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25697a35 | 1 | /* |
94ff9470 | 2 | * SARG Squid Analysis Report Generator http://sarg.sourceforge.net |
61d965f3 | 3 | * 1998, 2012 |
94ff9470 GS |
4 | * |
5 | * SARG donations: | |
6 | * please look at http://sarg.sourceforge.net/donations.php | |
1164c474 FM |
7 | * Support: |
8 | * http://sourceforge.net/projects/sarg/forums/forum/363374 | |
25697a35 GS |
9 | * --------------------------------------------------------------------- |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. | |
24 | * | |
25 | */ | |
26 | ||
27 | #include "include/conf.h" | |
5f3cfd1d | 28 | #include "include/defs.h" |
16b013cc FM |
29 | #include "include/readlog.h" |
30 | ||
31 | //! Name of the file containing the unsorted authentication failure entries. | |
32 | static char authfail_unsort[MAXLEN]=""; | |
33 | //! The file handle to write the entries. | |
34 | static FILE *fp_authfail=NULL; | |
35 | //! \c True if at least one anthentication failure entry exists. | |
36 | static bool authfail_exists=false; | |
37 | ||
38 | /*! | |
39 | Open a file to store the authentication failure. | |
40 | ||
41 | \return The file handle or NULL if no file is necessary. | |
42 | */ | |
43 | void authfail_open(void) | |
44 | { | |
45 | if ((ReportType & REPORT_TYPE_AUTH_FAILURES) == 0) { | |
46 | if (debugz) debugaz(_("Authentication failure report not produced as it is not requested\n")); | |
47 | return; | |
48 | } | |
49 | if (Privacy) { | |
50 | if (debugz) debugaz(_("Authentication failure report not produced because privacy option is active\n")); | |
51 | return; | |
52 | } | |
53 | ||
54 | snprintf(authfail_unsort,sizeof(authfail_unsort),"%s/authfail.int_unsort",tmp); | |
55 | if ((fp_authfail=MY_FOPEN(authfail_unsort,"w"))==NULL) { | |
56 | debuga(_("(log) Cannot open file: %s - %s\n"),authfail_unsort,strerror(errno)); | |
57 | exit(EXIT_FAILURE); | |
58 | } | |
59 | return; | |
60 | } | |
61 | ||
62 | /*! | |
63 | Write one entry in the unsorted authentication file file provided that it is required. | |
64 | ||
65 | \param log_entry The entry to write into the log file. | |
66 | */ | |
67 | void authfail_write(const struct ReadLogStruct *log_entry) | |
68 | { | |
69 | char date[80]; | |
70 | ||
71 | if (fp_authfail && (strstr(log_entry->HttpCode,"DENIED/401") != 0 || strstr(log_entry->HttpCode,"DENIED/407") != 0)) { | |
72 | strftime(date,sizeof(date),"%d/%m/%Y\t%H:%M:%S",log_entry->EntryTime); | |
73 | fprintf(fp_authfail, "%s\t%s\t%s\t%s\n",date,log_entry->User,log_entry->Ip,log_entry->Url); | |
74 | authfail_exists=true; | |
75 | } | |
76 | } | |
77 | ||
78 | /*! | |
79 | Close the file opened by authfail_open(). | |
80 | */ | |
81 | void authfail_close(void) | |
82 | { | |
83 | if (fp_authfail) | |
84 | { | |
85 | if (fclose(fp_authfail)==EOF) | |
86 | { | |
87 | debuga(_("Write error in %s: %s\n"),authfail_unsort,strerror(errno)); | |
