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