1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
#include "files.h"
#include "http.h"
int HTTPHost(const char *URL, char **Host)
{
const char *ptr=NULL, *eptr;
int result=FALSE;
//return TRUE but don't clip protocol off URL. This will cause it to fail the 'same origin check' in HTTPBuildURL
if (strncmp(URL, "mailto:", 7) ==0)
{
ptr=URL;
result=TRUE;
}
else if (strncmp(URL, "http:", 5) ==0) ptr=URL+5;
else if (strncmp(URL, "https:", 6) ==0) ptr=URL+6;
else if (strncmp(URL, "//",2)==0) ptr=URL;
while (ptr && (*ptr=='/')) ptr++;
if (ptr) result=TRUE;
if (Host)
{
if (! ptr) *Host=CopyStr(*Host, "");
else
{
eptr=strchr(ptr, '/');
if (! eptr) eptr=strchr(ptr, '?');
if (eptr) *Host=CopyStrLen(*Host, URL, eptr-URL);
else *Host=CopyStr(*Host, URL);
}
}
return(result);
}
static char *HTTPBuildURL(char *RetStr, const char *Parent, const char *Value)
{
char *ptr, *Host=NULL;
RetStr=CopyStr(RetStr,"");
//if ptr then we got an absolute URL starting with https: or http:
if (HTTPHost(Value, &Host))
{
//same origin check. If host doesn't match our parent host, don't touch it
if (strcasecmp(Parent, Host) !=0)
{
Destroy(Host);
return(RetStr);
}
}
else if (StrValid(Parent))
{
// you can have a URL of the form '?n=10' which is just recalling the current URL with new arguments. We ignore this
if (Value[0]=='?') return(RetStr);
//if the URL starts with '/' then it needs the host prepended to it
if (Value[0] =='/')
{
//Copy Host into RetStr. No '/' needed after as Value already has that
HTTPHost(Parent, &RetStr);
}
//if it doesn't start with '/' then it needs the whole parent path appended
else RetStr=MCopyStr(RetStr, Parent, "/", NULL);
}
ptr=strchr(Value, '?');
if (ptr) RetStr=CatStrLen(RetStr, Value, ptr-Value);
else RetStr=CatStr(RetStr, Value);
Destroy(Host);
return(RetStr);
}
static void HTTPGlobAdd(ListNode *Items, const char *Parent, const char *Data)
{
struct stat *Stat;
char *Name=NULL, *Value=NULL, *Host=NULL, *Tempstr=NULL;
const char *ptr;
if (! HTTPHost(Parent, &Host)) Host=CopyStr(Host, Parent);
ptr=GetNameValuePair(Data, "\\S","=",&Name, &Value);
while (ptr)
{
//just add a blank stat
if ( (strcmp(Name, "src")==0) || (strcmp(Name, "href")==0))
{
//printf("ADD: [%s] [%s]\n", Value, Parent);
//don't add 'self' links that point back to this document
if (strcmp(Value, Parent) !=0)
{
Stat=(struct stat *) calloc(1, sizeof(struct stat));
Tempstr=HTTPBuildURL(Tempstr, Parent, Value);
if (StrValid(Tempstr)) ListAddNamedItem(Items, Tempstr, Stat);
}
}
ptr=GetNameValuePair(ptr, "\\S","=",&Name, &Value);
}
Destroy(Tempstr);
Destroy(Value);
Destroy(Name);
Destroy(Host);
}
int HTTPGlob(HashratCtx *Ctx, const char *Path, ListNode *Dirs)
{
STREAM *S;
char *Tempstr=NULL, *Name=NULL, *Data=NULL, *Parent=NULL;
char *wptr, *start;
const char *ptr;
Parent=CopyStr(Parent, Path);
start=Parent;
if (strncmp(start, "https:",6)==0) start+=6;
if (strncmp(start, "http:",5)==0) start+=5;
while (*start=='/') start++;
wptr=strrchr(start, '/');
if ((wptr) && (wptr > start)) *wptr='\0';
S=STREAMOpen(Path, "r");
if (S)
{
Tempstr=STREAMReadDocument(Tempstr, S);
STREAMClose(S);
}
if (Tempstr)
{
ptr=XMLGetTag(Tempstr, NULL, &Name, &Data);
while (ptr)
{
switch (*Name)
{
case 'a':
case 'A':
if (strcasecmp(Name, "a")==0) HTTPGlobAdd(Dirs, Parent, Data);
break;
case 'i':
case 'I':
if (strcmp(Name, "img")==0) HTTPGlobAdd(Dirs, Parent, Data);
break;
case 's':
case 'S':
if (strcmp(Name, "script")==0) HTTPGlobAdd(Dirs, Parent, Data);
break;
case '!':
/*
// html comment
while (ptr && (strcmp(Name, "--") !=0) )
{
//terminator actually tends to show up as data rather than name
printf("Comment: %s\n",Data);
if (strcmp(Data, "--") ==0) break;
ptr=XMLGetTag(ptr, NULL, &Name, &Data);
}
*/
break;
}
ptr=XMLGetTag(ptr, NULL, &Name, &Data);
}
}
Destroy(Tempstr);
Destroy(Parent);
Destroy(Name);
Destroy(Data);
return(FT_DIR);
}
int HTTPStat(HashratCtx *Ctx, const char *Path, struct stat *FStat)
{
STREAM *S;
const char *ptr;
int result=FT_FILE;
memset(FStat, 0, sizeof(struct stat));
S=STREAMOpen(Path, "H");
if (S)
{
ptr=STREAMGetValue(S, "HTTP:Content-Length");
if (StrValid(ptr)) FStat->st_size=atoi(ptr);
ptr=STREAMGetValue(S, "HTTP:Content-Type");
if (StrValid(ptr) && (strncmp(ptr,"text/html",9)==0))
{
result=FT_DIR;
}
FStat->st_mode |= 0444;
STREAMClose(S);
}
return(result);
}
|
