HT_OUTOFMEM("HTPeekTitle");
2.1 frystyk 140: sprintf(name, "%s/%s", dirname, filename);
141:
142: fp = fopen(name, "r");
143: if (!fp) {
144: if (PROT_TRACE)
2.13 eric 145: HTTrace("HTPeekTitle. fopen failed\n");
2.1 frystyk 146: goto cleanup;
147: }
148:
149: status = fread(buf, 1, PEEK_BUF_SIZE, fp);
150: fclose(fp);
151: if (status <= 0) goto cleanup;
152: buf[status] = 0;
153:
154: cur = buf;
155: while ((cur = strchr(cur,'<'))) {
156: if (!strncasecomp(cur+1,"TITLE>",6)) {
157: cur += 7;
158: end = strchr(cur,'<');
159: while (end && strncasecomp(end+1, "/TITLE>", 7))
160: end = strchr(end+1, '<');
161: if (end) *end = 0;
2.12 frystyk 162: if ((p = ret = (char*) HT_MALLOC(strlen(cur) + 1)) == NULL)
163: HT_OUTOFMEM("HTPeekTitle");
2.1 frystyk 164: while (*cur) {
165: if (WHITE(*cur)) {
166: if (!space) {
167: space = YES;
168: *p++ = ' ';
169: }
170: }
171: else {
172: if (space) space = NO;
173: *p++ = *cur;
174: }
175: cur++;
176: }
177: *p = 0;
178: goto cleanup;
179: }
180: cur++;
181: }
182:
183: cleanup:
184: if (PROT_TRACE)
2.13 eric 185: HTTrace("HTPeekTitle. returning %c%s%c\n",
2.1 frystyk 186: ret ? '"' : '-', ret ? ret : "null", ret ? '"' : '-');
2.12 frystyk 187: HT_FREE(name);
2.1 frystyk 188: return ret;
189: }
190:
191:
192: /*
2.14 frystyk 193: * Returns a description string (that must not be HT_FREEd!)
2.1 frystyk 194: * for a file with name name in directory dirname.
195: * Description file contents is in descriptions list.
196: */
2.9 frystyk 197: PUBLIC char * HTGetDescription (HTList * descriptions,
198: char * dirname,
199: char * filename,
200: HTFormat format)
2.1 frystyk 201: {
202: HTList * cur = descriptions;
203: char * t;
204:
205: if (!dirname || !filename) return NULL;
206: /*
207: * descriptions may well be NULL in which case we may still
208: * want to peek the titles.
209: */
210:
211: while ((t = (char*)HTList_nextObject(cur))) {
212: char * d = strchr(t,' ');
213: if (!d) continue;
214: *d = 0;
2.11 frystyk 215: #if 0
2.1 frystyk 216: if (HTAA_templateMatch(t,filename)) {
2.11 frystyk 217: #else
218: if (HTStrMatch(t, filename)) {
219: #endif
2.1 frystyk 220: *d = ' ';
221: return d+1;
222: }
223: *d = ' ';
224: }
225:
226: if (HTPeekTitles && format == WWW_HTML)
227: return HTPeekTitle(dirname, filename);
228: else
229: return NULL;
230: }
231:
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