88 | exit(EXIT_FAILURE); | |
89 | } | |
90 | fp_authfail=NULL; | |
91 | } | |
92 | } | |
93 | ||
94 | /*! | |
95 | Tell the caller if a authentication failure report exists. | |
96 | ||
97 | \return \c True if the report is available or \c false if no report | |
98 | was generated. | |
99 | */ | |
100 | bool is_authfail(void) | |
101 | { | |
102 | return(authfail_exists); | |
103 | } | |
104 | ||
25697a35 | 105 | |
7ae50eee FM |
106 | static void show_ignored_auth(FILE *fp_ou,int count) |
107 | { | |
108 | char ignored[80]; | |
109 | ||
110 | snprintf(ignored,sizeof(ignored),ngettext("%d more authentication failure not shown here…","%d more authentication failures not shown here…",count),count); | |
111 | fprintf(fp_ou,"<tr><td class=\"data\"></td><td class=\"data\"></td><td class=\"data\"></td><td class=\"data2 more\">%s</td></tr>\n",ignored); | |
112 | } | |
113 | ||
32e71fa4 | 114 | void authfail_report(void) |
25697a35 | 115 | { |
9bd92830 FM |
116 | FILE *fp_in = NULL, *fp_ou = NULL; |
117 | ||
118 | char *buf; | |
119 | char *url; | |
16b013cc | 120 | char authfail_sort[MAXLEN]; |
9bd92830 FM |
121 | char report[MAXLEN]; |
122 | char ip[MAXLEN]; | |
16b013cc | 123 | char oip[MAXLEN]=""; |
9bd92830 | 124 | char user[MAXLEN]; |
16b013cc FM |
125 | char ouser[MAXLEN]=""; |
126 | char ouser2[MAXLEN]=""; | |
9bd92830 FM |
127 | char data[15]; |
128 | char hora[15]; | |
9bd92830 | 129 | char csort[MAXLEN]; |
16b013cc FM |
130 | int z=0; |
131 | int count=0; | |
132 | int cstatus; | |
9bd92830 FM |
133 | int day,month,year; |
134 | bool new_user; | |
135 | struct getwordstruct gwarea; | |
136 | longline line; | |
137 | struct userinfostruct *uinfo; | |
138 | struct tm t; | |
139 | ||
16b013cc | 140 | if (!authfail_exists) { |
b378aaf1 FM |
141 | if (!KeepTempLog && unlink(authfail_unsort)) |
142 | debuga(_("Failed to delete \"%s\": %s\n"),authfail_unsort,strerror(errno)); | |
9bd92830 | 143 | |
16b013cc | 144 | authfail_unsort[0]='\0'; |
9f93fec3 | 145 | if (debugz) debugaz(_("Authentication failures report not produced because it is empty\n")); |
9bd92830 FM |
146 | return; |
147 | } | |
148 | ||
16b013cc | 149 | snprintf(authfail_sort,sizeof(authfail_sort),"%s/authfail.int_log",tmp); |
9bd92830 FM |
150 | snprintf(report,sizeof(report),"%s/authfail.html",outdirname); |
151 | ||
16b013cc | 152 | snprintf(csort,sizeof(csort),"sort -b -t \"\t\" -T \"%s\" -k 3,3 -k 5,5 -o \"%s\" \"%s\"", tmp, authfail_sort, authfail_unsort); |
9bd92830 FM |
153 | cstatus=system(csort); |
154 | if (!WIFEXITED(cstatus) || WEXITSTATUS(cstatus)) { | |
155 | debuga(_("sort command return status %d\n"),WEXITSTATUS(cstatus)); | |
156 | debuga(_("sort command: %s\n"),csort); | |
157 | exit(EXIT_FAILURE); | |
158 | } | |
16b013cc FM |
159 | if((fp_in=MY_FOPEN(authfail_sort,"r"))==NULL) { |
160 | debuga(_("(authfail) Cannot open file %s\n"),authfail_sort); | |
9bd92830 FM |
161 | debuga(_("sort command: %s\n"),csort); |
162 | exit(EXIT_FAILURE); | |
163 | } | |
b378aaf1 FM |
164 | if (!KeepTempLog && unlink(authfail_unsort)) { |
165 | debuga(_("Cannot delete \"%s\": %s\n"),authfail_unsort,strerror(errno)); | |
08f9b029 FM |
166 | exit(EXIT_FAILURE); |
167 | } | |
16b013cc | 168 | authfail_unsort[0]='\0'; |
9bd92830 FM |
169 | |
170 | if((fp_ou=MY_FOPEN(report,"w"))==NULL) { | |
007905af FM |
171 | debuga(_("(authfail) Cannot open file %s\n"),report); |
172 | exit(EXIT_FAILURE); | |
9bd92830 FM |
173 | } |
174 | ||
175 | write_html_header(fp_ou,(IndexTree == INDEX_TREE_DATE) ? 3 : 1,_("Authentication Failures"),HTML_JS_NONE); | |
176 | fputs("<tr><td class=\"header_c\">",fp_ou); | |
177 | fprintf(fp_ou,_("Period: %s"),period.html); | |
178 | fputs("</td></tr>\n",fp_ou); | |
179 | fprintf(fp_ou,"<tr><th class=\"header_c\">%s</th></tr>\n",_("Authentication Failures")); | |
180 | close_html_header(fp_ou); | |
181 | ||
182 | fputs("<div class=\"report\"><table cellpadding=\"0\" cellspacing=\"2\">\n",fp_ou); | |
183 | fprintf(fp_ou,"<tr><th class=\"header_l\">%s</th><th class=\"header_l\">%s</th><th class=\"header_l\">%s</th><th class=\"header_l\">%s</th></tr>\n",_("USERID"),_("IP/NAME"),_("DATE/TIME"),_("ACCESSED SITE")); | |
184 | ||
185 | if ((line=longline_create())==NULL) { | |
16b013cc | 186 | debuga(_("Not enough memory to read file %s\n"),authfail_sort); |
9bd92830 FM |
187 | exit(EXIT_FAILURE); |
188 | } | |
189 | ||
190 | while((buf=longline_read(fp_in,line))!=NULL) { | |
191 | getword_start(&gwarea,buf); | |
192 | if (getword(data,sizeof(data),&gwarea,'\t')<0) { | |
16b013cc | 193 | debuga(_("There is a broken date in file %s\n"),authfail_sort); |
9bd92830 FM |
194 | exit(EXIT_FAILURE); |
195 | } | |
196 | if (getword(hora,sizeof(hora),&gwarea,'\t')<0) { | |
16b013cc | 197 | debuga(_("There is a broken time in file %s\n"),authfail_sort); |
9bd92830 FM |
198 | exit(EXIT_FAILURE); |
199 | } | |
200 | if (getword(user,sizeof(user),&gwarea,'\t')<0) { | |
16b013cc | 201 | debuga(_("There is a broken user ID in file %s\n"),authfail_sort); |
9bd92830 FM |
202 | exit(EXIT_FAILURE); |
203 | } | |
204 | if (getword(ip,sizeof(ip),&gwarea,'\t')<0) { | |
16b013cc | 205 | debuga(_("There is a broken IP address in file %s\n"),authfail_sort); |
9bd92830 FM |
206 | exit(EXIT_FAILURE); |
207 | } | |
208 | if (getword_ptr(buf,&url,&gwarea,'\t')<0) { | |
16b013cc | 209 | debuga(_("There is a broken url in file %s\n"),authfail_sort); |
9bd92830 FM |
210 | exit(EXIT_FAILURE); |
211 | } | |
212 | if (sscanf(data,"%d/%d/%d",&day,&month,&year)!=3) continue; | |
213 | computedate(year,month,day,&t); | |
214 | strftime(data,sizeof(data),"%x",&t); | |
215 | ||
216 | uinfo=userinfo_find_from_id(user); | |
217 | if (!uinfo) { | |
16b013cc | 218 | debuga(_("Unknown user ID %s in file %s\n"),user,authfail_sort); |
9bd92830 FM |
219 | exit(EXIT_FAILURE); |
220 | } | |
221 | ||
222 | new_user=false; | |
223 | if(z == 0) { | |
224 | strcpy(ouser,user); | |
225 | strcpy(oip,ip); | |
226 | z++; | |
227 | new_user=true; | |
228 | } else { | |
229 | if(strcmp(ouser,user) != 0) { | |
230 | strcpy(ouser,user); | |
231 | new_user=true; | |
232 | } | |
233 | if(strcmp(oip,ip) != 0) { | |
234 | strcpy(oip,ip); | |
235 | new_user=true; | |
236 | } | |
237 | } | |
238 | ||
007905af FM |
239 | if(AuthfailReportLimit>0) { |
240 | if(strcmp(ouser2,uinfo->label) == 0) { | |
9bd92830 FM |
241 | count++; |
242 | } else { | |
7ae50eee FM |
243 | if(count>AuthfailReportLimit && AuthfailReportLimit>0) |
244 | show_ignored_auth(fp_ou,count-AuthfailReportLimit); | |
9bd92830 FM |
245 | count=1; |
246 | strcpy(ouser2,uinfo->label); | |
247 | } | |
7ae50eee | 248 | if(count > AuthfailReportLimit) |
9bd92830 FM |
249 | continue; |
250 | } | |
251 | ||
252 | fputs("<tr>",fp_ou); | |
253 | if (new_user) | |
254 | fprintf(fp_ou,"<td class=\"data2\">%s</td><td class=\"data2\">%s</td>",uinfo->label,ip); | |
255 | else | |
256 | fputs("<td class=\"data2\"></td><td class=\"data2\"></td>",fp_ou); | |
257 | fprintf(fp_ou,"<td class=\"data2\">%s-%s</td><td class=\"data2\">",data,hora); | |
67a93701 | 258 | if(BlockIt[0]!='\0' && url[0]!=ALIAS_PREFIX) { |
9bd92830 FM |
259 | fprintf(fp_ou,"<a href=\"%s%s?url=",wwwDocumentRoot,BlockIt); |
260 | output_html_url(fp_ou,url); | |
261 | fputs("\"><img src=\"../images/sarg-squidguard-block.png\"></a> ",fp_ou); | |
262 | } | |
6fa33a32 | 263 | output_html_link(fp_ou,url,100); |
67a93701 | 264 | fputs("</td></th>\n",fp_ou); |
9bd92830 FM |
265 | } |
266 | fclose(fp_in); | |
267 | longline_destroy(&line); | |
268 | ||
7ae50eee FM |
269 | if(count>AuthfailReportLimit && AuthfailReportLimit>0) |
270 | show_ignored_auth(fp_ou,count-AuthfailReportLimit); | |
271 | ||
9bd92830 FM |
272 | fputs("</table></div>\n",fp_ou); |
273 | if (write_html_trailer(fp_ou)<0) | |
274 | debuga(_("Write error in file %s\n"),report); | |
275 | if (fclose(fp_ou)==EOF) | |
276 | debuga(_("Failed to close file %s - %s\n"),report,strerror(errno)); | |
277 | ||
b378aaf1 | 278 | if (!KeepTempLog && unlink(authfail_sort)) { |
16b013cc | 279 | debuga(_("Cannot delete %s - %s\n"),authfail_sort,strerror(errno)); |
08f9b029 FM |
280 | exit(EXIT_FAILURE); |
281 | } | |
9bd92830 FM |
282 | |
283 | return; | |
25697a35 | 284 | } |
16b013cc FM |
285 | |
286 | /*! | |
287 | Remove any temporary file left by the authfail module. | |
288 | */ | |
289 | void authfail_cleanup(void) | |
290 | { | |
291 | if (fp_authfail) | |
292 | { | |
293 | fclose(fp_authfail); | |
294 | fp_authfail=NULL; | |
295 | } | |
296 | if(authfail_unsort[0]) { | |
297 | if (unlink(authfail_unsort)==-1) | |
298 | debuga(_("Failed to delete %s: %s\n"),authfail_unsort,strerror(errno)); | |
299 | } | |
300 | } |